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Memory Scaling, AMD's Trinity APUs, And Game Performance

Test System And Benchmarks

Test System Configuration
APUAMD A10-5800K (Trinity): 3.8 GHz Base, Up to 4.2 GHz via Turbo Core, 8 MB Shared L3 Cache, Socket FM2
MotherboardAsus F2A85-V Pro, BIOS 5109 (10/16/2012)
CPU CoolerSunbeamtech Core-Contact Freezer w/Zalman ZM-STG1 Paste
RAMG.Skill F3-2133C9D-8GAB (8 GB), DDR3-2133 CAS 9-11-10-28, Tested Stock, 2400 (10-12-11-30), 1866 (8-10-9-26), 1600 (7-9-8-24)
GraphicsAMD Radeon HD 7660D Integrated GPU
Hard DriveSamsung 470 Series MZ5PA256HMDR, 256 GB SSD
SoundIntegrated HD Audio
NetworkIntegrated Gigabit Networking
PowerSeasonic X760 SS-760KM: ATX12V v2.3, EPS12V, 80 PLUS Gold
OSMicrosoft Windows 8 Professional RTM x64
GraphicsAMD Catalyst 12.10

Asus gives AMD users access to Intel XMP memory overclocking profiles through its D.O.C.P. setting.

Asus motherboards also do a great job of automatically compensating secondary and tertiary timings in response to manual DRAM multiplier changes. That saves us a lot of time and guesswork, making its F2A85-V Pro our top pick.

3D Game Benchmarks and Settings
Aliens Vs. PredatorUsing AvP Tool v 1.03, SSAO/Tesselation/Shadows On Test Set 1: High Textures, No AA, 4x AF Test Set 2: Very High Textures, 4x AA, 16x AF
Battlefield 3Campaign Mode, "Going Hunting" 90-Second Fraps Test Set 1: Medium Quality Defaults (No AA, 4x AF) Test Set 2: Ultra Quality Defaults (4x AA, 16x AF)
F1 2012Steam version, in-game benchmark Test Set 1: High Quality Preset, No AA Test Set 2: Ultra Quality Preset, 8x AA
The Elder Scrolls V: SkyrimUpdate 1.7, Celedon Aethirborn Level 6, 25-Second Fraps Test Set 1: DX11, High Details No AA, 8x AF, FXAA enabled Test Set 2: DX11, Ultra Details, 8x AA, 16x AF, FXAA enabled
Metro 2033Full Game, Built-In Benchmark, "Frontline" Scene Test Set 1: DX11, High, AAA, 4x AF, No PhysX, No DoF Test Set 2: DX11, Very High, 4x AA, 16x AF, No PhysX, DoF On
Synthetic Benchmarks and Settings
3DMark 11Version:, Benchmark Only
Thomas Soderstrom
Thomas Soderstrom is a Senior Staff Editor at Tom's Hardware US. He tests and reviews cases, cooling, memory and motherboards.