AMD A10 5800K Launch Review



Product: AMD A10 5800K / ASUS F2 A85-M Pro
Company: AMD
Author: James Prior
Editor: Charles Oliver
Date: October 1st, 2012

CPU Performance

SiSoft Sandra 2012:

We ran the Sandra CPU arithmetic test to get a performance reading of the ALU and FPU components of the CPU cores, reporting using industry standard Dhrystone and Whetstone units.

Below you can see the performance differences, based on Dhrystone GIPs results from above, each entry indicating the relative performance of the column to the row:

Increase i3 2120 i7 2600K
A10 5800K +13% +132%

This test shows the strength of x86 integer instruction execution performance in Sandy Bridge, AMD's quad core CMT loses out to dual core SMT despite higher clocks more threading hardware - an example of AMD's Piledriver architecture tweaked front end still being a bottleneck?

Relative performance of Whetstone GFLOPS results:

Increase i3 2120 i7 2600K
A10 5800K +18% +134%

Similarly, AMD's Piledriver CPU floating point performance is punished by Intel's Sandy Bridge.

Next up is the Processor Multi-Media test, testing the CPU side SIMD capabilities for media manipulation, reporting results in megapixels per second.

Finalwire AIDA64

We ran the AIDA64 benchmarks FPU VP8 and FPU Julia to examine the floating point performance, reporting in a numerical score result.

Relative performance of VP8 results:

Increase i3 HD 2000 i7 HD 3000
A10 5800K -2% +60%

This demonstrates the performance of VP8 encoding, the codec used for WebM video. It uses SSE2/SSSE3 and hyperthreading aware. AMD barely scrapes a win vs. the Core i3 here.

Comparison of Julia results:

Increase i3 HD 2000 i7 HD 3000
A10 5800K +36% +180%

The Julia test measures single precision floating point through the generation of fractal imagery, the Julia set. This test is FMA4, AVX and SSE aware. In this case Intel's AVX strength trumps AMD's AVX or FMA4 capabilities significantly.