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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R5 M255 GeForce GT 550M 2GB
Hitman 3 1487% 1489%
Cyberpunk 2077 1120% 1122%
Assassins Creed: Valhalla 1016% 1017%
Resident Evil 8 1120% 1122%
FIFA 21 516% 516%
Grand Theft Auto VI 1617% 1619%
Call of Duty: Black Ops Cold War 980% 981%
Genshin Impact 1120% 1122%
Far Cry 6 1666% 1668%
The Medium 1423% 1424%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R5 M255 are marginally better than the Nvidia GeForce GT 550M 2GB.

The Radeon R5 M255 has a 185 MHz higher core clock speed and 4 more Texture Mapping Units than the GT 550M. This results in the Radeon R5 M255 providing 6.7 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The Radeon R5 M255 has a 185 MHz higher core clock speed and 4 more Render Output Units than the GT 550M. This results in the Radeon R5 M255 providing 4.4 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The Radeon R5 M255 was released over three years more recently than the GT 550M, and so the Radeon R5 M255 is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the GT 550M when running the latest games.

The Radeon R5 M255 has 2048 MB more video memory than the GT 550M, so is likely to be much better at displaying game textures at higher resolutions. However, the overall memory performance is about the same.

The GT 550M has 12.8 GB/sec greater memory bandwidth than the Radeon R5 M255, which means that the memory performance of the GT 550M is slightly better than the Radeon R5 M255.

The Radeon R5 M255 has 320 Shader Processing Units and the GeForce GT 550M 2GB has 96. However, the actual shader performance of the Radeon R5 M255 is 256 and the actual shader performance of the GT 550M is 142. The Radeon R5 M255 having 114 better shader performance is not particularly notable, as altogether the GT 550M performs better when taking into account other relevant data.

The Radeon R5 M255 transistor size technology is 12 nm (nanometers) smaller than the GT 550M. This means that the Radeon R5 M255 is expected to run slightly cooler and achieve higher clock frequencies than the GT 550M. While they exhibit similar graphical performance, the Radeon R5 M255 should consume less power than the GT 550M.

The Radeon R5 M255 requires 20 Watts to run and the GeForce GT 550M 2GB requires 35 Watts. The GT 550M requires 15 Watts more than the Radeon R5 M255 to run. The difference is not significant enough for the GT 550M to have a noticeably larger impact on your yearly electricity bills than the Radeon R5 M255.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed925 MHzvs740 MHz
Boost Clock940 MHzvs-
ArchitectureGCN 1.1 Sun PROFermi GF108
OC Potential Poor vs Poor
Driver Support Great vs Poor
Release Date12 Oct 2014vs06 Jan 2011
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - vs green tick
1600x900 - vs green tick
1920x1080 - vs green tick
2560x1440 - vs green tick
3840x2160 - green tick vs green tick -

GPU Memory

Memory4096 MBvs2048 MB
Memory Speed1000 MHzvs900 MHz
Memory Bus64 Bitvs128 Bit
Memory TypeDDR3vsDDR3
Memory Bandwidth16GB/secvs28.8GB/sec
L2 Cache 256 KB green tick vs green tick 256 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units320vs96
Actual Shader Performance12%vs7%
Texture Mapping Units20vs16
Texture Rate18.5 GTexel/svs11.8 GTexel/s
Render Output Units8vs4
Pixel Rate7.4 GPixel/svs3 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections0vs0
DisplayPort Connections-vs-

GPU Power Requirements

Max Power20 Wattsvs35 Watts
Recommended PSU--

GPU Features

Shader Model5.0vs5.0
Open GL4.4vs4.5
Open CL-vs-
Notebook GPUyesyes

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-4000M 2.4GHzvsIntel Core i3-2330M 2.2GHz
Recommended RAM4 GBvs4 GB
Maximum Recommended Gaming Resolution1366x768vs1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon R5 M255 is an entry-level graphics card based on the second revision of the Graphics Core Next architecture.

It offers a core codenamed Sun PRO that packs 320 Shader Processing Units, 20 TMUs and 8 ROPs, on a 64-bit memory interface of DDR3. While the central unit runs at 925MHz and goes up to 940MHz, in Turbo Mode, the memory clock operates at 1000MHz. The regular version should offer 2GB of video memory but expect to see gimmicks of up to 4GB.
Technically R5 M255 is just a higher-clocked Radeon HD 8570M. Due to its very limited performance, even Intel's Iris Graphics Will offer better performance and so it ends up being an useless acquisition.
GeForce GT 550M 2GB is a middle-class Mobile Graphics Card based on the first revision of the Fermi Architecture.

The Fermi Architecture is manufactured with a 40nm technology and uses a technique known as Hot Clocking: The Shaders are clocked twice as fast as the Central Unit. While this leads to a reasonable performance boost, it causes enormous amounts of energy dissipation, leading, ultimately, to a significantly higher operating temperature.
Fermi is also the first GPU architecture with fully cached memory access which increases memory performance.

It equips a GPU Codenamed GF108 which has 2 Stream Multiprocessors activated and thus offers 96 Shader Processing Units, 16 TMUs and 4 ROPs. The Central Unit is clocked at 740MHz.

The GPU accesses a 2GB frame buffer of DDR3, through a 128-bit memory interface. The size of the frame buffer is exaggerated and in no way benefits the GPU. The Memory Clock Operates at 900MHz.

DirectX 11.0 Support (11.0 Hardware Default) and support for Optimus, 3D Vision Surround, PhysX, Realtime Raytracing and other technologies

Power Consumption
With a rated board TDP of 35W, it is suited for 15" or larger laptops.

Gaming benchmarks put its performance only slightly above a desktop GeForce GT 430.

System Suggestions
We recommend a modest processor (Intel Core i3 Mobile) and 4GB of RAM for a system with GeForce GT 550M 2GB.
Recommended CPU
Possible GPU Upgrades
GPU Variants