I recently upgraded my cpu to a i7 4970k and now I'm thinking about adding an addition msi r9 270x in crossfire.. my first question is, will I see a significant boost in performance or shold i just run a single higher end gpu?. My second is will two 2gb cards equal a total of 4gb? the last is will my 750 corsair psu be able to handle running crossfire?
worth it to run r9 270x crossfire
- Thread starter chacha7
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- Dec 2, 2009
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Its always better to run a single better card but since you already have one 270x...
2gb + 2gb = 2gb SLI'd gpu.
750w corsair should be able to handle that load fine without any overclocks, which exact PSU do you have?
2gb + 2gb = 2gb SLI'd gpu.
750w corsair should be able to handle that load fine without any overclocks, which exact PSU do you have?
BadBoyGreek
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- May 15, 2014
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Having the two cards in Crossfire won't actually double the total memory, it just allows games to distribute the load in parallel across the two cards. It's almost effectively like having 4 GB, only that the game is splitting the load across 2 cards. Think of it like a multi-core CPU - 2 x 3 GHz cores doesn't actually equal 6 GHz; it just means that tasks can be split across cores to get more work done than a single core can.
That being said, having a single, more powerful GPU is always preferred since games aren't always best optimized for multi-GPU performance, but dropping a second GPU in is a cost effective way to increase your performance.
That being said, having a single, more powerful GPU is always preferred since games aren't always best optimized for multi-GPU performance, but dropping a second GPU in is a cost effective way to increase your performance.
temp_addict
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Have two 270x's running right now, i5 4.2 ghz / 8 gb ram / 750w psu. Cards clock at 1080 core 1400 memory.
I see the performance increase, although it is hit or miss with some games. I do not see any stuttering, the crossfire seems to work great when the game supports it.
Bioshock Infinite is maxed out completely, 60 FPS.
Hitman Absolution is nearly maxed, 60 fps, but I would probably play it tuned down.
Sleeping Dogs, about the same as Hitman.
Borderlands PS, maxed all, 60 fps.
Does not work with CoD AW for me atm, performance loss.
Shadows of Mordor, ive had some issues in game, but the benchmark runs 60 fps with more options enabled versus the single card.
I see the performance increase, although it is hit or miss with some games. I do not see any stuttering, the crossfire seems to work great when the game supports it.
Bioshock Infinite is maxed out completely, 60 FPS.
Hitman Absolution is nearly maxed, 60 fps, but I would probably play it tuned down.
Sleeping Dogs, about the same as Hitman.
Borderlands PS, maxed all, 60 fps.
Does not work with CoD AW for me atm, performance loss.
Shadows of Mordor, ive had some issues in game, but the benchmark runs 60 fps with more options enabled versus the single card.
BadBoyGreek
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Make sure you're running the latest Catalyst driver and see if there's a profile available for CoD. It may fix the issue, it may not. That's the drawback of multi-card setups - when it works, it works fantastic, and when it doesn't... well, it doesn't
temp_addict
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BadBoyGreek :
Make sure you're running the latest Catalyst driver and see if there's a profile available for CoD. It may fix the issue, it may not. That's the drawback of multi-card setups - when it works, it works fantastic, and when it doesn't... well, it doesn't
I have latest beta drivers i believe, i can check for update. I didn't see a CoD profile, but I did try some different combinations of settings in CCC and in game. It basically isn't worth the trouble, if they fix it great if not, I can run on the single card and still enjoy it. I do know that if CS was fully supported I would have a much better experience.
edit i found a profile i will test it out for cod
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