ATI Radeon HD 2900 XT vs AMD FireStream 9250

VS

ATI Radeon HD 2900 XT

AMD FireStream 9250

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XT and 1024MB VRAM FireStream 9250 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 XT 's Advantages

Larger VRAM bandwidth (106.0GB/s vs 63.55GB/s)

AMD FireStream 9250 's Advantages

Released 1 years and 1 months late

More VRAM (1024GB vs 512GB)

480 additional rendering cores

Lower TDP (150W vs 215W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XT

0.476 TFLOPS

FireStream 9250 +110%

1 TFLOPS

Radeon HD 2900 XT

VS

FireStream 9250

Graphics Card

May 2007

Release Date

Jun 2008

Radeon R600

Generation

FireStream

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

828 MHz

Memory Clock

993 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR3

512bit

Memory Bus

256bit

106.0GB/s

Bandwidth

63.55GB/s

Render Config

4

Compute Units

10

-

320

Shading Units

800

16

TMUs

40

16

ROPs

16

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

10.00 GPixel/s

11.89 GTexel/s

Texture Rate

25.00 GTexel/s

-

475.5 GFLOPS

FP32 (float)

1000 GFLOPS

-

FP64 (double)

200.0 GFLOPS

Board Design

215W

TDP

150W

550 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

1x DVI

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

R600

GPU Name

RV770

R600 XT (215RGMDKA13FG)

GPU Variant

RV770 PRO

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

80 nm

Process Size

55 nm

0.72 billion

Transistors

0.956 billion

420 mm²

Die Size

256 mm²

Graphics Features

10.0 (10_0)

DirectX

10.1 (10_1)

3.3 (full) 4.0 (partial)

OpenGL

3.3

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

4.0

Shader Model

4.1

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