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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R6 7300 Radeon HD 6645G2
Cyberpunk 2077 1076% 1663%
Assassins Creed: Valhalla 975% 1512%
Call of Duty: Black Ops Cold War 941% 1460%
Microsoft Flight Simulator 941% 1460%
FIFA 21 493% 789%
Immortals: Fenyx Rising 857% 1335%
Genshin Impact 1076% 1663%
Grand Theft Auto VI 1555% 2380%
World of Warcraft: Shadowlands 1586% 2427%
Watch Dogs Legion 1034% 1600%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R6 7300 are significantly better than the AMD Radeon HD 6645G2.

The Radeon HD 6645G2 has no core clock speed set, so any comparison between Texture and Pixel Fill Rates is not currently possible.

The Radeon R6 7300 was released over three years more recently than the Radeon HD 6645G2, and so the Radeon R6 7300 is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the Radeon HD 6645G2 when running the latest games.

The Radeon R6 7300 and the Radeon HD 6645G2 have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The Radeon R6 7300 has 4.3 GB/sec greater memory bandwidth than the Radeon HD 6645G2, which means that the memory performance of the Radeon R6 7300 is marginally better than the Radeon HD 6645G2.

The Radeon R6 7300 has 384 Shader Processing Units and the Radeon HD 6645G2 has 560. However, the actual shader performance of the Radeon R6 7300 is 133 and the actual shader performance of the Radeon HD 6645G2 is 0. The Radeon R6 7300 having 133 better shader performance and an altogether better performance when taking into account other relevant data means that the Radeon R6 7300 delivers a slightly smoother and more efficient experience when processing graphical data than the Radeon HD 6645G2.

The Radeon R6 7300 requires 20 Watts to run but there is no entry for the Radeon HD 6645G2.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed533 MHzvs-
Boost Clock-vs-
ArchitectureKaveriTerrascale 2
OC Potential None vs -
Driver Support - vs -
Release Date30 Jun 2014vs14 Jun 2011
GPU LinkGD LinkGD Link

GPU Memory

Memory Speed800 MHzvs667 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeDDR3vsDDR3
Memory Bandwidth25.6GB/secvs21.3GB/sec
L2 Cache 4096 KB green tick vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units384vs560
Actual Shader Performance6%vs-
Texture Mapping Units24vs-
Texture Rate12.8 GTexel/svs-
Render Output Units8vs-
Pixel Rate4.3 GPixel/svs-

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections0vs0
DisplayPort Connections-vs-

GPU Power Requirements

Max Power20 Watts-
Recommended PSU--

GPU Features

Shader Model5.0vs5.0
Open GL4.3vs4.1
Open CL-vs-
Notebook GPUyesyes

GPU Supporting Hardware

Recommended ProcessorAMD APU A10-7300 Quad-Core-
Recommended RAM4 GB-
Maximum Recommended Gaming Resolution1366x768-

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon R6 7300 is an integrated Graphics Card in the APU A10-7300.

It is based on the Graphics Core Next Architecture and offers 384 Shader Processing Units, 24 TMUs and 8 ROPs. While the central unit is set at 533MHz, the memory bus-width will depend on whether or not the system's RAM is dual-channeled and the operating memory clock, on its frequency. Thus, it can be either 64-bit or 128-bit and up to 800MHz.
The Graphics Card also shares the processor's L2 Cache of 4MB. Therefore, it reduces the need to resort to its memory bandwidth.

Overall, the Graphics Card's performance depends a lot on the system configuration. Best case scenario, expect performance superior to a dedicated NVIDIA GeForce GT 720M or an AMD Radeon R5 M230.
The card is thus suited for 720p gaming and some modern demanding games can be played at least on medium settings.
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.
Recommended CPU
Possible GPU Upgrades
GPU Variants