ATI Radeon HD 4250 vs ATI Radeon HD 4770

VS

ATI Radeon HD 4250

ATI Radeon HD 4770

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4250 and 512MB VRAM Radeon HD 4770 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4250 's Advantages

Lower TDP (25W vs 80W)

ATI Radeon HD 4770 's Advantages

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

600 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4250

0.048 TFLOPS

Radeon HD 4770 +1900%

0.96 TFLOPS

Radeon HD 4250

VS

Radeon HD 4770

Graphics Card

Feb 2009

Release Date

Apr 2009

Radeon R600

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

396 MHz

Memory Clock

800 MHz

Memory

512MB

Memory Size

512MB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

128bit

6.336GB/s

Bandwidth

51.20GB/s

Render Config

2

Compute Units

8

-

40

Shading Units

640

4

TMUs

32

4

ROPs

16

-

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

128 KB

-

Theoretical Performance

2.376 GPixel/s

Pixel Rate

12.00 GPixel/s

2.376 GTexel/s

Texture Rate

24.00 GTexel/s

-

47.52 GFLOPS

FP32 (float)

960.0 GFLOPS

-

FP64 (double)

192.0 GFLOPS

Board Design

25W

TDP

80W

200 W

Suggested PSU

250 W

1x DVI 1x VGA 1x S-Video

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Processor

RV620

GPU Name

RV740

RV620 LE

GPU Variant

RV740 XT (215-0727019)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.181 billion

Transistors

0.826 billion

67 mm²

Die Size

137 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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