Hyper-Threading Performance

Intel uses Hyper-Threading (HT) as a feature for market segmentation: The desktop Core i5 processors differ from the Core i7 mainly by whether HT has been disabled, and Intel charges a significant price premium for the Core i7. Does the performance improvement of HT justify its cost? I test the performance of HT using a selection of cluster-type workloads. . . . → Read More: Hyper-Threading Performance

Core 2, Nehalem, FPGA CAD

See also: Ivy Bridge Benchmarks

Here are some FPGA CAD benchmarks across a few relatively-modern machines. The original motivation was to figure out why VPR ran much slower on a Core 2 Xeon 5160 system than a desktop-class Core 2 Quad Q9550. A secondary goal is to measure the Core i7-980X @ 4215 MHz. I . . . → Read More: Core 2, Nehalem, FPGA CAD