NVIDIA’s GeForce GTX Titan Review, Part 2: Titan's Performance Unveiled
by Ryan Smith & Rahul Garg on February 21, 2013 9:00 AM ESTSynthetics
As always we’ll also take a quick look at synthetic performance to get a better look at Titan’s underpinnings. These tests are mostly for comparing cards from within a manufacturer, as opposed to directly comparing AMD and NVIDIA cards. We’ll start with 3DMark Vantage’s Pixel Fill test.
Pixel fill is a mix of a ROP test and a test to see if you have enough bandwidth to feed those ROPs. At the same time the smallest increase in theoretical performance for Titan over GTX 680 was in ROP performance, where a 50% increase in ROPs was met with a minor clockspeed reduction for a final increase in ROP performance of 25%.
The end result is that with gains of 28%, Titan’s lead over GTX 680 is just a hair more than its increase in theoretical ROP performance. Consequently at first glance it looks like Titan has enough memory and cache bandwidth to feed its 48 ROPs, which given where we’re at today with GDDR5 is good news as GDDR5 has very nearly run out of room.
Moving on, we have our 3DMark Vantage texture fillrate test, which does for texels and texture mapping units what the previous test does for ROPs.
Oddly enough, despite the fact that Titan’s texture performance improvements over GTX 680 were only on the range of 46%, here Titan is measured as having 62% more texturing performance. This may be how Titan is interplaying with its improved bandwidth, or it may be a case where some of the ancillary changes NVIDIA made to the texture paths for compute are somehow also beneficial to proper texturing performance.
Finally we’ll take a quick look at tessellation performance with TessMark.
Unsurprisingly, Titan is well ahead of anything else NVIDIA produces. At 49% faster it’s just a bit over the 46% theoretical performance improvement we would expect from the increased number of Polymorph Engines the extra 6 SMXes bring. Interestingly, as fast as GTX 580’s tessellation performance was, these results would indicate that Titan offers more than a generational jump in tessellation performance, nearly tripling GTX 580’s tessellation performance. Though at this time it’s not at all clear just what such tessellation performance is good for, as we seem to be reaching increasingly ridiculous levels.
Facebook
Twitter
RSS
337 Comments
View All Comments
Ryan Smith - Thursday, February 21, 2013 - link
PCI\VEN_10DE&DEV_1005&SUBSYS_103510DEI have no idea what a Tesla card's would be, though.
alpha754293 - Thursday, February 21, 2013 - link
I don't suppose you would know how to tell the computer/OS that the card has a different PCI DevID other than what it actually is, would you?NVIDIA Tesla C2075 PCI\VEN_10DE&DEV_1096
Hydropower - Friday, February 22, 2013 - link
PCI\VEN_10DE&DEV_1022&SUBSYS_098210DE&REV_A1For the K20c.
brucethemoose - Thursday, February 21, 2013 - link
"This TDP limit is 106% of Titan’s base TDP of 250W, or 265W. No matter what you throw at Titan or how you cool it, it will not let itself pull more than 265W sustained."The value of the Titan isn't THAT bad at stock, but 106%? Is that a joke!?
Throw in an OC for OC comparison, and this card is absolutely ridiculous. Take the 7970 GE... 1250mhz is a good, reasonable 250mhz OC on air, a nice 20%-25% boost in performance.
The Titan review sample is probably the best case scenario and can go 27MHz past turbo speed, 115MHZ past base speed, so maybe 6%-10%. That $500 performance gap starts shrinking really, really fast once you OC, and for god sakes, if you're the kind of person who's buying a $1000 GPU, you shouldn't intend to leave it at stock speeds.
I hope someone can voltmod this card and actually make use of a waterblock, but there's another issue... Nvidia is obviously setting a precedent. Unless they change this OC policy, they won't be seeing any of my money anytime soon.
JarredWalton - Thursday, February 21, 2013 - link
As someone with a 7970GE, I can tell you unequivocally that 1250MHz on air is not at all a given. My card can handle many games at 1150MMhz, but other titles and applications (say, running some compute stuff) and I'm lucky to get stability for more than a day at 1050MHz. Perhaps with enough effort playing with voltage mods and such I could improve the situation, but I'm happier living with a card for a couple years that doesn't crap out because of excessively high voltages.CeriseCogburn - Saturday, February 23, 2013 - link
" After a few hours of trial and error, we settled on a base of the boost curve of 9,80 MHz, resulting in a peak boost clock of a mighty 1,123MHz; a 12 per cent increase over the maximum boost clock of the card at stock.Despite the 3GB of GDDR5 fitted on the PCB's rear lacking any active cooling it too proved more than agreeable to a little tweaking and we soon had it running at 1,652MHz (6.6GHz effective), a healthy ten per cent increase over stock.
With these 12-10 per cent increases in clock speed our in-game performance responded accordingly."
http://www.bit-tech.net/hardware/2013/02/21/nvidia...
Oh well, 12 is 6 if it's nVidia bash time, good job mr know it all.
Hrel - Thursday, February 21, 2013 - link
YES! 1920x1080 has FINALLY arrived. It only took 6 years from when it became mainstream but it's FINALLY here! FINALLY! I get not doing it on this card, but can you guys PLEASE test graphics cards, especially laptop ones, at 1600x900 and 1280x720. A lot of the time when on a budget playing games at a lower resolution is a compromise you're more than willing to make in order to get decent quality settings. PLEASE do this for me, PLEASE!JarredWalton - Thursday, February 21, 2013 - link
Um... we've been testing 1366x768, 1600x900, and 1920x1080 as our graphics standards for laptops for a few years now. We don't do 1280x720 because virtually no laptops have that as their native resolution, and stretching 720p to 768p actually isn't a pleasant result (a 6.7% increase in resolution means the blurring is far more noticeable). For desktop cards, I don't see much point in testing most below 1080p -- who has a desktop not running at least 1080p native these days? The only reason for 720p or 900p on desktops is if your hardware is too old/slow, which is fine, but then you're probably not reading AnandTech for the latest news on GPU performance.colonelclaw - Thursday, February 21, 2013 - link
I must admit I'm a little bit confused by Titan. Reading this review gives me the impression it isn't a lot more than the annual update to the top-of-the-line GPU from Nvidia.What would be really useful to visualise would be a graph plotting the FPS rates of the 480, 580, 680 and Titan along with their release dates. From this I think we would get a better idea of whether or not it's a new stand out product, or merely this year's '780' being sold for over double the price.
Right now I genuinely don't know if i should be holding Nvidia in awe or calling them rip-off merchants.
chizow - Friday, February 22, 2013 - link
From Anandtech's 7970 Review, you can see relative GPU die sizes:http://images.anandtech.com/doci/5261/DieSize.png
You'll also see the prices of these previous flagships has been mostly consistent, in the $500-650 range (except for a few outliers like the GTX 285 which came in hard economic times and the 8800Ultra, which was Nvidia's last ultra-premium card).
You an check some sites that use easy performance rating charts, like computerbase.de to get a quick idea of relative performance increases between generations, but you can quickly see that going from a new generation (not half-node) like G80 > GT200 > GF100 > GK100/110 should offer 50%+ increase, generally closer to the 80% range over the predecessor flagship.
Titan would probably come a bit closer to 100%, so it does outperform expectations (all of Kepler line did though), but it certainly does not justify the 2x increase in sticker price. Nvidia is trying to create a new Ultra-premium market without giving even a premium alternative. This all stems from the fact they're selling their mid-range part, GK104, as their flagship, which only occurred due to AMD's ridiculous pricing of the 7970.