Originally Posted by iMacmatician
Don't they have FP too? Also, most workloads are integer-heavy.
AMD made the point that FP is secondary with these chips. The cores are integer. There is FP hardware, but it's fairly weak.
Intel will have the lead, but there are situations when dual-core Intel CPUs go up against quad-core AMD CPUs, as well as quad-core Intel vs. 6-core AMD.
And we have 4 core Intel up against 4 core AMD, and six core Intel against 6 core AMD. Intel wins every time there, and not by a little.
Are you talking about Bulldozer's module? If so, one extra integer core adds 12.5% or 50% to the die (seen both numbers, can't remember the correct one), and that adds 5% to the entire die. An additional integer core gives 80% extra performance over a module without the integer core.
It's 50%, and it doesn't add 5% to the die. It's more like 20% per core. Intel's hyperthreading adds 5%, thats what you're thinking about.
The extra core does give what AMD CLAIMS is an 80% increase in INTEGER performance per core, as opposed to the known quantity of 30 to 40% improvement per core for hyperthreading. It also uses much more power, and needs more heat dissipation that Intel's chips.
AMD does have problems making large CPUs but that's mitigated by their dual-die approach for servers.
It's very funny, you know, because when Intel first began using the dual die per package, AMD was criticizing them for it.
Intel has the lead in single-threaded performance but that's becoming less important over time.
Thats totally wrong. However many cores are there, per core performance is as important as it ever was.
I think total performance per watt and per $.
Intel's ahead on the P/W spec, and is usually ahead on the P/$ as well. As usual, Intel will drop prices on its chips, putting pressure on AMD.
From the roadmaps I've seen Intel isn't really shifting the boundaries of core counts with Sandy Bridge, except at the high end. Ivy Bridge looks to be where the next large change occurs.
Add more cores.
I'm willing to bet that Sandy Bridge will beat the pants off Bulldozer.