16 Cores at a Resonable Price: Xeon E5-2675v3 CPU Gaming Test Bench - Overclock.net - An Overclocking Community
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16 Cores at a Resonable Price: Xeon E5-2675v3 CPU Gaming Test Bench

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post #1 of 14 (permalink) Old 02-08-2016, 10:24 PM - Thread Starter
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Intro:
This thread is to test whether lower clocked (1.8G base clock) Xeons can run modern games or not.


About this Xeon E5-2675v3:
This is an OEM chip made for big tech companies, such as HP and Oracle for their cloud servers and client workstations, however, this is also available on eBay for a reasonable price, even cheaper than the hexacore 5930K actually.
It features 16 cores/32 threads
It has a base clock of 1.8 GHZ and turbo clock up to 2.3 GHZ.
L2 cache: 4MB
L3 cache 40MB
TDP:110W

This chip is compatible with most X99 motherboards and LGA-2011v3 server/work station boards.
It works with my ASUS X99-Deluxe and Asrock X99 Professional.

Testing Platform:
E5-2675v3
E5-1660v3( i7-5960X equivalent and better binning) at default clock 3.0/3.5 Turbo. Retail for $1080
ASUS X99-Deluxe U3.1
Powercolor R9 290 4GB x 2 (Games are tested in single card since I RMA one of them)
ADATA 4 x 8G DDR4 2400
Samsung 950Pro 512GB

Resolution: 4096x2160 or 3840x2160, depends on game.
OS: Windows 10 ltsb x64
CPU: disabled C-States, EIST, and ASUS EPU.

1. Theoretical Performance:
Maxxon Cinebench R15

The forum squeezed the image a bit.
1.8GHz E5-2675v3:1579cb
3.0Ghz E5-1660v3:1280cb
4.4GHz i7-4770K:822cb

2.Battlefield 4
4096x2160, High, Vertical sync. Same scene in game (Zavod 311)
It seems that this game is optimized up to 8 threads. (Please correct me if I am wrong)

MATLAB, The MathWorks, Inc.
We can see that higher clocked E5-1660V3 performs a bit better than lower clocked E5-2675v3 by 10%, but 2675 will not bottleneck the game performance by any mean. Higher clocked 4.8G 4770K/4790K/6700K will perform even better for this game.

3. Star Wars Battlefront
4096x2160, Ultra, Vertical sync. Same scene in game.
It seems that this game is optimized up to 12 threads. (Please correct me if I am wrong)

MATLAB, The MathWorks, Inc.
The weird thing is that the lower clocked 2675 performs even better than the higher-clocked 1660. I tried 4 times, and the results are similar.

4. Assassin's Creed: Unity
3840x2160 High, Vertical sync. Same scene in game (The last quest)

It seems that this game can use all 32 threads!!! (Please correct me if I am wrong)
MATLAB, The MathWorks, Inc.
The FPS spikes are caused by insufficient VRAM I suppose, but we can tell basically no difference in terms of average FPS.

More games and software testings are coming soon.
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post #2 of 14 (permalink) Old 02-08-2016, 10:45 PM
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post #3 of 14 (permalink) Old 02-09-2016, 03:11 PM
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Interesting benches but it looks like you are quite badly gpu limited at those resolutions (judging by the fairly low fps)

It would be interesting to see some lower resolution tests or some more once your other gpu is back.

It's interesting to see that assassins creed won't load any core to 100%
Where as battlefield and battlefront seem to noticeably load one core over the rest.

Any way to overclock this 2675v3?

Thanks for posting, very interesting.
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post #4 of 14 (permalink) Old 02-09-2016, 03:54 PM
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Maxxon Cinebench R15 Single Thread score please ?

Also, CPUz bench scores to some comparison...






Nice little monster you got there !

Grats great RIG !

thumb.gif

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post #5 of 14 (permalink) Old 02-09-2016, 03:57 PM
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Quote:
Originally Posted by Holst View Post

Interesting benches but it looks like you are quite badly gpu limited at those resolutions (judging by the fairly low fps)

It would be interesting to see some lower resolution tests or some more once your other gpu is back.

It's interesting to see that assassins creed won't load any core to 100%
Where as battlefield and battlefront seem to noticeably load one core over the rest.

Any way to overclock this 2675v3?

Thanks for posting, very interesting.

Some motherboards can lock the whole CPU at the max single-core turbo speeds, but that's about it.

Sent from my Sig Rig
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post #6 of 14 (permalink) Old 02-09-2016, 04:40 PM - Thread Starter
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Quote:
Originally Posted by Holst View Post

Interesting benches but it looks like you are quite badly gpu limited at those resolutions (judging by the fairly low fps)

It would be interesting to see some lower resolution tests or some more once your other gpu is back.

It's interesting to see that assassins creed won't load any core to 100%
Where as battlefield and battlefront seem to noticeably load one core over the rest.

Any way to overclock this 2675v3?

Thanks for posting, very interesting.
You may be able to overclock the BCLK up to 105mhz.
Xeon E5v3s are all multiplier locked unfortunately.
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post #7 of 14 (permalink) Old 02-11-2016, 06:48 PM - Thread Starter
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Quote:
Originally Posted by jclafi View Post

Maxxon Cinebench R15 Single Thread score please ?

Also, CPUz bench scores to some comparison...






Nice little monster you got there !

Grats great RIG !

thumb.gif
I will upload one next week.
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post #8 of 14 (permalink) Old 02-12-2016, 04:58 AM
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This test sounds purely academic:

1. Current games do not take any advantage from the number of cores due to a fundamental limitation of DX11. This will change with the DX12 but it will depend on the optimization, current view is that such optimization will be done for max 8 cores if any.

2. Single socket Xeons overclock like a charm and so are much better for any gaming. I have Xeon E5-1680v3 running at 4.5 GHz.

3. There is very little single software which can make efficient use of more than 8 cores.
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post #9 of 14 (permalink) Old 02-12-2016, 08:09 AM - Thread Starter
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Quote:
Originally Posted by wirk View Post

This test sounds purely academic:

1. Current games do not take any advantage from the number of cores due to a fundamental limitation of DX11. This will change with the DX12 but it will depend on the optimization, current view is that such optimization will be done for max 8 cores if any.

2. Single socket Xeons overclock like a charm and so are much better for any gaming. I have Xeon E5-1680v3 running at 4.5 GHz.

3. There is very little single software which can make efficient use of more than 8 cores.
I merely test it out of my curiousity, since I have plenty of LGA-2011v3 processors. I do want to ask you a question: can you over clock your RAM clock when paired with 1680v3?
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post #10 of 14 (permalink) Old 02-12-2016, 08:23 AM
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