Intel Xeon E5-4640 512GB - Parallel Memory Bandwidth Measurement Results

CPU: 4 × Intel Xeon E5-4640 (Sandy Bridge), 2400 MHz (cpu-world) 4 × (8 cores, 8 HT cores), 64 bit, AVX instructions

Memory: 2 × 8 × 32 KiB L1 D/I cache 2 × 8 × 256 KiB L2 cache 2 × 16 MiB L3 shared cache 512 GiB, 4 × 4ch DDR3-1600 RAM

Dates: CPU released 2012-03-14, tested 2013-05-30 gnuplot PDF or raw stats

Charts

Sequential: BandwidthLatencyLatency excluding Permutation

Parallel: ScanWrite256PtrSimpleLoopScanWrite256PtrUnrollLoopScanRead256PtrSimpleLoopScanRead256PtrUnrollLoopScanWrite128PtrSimpleLoopScanWrite128PtrUnrollLoopScanRead128PtrSimpleLoopScanRead128PtrUnrollLoopScanWrite64PtrSimpleLoopScanWrite64PtrUnrollLoopScanRead64PtrSimpleLoopScanRead64PtrUnrollLoopScanWrite64IndexSimpleLoopScanWrite64IndexUnrollLoopScanRead64IndexSimpleLoopScanRead64IndexUnrollLoopScanWrite32PtrSimpleLoopScanWrite32PtrUnrollLoopPermRead64SimpleLoopPermRead64UnrollLoop BandwidthAccess TimeSpeedup