ASRock X79 Extreme11 Review: PCIe 3.0 x16/x16/x16/x16 and LSI 8-Way SAS/SATA
by Ian Cutress on September 3, 2012 10:15 AM EST- Posted in
- Motherboards
- ASRock
- X79
- LSI
- PLX
PCIe 3.0 vs. PCIe 2.0
As part of our testing on the X79 Extreme11, we decided to test both PCIe 2.0 and PCIe 3.0 scenarios. Due to the PLX chips onboard giving us a full x16/x16/x16/x16 minus any PLX latency, it should give a rough idea of how these two technologies perform. Our testing incorporated each benchmark at 2560x1440 using full eye candy settings. Here are our results, indicated by percentage difference of PCIe 3.0 over PCIe 2.0:
|
PCIe 3.0 vs. PCIe 2.0 2560x1440, Full AA/AF ASRock X79 Extreme11 x16/x16/x16/x16 |
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| Metro 2033 | Dirt3 | |
| 1x 7970 | -0.3% | +3.8% |
| 2x 7970 | +2.6% | +4.3% |
| 3x 7970 | +1.2% | +4.2% |
| 4x 7970 | +1.9% | +0.5% |
As we can see, there is an improvement for Dirt3 and Metro2033, though the difference is barely noticable. The effect of PCIe 3.0 depends on the different engines using DirectX and OpenGL – each system, and thus each gaming engine, uses the PCIe bus differently. In the games where the PCIe bus is used extensively, then PCIe 3.0 will win out. Otherwise we are at the whim of statistical variation between runs.
Dirt 3
Dirt 3 is a rallying video game and the third in the Dirt series of the Colin McRae Rally series, developed and published by Codemasters. Using the in game benchmark, Dirt 3 is run at 2560x1440 with full graphical settings. Results are reported as the average frame rate across four runs.
Due to the PLX chips, we would expect the X79 Extreme11 to fall behind slightly in single and dual GPU performance, which is confirmed in the benchmark results. In four-way GPU however, the X79 board falls behind some Z77 boards.
Using NVIDIA GPUs, Dirt3 is still agnostic to any CPU or PCIe performance.
Metro2033
Metro2033 is a DX11 benchmark that challenges every system that tries to run it at any high-end settings. Developed by 4A Games and released in March 2010, we use the inbuilt DirectX 11 Frontline benchmark to test the hardware at 2560x1440 with full graphical settings. Results are given as the average frame rate from 4 runs.
Metro 2033 mirrors similar findings from Dirt3 - the ASRock cannot keep pace with the other boards. This must suggest that having dual PLX chips offers a much bigger hit to frame rates than previously thought.
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sor - Tuesday, September 4, 2012 - link
Yeah, server guys know that's standard. These chips are nice for external JBODs for things like ZFS, and for simple redundancy levels. Quite often, however, when they're on the motherboard there's a header and module you can purchase/install to enable RAID5.Snuddi - Monday, September 3, 2012 - link
Please performe some RAID10 benchmarks on this. As I have read acorss forums the RAID10 results are horrible (I have tried this on my own also).With 8x 1TB disk's in RAID10 I get simuar speed as a single HDD.
So it would be great if you could test this in your test system. If numbers are horrible as I belive they will be, then AsRock will have some pressure on fixing that.
blacksun1234 - Tuesday, September 18, 2012 - link
Please enable "Disk Cache Policy" in LSI MegaRAID utility and test again. It improve a lot.yahodahan - Monday, September 3, 2012 - link
Anandtech is a great review site, but there really needs to be a properly useful benchmark here.We're talking about a board that is built for massive GPU compute, so how about an actual GPU compute benchmark? Otherwise, this review has a massive, massive hole in it.
Blender is free. Cycles is free. They have benchmark files ready to open and click "run", it's not a big hassle. And it will push every single GPU to 100%, thrash this board in a real test, and give us (people who intend to actually use the board for real GPU work, as it was intended), the data we need most.
There's so much detailed info in this article, and I appreciate that, but it's honestly missing the most important part, it would be great to see a proper follow-up/etc to fix this.
cjb110 - Tuesday, September 4, 2012 - link
Blender might be free, but time isn't! Even if they ran the test, a single number on its own would be useless...esp to the general reader.It was mentioned in the review that this product is a little out of the norm for their testing.
But it is handled consistent with their other reviews, which makes more sense, than running a bunch of tests with no comparison points.
If you want a specialised review for the boards target market I'm sure they're out there.
But maybe Blender could be included in the standard test suite, could cut down the number of game tests (these don't seem to differ much between boards).
yahodahan - Tuesday, September 4, 2012 - link
Sure, but that's the point: a review like this should take the time to focus directly on what actually matters, and in this case that is GPU compute performance (and RAID, for others).This board is a specialty case, and should be treated as such. Drop in 4 GPU's at x16 each, then 6 at x8, and do a render to see if there is a difference.
Then, test on a board with two "real" (non PLEX) x16 slots, and see if there is a difference vs 2 x16 on this boards "multiplied" channels.
This would give some numbers that are really, truly meaningful. Yes, it would take time, but why was time taken to benchmark it on games/etc, when it's been shown time and again that those numbers simply don't change and mean practically nothing?
What I'm trying to say is, this board is for a niche market- so please, test it for that niche market, not for the general masses that will never, ever use it.
ggathagan - Wednesday, September 5, 2012 - link
There's the very real possibility that Ian doesn't have 4 GPU's to test with.error451 - Wednesday, September 5, 2012 - link
Then whats the point of testing the board if your not going to benchmark its main selling points and features? This is a specialized motherboard that should have had a specialized review. Just running their standard game and video encoding benchmarks is a waste.This issue pops up every time Anandtech does a review of a non gamer/mass market product. They tell you about all the cool features and then run their standard review suite.
MadMan007 - Monday, September 3, 2012 - link
Know what makes this motherboard so great? It goes to 11!gkatz - Monday, September 3, 2012 - link
Can someone explain to me under what circumstances you might need 22 USB ports?