ATI Radeon HD 2900 XT vs ATI Radeon X800 GTO AGP

VS

ATI Radeon HD 2900 XT

ATI Radeon X800 GTO AGP

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XT and 256MB VRAM Radeon X800 GTO AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 XT 's Advantages

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (106.0GB/s vs 31.36GB/s)

320 additional rendering cores

ATI Radeon X800 GTO AGP 's Advantages

Released 6 months late

Lower TDP (49W vs 215W)

Score

Radeon HD 2900 XT

VS

Radeon X800 GTO AGP

Graphics Card

May 2007

Release Date

Nov 2007

Radeon R600

Generation

Radeon R400 AGP

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

828 MHz

Memory Clock

490 MHz

Memory

512MB

Memory Size

256MB

GDDR3

Memory Type

GDDR3

512bit

Memory Bus

256bit

106.0GB/s

Bandwidth

31.36GB/s

Render Config

4

Compute Units

-

320

Shading Units

-

16

TMUs

12

16

ROPs

12

-

256 KB

L2 Cache

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

4.800 GPixel/s

11.89 GTexel/s

Texture Rate

4.800 GTexel/s

-

475.5 GFLOPS

FP32 (float)

-

Board Design

215W

TDP

49W

550 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x Molex

Graphics Processor

R600

GPU Name

R420

R600 XT (215RGMDKA13FG)

GPU Variant

R420 GTO

TeraScale

Architecture

R400

TSMC

Foundry

TSMC

80 nm

Process Size

130 nm

0.72 billion

Transistors

0.16 billion

420 mm²

Die Size

281 mm²

Graphics Features

10.0 (10_0)

DirectX

9.0b (9_2)

3.3 (full) 4.0 (partial)

OpenGL

2.1

N/A

OpenCL

N/A

Vulkan

N/A

-

4.0

Shader Model

-

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