Radeon HD 6645G2
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Radeon_HD_6645G2
FPS System Benchmark
53 FPS
High
AMD PC game performance check Radeon HD 6645G2
GPU
Architecture
Terrascale 2
Process
TMUs
Texture Rate
ROPs
Pixel Rate
Shader
Processing Units
560
Driver Support
-
Compatibility
Direct X
DX 11
Shader
5.0
Open GL
4.1
Resolution (WxH)
2560x1600
Notebook GPU
SLI/Crossfire
Dedicated
Integrated
Memory
Memory
Memory Speed
667 MHz
Memory Bus
128 Bit
Memory Type
DDR3
Memory Bandwidth
21.3GB/sec
L2 Cache
0KB
Clock Speeds
Core Speed
Power
Max Power
None
Recommended Hardware
Best CPU Match
Best RAM Match
Best Resolution
GPU Upgrade
Radeon HD 6645G2 Game Requirement Analysis

Radeon HD 6645G2 is a combination of an entry/middle class level AMD Radeon HD 6490M and an integrated AMD Radeon HD 6620G (APU). This system is known as AMD Dual Graphics and also asymmetric CrossFire. It uses Alternate Frame Rendering (AFR) to render different frames on the two graphic cores and can suffer from micro-Stuttering.
The performance relies on solid driver support and, at times, it might even be worse the performance of the Radeon HD 6490M by itself. Only DX10 & DX11 modes are supported which means a game set with lower settings and not set to use DX10/DX11 is not accelerated (does not make use of the asymmetric crossfire feature within the card).
Due to the micro stuttering and performance problems, Dual Graphics may sometimes cause more problems than the possible dual card performance gains they suggest.


Source [Pip]
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GPU:
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Links [Game-Debate](http://www.game-debate.com) Game-Debate
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Release period
14-Jun-2011
Radeon HD 6645G2 vs Avg. AAA Game System Requirements
Avg. AAA Recommended Requirements
CPU
0%
Graphics Card
1021%
RAM
10GB
0%
VS
VS
Popular Game System Requirements
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Pro Evolution Soccer 2018 212% 664%
Star Wars: Battlefront 2 547% 1507%
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Far Cry 5 399% 1008%
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Radeon HD 6645G2 Extras
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