Haswell/Broadwell have 2-per-clock SIMD FP multiply (on the FMA units), but only 1 per clock SIMD FP add (on a separate vector FP add unit with lower latency). Skylake dropped the separate SIMD FP adder, running add/mul/fma the same at 4c latency, 2-per-clock throughput, for any vector width. Intel. Note that Celeron/Pentium versions of recent microarchitectures don't support AVX or FMA ... The videocard is designed for laptop-computers and based on Generation 7.5 microarchitecture codenamed Haswell GT2. Core clock speed - 350 MHz. Boost clock speed - 1150 MHz. Texture fill rate - 4.6 GTexel / s. Pipelines - 20. Floating-point performance - 46 gflops. Manufacturing process technology - 22 nm. Transistors count - 392 million. Power consumption (TDP) - 20 Watt. Memory bus width ... Haswell’s GPU is a tweaked version of the cores currently deployed in Ivy Bridge. What’s really changing is the shader loadout; Intel will offer Haswell in 10, 20, and 40-shader flavours (GT1, GT2, and GT3). The chip will also be offered in variants that include up to 128MB in on-package RAM, a feature that provides the GPU with a small dedicated pool of memory. Intel isn’t talking much ... 50 gflops vs 46 gflops: Benchmarks: PassMark - G3D Mark: 649 vs 533: PassMark - G2D Mark: 305 vs 261: Geekbench - OpenCL: 2992 vs 2338: CompuBench 1.5 Desktop - Face Detection (mPixels/s) 8.844 vs 7.844: CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 171.17 vs 154.696: CompuBench 1.5 Desktop - T-Rex (Frames/s) 1.115 vs 0.958 GFLOPS = number of cores × core frequency (GHz) × number of operations per clock cycle For the equation, you use physical cores, not logical (threads). Also, the number of operations a processor core can complete per second varies depending on the architecture of the processor in question, and whether you're after single or double precision figures.
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