AMD Radeon HD 7770 GHz Edition vs ATI Radeon HD 2400

VS

AMD Radeon HD 7770 GHz Edition

ATI Radeon HD 2400

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7770 GHz Edition and 256MB VRAM ATI Radeon HD 2400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7770 GHz Edition 's Advantages

Released 4 years late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (72.00GB/s vs 7.920GB/s)

600 additional rendering cores

ATI Radeon HD 2400 's Advantages

Lower TDP (20W vs 80W)

Score

Benchmark

FP32 (float)

Radeon HD 7770 GHz Edition +3900%

1.28 TFLOPS

ATI Radeon HD 2400

0.032 TFLOPS

Radeon HD 7770 GHz Edition

VS

ATI Radeon HD 2400

Graphics Card

Feb 2012

Release Date

Feb 2008

Southern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

495 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

64bit

72.00GB/s

Bandwidth

7.920GB/s

Render Config

10

Compute Units

2

-

640

Shading Units

40

TMUs

4

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

32 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

1.592 GPixel/s

40.00 GTexel/s

Texture Rate

1.592 GTexel/s

-

1280 GFLOPS

FP32 (float)

31.84 GFLOPS

80.00 GFLOPS

FP64 (double)

-

Board Design

80W

TDP

20W

250 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Processor

Cape Verde

GPU Name

RV610

Cape Verde XT

GPU Variant

-

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

65 nm

1.5 billion

Transistors

0.18 billion

123 mm²

Die Size

85 mm²

Graphics Features

12 (11_1)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

4.0

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