Choosing a Gaming CPU: Single + Multi-GPU at 1440p, April 2013
by Ian Cutress on May 8, 2013 10:00 AM ESTTo start, we want to thank the many manufacturers who have donated kit for our test beds in order to make this review, along with many others, possible.
Thank you to OCZ for providing us with 1250W Gold Power Supplies.
Thank you to G.Skill for providing us with the memory kits.
Thank you to ASUS for providing us with the AMD GPUs and some IO Testing kit.
Thank you to ECS for providing us with the NVIDIA GPUs.
Thank you to Corsair for providing us with the Corsair H80i CLC.
Thank you to Rosewill for providing us with the 500W Platinum Power Supply for mITX testing, a BlackHawk Ultra, and 1600W Hercules PSU for extreme dual CPU + quad GPU testing, and RK-9100 keyboards.
Thank you to Gigabyte for providing us with the X5690 CPUs.
Also many thanks go to the manufacturers who over the years have provided review samples which contribute to this review.
Testing Methodology
In order to keep the testing fair, we set strict rules in place for each of these setups. For every new chipset, the SSD was formatted and a fresh installation of the OS was applied. The chipset drivers for the motherboard were installed, along with NVIDIA drivers then AMD drivers. The games were preinstalled on a second partition, but relinked to ensure they worked properly. The games were then tested as follows:
Metro 2033: Benchmark Mode, two runs of four scenes at 1440p, max settings. First run of four is discarded, average of second run is taken (minus outliers).
DiRT 3: Benchmark Mode, four runs of the first scene with 8 cars at 1440p, max settings. Average is taken.
Civilization V: One five minute run of the benchmark mode accessible at the command line, at 1440p and max settings. Results produced are total frames in sets of 60 seconds, average taken.
Sleeping Dogs: Using the Adrenaline benchmark software, four scenes at 1440p in Ultra settings. Average is taken.
If the platform was being used for the next CPU (e.g. Maximus V Formula, moving from FX-8150 to FX-8350), there's no need to reinstall. If the platform is changed for the next test, a full reinstall and setup takes place.
How to Read This Review
Due to the large number of different variables in our review, it is hard to accurately label each data point with all the information about that setup. It also stands to reason that just putting the CPU model is also a bad idea when the same CPU could be in two different motherboards with different GPU lane allocations. There is also the memory aspect to consider, as well as if a motherboard uses MCT at stock. Here is a set of labels correlating to configurations you will see in this review:
CPU[+][(CP)] (PCIe version – lane allocation to GPUs [PLX])
First is the name of the CPU, then an optional + identifier for MCT enabled motherboards. (CP) indicates we are dealing with a Bulldozer derived CPU and using the Core Parking updates. Inside the parentheses is the PCIe version of the lanes we are dealing with, along with the lane allocation to each GPU. The final flag is if a PLX chip is involved in lane allocation.
Thus, for example:
A10-5800K (2 – x16/x16): A10-5800K with two GPUs in PCIe 2.0 mode
A10-5800K (CP) (2 – x16/x16): A10-5800K using Core Parking updates with two GPUs in PCIe 2.0 mode
FX-8350K (2 – x16/x16/x8): FX-8350 with three GPUs in PCIe 2.0 mode
