ATI Radeon HD 4770 vs ATI Radeon HD 5550

VS

ATI Radeon HD 4770

ATI Radeon HD 5550

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4770 and 512MB VRAM Radeon HD 5550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4770 's Advantages

320 additional rendering cores

ATI Radeon HD 5550 's Advantages

Released 10 months late

Lower TDP (39W vs 80W)

Score

Benchmark

FP32 (float)

Radeon HD 4770 +172%

0.96 TFLOPS

Radeon HD 5550

0.352 TFLOPS

Radeon HD 4770

VS

Radeon HD 5550

Graphics Card

Apr 2009

Release Date

Feb 2010

Radeon R700

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

800 MHz

Memory

512MB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

51.20GB/s

Bandwidth

51.20GB/s

Render Config

8

Compute Units

4

-

640

Shading Units

320

32

TMUs

16

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

4.400 GPixel/s

24.00 GTexel/s

Texture Rate

8.800 GTexel/s

-

960.0 GFLOPS

FP32 (float)

352.0 GFLOPS

192.0 GFLOPS

FP64 (double)

-

Board Design

80W

TDP

39W

250 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

RV740

GPU Name

Redwood

RV740 XT (215-0727019)

GPU Variant

Redwood PRO2

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.826 billion

Transistors

0.627 billion

137 mm²

Die Size

104 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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