I have done a little informal testing with the new i7 and i5 processor running the Linpack benchmark and a NAMD MD simulation. Mixed results!
Compute Performance: Ivy Bridge-E vs. Haswell
How does the Ivy Bridge-E Core i7-4960X (Extreme edition) do against the Haswell Core i7-4770 running the Linpack benchmark? The Ivy Bridge-E 4960X is a great processor — 6 cores, 4GHz max turbo clock, 4 memory channels, 40 PCIe lanes, big price tag … However, the humble Haswell 4770 has it’s AVX2 and FMA3 secret weapons which are really effective on linear/matrix algebra type of numerical computing problems. …
Haswell Floating Point Performance
Some quick benchmarking using the Intel MKL double precision Linpack benchmark shows Haswell to have the potential to be a stellar performer for floating point heavy code.