ATI Radeon HD 4250 vs AMD Radeon HD 7770 GHz Edition

VS

ATI Radeon HD 4250

AMD Radeon HD 7770 GHz Edition

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4250 and 1024MB VRAM Radeon HD 7770 GHz Edition 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)

AMD Radeon HD 7770 GHz Edition 's Advantages

Released 3 years late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (72.00GB/s vs 6.336GB/s)

600 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4250

0.048 TFLOPS

Radeon HD 7770 GHz Edition +2566%

1.28 TFLOPS

Radeon HD 4250

VS

Radeon HD 7770 GHz Edition

Graphics Card

Feb 2009

Release Date

Feb 2012

Radeon R600

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

396 MHz

Memory Clock

1125 MHz

Memory

512MB

Memory Size

1024MB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

128bit

6.336GB/s

Bandwidth

72.00GB/s

Render Config

2

Compute Units

10

-

40

Shading Units

640

4

TMUs

40

4

ROPs

16

-

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

256 KB

-

Theoretical Performance

2.376 GPixel/s

Pixel Rate

16.00 GPixel/s

2.376 GTexel/s

Texture Rate

40.00 GTexel/s

-

47.52 GFLOPS

FP32 (float)

1280 GFLOPS

-

FP64 (double)

80.00 GFLOPS

Board Design

25W

TDP

80W

200 W

Suggested PSU

250 W

1x DVI 1x VGA 1x S-Video

Outputs

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

None

Power Connectors

1x 6-pin

Graphics Processor

RV620

GPU Name

Cape Verde

RV620 LE

GPU Variant

Cape Verde XT

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.181 billion

Transistors

1.5 billion

67 mm²

Die Size

123 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3

OpenGL

4.6

N/A

OpenCL

1.2

N/A

Vulkan

1.2

-

4.1

Shader Model

5.1

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