i7-3770K (3/2 – x8/x8 + x4): i7-3770K powering three GPUs in PCIe 3.0 but the third GPU is using the PCIe 2.0 x4 from the chipset
i7-3770K+ (3 – x16): i7-3770K (with MCT) powering one GPU in PCIe 3.0 mode
i7-3770K+ (3 – x8/x8/x8/x8 PLX): i7-3770K (with MCT) powering four GPUs in PCIe 3.0 via a PLX chip
Common Configuration Points
All the system setups below have the following consistent configurations points:
- A fresh install of Windows 7 Ultimate 64-bit
- Either an Intel Stock CPU Cooler, a Corsair H80i CLC or Thermalright TRUE Copper
- OCZ 1250W Gold ZX Series PSUs (Rosewill 1600W Hercules for The Beast)
- Up to 4x ASUS AMD HD 7970 GPUs, using Catalyst 13.1
- Up to 2x ECS NVIDIA GTX 580 GPUs, using GeForce WHQL 310.90
- SSD Boot Drives, either OCZ Vertex 3 128GB or Kingston HyperX 120GB
- LG GH22NS50 Optical Drives
- Open Test Beds, either a DimasTech V2.5 EasyHard or a CoolerMaster Test Lab
AMD Configurations
A6-3650 + Gigabyte A75-UD4H + 16GB DDR3-1866 8-10-10
A8-3850 + ASRock A75 Extreme6 + 16GB DDR3 1866 8-10-10
A8-5600K + Gigabyte F2A85-UP4 + 16GB DDR3-2133 9-10-10
A10-5800K + Gigabyte F2A85-UP4 + 16GB DDR3-2133 9-10-10
X2-555 BE + ASUS Crosshair V Formula + 16GB DDR3 1600 8-8-8
X4-960T + ASUS Crosshair V Formula + 16GB DDR3-1600 8-8-8
X6-1100T + ASUS Crosshair V Formula + 16GB DDR3-1600 8-8-8
FX-8150 + ASUS Crosshair V Formula + 16GB DDR3-2133 10-12-11
FX-8350 + ASUS Crosshair V Formula + 16GB DDR3-2133 9-11-10
FX-8150 + ASUS Crosshair V Formula + 16GB DDR3-2133 10-12-11 + CP
FX-8350 + ASUS Crosshair V Formula + 16GB DDR3-2133 9-11-10 + CP
Intel Configurations
E6400 + MSI i975X Platinum + 4GB DDR2-666 5-6-6
E6700 + ASUS P965 Commando + 4GB DDR2-666 4-5-5
Celeron G465 + ASUS Maximus V Formula + 16GB DDR3-2133 9-11-11
i5-2500K + ASUS Maximus V Formula + 16GB DDR3-2133 9-11-11
i7-2600K + ASUS Maximus V Formula + 16GB DDR3-2133 9-11-11
i3-3225 + ASUS Maximus V Formula + 16GB DDR3-2400 10-12-12
i7-3770K + Gigabyte Z77X-UP7 + 16GB DDR3-2133 9-11-11
i7-3770K + ASUS Maximus V Formula + 16GB DDR3-2400 9-11-11
i7-3770K + Gigabyte G1.Sniper M3 + 16GB DDR3-2400 9-11-11
i7-3930K + ASUS Rampage IV Extreme + 16GB DDR3-2133 10-12-12
i7-3960X + ASRock X79 Professional 16GB DDR3-2133 10-12-12
Xeon X5690 + EVGA SR-2 + 6GB DDR3 1333 6-7-7
2x Xeon X5690 + EVGA SR-2 + 9GB DDR3 1333 6-7-7
The Beast
The Beast is a special machine put together to help with the review as a result of various hardware coming into my possession all at the same time. The core of the system is an EVGA SR-2 motherboard, the best and last dual processor motherboard to deal with overclockable Xeon processors. This is paired with a couple of X5690 Xeon processors, the highest clocked Westmere Xeon that Intel offers, and many thanks to Gigabyte for loaning these to us for a pair of reviews. I went and purchased a pair of Intel Xeon socket 1567 coolers for the system, which have a 2U z-height restriction but are copper piped and cooled by powerful (and loud) delta fans. These provided enough cooling power to push the Xeons from 3.43GHz to 4.6GHz during some overclocking attempts, so are more than adequate for the job at hand (if you can put up with the noise).
Our system is paired with some high quality DDR3 Hyper memory, once famed for its overclocking prowess but due to frequent deaths from high voltage, is now relegated as a memory for overclockers. However at stock this memory performs great, often in the region of DDR3-2000 C7, so our memory kits are well primed for this setup.
