Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce 6600 GT Radeon 9550
Cyberpunk 2077 4709% 7007%
Assassins Creed: Valhalla 4298% 6400%
Call of Duty: Black Ops Cold War 4155% 6189%
FIFA 21 2326% 3485%
Microsoft Flight Simulator 4155% 6189%
Watch Dogs Legion 4538% 6755%
World of Warcraft: Shadowlands 6794% 10089%
Grand Theft Auto VI 6666% 9900%
Genshin Impact 4709% 7007%
Horizon: Zero Dawn 4453% 6630%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce 6600 GT are significantly better than the AMD Radeon 9550.

The GeForce 6600 GT was released less than a year after the Radeon 9550, and so they are likely to have similar driver support for optimizing performance when running the latest games.

Both GPUs exhibit very poor performance, so rather than upgrading from one to the other you should consider looking at more powerful GPUs. Neither of these will be able to run the latest games in any playable way.

The Radeon 9550 has 128 MB more video memory than the GeForce 6600 GT, so is likely to be slightly better at displaying game textures at higher resolutions. However, overall, the GeForce 6600 GT has superior memory performance.

The GeForce 6600 GT has 12 GB/sec greater memory bandwidth than the Radeon 9550, which means that the memory performance of the GeForce 6600 GT is slightly better than the Radeon 9550.

The GeForce 6600 GT has 11 Shader Processing Units and the Radeon 9550 has 4. However, the actual shader performance of the GeForce 6600 GT is 6 and the actual shader performance of the Radeon 9550 is 1. The GeForce 6600 GT having 5 better shader performance and an altogether better performance when taking into account other relevant data means that the GeForce 6600 GT delivers a marginally smoother and more efficient experience when processing graphical data than the Radeon 9550.

The GeForce 6600 GT requires 48 Watts to run but there is no entry for the Radeon 9550.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed500 MHzvs250 MHz
Boost Clock-vs-
ArchitectureNV43RV350
OC Potential - vs -
Driver Support - vs -
Release Date01 Nov 2004vs02 Jan 2004
GPU LinkGD LinkGD Link
Approved
Comparison

GPU Memory

Memory128 MBvs256 MB
Memory Speed475 MHzvs200 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeGDDR3vsDDR
Memory Bandwidth15.2GB/secvs3.2GB/sec
L2 Cache - vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units11vs4
Actual Shader Performance0%vs0%
Technology-vs-
Texture Mapping Units-vs-
Texture Rate-vs-
Render Output Units-vs-
Pixel Rate-vs-
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2048x1536
VGA Connections1vs1
DVI Connections1vs1
HDMI Connections0vs0
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power48 Watts-
Recommended PSU--

GPU Features

DirectX9.0cvs9
Shader Model3.0vs2.0
Open GL1.5vs2.0
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsno
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended Processor--
Recommended RAM--
Maximum Recommended Gaming Resolution--

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewSupercharge your gaming with the power of an NVIDIA GeForce 6600 GPU. The NVIDIA GeForce 6600 GPUs deliver best-in-class performance and advanced visual effects for next-generation games. The only GPU in its class with support for Microsoft DirectX 9.0 Shader Model 3.0 and with support for PCI Express, the GeForce 6600 delivers ultra-realistic effects, unmatched features, and rock-solid stability so you can play your game the way itís meant to be played. The Radeon R300 (introduced August 2002) is the third generation of Radeon graphics chips from ATI Technologies. The line features 3D acceleration based upon Direct3D 9.0 and OpenGL 2.0, a major improvement in features and performance compared to the preceding Radeon R200 design. R300 was the first fully Direct3D 9-capable consumer graphics chip. The processors also include 2D GUI acceleration, video acceleration, and multiple display outputs. R300 refers to the development codename of the initially released GPU of the generation. R300 and its derivatives would form the basis for ATI's consumer and professional product lines for over 3 years.
The integrated graphics processor based upon R300 is called Xpress 200.
Recommended CPU
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Possible GPU Upgrades
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GPU Variants
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