ATI Radeon HD 4770 vs ATI Radeon HD 5950

VS

ATI Radeon HD 4770

ATI Radeon HD 5950

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4770 and 1024MB VRAM ATI Radeon HD 5950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4770 's Advantages

Lower TDP (80W vs 302W)

ATI Radeon HD 5950 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (128.0GB/s vs 51.20GB/s)

800 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4770

0.96 TFLOPS

ATI Radeon HD 5950 +117%

2.088 TFLOPS

Radeon HD 4770

VS

ATI Radeon HD 5950

Graphics Card

Apr 2009

Release Date

Unknown

Radeon R700

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1000 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

51.20GB/s

Bandwidth

128.0GB/s

Render Config

8

Compute Units

18

-

640

Shading Units

1440

32

TMUs

72

16

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

23.20 GPixel/s

24.00 GTexel/s

Texture Rate

52.20 GTexel/s

-

960.0 GFLOPS

FP32 (float)

2.088 TFLOPS

192.0 GFLOPS

FP64 (double)

-

Board Design

80W

TDP

302W

250 W

Suggested PSU

700 W

2x DVI 1x S-Video

Outputs

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

RV740

GPU Name

Hemlock

RV740 XT (215-0727019)

GPU Variant

Hemlock PRO

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.826 billion

Transistors

2.154 billion

137 mm²

Die Size

334 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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