Test System Specs & Memory Performance

Core i7 Test System Specs
- Intel Core i7 2600K
- x4 2GB G.Skill DDR3 PC3-12800 (CAS 8-8-8-20)
- Gigabyte Z68XP-UD3-iSSD (Intel Z68)
- Asrock Z68 Extreme4 (Intel Z68)
- Asrock P67 Extreme6 (Intel P67)
- OCZ ZX Series 1250w
- Samsung Spinpoint F1 HD103UJ 1TB (SATA 3Gb/s)
- Kingston SSDNow V+ 180 64GB (SATA 3Gb/s)
- GeForce GTX 580 (1536MB)
- Microsoft Windows 7 Ultimate 64-bit
- Nvidia Forceware 270.61

AMD Phenom II X6 Test System Specs
- AMD Phenom II X6 1100T (3.30GHz)
- x4 2GB G.Skill DDR3 PC3-12800 (CAS 8-8-8-20)
- Asus Crosshair IV (AMD 890FX)
- GeForce GTX 580 (1536MB)
- OCZ ZX Series 1250w
- Samsung Spinpoint F1 HD103UJ 1TB (SATA 3Gb/s)
Software
- Microsoft Windows 7 Ultimate 64-bit
- Nvidia Forceware 270.61

Core i5 Test System Specs
- Intel Core i5 750 (2.66GHz)
- x4 2GB G.Skill DDR3 PC3-12800 (CAS 8-8-8-20)
- Asus P7P55D-E Premium (Intel P55)
- GeForce GTX 580 (1536MB)
- OCZ ZX Series 1250w
- Samsung Spinpoint F1 HD103UJ 1TB (SATA 3Gb/s)
Software
- Microsoft Windows 7 Ultimate 64-bit
- Nvidia Forceware 270.61

As expected, the Gigabyte Z68XP-UD3-iSSD's memory bandwidth performance is similar to other Z68-based motherboards such as the Asrock Z68 Extreme4 and even older P67 motherboards.

Since the L2 cache benchmark is limited to CPU performance, the motherboard has little impact here and the Z68 motherboards provide unsurprisingly similar results.