AMD AM3+ Test System Specs - AMD FX-8150 (3.60GHz) - x2 4GB G.Skill DDR3 PC3-14900 (CAS 8-9-8-24) - Asrock 990FX Extreme4 (AMD 990FX) - OCZ ZX Series 1250w - Crucial m4 256GB (SATA 6Gb/s) - Gigabyte GeForce GTX 580 SOC (1536MB) Software - Microsoft Windows 7 Ultimate SP1 64-bit - Nvidia Forceware 296.10 Intel LGA1155 Test System Specs - Intel Core i7-2600K - x2 4GB G.Skill DDR3 PC3-14900 (CAS 8-9-8-24) - Asrock Z77 Extreme6 - ECS Z77H2-AX -Gigabyte Z77X-UD5H-WB - Intel DZ77GA-70K - Asrock Z68 Extreme7 (Intel Z68) - OCZ ZX Series 1250w - Crucial m4 256GB (SATA 6Gb/s) - Gigabyte GeForce GTX 580 SOC (1536MB) Software - Microsoft Windows 7 Ultimate SP1 64-bit - Nvidia Forceware 296.10
The Gigabyte Z77X-UD5H-WB was fastest in AIDA64’s read memory bandwidth test, beating the Asrock Z77 Extreme6 by a couple hundred megabytes per second, while the Extreme6 provided slightly better write performance. The Intel DZ77GA-70K was slower than both, but still managed to outpace the ECS Z77H2-AX in read performance, while ECS had a considerable edge in writes.
The Gigabyte Z77X-UD5H-WB beat Asrock’s board again when measuring read performance, but was slightly slower when comparing writes. The Intel DZ77GA-70K was slower than both the Asrock and Gigabyte boards, while the ECS Z77H2-AX was even slower.