ATI Radeon HD 4250 vs ATI Radeon HD 2900 GT

VS

ATI Radeon HD 4250

ATI Radeon HD 2900 GT

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4250 and 256MB VRAM Radeon HD 2900 GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4250 's Advantages

Released 1 years and 3 months late

More VRAM (512GB vs 256GB)

Lower TDP (25W vs 150W)

ATI Radeon HD 2900 GT 's Advantages

Larger VRAM bandwidth (51.20GB/s vs 6.336GB/s)

200 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4250

0.048 TFLOPS

Radeon HD 2900 GT +500%

0.288 TFLOPS

Radeon HD 4250

VS

Radeon HD 2900 GT

Graphics Card

Feb 2009

Release Date

Nov 2007

Radeon R600

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

396 MHz

Memory Clock

800 MHz

Memory

512MB

Memory Size

256MB

DDR2

Memory Type

GDDR3

64bit

Memory Bus

256bit

6.336GB/s

Bandwidth

51.20GB/s

Render Config

2

Compute Units

3

-

40

Shading Units

240

4

TMUs

12

4

ROPs

12

-

64 KB

L2 Cache

128 KB

-

Theoretical Performance

2.376 GPixel/s

Pixel Rate

7.212 GPixel/s

2.376 GTexel/s

Texture Rate

7.212 GTexel/s

-

47.52 GFLOPS

FP32 (float)

288.5 GFLOPS

-

Board Design

25W

TDP

150W

200 W

Suggested PSU

450 W

1x DVI 1x VGA 1x S-Video

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 8-pin

Graphics Processor

RV620

GPU Name

R600

RV620 LE

GPU Variant

R600 GT (215RGFDKA13FG)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

80 nm

0.181 billion

Transistors

0.72 billion

67 mm²

Die Size

420 mm²

Graphics Features

10.1 (10_1)

DirectX

10.0 (10_0)

3.3

OpenGL

3.3 (full) 4.0 (partial)

N/A

OpenCL

N/A

Vulkan

N/A

-

4.1

Shader Model

4.0

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