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MSI GTX460 Hawk SLI Question - Page 2

post #11 of 23
Quote:
Originally Posted by brettjv View Post
Dunno who told you that, but the vram of both cards in a multi-GPU configuration is totally used.

However, the effective memory capacity doesn't go up due to the fact SLI/xfire works in a memory-mirroring type of scenario, much like RAID-1 does ... are you familiar with that?

Basically the amount of data that needs to be stored is doubled along w/the amount of memory doubling, so it's a wash AFA the effective capacity goes.

Also, it works the same with any multi-gpu setup (including on a dual-gpu card like a 6990 ... the effective vram capacity is not 4gb, it's 2 x 2GB ... which is different).
It's 2GB that your get, people need to understand that. I mean so many people I see all the time say "3GB of VRAM" or "4GB of VRAM WILL HELP SO MUCH!" It won't, you are only getting 1.5/2GB.
    
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post #12 of 23
Quote:
Originally Posted by brettjv View Post
Dunno who told you that, but the vram of both cards in a multi-GPU configuration is totally used.

However, the effective memory capacity doesn't go up due to the fact SLI/xfire works in a memory-mirroring type of scenario, much like RAID-1 does ... are you familiar with that?
You're right, but... you're basically arguing semantics here. OP's just stating that memory in multi gpu setups isn't additive.
post #13 of 23
Quote:
Originally Posted by Anthraxinsoup View Post
More than enough, at 700MHz alone(which is slow for a 460 and yours is faster at stock) the 460s will beat a single 580. Have fun gaming .
Two 460s in SLi will at most equal to a single 580, they will not beat it.
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post #14 of 23
Quote:
Originally Posted by wongwarren View Post
Two 460s in SLi will at most equal to a single 580, they will not beat it.
You are so very wrong, so so very wrong. At 700MHz two 460s beat a 580 by abit, at 900MHz they will destroy it. EVGA sells the GTX4602win which beats the 580 and is at 700MHz.
    
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post #15 of 23
Quote:
Originally Posted by Anthraxinsoup View Post
Yeah, but you shouldn't need more than 1gb at 1080 or 1200 even. But a 560 is only about 10% faster than a 460 and isn't worth it.
http://www.anandtech.com/bench/Product/313?vs=330

its more than 10% faster, and typical 560 overclocks better than a 460 widening the gap even further.

Yes, Anthrax, I know that your 460 OC'd to 1ghz on air, but that is NOT the norm. It is MUCH closer to the norm on 560's considering the OC'd version come at 950mhz vs 780mhz. 560's are really nice.

Also, Antrax, if you are fully texture modding Oblivion you aren't maxing your 1GB vram? Interesting...

@ OP - In general you should be fine. But if you are into games with texture mods and maxing out all the eye candy and AA, If I were you I'd sell my 460 hawk and buy a non-reference 570 like the ASUS or TFIII. Instead of dumping another $170 on a second 460 HAWK... The 460's just aren't cheap enough yet to make it that best-buy budget upgrade for SLI. IMO...
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post #16 of 23
Quote:
Originally Posted by Anthraxinsoup View Post
You are so very wrong, so so very wrong. At 700MHz two 460s beat a 580 by abit, at 900MHz they will destroy it. EVGA sells the GTX4602win which beats the 580 and is at 700MHz.
Again depends on the game, depends on the overclock and depends on the vram usage, depends depends depends...

http://www.anandtech.com/bench/Product/314?vs=305

Not everyone with 460's can get 900mhz either. My 460 Hawk didnt OC well, couldn't crack 850... 460 Cyclone I had hit 900mhz, but only 850mhz stable in SLI.

Trying to convince someone to get 460's on the basis of guaranteed epic overclocks is bad form imo. And no where in this equation do you even refer to the fact that the 580 can overclock too....
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post #17 of 23
I have recently switched from 460's to a 580 and if anything I have seen a small performance decrease in some games. I know it goes against benchmarks but I found a large increase in Civ 5's minimum frame rates.

Unless you plan on going to a higher resolution or a surround set up you should be fine with your 460's now. If you alreayd have one you can get the same(ish) performance of a $490-515 card for an extra $150 (or less). I say go SLI if you won't be changing monitors.
post #18 of 23
Quote:
Originally Posted by Anthraxinsoup View Post
You are so very wrong, so so very wrong. At 700MHz two 460s beat a 580 by abit, at 900MHz they will destroy it. EVGA sells the GTX4602win which beats the 580 and is at 700MHz.
It really comes down to the game.
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post #19 of 23
Quote:
Originally Posted by RomeSC View Post
http://www.anandtech.com/bench/Product/313?vs=330

its more than 10% faster, and typical 560 overclocks better than a 460 widening the gap even further.

Yes, Anthrax, I know that your 460 OC'd to 1ghz on air, but that is NOT the norm. It is MUCH closer to the norm on 560's considering the OC'd version come at 950mhz vs 780mhz. 560's are really nice.

Also, Antrax, if you are fully texture modding Oblivion you aren't maxing your 1GB vram? Interesting...

@ OP - In general you should be fine. But if you are into games with texture mods and maxing out all the eye candy and AA, If I were you I'd sell my 460 hawk and buy a non-reference 570 like the ASUS or TFIII. Instead of dumping another $170 on a second 460 HAWK... The 460's just aren't cheap enough yet to make it that best-buy budget upgrade for SLI. IMO...
Both Oblivion and Morrowind at 1080p.
    
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post #20 of 23
Thread Starter 
Well i play FPS mainly and have a 22" LCD but will be going to 24".
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