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

Maxon Cinebench 10 x64

Website: Cinebench

Maxon Cinebench is based on Maxon's popular animation software, Cinema 4D, which is used extensively by studios and production houses worldwide for 3D content creation. We've used the built-in CPU benchmark, which uses a 3D scene file to render a photo-realistic image of a concept bike. The scene makes use of various CPU-intensive features such as reflection, ambient occlusion, area lights and procedural shaders.

Cinebench 10

x64 Version - xCPU, 800x600 Image

  • Intel Pentium Dual Core E5200 OC (2x4GHz, 1333MHz FSB)
  • 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 (2x2.5GHz, 800MHz FSB)
  • AMD Athlon X2 6000+ (2x3.1GHz, 1.0GHz HTT)
  • AMD Athlon X2 5400+ (2x2.8GHz, 1.0GHz HTT)
  • 8778
  • 6678
  • 5898
  • 5867
  • 5673
  • 5291
  • 4583
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
Score

Cinebench 10

x64 Version - 1CPU, 800x600 Image

  • Intel Pentium Dual Core E5200 OC (2x4GHz, 1333MHz FSB)
  • AMD Athlon X2 7850 BE OC (2x3.1GHz, 1.8GHz HTT)
  • AMD Athlon X2 7850 BE (2x2.8GHz, 1.8GHz HTT)
  • Intel Pentium Dual Core E5200 (2x2.5GHz, 800MHz FSB)
  • AMD Athlon X2 7750 BE (2x2.7GHz, 1.8GHz HTT)
  • AMD Athlon X2 6000+ (2x3.1GHz, 1.0GHz HTT)
  • AMD Athlon X2 5400+ (2x2.8GHz, 1.0GHz HTT)
  • 4641
  • 3350
  • 3030
  • 2950
  • 2837
  • 2744
  • 2511
0
1000
2000
3000
4000
5000
Score

At stock speeds, again the AMD 7850 BE pips the Intel E5200 to the post in both multithreaded and the single threaded test, and while there's a notable increase in the single threaded performance compared to the 100MHz slower 7750 BE, in the multithreaded test it becomes negligible.

Once overclocked, the highly clockable Intel E5200 again leads the pack by a considerable margin, but the AMD 7850 BE still churns out a clear improvement in both tests.

Mulitasking Performance

Website: MPC-HC
Website: 7Zip


To run multiple applications well you need a powerful (ideally multi-core) CPU and plenty of RAM. Our multitasking test performs a massive file backup (with encryption) using 7Zip, while simultaneously playing back a HD movie file using Media Player Classic, making it a seriously demanding test for any PC.

Multitasking Test

Custom PC Benchmark

  • AMD Athlon X2 7850 BE OC (2x3.1GHz, 1.8GHz HTT)
  • Intel Pentium Dual Core E5200 OC (2x4GHz, 1333MHz FSB)
  • AMD Athlon X2 7850 BE (2x2.8GHz, 1.8GHz HTT)
  • AMD Athlon X2 7750 BE (2x2.7GHz, 1.8GHz HTT)
  • AMD Athlon X2 6000+ (2x3.1GHz, 1.0GHz HTT)
  • Intel Pentium Dual Core E5200 (2x2.5GHz, 800MHz FSB)
  • AMD Athlon X2 5400+ (2x2.8GHz, 1.0GHz HTT)
  • 247
  • 255
  • 263
  • 271
  • 316
  • 323
  • 330
0
50
100
150
200
250
300
350
Time in Seconds (lower is better)

We have to say here we have a surprisingly positive result for AMD. When overclocked. the 7850 BE beats the Intel E5200 by three percent, despite the 29 percent clock speed gap in favour of the Intel CPU. We suspect this is because of two reasons: firstly the large 2MB, lower latency L3 cache adds a buffer between the cores and main memory, but also because the latency to memory for the AMD CPUs is inherently lower than the Intel CPU. Moreover, each CPU has its own 64-bit memory controller allowing more efficient use of main memory. All this overrides the core execution engine performance gap where Intel has the advantage.

Even between the 7850 and 7750 Black Editions there's a three percent performance improvement for just 100MHz and clock to clock compared to the K8 CPUs the improvement is a massive 25 percent!
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