gtx570-memory-bandwidth Intel Core i7-3820 testing with a ASRock X79 Extreme11 and 4 x NVIDIA GeForce GTX 570 HD on CentOS 6.3 (Final) via the Phoronix Test Suite. 1 x GTX570: Processor: Intel Core i7-3820 @ 3.60GHz (4 Cores), Motherboard: ASRock X79 Extreme11, Chipset: Intel Xeon E5/Core, Memory: 8 x 4096 MB DDR3-1333MHz, Disk: 128GB M4-CT128M4SSD2, Graphics: NVIDIA GeForce GTX 570 HD, Audio: Intel C600/X79, Network: Broadcom NetLink BCM57781 Gigabit PCIe OS: CentOS 6.3 (Final), Kernel: 2.6.32-279.el6.x86_64 (x86_64), Compiler: GCC 4.4.6 20120305 + CUDA 5.0, File-System: ext4 2 x GTX570: Processor: Intel Core i7-3820 @ 3.60GHz (4 Cores), Motherboard: ASRock X79 Extreme11, Chipset: Intel Xeon E5/Core, Memory: 8 x 4096 MB DDR3-1333MHz, Disk: 128GB M4-CT128M4SSD2, Graphics: NVIDIA GeForce GTX 570 HD, Audio: Intel C600/X79, Network: Broadcom NetLink BCM57781 Gigabit PCIe OS: CentOS 6.3 (Final), Kernel: 2.6.32-279.el6.x86_64 (x86_64), Compiler: GCC 4.4.6 20120305 + CUDA 5.0, File-System: ext4 3 x GTX570: Processor: Intel Core i7-3820 @ 3.60GHz (4 Cores), Motherboard: ASRock X79 Extreme11, Chipset: Intel Xeon E5/Core, Memory: 8 x 4096 MB DDR3-1333MHz, Disk: 128GB M4-CT128M4SSD2, Graphics: NVIDIA GeForce GTX 570 HD, Audio: Intel C600/X79, Network: Broadcom NetLink BCM57781 Gigabit PCIe OS: CentOS 6.3 (Final), Kernel: 2.6.32-279.el6.x86_64 (x86_64), Compiler: GCC 4.4.6 20120305 + CUDA 5.0, File-System: ext4 4 x GTX570: Processor: Intel Core i7-3820 @ 3.60GHz (4 Cores), Motherboard: ASRock X79 Extreme11, Chipset: Intel Xeon E5/Core, Memory: 8 x 4096 MB DDR3-1333MHz, Disk: 128GB M4-CT128M4SSD2, Graphics: NVIDIA GeForce GTX 570 HD, Audio: Intel C600/X79, Network: Broadcom NetLink BCM57781 Gigabit PCIe OS: CentOS 6.3 (Final), Kernel: 2.6.32-279.el6.x86_64 (x86_64), Compiler: GCC 4.4.6 20120305 + CUDA 5.0, File-System: ext4 CUDA bandwidthTest 5.0 Memory type: Pageable memory - Memory transfer path: Device to host MB/sec > Higher Is Better 1 x GTX570 . 5648.80 |============== 2 x GTX570 . 11154.70 |============================ 3 x GTX570 . 16988.03 |========================================== 4 x GTX570 . 22606.00 |======================================================== CUDA bandwidthTest 5.0 Memory type: Pageable memory - Memory transfer path: Host to device MB/sec > Higher Is Better 1 x GTX570 . 5940.80 |============== 2 x GTX570 . 11886.77 |============================ 3 x GTX570 . 17831.50 |========================================== 4 x GTX570 . 23749.57 |======================================================== CUDA bandwidthTest 5.0 Memory type: Pageable memory - Memory transfer path: Device to device MB/sec > Higher Is Better 1 x GTX570 . 131168.47 |============== 2 x GTX570 . 262267.60 |=========================== 3 x GTX570 . 393474.77 |========================================= 4 x GTX570 . 524728.10 |======================================================= CUDA bandwidthTest 5.0 Memory type: Non-pageable system memory - Memory transfer path: Device to host MB/sec > Higher Is Better 1 x GTX570 . 6317.27 |============== 2 x GTX570 . 12631.97 |============================ 3 x GTX570 . 18952.60 |========================================== 4 x GTX570 . 25267.30 |======================================================== CUDA bandwidthTest 5.0 Memory type: Non-pageable system memory - Memory transfer path: Host to device MB/sec > Higher Is Better 1 x GTX570 . 6350.73 |============== 2 x GTX570 . 12696.27 |============================ 3 x GTX570 . 19051.43 |========================================== 4 x GTX570 . 25393.30 |======================================================== CUDA bandwidthTest 5.0 Memory type: Non-pageable system memory - Memory transfer path: Device to device MB/sec > Higher Is Better 1 x GTX570 . 131157.00 |============== 2 x GTX570 . 262320.30 |============================ 3 x GTX570 . 393469.87 |========================================= 4 x GTX570 . 524609.13 |=======================================================