ATI Radeon HD 4750 vs AMD Radeon HD 7770 GHz Edition

VS

ATI Radeon HD 4750

AMD Radeon HD 7770 GHz Edition

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4750 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

AMD Radeon HD 7770 GHz Edition 's Advantages

Released 2 years and 5 months late

More VRAM (1024GB vs 512GB)

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

Lower TDP (80W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 4750

0.934 TFLOPS

Radeon HD 7770 GHz Edition +37%

1.28 TFLOPS

Radeon HD 4750

VS

Radeon HD 7770 GHz Edition

Graphics Card

Sep 2009

Release Date

Feb 2012

Radeon R700

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1125 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

51.20GB/s

Bandwidth

72.00GB/s

Render Config

8

Compute Units

10

-

640

Shading Units

640

32

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

11.68 GPixel/s

Pixel Rate

16.00 GPixel/s

23.36 GTexel/s

Texture Rate

40.00 GTexel/s

-

934.4 GFLOPS

FP32 (float)

1280 GFLOPS

186.9 GFLOPS

FP64 (double)

80.00 GFLOPS

Board Design

100W

TDP

80W

300 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

RV740

GPU Name

Cape Verde

RV740 PRO

GPU Variant

Cape Verde XT

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.826 billion

Transistors

1.5 billion

137 mm²

Die Size

123 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

-

4.1

Shader Model

5.1

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