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Nvidia and AMD Hug It Out, SLI Coming To AMD Mobos
MojoKid writes "In a rather surprising turn of events, NVIDIA has just gone on record that, starting with AMD's 990 series chipset, you'll be able to run multiple NVIDIA graphics cards in SLI on AMD-based motherboards, a feature previously only available on Intel or NVIDIA-based motherboards. Nvidia didn't go into many specifics about the license, such as how long it's good for, but did say the license covers 'upcoming motherboards featuring AMD's 990FX, 990X, and 970 chipsets.'"
Since all the exclusion did was hurt nVidia in sales for people who stay loyal to AMD and refuse to go intel just for SLi. Allowing SLi on AMD boards will boost nVidias sales a bit.
Having built my last two gaming rigs to utilize SLI, my opinion is that it's more trouble than it's worth.
It seems like a great idea: buy the graphics card at the sweet spot in the price / power curve, peg it for all its worth until two years later when games start to push it to its limit. Then buy a second card, which is now very affordable, throw it in SLI and bump your rig back up to a top end performer.
The reality is less perfect. Want to go dual monitor? Expect to buy a third graphics card to run that second display. Apparently this has been fixed in Vista / Windows 7, but I'm still using XP and it's a massive pain. I'm relegated to using a single monitor in Windows, which is basically fine since I only use it to game, and booting back into Linux for two-display goodness.
Rare graphics bugs that only affect SLI users are common. I recently bought The Witcher on Steam for $5, this game is a few years old and has been updated many times. However if you're running SLI, expect to be able to see ALL LIGHT SOURCES, ALL THE TIME, THROUGH EVERY SURFACE. Only affects SLI users, so apparently it's a "will not fix". The workaround doesn't work.
When Borderlands first came out, crashed regularly for about the first two months. The culprit? A bug that only affected SLI users.
Then there's the heat issue! Having two graphics cards going at full tear will heat up your case extremely quickly. Expect to shell out for an after-market cooling solution unless you want your cards to idle at 80C and easily hit 95C during operation. The lifetime of your cards will be drastically shortened.
This is my experience with SLI anyway. I'm a hardcore gamer who has always built his own rigs, and this is the last machine I will build with SLI, end of story.
Hard to say(until bulldozer drops) whether NVIDIA thinks that they are really good, or good enough. Since NVIDIA no longer has an intel chipset business, tying SLI to Intel platforms no longer serves to move more product; but to restrict the size of their potential market(since anybody who wants the, often quite aggressive, price/performance of an AMD part won't be buying more than one NVIDIA card, at most).
So long as they are confident that AMD's CPUs will be good enough not to bottleneck SLI configurations, trying to sell multiple cards to people who purchase AMD CPUs seems only reasonable. If, of course, they think that the CPUs will be even better than good enough, the approach is even more reasonable, so it doesn't tell us too much about which it is.
"4 core Intel CPUs outperform 6 core AMD CPUs in all the multi-threaded tasks I've looked at, rather badly in some cases."
Do raw x86 without any specialized instructions (minus multi-core stuff) and you'll find the opposite happening, AMD wins hands-down.
That's why AMD powers our food production systems. We don't need the specialized instructions like SSE3/4/4a/etc. and AMD's raw x86 performance wins.
Intel NEEDS those specialized instructions added on to keep pace.
Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.