Testing Specs & Memory Bandwidth

AMD APU System Specs
  • AMD A8-7600 (3.3GHz - 3.8GHz) 65w
  • AMD A8-7600 (3.3GHz - 3.8GHz) 45w
  • AMD A10-6800K (4.1GHz - 4.4GHz)
  • AMD A10-5800K (3.8GHz - 4.2GHz)
  • Asrock FM2A88X Extreme6+
  • 8GB DDR3 RAM
  • OCZ Vector 256GB SSD
  • OCZ Mk III Silencer 750w
  • Windows 8.1 Pro 64-bit
Intel Haswell System Specs
  • Intel Core i5-4430 (3.4GHz - 3.8GHz)
  • Intel Core i3-4130 (3.4GHz - 3.8GHz)
  • Asrock Z87 Extreme9/ac
  • 8GB DDR3 RAM
  • OCZ Vector 256GB SSD
  • OCZ Mk III Silencer 750w
  • Windows 8.1 Pro 64-bit
Intel Ivy Bridge System Specs
  • Intel Core i5-3570K (3.4GHz - 3.8GHz)
  • Asrock Z77 Extreme11
  • 8GB DDR3 RAM
  • OCZ Vector 256GB SSD
  • OCZ Mk III Silencer 750w
  • Windows 8.1 Pro 64-bit

When paired with DDR3-2133 memory and running in its 65W mode, the A8-7600 managed a bandwidth of 15.73GB/s, which is comparable to the A10-6800K with DDR3-2400 memory. It's worth noting that we didn't test the A8-7600 with 2400MHz memory because we couldn't get it to work. This is either a limitation of our early engineering sample or an issue with the motherboards that may get corrected through a BIOS update. Dialing down the frequency to the 45w mode, the A8-7600 is reduced to 13.49GB/s -- comparable to the A10-600K couple with DDR3-1600 memory.

The L1 and L2 cache performance has been improved as the A8-7600 was 21% faster than the A10-6800K. Reducing the thermal limit from 65W to 45W only reduced the cache performance by 9%.