We recently hooked up with overclocking guru Sami Mäkinen to get his take on the best way to overclock AMD's A8-3870K APU. Using his advice, we tweaked five retail -3870Ks and compared their overclocked gaming performance to a discrete Radeon HD 6670.
The impact of our GPU overclock is obvious in 3DMark 11, and, in this synthetic metric, the A8-3870K outperforms our discrete card at the Entry and Performance presets. But the Radeon wins just slightly at the Extreme preset, though 1920x1080 is probably overly ambitious in most real-world games anyway.
Although our overclocking efforts emphasize graphics power, SiSoftware's Sandra diagnostic tool helps demonstrate how the different memory data rates and x86 core overclocks affect performance.
Arithmetic performance scales based on the overclock applied to all four cores. We'd expect the Multimedia benchmark to behave similarly.
The same observation applies here as well. Now, on to benchmarking the memory subsystem.
Memory bandwidth scales in a predictable way. We're eager to see how it translates to real-world gaming.
- Sami Mäkinen Weighs In On Llano Overclocking
- Dialing In Our Overclock Using The Right Components
- Test System And Benchmarks
- Benchmark Results: Synthetics
- Benchmark Results: The Elder Scrolls V: Skyrim
- Benchmark Results: Battlefield 3
- Benchmark Results: DiRT 3
- Benchmark Results: StarCraft II
- Power And Temperature
- AMD A8-3870K: Coming Close To Radeon HD 6670