samsung 850 256gb Intel Core i5-4670 testing with a ASUS B85M-E and Intel HD 4600 on Arch Linux via the Phoronix Test Suite. 4k: Processor: Intel Core i5-4670 @ 3.80GHz (4 Cores), Motherboard: ASUS B85M-E, Chipset: Intel 4th Gen Core DRAM, Memory: 8192MB, Disk: 256GB Samsung SSD 850 + 128GB Samsung SSD 850, Graphics: Intel HD 4600 (1200MHz), Audio: Intel Xeon E3-1200 v3/4th, Monitor: DELL S2240M, Network: Realtek RTL8111/8168/8411 OS: Arch Linux, Kernel: 4.6.4-1-ARCH (x86_64), Desktop: GNOME Shell 3.20.3, Display Driver: intel 2.99.917, OpenGL: 3.3 Mesa 12.0.1, Compiler: GCC 6.1.1 20160707, File-System: ext4, Screen Resolution: 1920x1080 Flexible IO Tester 2.1.13 Type: Random Read - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory - Result: MB/s MB/s > Higher Is Better 4k . 40.25 |=================================================================== Flexible IO Tester 2.1.13 Type: Random Write - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory - Result: MB/s MB/s > Higher Is Better 4k . 129.43 |================================================================== Flexible IO Tester 2.1.13 Type: Sequential Read - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory - Result: MB/s MB/s > Higher Is Better 4k . 149.69 |================================================================== Flexible IO Tester 2.1.13 Type: Sequential Write - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory - Result: MB/s MB/s > Higher Is Better 4k . 129.26 |==================================================================