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XFX Radeon HD 7850 not performing as expected


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#1 WaltC

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Posted 28 December 2015 - 07:03 PM

I have a Dell Precision T5400 with 2 Xeon E5410 CPUs, 12 GB of RAM running Windows 7 64-bit. It has an XFX Radeon HD 7850 2GB video card. I'm not into gaming or benchmarking but out of curiosity I ran Cinebench R12 just to see. It ran at about 47 FPS. I noticed in the list that the HD 5770 runs at 57 FPS. According to Passmark the 5770 benchmarks at about 1700 but the 7850 benchmarks at about 3800. The computer has PCI Express 2.0 slots and the card is 3.0 but I've read that  that shouldn't make a huge difference. What might be causing this? Speccy text file attached. Thanks.

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#2 WaltC

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Posted 28 December 2015 - 07:21 PM

I just ran it again and monitored with Afterburner. GPU usage was only in the 40% range.



#3 the_patriot11

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Posted 28 December 2015 - 07:27 PM

Keep in mind cinebench also runs CPU tests, so if the other person has a stronger CPU the CPU portion is going to rate higher. Also keep in mind, that even though the graphics card does a bulk of the graphics processing, the CPU(s) do still have a hand in it so stronger CPUs will still give you a faster frame rate.

Also, I'm not totally familiar with cinebench, I may have to play with it, but it may not have been designed to work on a dual processor system, as those are mainly designed for servers and the like, so it may not be fully utilizing your system.

All just possibilities. May not hurt to download the free version of 3Dmark and see how it handles that.

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#4 WaltC

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Posted 28 December 2015 - 09:05 PM

That's a good point, I didn't think about it not supporting multiple processors. I re-ran it and monitored the task manager performance tab. One core ran at about 70%, the others a lot less but usage would jump around from core to core. I'll download 3Dmark and see what it says. Thanks for the reply.






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