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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 6450 v3 Sapphire FleX 1GB Edition GeForce 6800 XT
Cyberpunk 2077 2411% 3398%
Assassins Creed: Valhalla 2197% 3100%
Call of Duty: Black Ops Cold War 2122% 2996%
Microsoft Flight Simulator 2122% 2996%
FIFA 21 1167% 1665%
Immortals: Fenyx Rising 1944% 2748%
Genshin Impact 2411% 3398%
Grand Theft Auto VI 3433% 4823%
World of Warcraft: Shadowlands 3500% 4915%
Watch Dogs Legion 2322% 3275%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 6450 v3 Sapphire FleX 1GB Edition are significantly better than the Nvidia GeForce 6800 XT.

The HD 6450 was released over three years more recently than the GeForce 6800 XT, and so the HD 6450 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.

The HD 6450 has 768 MB more video memory than the GeForce 6800 XT, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the HD 6450 also has superior memory performance overall.

The HD 6450 has 1.6 GB/sec greater memory bandwidth than the GeForce 6800 XT, which means that the memory performance of the HD 6450 is marginally better than the GeForce 6800 XT.

The Radeon HD 6450 v3 Sapphire FleX 1GB Edition has 160 Shader Processing Units and the GeForce 6800 XT has 12. However, the actual shader performance of the HD 6450 is 50 and the actual shader performance of the GeForce 6800 XT is 4. The HD 6450 having 46 better shader performance and an altogether better performance when taking into account other relevant data means that the HD 6450 delivers a marginally smoother and more efficient experience when processing graphical data than the GeForce 6800 XT.

The Radeon HD 6450 v3 Sapphire FleX 1GB Edition requires 18 Watts to run but there is no entry for the GeForce 6800 XT. We would recommend a PSU with at least 400 Watts for the HD 6450.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed625 MHzvs337 MHz
Boost Clock-vs-
ArchitectureTerascale 2 Caicos PRONV40/NV41
OC Potential Fair vs -
Driver Support Poor vs -
Release Date19 Apr 2011vs02 Jan 2005
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - green tick vs green tick -
green tick vs -
green tick vs -
green tick vs -
3840x2160 - green tick vs green tick -

GPU Memory

Memory1024 MBvs256 MB
Memory Speed800 MHzvs350 MHz
Memory Bus64 Bitvs256 Bit
Memory TypeGDDR3vsDDR
Memory Bandwidth12.8GB/secvs11.2GB/sec
L2 Cache 128 KB green tick vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units160vs12
Actual Shader Performance2%vs0%
Texture Mapping Units8vs-
Texture Rate5 GTexel/svs-
Render Output Units4vs-
Pixel Rate2.5 GPixel/svs-

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections0vs0
DVI Connections2vs2
HDMI Connections1vs0
DisplayPort Connections-vs-

GPU Power Requirements

Max Power18 Watts-
Recommended PSU400 Watts & 29 Amps-

GPU Features

Shader Model5.0vs3.0
Open GL4.3vs1.5
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Celeron G440 1.6GHz-
Recommended RAM2 GB-
Maximum Recommended Gaming Resolution1024x768-

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Radeon HD 6450 v3 Sapphire FleX 1GB Edition is a special edition of AMD's Entry-Level Radeon HD 6450 v3, created by Sapphire.

Overclock: Central Unit
The Central Unit runs at the same speed.

Overclock: Memory Clock
The Operating Memory Clock runs at 800MHz and the Frame Buffer was Doubled to 1GB. This is a gimmick and in no way benefits the GPU.

Cooling Solution
The Cooling System has been replaced by Sapphire's Passive Cooling, meaning the Graphics Card is much quieter.

Without Overclocking Out of The Box, Radeon HD 6450 v3 Sapphire FleX 1GB Edition is as fast as the reference Radeon HD 6450 v3.
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