Specs & Memory Performance

Asrock Vision HT 420D
  • Intel Core i5-4200M
  • Asrock HM87-HT
  • 4GB DDR3-1600 RAM
  • HGST 5K1000 1TB 5400-RPM
  • 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
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 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

Something we noticed right away when dismantling the Asrock Vision HT 420D is that it was fitted with just a single DDR3 memory module. While this provided a 4GB capacity, it didnít allow the Core i5-4200M processor to take advantage of its dual-channel memory controller.

By only including one memory module, Asrock has limited the processor to single-channel mode. We suspected this would have a major negative impact on performance so we tested the Vision HT 420D in both single and dual-channel modes.

The single-channel configuration limited the Asrock Vision HT 420D to just 10.3GB/s of bandwidth, slower than any of the desktop systems we used for comparison. However once we installed another DDR3 module allowing for dual-channel memory, the throughput soared 70% to 17.5GB/s.

That extra bandwidth doesn't affect the cache performance. While the Core i5-4200M delivered similar L2 cache performance to the AMD A8-7600 (Steamroller), the L1 performance was still considerably faster.