ok, it's an enlightening discussion on terminology. Back to my main point - GPU vs. Itanic. NVIDIA GPU Tesla have 512 SIMD cores organized into 16 SM ("streami

ok, it's an enlightening discussion on terminology. Back to my main point - GPU vs. Itanic. NVIDIA GPU Tesla have 512 SIMD cores organized into 16 SM ("streaming multiprocessors") with 2 independent instructions (from 2 different threads) issued per SM per clock (each instruction goes to its' half of the SM, ie. to 16 cores wide SIMD group): http://www.nvidia.com/content/PDF/fermi_white_papers/NVIDIA_Fermi_Compute_Architecture_Whitepaper.pdf http://www.nvidia.com/content/PDF/fermi_white_papers/NVIDIA_... That gives us [16 SM x 2 instructions x [1-16 cores]] - anywhere between 32 to 512 ops / clock - 1000 GFlops in the best case. The Itanic - 8 cores x 6 independent instructions - something like 200GFlops.