Of course a full system is nothing without a case and power supply to help justify a build. With the motherboard being absolutely huge, no standard case would take it – only large cases designed for desktop-based server 2P motherboards are adequate. Luckily there is one case which is selling well, and Dustin reviewed recently – the Rosewill Blackhawk Ultra. Aside from the weight, this case had no issues with installing the motherboard; it could easily fit in another 10 HDDs, four optical bays, and any major GPU setup you could possibly think of – with plenty of fans just for good measure. Read Dustin’s review for a more thorough analysis, but I have some good shots of the system and motherboard installed for you:
Rosewill also has the perfect power supply for dealing with a dual processor, quad CrossFireX setup. First, consider how many connections this 2P setup needs – we have a normal 24-pin ATX connector for the motherboard, one 8-pin CPU power connector for each CPU, an additional 6-pin PCIe power connector for each CPU to provide extra power, another 6-pin PCIe power connector to provide power to the PCIe slots, and then two 6+2 PCIe power connectors for the GPUs. That makes 11 PCIe connectors needed in total, and this is alongside all the fans in the case and whatever SSD/ODD setup a user wants. The power supply used for this monster is the 1600W Hercules, rated 80PLUS Silver. With access to 16 PCIe connectors, the only way you might need any more is with a compute rig having seven single slot cards each needing two connectors. With the CPUs and GPUs both overclocked, our system was drawing almost 1500W at the wall (at a 240V source) under a high CPU+GPU load.
Using a 2P system as a desktop comes with its own set of issues, namely some CPU benchmarks not optimized for 2P, or in this case, some trouble getting some games to even work. It seems that the more money you can throw at a gaming system the more problems start to arise, but The Beast provides a nice comparison point when we look at high-end Ivy Bridge, Sandy Bridge-E and Piledriver processors in multiple-GPU setups.
Our first port of call with all our testing is CPU throughput analysis, using our regular motherboard review benchmarks.
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TheJian - Thursday, May 16, 2013 - link
Am I supposed to not respond now? You just said I have no manners, am uncivilized, have no objectivity, and previously I’m offensive and it’s ok to HATE me…ROFL. POT – MEET KETTLE. If you were to take your own advice, shouldn’t you have just said “you could word it differently but I agree with the data” and left it at that? No, you took it much further with what amounts to an ad hominem attack on ME. You posted 333 words yourself to do it. :) But thanks for recognizing the work I put in :) I can type 60+wpm though so, not that much effort really and two to three times that with Dragon Naturally Speaking premium easily (pick up a copy if you can't keep up - 1600 words in about 9 minutes...ROFL v12.5 rocks). The homework takes time, but that was already done before they wrote this article as I read everything I can find on stocks I track and parts I'm interesting in.I've watched this site (and toms) since they were born. 1997 I think here. I did leave toms when Tom Pabst himself forced out Van Smith over the sysmark crap years ago (and removed his name from ALL of his articles he wrote there, putting "tomshardware staff" or some such in Van's name's place). That was AWFUL to watch and I loved reading Tom Pabst's stuff for years. Millions of people were snowed there while they made AMD look like crap in articles with sysmark flagging Intel chips and turning off SSE on AMD. Eventually people like Van, I and others said enough that people took notice and it devalued his site before he sold it. Rightfully so if you ask me, as he was basically an Intel shill at that point as many had pointed out by then.
At some point somebody has to stand up and tell the truth like Van tried to do. It cost him his job, but the message made it through. Someone has to be willing to “take the hate” for other people's benefit. :) Or nothing will ever get fixed right? People reviewing stuff for millions need some kind of checks and balances right? There are NONE right now in our govt and look what’s happening there as they spend us into bankruptcy amid scandal after scandal kicking our financial future down the road time and again. If we had checks and balances for REAL our president would be in jail along with many dirty congress members on both sides (he just got caught wiretapping the AP – freedom of speech is being trampled, gun rights assaulted, our constitution is attacked at every turn!). People are DEAD possibly because this guy did NOTHING to save them in Benghazi for 7 hours under attack. What happened in Boston? Etc…I'm seeing the same stuff happen here that happened at Tomshardware. Someone has to correct them instead of congratulating them right? Otherwise so many people will make the wrong purchasing decisions based on bad advice from influential and supposedly trusted people (I still like this site, just want back to the neutral stance it used to have for years). In this economy I'd be thanking anyone who takes the time and effort to attempt to save me from buying a piece of junk with my hard earned money. In a nutshell this is why I take the time to show another side for people to consider. They don’t have to believe me, that’s the point of the links, quotes from those links etc. I WANT you to look at the data and make up your own minds. Either it costs this site tons of hits eventually and wakes them up or they need to be put out of business. If nobody ever complained about Win8 how long would we get crap like that? Look how fast it got an 8.1 version as a response and the product manager fired. Put their feet to the fire or they don’t stop ever.
