Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game GeForce 8400 GS Rev. 3 GeForce 6800 XT
Cyberpunk 2077 3667% 3398%
Assassins Creed: Valhalla 3345% 3100%
Call of Duty: Black Ops Cold War 3233% 2996%
FIFA 21 1800% 1665%
Microsoft Flight Simulator 3233% 2996%
World of Warcraft: Shadowlands 5300% 4915%
Watch Dogs Legion 3533% 3275%
Horizon: Zero Dawn 3467% 3213%
Grand Theft Auto VI 5200% 4823%
Genshin Impact 3667% 3398%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce 6800 XT are very slightly better than the Nvidia GeForce 8400 GS Rev. 3.

The 8400 GS was released over three years more recently than the GeForce 6800 XT, and so the 8400 GS is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the GeForce 6800 XT 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 8400 GS has 256 MB more video memory than the GeForce 6800 XT, so is likely to be slightly better at displaying game textures at higher resolutions. This is supported by the fact that the 8400 GS also has superior memory performance overall.

The GeForce 6800 XT has 4.8 GB/sec greater memory bandwidth than the 8400 GS, which means that the memory performance of the GeForce 6800 XT is marginally better than the 8400 GS.

The GeForce 8400 GS Rev. 3 has 16 Shader Processing Units and the GeForce 6800 XT has 12. However, the actual shader performance of the 8400 GS is 19 and the actual shader performance of the GeForce 6800 XT is 4. The 8400 GS having 15 better shader performance is not particularly notable, as altogether the GeForce 6800 XT performs better when taking into account other relevant data.

The GeForce 8400 GS Rev. 3 requires 25 Watts to run but there is no entry for the GeForce 6800 XT.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed520 MHzvs337 MHz
Boost Clock-vs-
ArchitectureTesla GT218NV40/NV41
OC Potential Poor vs -
Driver Support Poor vs -
Release Date12 Jul 2010vs02 Jan 2005
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - green tick vs green tick -
green tick vs -
green tick vs -
green tick vs -
green tick vs -

GPU Memory

Memory512 MBvs256 MB
Memory Speed400 MHzvs350 MHz
Memory Bus64 Bitvs256 Bit
Memory TypeDDR2vsDDR
Memory Bandwidth6.4GB/secvs11.2GB/sec
L2 Cache 0 KB green tick vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units16vs12
Actual Shader Performance1%vs0%
Texture Mapping Units8vs-
Texture Rate4.2 GTexel/svs-
Render Output Units4vs-
Pixel Rate2.1 GPixel/svs-

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections1vs0
DVI Connections1vs2
HDMI Connections0vs0
DisplayPort Connections-vs-

GPU Power Requirements

Max Power25 Watts-
Recommended PSU--

GPU Features

Shader Model4.1vs3.0
Open GL3.3vs1.5
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended Processor--
Recommended RAM3 GB-
Maximum Recommended Gaming Resolution1024x768-

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewGeForce 8400 GS Rev. 3 is the third revision of the entry-level GeForce 8400 GS.
Based on the 40nm GT218 Core (against the 80nm G86 of the first revision), it offers 16 Shader Processing Units which are not comparable to those of the first revision due to being from different architectures. It also features a 512MB frame buffer against the 256MB of the first revision which will prove useful on most 3D applications.
Its performance is significantly higher than the first and second revisions, it consumes less power and runs cooler due to the smaller die size.
The groundbreaking new NVIDIA GeForce 6800 graphics processing units (GPUs) and their revolutionary technologies power worlds where reality and fantasy meet; worlds in which new standards are set for visual realism and quality, performance, and video functionality. The GeForce 6800 GPUs deliver powerful, elegant graphics to drench your senses, immersing you in unparalleled worlds of visual effects for the ultimate PC experience.
Recommended CPU
Possible GPU Upgrades
GPU Variants