Gaming Performance

As I mentioned earlier, under OS X games have to specifically be written to use both GPUs in the new Mac Pro. Under Windows however it's just a matter of enabling CrossFire X. I ran the new Mac Pro with dual FirePro D700s through a few of Ryan's 2014 GPU test suite games. The key comparison here is AMD's Radeon R9 280X CF. I've put all of the relevent information about the differences between the GPUs in the table below:

Mac Pro (Late 2013) GPU Comparison
  AMD Radeon R9 280X AMD FirePro D700
SPs 2048 2048
GPU Clock (base) 850MHz 650MHz
GPU Clock (boost) 1000MHz 850MHz
Single Precision GFLOPS 4096 GFLOPS 3481 GFLOPS
Texture Units 128 128
ROPs 32 32
Transistor Count 4.3 Billion 4.3 Billion
Memory Interface 384-bit GDDR5 384-bit GDDR5
Memory Datarate 6000MHz 5480MHz
Peak GPU Memory Bandwidth 288 GB/s 264 GB/s
GPU Memory 3GB 6GB

Depending on thermal conditions the 280X can be as little as 17% faster than the D700 or as much as 30% faster, assuming it's not memory bandwidth limited. In the case of a memory bandwidth limited scenario the gap can shrink to 9%.

All of the results below are using the latest Radeon WHQL drivers at the time of publication (13-12_win7_win8_64_dd_ccc_whql.exe) running 64-bit Windows 8.1. Keep in mind that the comparison cards are all run on our 2014 GPU testbed, which is a 6-core Ivy Bridge E (i7-4960X) running at 4.2GHz. In other words, the other cards will have a definite CPU performance advantage (20 - 30% depending on the number of active cores).

You'll notice that I didn't run anything at 4K for these tests. Remember CrossFire at 4K is still broken on everything but the latest GCN 1.1 hardware from AMD.

Battlefield 3 - 2560x1440 - Ultra Quality + 4x MSAA

Battlefield 3 starts out telling the story I expected to see. A pair of 280Xes ends up being 16% faster than the dual FirePro D700 setup in the Mac Pro. You really start to get an idea of where the Mac Pro's high-end GPU configuration really lands.

Bioshock Infinite - 2560x1440 - Ultra Quality + DDoF

Bioshock ends up at the extreme end of what we'd expect to see between the 280X and D700. I tossed in a score from Bioshock under OS X, which obviously doesn't have CF working and ends up at less than half of the performance of the D700. If you're going to do any heavy 3D gaming, you'll want to do it under Windows still.

Company of Heroes 2 - 2560x1440 - Maximum Quality + Med. AA

Not all games will scale well across multiple GPUs: Company of Heroes 2 is one of them. There's no performance uplift from having two 280Xes and thus the D700 performs like a slower single GPU R9 280X.

Company of Heroes 2 - Min. Frame Rate - 2560x1440 - Maximum Quality + Med. AA

Metro: Last Light - 2560x1440 - High Quality

Metro is the one outlier in our test suite. Although CrossFire is clearly working under Windows, under Metro the D700 behaves as if it wasn't. I'm not sure what's going on here, but this does serve as a reminder that relying on multi-GPU setups to increase performance does come with a handful of these weird cases - particularly if you're using non-standard GPU configurations.

GPU Choices 4K Support & The 4K Experience
POST A COMMENT

268 Comments

View All Comments

  • sully213 - Tuesday, December 31, 2013 - link

    Hi TWiT Live viewers! Happy New Year's! Reply
  • Bone Doc - Wednesday, January 01, 2014 - link

    Finally, the authoritative review is here. Happy New Year Anand. Excellent work as always. Reply
  • malcolmcraft - Thursday, October 09, 2014 - link

    It's pretty. As for laptops I'd definitly recommend Mac. But when you want a really powerfull workstation to do actuall work at, my first recommendation would not be a Mac. /Matt from http://www.consumertop.com/best-desktop-guide/ Reply
  • newrigel - Wednesday, March 01, 2017 - link

    man shut up... your PC don't have thunderbolt and and PCIe based storage as a factory build. By the time your done trying to configure a PC with Mac specifications it's almost more money than just buying a Mac Pro Plus you have 10 fans in a PC and water cooling that can leak... PCs suck! Reply
  • kasthuri - Tuesday, December 31, 2013 - link

    great review! hoping that new MBP-Haswell next? happy new year to all! Reply
  • SignalPST - Tuesday, December 31, 2013 - link

    yea, when's the Haswell Macbook Pro review coming out? Reply
  • newrigel - Wednesday, March 01, 2017 - link

    I thought this is about the Mac Pro why the hell you guys coming hijack of thread? Reply
  • vickyksoni - Monday, March 20, 2017 - link

    mac pro is great when i had to purchase it i used https://smarttopten.com/ to check their reviews and similar products Reply
  • japtor - Tuesday, December 31, 2013 - link

    Little correction for the opening, the MacBook name didn't exist until 2006 I think, they were iBooks and PowerBooks back in 2004. Reply
  • Ryan Smith - Tuesday, December 31, 2013 - link

    Whoops. Good catch. Thanks. Reply

Log in

Don't have an account? Sign up now