Anand would have to be seeing his sites traffic go down.
http://www.alexa.com/siteinfo/anandtech.com#
If someone takes the time to prove you’re putting up bad data article after article and there is no defense put up (because there isn’t a defense) you are eventually taken down. Jared attacked me in Aug 2012. Pity you can’t go back a year but you can see this site is sliding at least at alexa for the last 6 months. Until they quit yanking our chains I’ll keep yanking theirs if my time allows! Toms went from 10mil to 2mil in just a couple years. I’m not sure what he sold for but it was far less than he’d have gotten before attacking Van, the article shenanigans etc.
Tell me, what parts of my comments were UNCIVILIZED or RUDE? Did I call anyone a name? Say they are stupid? Did I attack ANYONE personally? Did I do what you did? Actually I did quite the opposite. I said they are NOT ignorant and know exactly what they're doing here (hmm, insinuated intelligence…That’s a good comment right?). I even let Ian off multiple times (he's just doing what he's told no doubt) and noted from the get go he did a lot of work, but due to "someone" pushing bad data to hide AMD's faults it's all wasted. I attacked the crap this site is pushing (crap too harsh for you?), not any of the people themselves (who I'm sure are probably nice guys - well, I can't say that about them all, Jarred attacked ME not the data when I buried Ryan's conclusions and benchmarks). Did I swear at someone? Did I spew hate like the guy who gave a one liner to me? He's claiming its ok to HATE me? When did I ever cross a line like that? Is a debate of the facts worthy of HATE today?
If you hate the length of my post don't read it. Take your own advice, move along please. Was it necessary for you to post 1000 words back? :) I'd say even the HATERS took me seriously (the only ones that responded besides Tential – what 2 total plus a polite tential?) and saw the arguments were valid and listened. ALL of them did in their own way. Only the first below wasn’t rude as you say and just discussed what I was saying- tential - no flare up from him, just good old fashioned debate:
"I don't agree with your analysis on consoles but everything else sure. Gaming for 98% of people is 1080p."
Tential clearly got the message despite our console differences (they weren’t the point really). I’m sure tons of others did even if they’re silent about it. I used to be SILENT. You can’t argue with steampowered.com’s data, nor everyone else showing the res you SHOULD be running here. You can confirm via techreport, hardocp, tomshardware, etc I gave plenty of links and quotes for people to analyze.
"We might all hate this guy (for good reason) but the words he writes regarding CPU performance in this article have a lot of truth."
WOW...But at least he saw the truth, and his name is hilarious to me :) Did I attack back? NOPE. Even when he seriously crossed a line IMHO I did nothing but a polite rebuttal with some questions – still waiting for why he thinks it’s ok to HATE people for simple comments, but I don’t mind either way, even he got the message. Worse you agreed with the hate...LOL
Here’s you:
"Agreed. What he wrote is offending, emotional and hardly objective. However, there's a truth hidden in there somewhere. Consider the following scenario."
Comic, I said nothing bad about people, just their data. But to you, it's OK to hate me for it and then toss comments about my character...This goes back to the double standard I mentioned in my previous posts.
There is nothing wrong with a vigorous debate of the facts in any case and I was CIVIL though critical. This was an article about the proper choice of a GAMER cpu. As presented the data is lies as they presented a situation that doesn’t exist (as even you pointed out in your scenario basically). It would be just "incorrect" if they didn't know what they were doing. But they DO know. They know they’re hiding FCAT data as I pointed out. AMD only talks to them as Guru3d recently pointed out (hilbert did). Odd, yes?
I find it funny I already answered your questions before with comments like this (but why not do another 1600 word essay for you) :) :
“People will eventually JUDGE this site accordingly if you keep this stuff up. I sincerely hope this site returns to good neutral data soon.”
