Sapphire Pure CrossFireX PC-AM2RD790

Written by Richard Swinburne

February 15, 2008 | 08:27

Tags: #64 #790fx #am2 #article #athlon #crossfirex #evaluation #overclocking #performance #phenom #review

Companies: #amd #pure #sapphire #test

Memory Performance:


Everest Memory Performance Test

  • Sapphire CrossFireX 790FX
  • Gigabyte GA-MA790FX-DQ6
  • MSI K9A2 CF
  • Asus M2N32-SLI
    • 8844
    • 8546
    • 8912
    • 8618
    • 9294
    • 8614
    • 8917
    • 8527
0
2500
5000
7500
10000
  • Read (MB/s)
  • Write (MB/s)

Everest Memory Latency

  • Sapphire CrossFireX 790FX
  • Gigabyte GA-MA790FX-DQ6
  • MSI K9A2 CF
  • Asus M2N32-SLI
  • 45.8
  • 44.7
  • 42.7
  • 47.2
0
10
20
30
40
50
nanoseconds (lower is better)

Unbuffered Memory Performance

Sisoft Sandra Unbuffered Memory Test

  • Sapphire CrossFireX 790FX
  • Gigabyte GA-MA790FX-DQ6
  • MSI K9A2 CF
  • Asus M2N32-SLI
  • 7166.3
  • 6644.3
  • 7284.2
  • 7316.8
0
1000
2000
3000
4000
5000
6000
7000
8000
MB/s

Memory Latency

Sisoft Sandra Random Memory Latency Test

  • Sapphire CrossFireX 790FX
  • Gigabyte GA-MA790FX-DQ6
  • MSI K9A2 CF
  • Asus M2N32-SLI
  • 64
  • 68
  • 84
  • 61
0
10
20
30
40
50
60
70
80
90
nanoseconds (lower is better)

1T was also unattainable for stable running – in the end we could only squeeze out 3-3-3-10-18-2T from our memory which is nearly the fastest we can run it at, although not quite.

The Everest results reflect this with a marginally slower latency and slightly lower raw memory performance. The SiSoft results are a little different, showing an equally high raw memory performance but very low memory latency.
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