The Intel Haswell-E CPU Review: Core i7-5960X, i7-5930K and i7-5820K Tested
by Ian Cutress on August 29, 2014 12:00 PM ESTLoad Delta Power Consumption
Power consumption was tested on the system while in a single MSI GTX 770 Lightning GPU configuration with a wall meter connected to the OCZ 1250W power supply. This power supply is Gold rated, and as I am in the UK on a 230-240 V supply, leads to ~75% efficiency under 50W and 90%+ efficiency at 250W, suitable for both idle and multi-GPU loading. This method of power reading allows us to compare the power management of the UEFI and the board to supply components with power under load, and includes typical PSU losses due to efficiency.
We take the power delta difference between idle and load as our tested value, giving an indication of the power increase from the CPU when placed under stress. Unfortuantely we were not in a position to test the power consumption for the two 6-core CPUs due to the timing of testing.
Because not all processors of the same designation leave the Intel fabs with the same stock voltages, there can be a mild variation and the TDP given on each CPU is understandably an absolute stock limit. Due to power supply efficiencies, we get higher results than TDP, but the more interesting results are the comparisons. The 5960X is coming across as more efficient than Sandy Bridge-E and Ivy Bridge-E, including the 130W Ivy Bridge-E Xeon.
Test Setup
| Test Setup | ||||
| Processor |
Intel Core i7-5820K Intel Core i7-5930K Intel Core i7-5960X |
6C/12T 6C/12T 8C/16T |
3.3 GHz / 3.6 GHz 3.5 GHz / 3.7 GHz 3.0 GHz / 3.5 GHz |
|
| Motherboard |
ASUS X99 Deluxe ASRock X99 Extreme4 |
|||
| Cooling |
Corsair H80i Cooler Master Nepton 140XL |
|||
| Power Supply |
OCZ 1250W Gold ZX Series Corsair AX1200i Platinum PSU |
1250W 1200W |
80 PLUS Gold 80 PLUS Platinum |
|
| Memory |
Corsair 4x8 GB G.Skill Ripjaws4 |
DDR4-2133 DDR4-2133 |
15-15-15 1.2V 15-15-15 1.2V |
|
| Memory Settings | JEDEC | |||
| Video Cards | MSI GTX 770 Lightning 2GB (1150/1202 Boost) | |||
| Video Drivers | NVIDIA Drivers 337.88 | |||
| Hard Drive | OCZ Vertex 3 | |||
| Optical Drive | LG GH22NS50 | |||
| Case | Open Test Bed | |||
| Operating System | Windows 7 64-bit SP1 | |||
| USB 2/3 Testing | OCZ Vertex 3 240GB with SATA->USB Adaptor | |||
Many thanks to...
We must thank the following companies for kindly providing hardware for our test bed:
Thank you to OCZ for providing us with PSUs and SSDs.
Thank you to G.Skill for providing us with memory.
Thank you to Corsair for providing us with an AX1200i PSU and a Corsair H80i CLC.
Thank you to MSI for providing us with the NVIDIA GTX 770 Lightning GPUs.
Thank you to Rosewill for providing us with PSUs and RK-9100 keyboards.
Thank you to ASRock for providing us with some IO testing kit.
Thank you to Cooler Master for providing us with Nepton 140XL CLCs and JAS minis.
A quick word to the manufacturers who sent us the extra testing kit for review, including G.Skill’s Ripjaws 4 DDR4-2133 CL15, Corsair for similar modules, and Cooler Master for the Nepton 140XL CLCs. We will be reviewing the DDR4 modules in due course, including Corsair's new extreme DDR4-3200 kit, but we have already tested the Nepton 140XL in a big 14-way CLC roundup. Read about it here.
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StevoLincolnite - Saturday, August 30, 2014 - link
You obviously have never played with an x58 system with it's triple-channel DDR3 set-up.You *can* actually run 48Gb of Ram, but it's also not guaranteed to actually work, some people managed to win the luck of the draw early on.
Some people who installed 48Gb of memory would only have 32Gb of Ram detected.
Conversely, x58 processors actually have a 36-bit address bus, so theoretically they could support even 64Gb of Ram.
Basically, Intel guarantees up-to 24Gb to function, doesn't mean it cannot handle more.
K_Space - Friday, August 29, 2014 - link
Agreed. I do think this justifies the switch from Nehalem 920; however the price of DDR4 is far too prohibitive. Given that fact that Skylake is rumoured to be around the corner ?Q3 2015 (will probably get pushed back); I'm just going to a grab a bargain used X5670 6-core for $120. I have to say, I never thought the 4.1Ghz 24/7 920 would hold for this long.Multi-GPU and newer PCI-E storage solutions will mean that 40 lanes will matter in a generation or two.
GammaLaser - Friday, August 29, 2014 - link
Cinebench R15 multithreaded score is "1337", coincidence? I think not.ochadd - Friday, August 29, 2014 - link
As a gamer it looks like my overclocked 2600k will remain in it's place. Was hoping for more.maroon1 - Friday, August 29, 2014 - link
Games are limited by the GPU most of the time. Even if the CPU is 10 times faster, you might not see a big gains in gamingThe_Assimilator - Friday, August 29, 2014 - link
So X99 has the same specifications as Z87, just with 4 extra SATA ports that cannot be RAIDed. Warrants a resounding "meh" from me. Intel could have at least increased the number of USB 3.0 ports.wireframed - Friday, August 29, 2014 - link
The Z-platform is the enthusiast platform, this is an entirely different segment. For instance, you'll never get 6 cores on the Z-platform, so the comparison is kinda silly. :)garadante - Friday, August 29, 2014 - link
I hope you're wrong with your never statement. If we're still on 4 cores on the Z platform by Montlake or the generation afterwards, I will be very, very disappointed. Intel either needs to aggressively expand core counts to give developers a reason to make software utilizing more threads or push aggressively for increased IPC. Otherwise my 2500k could last a very, very long time.Makaveli - Friday, August 29, 2014 - link
why do you guys keep referring to the i7 990x chip as nelahem when its Gulftown?nonoverclock - Saturday, August 30, 2014 - link
Good point. I looked it up and Gulftown is a Westmere microarchitecture CPU.