This doesn’t tell you why I’m doing it? I claim OTHER websites I pointed to are OBJECTIVE and VALID. I piled on with my own observations, but I was merely quoting others who all disagree with this site. That’s not subjective that’s FACT. It’s not my point of view; it is the same one as EVERY other site reporting this type of data. Hardocp, Techreport, PCper, Tomshardware. How many do I need before you call me objective? I can give more sites and another 1000 words of quotes…LOL. I can scientifically claim the resolution they chose here to make all cpu’s show the same perf because the gpu is bottlenecking everything, represents less than 1% of the population and I will be RIGHT. Introducing a variable that totally invalidates the entire premise of the experiment is not subjective, it’s misleading at best and easily proved wrong as I have done. My message travelled far enough as nobody missed it as far as I can tell. Mission accomplished, gentle or NOT ;)
If you don’t like my posts, To quote you:
“why can't you just look past them? What is your problem?”
“why don't you just... leave?”
:) Gee, it seems I've upset you ;)
"What are you doing here - are you some sort of freedom fighter for objective data on the internet?"
Already answered and YES, why not :) What are you doing here? Are you some kind of smart alec that objects to people voicing their RELEVANT opinions in a "comment" section? Silly me, I thought that's what this section is for. Can we get back to discussing the data now? You've distracted us all from the topic at hand long enough and it isn't changing the data one bit.
OwnedKThxBye - Thursday, May 16, 2013 - link
Sorry for seriously crossing the line good sir but I still reserve the right to hate you if I choose. A wise man once wrote “We are FAR to sensitive today. It's like nobody can take a criticism these days and the person who gives it is evil...LOL.” <--- this is you =). Keep in mind I was also the first one to agree with you… What you write never fails to bring a smile to my face TheJian, and I hope you don’t stop pointing out the truth any time soon. Just try to keep the next comment shorter so we can read it without so much scrolling..... we don't all own LCDs with 1440+ vertical pixels like we are told to. In the end all we can pray for is a few less gamers to run out and buy an A8-5600K for their HD7970 and for a few of your points to be taken into consideration next time round.yhselp - Sunday, May 26, 2013 - link
First of all, I’d like to apologize for this long-delayed response – I simply didn’t have the time.Truly epic. To start off, you haven't upset me, really; not before and not now - I was genuinely curious as to what it is that you think you're accomplishing by all this (not just this article, others as well). Thus, I set forth to playfully provoke you into responding. Success. Now that you’ve answered, and to be fair – more clearly than expected, I have a better understanding of what urges you to do what you do. Such a peculiar case you are, I am fascinated – are you a troll or aren’t you? Somewhere in between I guess. The arguments you provide are sound, although I still think they’re a bit… let’s not use a word as I’m sure you will twist it into a meaning of your choosing (not originally intended); and most of what you say is, well, adequate – all that makes you not-troll after all. Despite that fact that you would’ve probably responded to anything anyway, I still feel that a ‘thank you’ on my side is necessary for your taking the time to respond; and I’m not being ironic here.
Now, let’s get a few things out of the way. Note that I’m neither defending nor criticizing AnandTech, I’m simply voicing an opinion just the way you are. Very important – I never said it was okay to hate you or anybody for that matter, you deduced that yourself. I simply agreed with the gist of what OwnedKThxBye said. You cannot cling to ever word you read online, I don’t think anybody here truly feels hate, certainly not me. People just throw words around in the heat of the moment just the way you debate vigorously, I’m sure you understand that. The semantic field of the word ‘hate’ in 21st century contemporary English is huge, especially when used in this type of discourse.
Why would you blame me for distracting “us all” from the topic at hand when you are the King of Sidetracking? Gotta love your insights on US politics – it’s like watching one of those documentaries on History and the like. My favorite part is about “gun rights” – nice, so eloquently put. The only reason we still have the Second Amendment is because the US cannot just change the Bill of Rights which is part of the oldest acting constitution in the world – it’s a matter of national pride. The reason it was written is a historical occurrence no longer valid. During Colonial times the settlers had to harbor British soldiers which often mistreated them, and so the settlers needed a means of protection. That is how the Second Amendment came to be. Obviously, this is no longer the case. You could argue the right to bear arms is part of Americannness, but this doesn’t change the fact that the original, intended reason for the Second Amendment is a thing of the past.
