gtx570-memory-bandwidth2 Intel Core i7-3820 testing with a ASRock X79 Extreme11 and 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 . 5652.97 |============== 2 x GTX570 . 11278.17 |============================ 3 x GTX570 . 16940.70 |========================================== 4 x GTX570 . 22571.70 |======================================================== CUDA bandwidthTest 5.0 Memory type: Pageable memory - Memory transfer path: Host to device MB/sec > Higher Is Better 1 x GTX570 . 5943.27 |============== 2 x GTX570 . 11886.17 |============================ 3 x GTX570 . 17813.97 |========================================== 4 x GTX570 . 23739.40 |======================================================== CUDA bandwidthTest 5.0 Memory type: Pageable memory - Memory transfer path: Device to device MB/sec > Higher Is Better 1 x GTX570 . 131160.43 |============== 2 x GTX570 . 262328.07 |=========================== 3 x GTX570 . 393464.13 |========================================= 4 x GTX570 . 524669.90 |======================================================= CUDA bandwidthTest 5.0 Memory type: Non-pageable system memory - Memory transfer path: Device to host MB/sec > Higher Is Better 1 x GTX570 . 6317.60 |============== 2 x GTX570 . 12631.43 |============================ 3 x GTX570 . 18952.07 |========================================== 4 x GTX570 . 25271.47 |======================================================== CUDA bandwidthTest 5.0 Memory type: Non-pageable system memory - Memory transfer path: Host to device MB/sec > Higher Is Better 1 x GTX570 . 6348.90 |============== 2 x GTX570 . 12699.47 |============================ 3 x GTX570 . 19046.00 |========================================== 4 x GTX570 . 25399.73 |======================================================== CUDA bandwidthTest 5.0 Memory type: Non-pageable system memory - Memory transfer path: Device to device MB/sec > Higher Is Better 1 x GTX570 . 131174.50 |============== 2 x GTX570 . 262294.53 |=========================== 3 x GTX570 . 393478.17 |========================================= 4 x GTX570 . 524633.77 |=======================================================