Originally Posted by Kinaesthetic
Here is why it is dumb:
- SLI and Xfire aren't perfect. You WILL have times where you will receive stuttering in your games because that is just the way the technology works. I've experienced it in the past with GTX 670 SLI. Didn't like it all that much (YMMV on how perceptible it is to you).
- Your MAXIMUM framerates will be the part that gets the most increase in SLI/Xfire. Your minimums however, won't gain nearly as much. And your minimums is what you are going to be looking at for perceived viewing FPS. Combine that with stutter that will inevitably happen, and you are in for a world of hurt.
- Almost EVERY modern game (and a fair few older games) WILL use more than 1GB of VRAM. That means, your GPU will not have enough memory to buffer textures being shown, AA being used, etc. When that happens, your card will run into a slight stutter. Combine that with the inevitable stutter of SLI/Xfire, and you are in even more world of hurt.
- A 128-Bit bus is incapable of using 2GB of VRAM. Same thing with the pitiful 4GB GTX 670s. Read Point #3 with this one.
- There will ALWAYS be games where there isn't a solid SLI/Xfire profile. Guess what happens then? You are left with a miserably pitiful performing card to be used since that profile is incapable of using the second card.
- VERY few games have 100% Xfire/SLI scaling. Some have 20% scaling, some have 40%, some 80%, very, very few have 100%. So what are you left with? A very low end card combined with not much help with your second low end card. See point #5.
Its just a stupid decision. Flat out stupid.
Not to mention, you yourself could've invested $80 into your GPUs instead of getting the FX-8350 and a high end motherboard. Which would've easily allowed you to get a mid-high end single GPU that wouldn't be limited by VRAM, and would've sacrificed almost no performance in regards to your CPU.
My god you must have missed the point I made so here it is again NO ISSUES
. You're welcome.
Originally Posted by jason387
I don't know where you get your information from but if your doing it in an attempt to praise your gpu it's not right as we are all helping the OP choose his card. A Radeon 7950 will smoke your dual gpu's and leave it in the dust any day. Your bus width and vram limited. That's the truth. The card I presently own is roughly 65% faster than 1 overclocked 7770 and I paid 150$ for it. It's pointless to crossfire 2 low end card or mid range cards. If you still think your 2 7770's are faster please do post a few benchmarks and we can all be enlightened.
Advice to the OP, get the 7950 if you find it within the 250$-27-$ region. Overclocking that card would reach 7979 performance.
Actually I felt the OP was asking a generic question so I gave an answer based on my experience. Most of you are trying to be budget finders and quote prices now/yesterday and the like. That is their job. And as far as stock prices 2 7770s will out perform the 7870 and those 2 cards fit the pricing profile. The fact anyone got a 79xx series or 760 cheap for some random deal does not change the basis of my opinion. Now I am not saying they SHOULD buy 2 7770. If I had a choice and the original reason I bought the 7770 was, I wanted a 7970 but being I am getting Married in 2 months and was buying/now have a house, the 7970 was gonna have to wait. My birthday being just a short while back, I got another 7770 and as I stated it was worth it and a good avenue. Not the least to mention since price keeps making it in, you also get 2 sets of game coupons: sell the other cards for even cheaper purchase.OP if you can manage the money always get the best you can afford. If now is when you want it a 7970 is perfect/7950 will do as well for less. Even Nvidias 760 would do well. CF/SLI cheaper is an avenue worthy of thought despite the naysayers in here.