Checks and balances for the consumer computer industry – so amusing. Manufacturers, Reviewers and Consumers each checking on the others; that is such an utopian concept. You say it doesn’t work for a country’s government, how do you expect it to work for an industry where money is king? There would always be hidden agendas, you can’t stop that.
I believe I’ve discovered a new form of entertainment, and that is reading Jian’s comments. You, sir, are crazy. I don’t mean this as an insult. Keep on fighting the good fight, I can’t wait to read more of your comments; and, please, never stop sidetracking and using internet abbreviations such as LOL.
azdood - Wednesday, May 15, 2013 - link
Hi Ian, have you ever considered testing time between turns on Civ5? CPU makes a HUGE difference especially as you get deep into a game.tential - Thursday, May 16, 2013 - link
This is partially at that Jian guy and at everyone. I understand the desire for high end GPU reviews but using your OWN earlier posts, you stated that the majority of people game at 1080p. If that's the case, whats the point of pushing for a 7990, Titan, FCAT review when quite frankly NO ONE HAS THOSE CARDS. According to your own data and posts from the previous page.To me it seems like you're just trolling however, because you brought up the point of affordability, I think that that's where the majority of reviews should target. YES I want to see how the 7970 and the GTX 680 perform, yes I want to see the next gen too, but I really don't think we should waste so much time on Multi GPU setups that under 1% of the gaming community has.
How about more reviews on upgrade paths, Price to Performance, how to get the most performance at a reasonable price point. That's what I care to see. Any review in which the hardware being tested exceeds 2k (I mean additional hardware), to me is just boring because at the end of the day, I'm not buying two titans, or two 7990s, or even 3 7970s.
This is of course my PERSONAL opinion, but considering data backs it up, I'd like to see some more reviews cater to the average (when I say average I mean average in terms of the gamer who reads reviews and makes educated price to performance ratio choices) gamer.
This review kind of tries to do that but in all reality, we aren't gaming at 1440p so more reviews at how to get the best performance at 1080p for a good price, while leaving us a decent upgrade path would be nice.
FriedZombie - Friday, May 17, 2013 - link
Could you possibly go to some slightly older processors and GPUs? In particular the i7-990x would be a great start and the lower and upper end of AMDs 6000 series would be nice too (it seems a LOT of people upgraded from the 5000 series to the 7000 series this year) A benchmarking for Witcher 2 would be nice as well as max settings with Ubersampling turned on is extremely taxing on both CPU and GPU because of how inefficient CDProjekt's RED engine is.ol1bit - Friday, May 17, 2013 - link
All I can say is WOW!Nice work!
qulckgun - Sunday, May 19, 2013 - link
62yrs old play ~150hrs a month. Ready to build new PC. Know next to nothing about building new PC. Read various forums and articles and find the comment sections are great at clearing up some of what I didn't understand in the main article. That being said this is one of the most intertaining comment sections I've read in awhile and was pretty informative. It's helped me put into perspective my hardware choices. Please lets agree to disagree but in a respectable manner. Thank you all for your comments and responces, it's an education.Rob94hawk - Sunday, May 19, 2013 - link
This was a great article! I'm surprised you didn't use a QX9770 for socket 775. Any reason for that?bds71 - Wednesday, May 22, 2013 - link
Ian - since the new 4k TV's are out, i think these types of reviews are very indicative of what we can expect once we are able to hook a PC up (using multiple outputs - such as eyefinity or nVidia surround) to a single input 4k TV. for those who don't know, the new 4k standard (3840x2160) is equivelant to eyefinity or nVidia surround at 1080p, but with 4 monitors instead of 3, and in a normal 16x9 format rather than the super wide 3 screen setups. ie: --|--|-- vs ==|== note: equivelant resolution, but not actually 4 monitors :)can't wait for THAT testing to begin. assuming an owner can turn off overscan (so you can see the taskbar at the bottom) i indeed intend to purchase one (likely, soon) and would definately want to hook my PC to it. my GTX690 would likely be able to do OK at such a resolution, but i would eventually want to get another 690 - as soon as i could figure out how to utilize the second card with only a single HDMI input on the TV.
as far as blue ray content - if you wait....it will come :)