AMD Athlon II X4 620 CPU Review

October 26, 2009 | 09:33

Tags: #28ghz #45nm #620 #95w #athlon #benchmarks #cheap #core #cpu #four #ii #oc #overclock #perform #performance #processor #quad #review #x4

Companies: #amd #test

SiSoft Sandra

Download from: www.sisoftware.net

SiSoft Sandra is possibly the most famous 2D benchmarking tool going, and like Lavalys Everest, it has tools to gauge the theoretical performance of every sub-system and component in your PC. Sandra is multi-threaded and we use it to gauge the unbuffered memory performance and the latency of the memory latency.

To run the unbuffered memory test, open the Benchmarks screen, go into the Options and deselect buffering. This will give a more accurate and consistent reading of memory throughput. Then enter the Graphs menu and deselect Animate Controls and Animate Tools - these options are designed for exhibitions like Computex or CES, and are just annoying for end users.

Hit F5 to run the benchmark and once it's finished enter the Graph menu and keep pressing Change Controls Mode until the graphs look like those below. You can now average the Internal Memory Bandwidth and Float Memory Bandwidth numbers to give the unbuffered memory performance.

The latency test is much easier to run - find the Memory Latency tool on the Benchmarks page and just run it by hitting F5. The latency is the top result in the text window.

SiSoft Sandra Memory Bandwidth

  • Athlon II X4 620 (4x3.5GHz, 2.45GHz NB, 2.2GHz HTT)
  • Phenom II X3 720 BE (3x3.5GHz, 2.4GHz NB, 2.0GHz HTT)
  • Phenom II X3 720 BE (3x2.8GHz, 2.0GHz NB, 2.0GHz HTT)
  • Athlon II X4 620 (4x2.6GHz, 2.0GHz NB, 2.0GHz HTT)
  • Phenom II X2 550 BE (2x3.8GHz, 2.6GHz NB, 2.0GHz HTT)
  • Phenom II X2 550 BE (2x3.1GHz, 2.0GHz NB, 2.0GHz HTT)
  • Core 2 Duo E7400 (2x4.2GHz, 1,600MHz FSB)
  • Core 2 Duo E7400 (2x2.8GHz, 1,066MHz FSB)
  • 14532.0
  • 13670.0
  • 12466.0
  • 12401.0
  • 12346.5
  • 11660.0
  • 7885.5
  • 5474.0
0
2500
5000
7500
10000
12500
15000
MB/s - higher is better

SiSoft Sandra Memory Latency

  • Core 2 Duo E7400 (2x4.2GHz, 1,600MHz FSB)
  • Phenom II X3 720 BE (3x3.5GHz, 2.4GHz NB, 2.0GHz HTT)
  • Athlon II X4 620 (4x3.5GHz, 2.45GHz NB, 2.2GHz HTT)
  • Phenom II X2 550 BE (2x3.8GHz, 2.6GHz NB, 2.0GHz HTT)
  • Phenom II X3 720 BE (3x2.8GHz, 2.0GHz NB, 2.0GHz HTT)
  • Athlon II X4 620 (4x2.6GHz, 2.0GHz NB, 2.0GHz HTT)
  • Phenom II X2 550 BE (2x3.1GHz, 2.0GHz NB, 2.0GHz HTT)
  • Core 2 Duo E7400 (2x2.8GHz, 1,066MHz FSB)
  • 75
  • 78
  • 80
  • 84
  • 85
  • 86
  • 90
  • 94
0
25
50
75
100
Nanoseconds - lower is better

Again Sisoft Sandra confirms that AMD's Athlon II X4 memory controller is again an upgrade in performance as it keeps up with the higher clocked Phenom IIs at stock speeds, while also yielding a slightly lower latency, and steps out with a clear lead when overclocked.
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