The Intel Broadwell Desktop Review: Core i7-5775C and Core i5-5675C Tested (Part 1)
by Ian Cutress on June 2, 2015 7:45 AM ESTTest Setup
As we mentioned in our introduction, Intel's 9-series chipset were designed from the start to allow future compatibility with Broadwell. As a result with a BIOS update we're able to drop these processors into our existing MSI and ASUS Z97 boards, though not without some pre-release BIOS teething issues.
| Test Setup | |
| Processor | Intel i7-5775C, 4C/8T Intel i5-5675C, 4C/4T |
| Motherboard | MSI Z97A Gaming 6 ASUS Z97 Pro |
| DRAM | G.Skill RipjawsZ 4x4GB DDR3-1866 C9 at DDR3-1600 |
| Low End GPU | Integrated ASUS R7 240 2GB DDR3 Dual Graphics with R7 240 |
| Mid Range GPU | MSI R9 285 Gaming 2GB MSI GTX 770 Lightning 2GB |
| High End GPU | MSI R9 290X Gaming LE 4GB ASUS GTX 980 Strix 4GB |
| Power Supply | OCZ 1250W Gold |
| Storage Drive | Crucial MX200 1TB |
| Operating System | Windows 7.1 64-bit, Build 7601 |
| CPU Cooler | Cooler Master Nepton 140XL CLC |
Many thanks to...
We must thank the following companies for kindly providing hardware for our test bed:
Thank you to AMD for providing us with the R9 290X 4GB GPUs.
Thank you to ASUS for providing us with GTX 980 Strix GPUs and the R7 240 DDR3 GPU.
Thank you to ASRock and ASUS for providing us with some IO testing kit.
Thank you to Cooler Master for providing us with Nepton 140XL CLCs.
Thank you to Corsair for providing us with an AX1200i PSU.
Thank you to Crucial for providing us with MX200 SSDs.
Thank you to G.Skill and Corsair for providing us with memory.
Thank you to MSI for providing us with the GTX 770 Lightning GPUs.
Thank you to OCZ for providing us with PSUs.
Thank you to Rosewill for providing us with PSUs and RK-9100 keyboards.
Load Delta Power Consumption
We'll start things off with a look at power consumption. Power consumption was tested on the system while in a single NVIDIA GTX 770 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 > 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 are reporting the power consumption difference when idle and during an initial OCCT load. This is slightly skewed by the adjustment up the efficiency chain of our power supply, showing lower power CPUs consuming a little more, but despite this the qualitative comparison is a still a good place to start.
Despite our test being almost qualitative, it is exciting to see that in our power consumption limit test both CPUs score around their TDP values.
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Oxford Guy - Wednesday, June 10, 2015 - link
"I know it's a dead socket, but could we AM3+ users request a CPU be thrown in the mix?"It might mess up the charts, which clearly make it look like you need to buy an Intel CPU rather than a $100 8320E with a motherboard discounted $40 (Microcenter).
Spectrophobic - Sunday, June 7, 2015 - link
I think an i7 with an Iris Pro 6200 is just a waste of die space, considering that you should be using a discrete card. An i5 should be fine, but an i3 w/ 6200 would be great at HTPC and light media scenarios.Doubt they're gonna release another Broadwell though. Hopefully i3 Skylake get the Iris Pro treatment.
PauloBrazil - Thursday, June 11, 2015 - link
is missing the tests with DirectX 12DirectX 11 is already exceeded
DirectX 11 uses more single core
Romulous - Thursday, June 11, 2015 - link
Some reviewerstwhile correctly call UHD .. well UHD. I thought a site like anandtech would get this correct. Stop calling it 4K!crashtech - Tuesday, June 16, 2015 - link
OK, time for part 2, please! :)varg14 - Wednesday, June 17, 2015 - link
When is part 2?Staafk - Wednesday, June 17, 2015 - link
Also waiting for part 2 now. Any eta on that? :-)Also I don't see why people don't want integrated graphics on high end cpus. I am under the impression that the integrated graphics is able to work with the discrete graphics card with dx12, adding some fps at least vs a cpu with no integrated graphics?
tuxRoller - Sunday, June 21, 2015 - link
You might want to give the phoronix test suite a look.It is very easy to use and provides many, many tests.AnnonymousCoward - Thursday, June 25, 2015 - link
I don't get it. Someone please explain why Intel doesn't make a non-iGPU version to cut their silicon cost in half for those who don't want it.edwardtoday - Monday, July 13, 2015 - link
In the 2nd page, the first word of the paragraph above the "Broadwell-K, or is it Broadwell-C, or Broadwell-H?" header, "Ultiamtely", should be "Ultimately".