AMD Radeon HD 7770 GHz Edition vs ATI Radeon HD 4770

VS

AMD Radeon HD 7770 GHz Edition ATI Radeon HD 4770

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7770 GHz Edition and 512MB VRAM Radeon HD 4770 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 2 years and 10 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (72.00GB/s vs 51.20GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 7770 GHz Edition +33%

1.28 TFLOPS

Radeon HD 4770

0.96 TFLOPS

Radeon HD 7770 GHz Edition

VS

Radeon HD 4770

Graphics Card

Feb 2012

Release Date

Apr 2009

Southern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1125 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

51.20GB/s

Render Config

-

SM Count

-

10

Compute Units

8

640

Shading Units

640

40

TMUs

32

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

Theoretical Performance

16.00 GPixel/s

Pixel Rate

12.00 GPixel/s

40.00 GTexel/s

Texture Rate

24.00 GTexel/s

-

FP16 (half)

-

1280 GFLOPS

FP32 (float)

960.0 GFLOPS

80.00 GFLOPS

FP64 (double)

192.0 GFLOPS

Graphics Processor

Cape Verde

GPU Name

RV740

Cape Verde XT

GPU Variant

RV740 XT (215-0727019)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

0.826 billion

123 mm²

Die Size

137 mm²

Board Design

80W

TDP

80W

250 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

4.1

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