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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akLuckyCharm - Saturday, August 30, 2014 - link
Thank you Anand Tech for showing performance with ALL of the cpus overclocked as apposed to only one chip overclocked and the rest at stock. This makes the comparison much more fair and realistic.MrSpadge - Saturday, August 30, 2014 - link
I really like the analysis of performance per clock. It really helps me to judge CPU performance. However, why do you disable HT for these tests? All the CPUs considered have it, and on average it boosts performance. And most importantly:"Haswell bought... two new execution ports and increased buffers to feed an increased parallel set of execution resources... Intel doubled the L1 cache bandwidth."
Right. Which means Haswell may very well see better performance improvements from enabling HT than older CPUs. This could be very relevant for the workloads which people should run on these 6 and 8 core monsters. And by that I'm not talking about gaming ;)
vision33r - Sunday, August 31, 2014 - link
Most people don't need this setup because the only thing here is really your Haswell processor with couple of extra cores, a few different parts for DDR4, and a little bump here in L2 and that's it. Games don't need all of these changes because most games today are sophisticated enough to utilize them.I can certainly see that my VM and rendering machine will love the new 5960X and DDR4 but it's not worth investing in new platform when it just came out.
Anyone that does high end AV content creation will see a big bump if you got the money to spend on it.
HongKonger1997 - Sunday, August 31, 2014 - link
So if I only game with computer, my 3960X is still good?MrSpadge - Sunday, August 31, 2014 - link
Of course. Even a Sandy Bridge i5 would easily do the jpb, a 3960X is actually complete overkill.Artemis *Seven* - Sunday, August 31, 2014 - link
All great benchmarks except for the gaming ones. It's pretty common knowledge that Geforce cards like to handle almost everything "in-house" whereas AMDs tend to dump a big chunk of their workload onto the CPU. All I'm saying is that I'd love to see a gaming benchmark redone with R9's - I'm betting it would show the differences between these processors in games better - if there are actually any :Dmlambert890 - Monday, September 1, 2014 - link
the differences are minor with PURE cpu tests. sandy e to ivy e is about 5% ipc gain. ivy e to hw e is another 8% or so, but it suffers a 10% oc ceiling deficit against them and it has higher latency ram to boot.unless your workload truly has 8 threads or you multitask to the point you are saturating 6 fast cores this is a non upgrade coming from sandy or ivy
woj666 - Sunday, August 31, 2014 - link
It's curious why they used the dud 5960 results for overclocking vs the one that kept up to the 4790 in overclocking. I detect some 4 core bias here.A 5960@4.0 will run at the same temperature as a 4790@4.0.
mlambert890 - Monday, September 1, 2014 - link
double the active cores at same clock rate equals lots more power which equals lots more heat. notice the tdp values?faster - Sunday, August 31, 2014 - link
I might finally upgrade my work computer. I'm running an i7 920 with 8gb memory and a 256 GB SSD drive. I need that extra power for word processing, emailing, and surfing the web. Oh wait, no I don't. For the basic computer user, computers have been fast enough for many years.For my home gaming machine, I don't see a reason to upgrade my 4770k.