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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GT 550M 2GB Radeon HD 6490M
Cyberpunk 2077 1122% 2008%
Hitman 3 1489% 2643%
Assassins Creed: Valhalla 1017% 1828%
Call of Duty: Black Ops Cold War 981% 1766%
FIFA 21 516% 963%
Grand Theft Auto VI 1619% 2866%
Far Cry 6 1668% 2950%
Genshin Impact 1122% 2008%
Battlefield 6 1489% 2643%
Resident Evil 8 1122% 2008%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 550M 2GB are significantly better than the AMD Radeon HD 6490M.

The Radeon HD 6490M has a 10 MHz higher core clock speed than the GT 550M, but the GT 550M has 8 more Texture Mapping Units than the Radeon HD 6490M. As a result, the GT 550M exhibits a 5.8 GTexel/s better Texture Fill Rate than the Radeon HD 6490M. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The Radeon HD 6490M has a 10 MHz higher core clock speed than the GT 550M, but both GPUs exhibit the same Pixel Fill Rate. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GT 550M was released less than a year after the Radeon HD 6490M, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The GT 550M has 1536 MB more video memory than the Radeon HD 6490M, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GT 550M also has superior memory performance overall.

The GT 550M has 3.2 GB/sec greater memory bandwidth than the Radeon HD 6490M, which means that the memory performance of the GT 550M is marginally better than the Radeon HD 6490M.

The GeForce GT 550M 2GB has 96 Shader Processing Units and the Radeon HD 6490M has 160. However, the actual shader performance of the GT 550M is 142 and the actual shader performance of the Radeon HD 6490M is 60. The GT 550M having 82 better shader performance and an altogether better performance when taking into account other relevant data means that the GT 550M delivers a marginally smoother and more efficient experience when processing graphical data than the Radeon HD 6490M.

The GeForce GT 550M 2GB requires 35 Watts to run and the Radeon HD 6490M requires 14 Watts. The GT 550M requires 21 Watts more than the Radeon HD 6490M 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 HD 6490M.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed740 MHzvs750 MHz
Boost Clock-vs-
ArchitectureFermi GF108Terascale 2 Seymour XTX
OC Potential Poor vs Poor
Driver Support Poor vs Poor
Release Date06 Jan 2011vs04 Jan 2011
GPU LinkGD LinkGD Link

Resolution Performance

green tick vs -
green tick vs -
green tick vs -
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3840x2160 - green tick vs green tick -

GPU Memory

Memory2048 MBvs512 MB
Memory Speed900 MHzvs800 MHz
Memory Bus128 Bitvs64 Bit
Memory TypeDDR3vsGDDR5
Memory Bandwidth28.8GB/secvs25.6GB/sec
L2 Cache 256 KB green tick vs 128 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units96vs160
Actual Shader Performance7%vs3%
Texture Mapping Units16vs8
Texture Rate11.8 GTexel/svs6 GTexel/s
Render Output Units4vs4
Pixel Rate3 GPixel/svs3 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections0vs1
DVI Connections0vs1
HDMI Connections0vs1
DisplayPort Connections-vs-

GPU Power Requirements

Max Power35 Wattsvs14 Watts
Recommended PSU--

GPU Features

Shader Model5.0vs5.0
Open GL4.5vs4.3
Open CL-vs-
Notebook GPUyesyes

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-2330M 2.2GHzvsIntel Core i3-M350 2.26GHz
Recommended RAM4 GBvs4 GB
Maximum Recommended Gaming Resolution1366x768vs1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
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.
Radeon HD 6490M is an entry-level GPU based on the 40nm Terrascale 2 architecture.
It's based on the Caicos Core (therefore related to Radeon HD 6450) and offers 160 Shader Processing Units, 8 TMUs and 4 ROPs on a 64-bit memory interface of fast GDDR5. Its central clock runs at up to 750MHz (800MHz if paired with DDR3) and the memory clock operates at 800MHz.
Despite being higher clocked than desktop Radeon HD 6450, it's expected to offer the same performance due to lower driver support.
Using a 720p resolution, almost all of today's games are only playable at low settings but with very fluent frame rates (40+).

Note 1: Radeon HD 6490M was later (2012) renamed and released as Radeon HD 7470M.
Note 2: There is also a DDR3 version of this card that has even lower bandwidth but comes higher clocked. Still, it's expected to perform considerably worse.
Recommended CPU
Possible GPU Upgrades
GPU Variants