AMD Athlon X2 7850 Black Edition CPU

April 28, 2009 | 07:03

Tags: #7850 #athlon #black #core #cpu #dual #edition #kuma #oc #overclock #overclocking #performance #processor #review #x2

Companies: #amd #test

SiSoftware Sandra Lite 2009.SP1 Beta (15.42)

Website: Sisoftware

Sisoft Sandra Unbuffered Memory Test

Sisoft Sandra 15.42

  • AMD Athlon X2 7850 BE OC (2x3.1GHz, 1.8GHz HTT)
  • AMD Athlon X2 7850 BE (2x2.8GHz, 1.8GHz HTT)
  • AMD Athlon X2 7750 BE (2x2.7GHz, 1.8GHz HTT)
  • Intel Pentium Dual Core E5200 OC (2x4GHz, 1333MHz FSB)
  • AMD Athlon X2 5400+ (2x2.8GHz, 1.0GHz HTT)
  • AMD Athlon X2 6000+ (2x3.1GHz, 1.0GHz HTT)
  • Intel Pentium Dual Core E5200 (2x2.5GHz, 800MHz FSB)
  • 10222
  • 9947
  • 9909
  • 6596
  • 6335
  • 6330
  • 4614
0
2500
5000
7500
10000
MB/s (higher is better)

Sisoft Sandra Random Memory Latency Test

Sisoft Sandra 15.42

  • AMD Athlon X2 7750 BE (2x2.7GHz, 1.8GHz HTT)
  • AMD Athlon X2 7850 BE (2x2.8GHz, 1.8GHz HTT)
  • AMD Athlon X2 7850 BE OC (2x3.1GHz, 1.8GHz HTT)
  • Intel Pentium Dual Core E5200 OC (2x4GHz, 1333MHz FSB)
  • AMD Athlon X2 6000+ (2x3.1GHz, 1.0GHz HTT)
  • AMD Athlon X2 5400+ (2x2.8GHz, 1.0GHz HTT)
  • Intel Pentium Dual Core E5200 (2x2.5GHz, 800MHz FSB)
  • 82
  • 83
  • 88
  • 95
  • 102
  • 104
  • 111
0
25
50
75
100
125
Nanoseconds (lower is better)

SiSoft Sandra tells much the same story - the 7850 offers little more than the 7750 at stock speeds, and overclocked breaks the 10,000MB/s barrier in raw numbers - almost twice as much as an Intel clocked to 4GHz. SiSoft indicates the unganged twin 64-bit K10 architecture affords far more multi-threaded bandwidth compared to the older K8 one though, although the latencies are again creeping upwards with clock speed.
Discuss this in the forums

Posted by [USRF]Obiwan - Tue Apr 28 2009 12:29

100Mhz faster?. wow! Thats like amazingly incredible fast compared to the previous fastest processor. Its so fast you don't even notice it. Its that fast!

Posted by Claave - Tue Apr 28 2009 12:57

Yay! this comment thread does work!

Posted by Ryun - Tue Apr 28 2009 14:17

Explain something to me as I'm genuinely curious: Why does the AMD 7750's (and subsequently the 7850) power consumption vary in your reviews? In your AMD 955 article the 7750 has an idle/load power consumption of 103/147W (http://www.bit-tech.net/hardware/cpus/2009/04/23/amd-phenom-ii-x4-955-black-edition-cpu-am3/11) but in this article it's up to 128/186W. Save for the motherboard used everything is the same so what's different between the two reviews?

Posted by Tim S - Tue Apr 28 2009 14:24

The motherboard has been changed after the old one died - everything was re-run on the new board.:)
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