my latest computer build. still waiting on the second 7990 to get here and see how it all works out!:)
HD7990 is basically a dual HD7970/R9 280X
and with 3GB of effective VRAM, you cant really game at 4K res
and whats with the 2666MHZ RAM for Intel system?
I dont see the need for fast RAM unless you are running AMD APUs only
No, not necessarily, fast ram can help performance in any system, APU's are just deigned to take advantage of high speed ram. These card don't have a 3gb frame buffer, the R9 280x has a 3gb frame buffer the 7990 has a "6gb" frame buffer. Also keep in mind he has another 7990 on the way so essentially 4 7970's which will be perfect for medium to high graphics quality for 4k gaming.
the HD7990 only have effective 3GB VRAM buffer for each cards
same goes for the R9 295X2 which only has 4GB effective VRAM
and Titan Z only has 6GB of VRAM each
Do you not see the quotes around the "6gb"? I understand that the buffer per card is small but here is 1 card (OP said he's adding a second) at 4k.
The benchmarks are a little old but your still getting above 30 frames on all of those games with ONE CARD now whats gonna happen when he adds the second 7990 other that **** scaling, MORE FPS making this system perfectly capable for 4k gaming.
For the price op is paying for the HD7990. He could have 290x in 4 way CF. Even the 295x2 + 290x for 3 way CF will be more powerful than 4 280x. Not only in scaling but heat output and power draw.
Who said he bought the cards 2 days ago, the way OP is making it seem is that he already had that rig and had 1 7990 and just bought a second and was waiting for it, if he has 1 card then it makes more sense to crossfire them than just buy all new cards. In my personal experience using the 7990, if you have antiquate air flow in your case, even in crossfire, the 7990 does not run too terribly hot.
and if you think he should be concerned about power draw then OP wouldnt be going with 4 or 3 way 290x....
i got them on a really good sale, i think i paid $120 for a 8gb kit. so i really didnt spend more than a lower speed kit. and i am able to game at 4k without any problem as of right now
wow you paid $600 each for those gpus? you could have got a 2 295x2 for $120 more
wow. your right. I hope this is just an upgraded build cause if not. I am crying for OP
when i got them they were 600, and the 295x2 was priced higher. so when i purchased everything it would have been alot more.
Nice Build love the colors. I don't know if its a pink or an orange thought.
i would have gone for two 7990s' if they were still available when i got the money. Your PC must be a beast while running Crysis 3. I wish i could see this in 4K.