Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game Radeon X1900 GT Radeon HD 3850 AGP
Red Dead Redemption 2 1263% 937%
Doom Eternal 1072% 791%
Cyberpunk 2077 1773% 1324%
Call of Duty: Modern Warfare 1263% 937%
Dragon Ball Z Kakarot 741% 540%
Microsoft Flight Simulator 1773% 1324%
Star Wars: Jedi - Fallen Order 1773% 1324%
Grand Theft Auto VI 1983% 1484%
Need For Speed Heat 1263% 937%
Warcraft 3: Reforged 48% 60%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 3850 AGP are noticeably better than the AMD Radeon X1900 GT.

The HD 3850 was released over a year more recently than the Radeon X1900 GT, and so the HD 3850 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the Radeon X1900 GT.

The HD 3850 has 256 MB more video memory than the Radeon X1900 GT, so is likely to be slightly better at displaying game textures at higher resolutions. This is supported by the fact that the HD 3850 also has superior memory performance overall.

The HD 3850 has 14.7 GB/sec greater memory bandwidth than the Radeon X1900 GT, which means that the memory performance of the HD 3850 is slightly better than the Radeon X1900 GT.

The Radeon X1900 GT has 36 Shader Processing Units and the Radeon HD 3850 AGP has 320. However, the actual shader performance of the Radeon X1900 GT is 13 and the actual shader performance of the HD 3850 is 214. The HD 3850 having 201 better shader performance and an altogether better performance when taking into account other relevant data means that the HD 3850 delivers a noticeably smoother and more efficient experience when processing graphical data than the Radeon X1900 GT.

The Radeon X1900 GT requires 75 Watts to run and the Radeon HD 3850 AGP requires 75 Watts. We would recommend a PSU with at least 450 Watts for the HD 3850, but we do not have a recommended PSU wattage for the Radeon X1900 GT. The two GPUs require the same amount of wattage to run. As such, there is no need to worry about which will more significantly affect your yearly electricity bills.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed575 MHzvs668 MHz
Boost Clock-vs-
ArchitectureR580RV670 PRO
OC Potential Fair vs Poor
Driver Support - vs -
Release Date01 May 2006vs03 Jan 2008
GPU LinkGD LinkGD Link

GPU Memory

Memory256 MBvs512 MB
Memory Speed600 MHzvs830 MHz
Memory Bus256 Bitvs256 Bit
Memory TypeGDDR3vsGDDR3
Memory Bandwidth38.4GB/secvs53.1GB/sec
L2 Cache - vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units36vs320
Actual Shader Performance1%vs10%
Texture Mapping Units-vs16
Texture Rate-vs10.7 GTexel/s
Render Output Units-vs16
Pixel Rate-vs10.7 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)-vs2560x1600
VGA Connections0vs0
DVI Connections2vs2
HDMI Connections0vs0
DisplayPort Connections-vs-

GPU Power Requirements

Max Power75 Wattsvs75 Watts
Recommended PSU-450 Watts & 28 Amps

GPU Features

Shader Model3.0vs4.1
Open GL2.0vs3.3
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended Processor-Intel Core 2 Duo E6850 3.0GHz
Recommended RAM-4 GB
Maximum Recommended Gaming Resolution-1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon X1900 GT is a high-end GPU based on the 90nm variant of the R500 architecture.
It's based on the R580 Core and offers 36 Pixel Shaders, 12 TMUs and 12 ROPs, on a 256-bit of standard GDDR3. The central unit runs at 575MHz and the memory clock operates at up to 600MHz.
Its performance is relatively average but just about 1% faster than Radeon X1800 XT.
Most of today's games might be playable at medium settings although the low preset will have to suffice on some. As it's not based on a Shader-Unified architecture, both DirectX 10 & 11 games aren't supported.
Radeon HD 3850 AGP is a variant of the high-end Radeon HD 3850 based on the 55nm, second unified shader architecture, R600. Check its page to know more about its Core.
Compared to Radeon HD 3850, it features twice as much video memory and an AGP 8X Bus Interface. Benchmarks indicate the double sized frame buffer benefits this GPU largely and so its performance is up to 8% better than the reference Radeon HD 3850.
Today's modern games should run fluently at medium settings but with modest resolutions. DirectX 11 games aren't supported.
Recommended CPU
Possible GPU Upgrades
GPU Variants