Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R9 M365X 4GB Radeon HD 6645G2
Hitman 3 600% 2193%
Cyberpunk 2077 438% 1663%
Assassins Creed: Valhalla 392% 1512%
FIFA 21 171% 789%
Grand Theft Auto VI 657% 2380%
Call of Duty: Black Ops Cold War 376% 1460%
Resident Evil 8 438% 1663%
Genshin Impact 438% 1663%
Far Cry 6 679% 2451%
The Medium 571% 2100%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R9 M365X 4GB are massively 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 R9 M365X was released over three years more recently than the Radeon HD 6645G2, and so the R9 M365X 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 R9 M365X has 4096 MB video memory, but the Radeon HD 6645G2 does not have an entry, so the two GPUs cannot be reliably compared in this area.

The Radeon R9 M365X 4GB has 640 Shader Processing Units and the Radeon HD 6645G2 has 560. However, the actual shader performance of the R9 M365X is 340 and the actual shader performance of the Radeon HD 6645G2 is 0. The R9 M365X having 340 better shader performance and an altogether better performance when taking into account other relevant data means that the R9 M365X delivers a significantly smoother and more efficient experience when processing graphical data than the Radeon HD 6645G2.

The Radeon R9 M365X 4GB requires 50 Watts to run but there is no entry for the Radeon HD 6645G2.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed625 MHzvs-
Boost Clock-vs-
ArchitectureGCN 1.0 Venus PROTerrascale 2
OC Potential Good vs -
Driver Support Great vs -
Release Date09 Jun 2015vs14 Jun 2011
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
7.7
green tick vs -
1600x900
5.9
green tick vs -
1920x1080
4.5
green tick vs -
2560x1440
3
green tick vs -
3840x2160
2
green tick vs -

GPU Memory

Memory4096 MBvs-
Memory Speed1000 MHzvs667 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeGDDR5vsDDR3
Memory Bandwidth64GB/secvs21.3GB/sec
L2 Cache 256 KB green tick vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units640vs560
Actual Shader Performance16%vs-
Technology28nmvs-
Texture Mapping Units40vs-
Texture Rate25 GTexel/svs-
Render Output Units16vs-
Pixel Rate10 GPixel/svs-
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections0vs0
DisplayPort Connections0vs-
Comparison

GPU Power Requirements

Max Power50 Watts-
Recommended PSU--

GPU Features

DirectX12.0vs11
Shader Model5.0vs5.0
Open GL4.4vs4.1
Open CL-vs-
Notebook GPUyesyes
SLI/Crossfireyesvsno
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-4340M 2.9GHz-
Recommended RAM8 GB-
Maximum Recommended Gaming Resolution1600x900-

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Radeon R9 M365X 4GB is a Fast-Middle-Class Mobile Graphics Card based on the First Generation of the Graphics Core Next Architecture (GCN).



Architecture
Radeon R9 M365X 4GB Features a GPU Codenamed Venus PRO which is a First Gen GCN GPU and is identical to the Cape GPU used on the Desktop Radeon R7 250X.
Venus PRO has 10 Compute Units Unlocked and thus offers 640 Shader Processing Units, 40 TMUs and 16 ROPs.

GPU
The Central Unit is Clocked at 625MHz.

Memory: Speed
The GPU is equipped with fast GDDR5 and Accesses the Frame Buffer through a 128-bit Memory Interface. The Memory Clock Operates at 1000MHz.

Memory: Frame Buffer
The GPU can fill up a Memory Pool of up to 4GB. Under most circumstances, this only proves useful in certain 3D Games whose Settings Require Large Amounts of Memory.
However, because the GPU itself is too weak to work under other circumstances in which 4GB of Memory are needed - such as 4K Gaming, a Large Frame Buffer is mostly a Gimmick.

Power Consumption
With a rated board TDP of 50W, it is suited for large laptops.

Performance
Radeon R9 M365X 4GB is a Direct Rebrand of Radeon R9 M265X.
Performance is Comparable to the Desktop Radeon R7 250.

System Suggestions
Radeon R9 M365X 4GB is best suited for resolutions up to and including 1600x900. We recommend a Strong Processor and 8GB of RAM for Optimal Performance.
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
N/A
N/A
GPU Variants
-
-