Hello one and all. I've recently just upgraded my PC. I currently am running an AMD 64 3700+ on an Asus A8N-SLI deluxe board with 1024mb of PC3200 RAM and I also have 2x Gigabyte 7800 GTX graphics cards. Now, I've noticed that some games are still not as fast as I would have thought using two cards on SLi (Doom 3 and Half Life 2 and also the FEAR demo). What could be the reasons for this? I would have thought that 2 7800's would have easily run all the current games at max detail, max AA and Vsync with no slowdown at all but this is not the case. I was wondering if it's maybe the CPU causing a bottleneck? I'm not the most technical minded so forgive mne if it's a dumb question.
Hi, I certainly wouldn't have thought your CPU was a problem. Are you saying that you can't run with all the things mentioned, ie full detail, Max AA and Vsync? Or is the improvemnt just not what you thought? Unfortunately, I and many others see SLI as a bit of a myth, certainly some games will be better, but on others it will be barely noticeable.
Yeah I can run with everything on (16x AA, 16x AF and Vsync) but I would have thought (going by the performance of one 7800) that it would fly through with silly FPS rates. But I guess if you have 2 GPU's it's harder work on the CPU. DOn't get me wrong it's very impressive but not as much a difference from a 6800 to the 7800. Oh well. Which bring me to my next question......which CPU would be better....FX-57 or a Dual Core 4600+?
This one will be worth keeping an eye on when it's released http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=2493 Might help having the full bandwith on each card....or maybe not..time will tell i guess. As for the CPUs, I personally would go for the FX, that's only becasue I don't use any programs that would utilise the dual cores. If you have software that supports dual-cpu then the X2 chips will rock, but for standard performance, or games then I think the FX would kick the X2 Ass!!! Not checked any benchmarks yet though.
