ATI Radeon X550 XT vs ATI Radeon HD 4770

VS

ATI Radeon X550 XT

ATI Radeon HD 4770

We compared two Desktop platform GPUs: 128MB VRAM Radeon X550 XT and 512MB VRAM Radeon HD 4770 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4770 's Advantages

Released 2 years and 3 months late

More VRAM (512GB vs 128GB)

Larger VRAM bandwidth (51.20GB/s vs 9.600GB/s)

640 additional rendering cores

Score

Radeon X550 XT

VS

Radeon HD 4770

Graphics Card

Jan 2007

Release Date

Apr 2009

Radeon R300

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

300 MHz

Memory Clock

800 MHz

Memory

128MB

Memory Size

512MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

9.600GB/s

Bandwidth

51.20GB/s

Render Config

-

Compute Units

8

-

Shading Units

640

4

TMUs

32

4

ROPs

16

-

L1 Cache

16 KB (per CU)

-

L2 Cache

128 KB

-

Theoretical Performance

1.600 GPixel/s

Pixel Rate

12.00 GPixel/s

1.600 GTexel/s

Texture Rate

24.00 GTexel/s

-

FP32 (float)

960.0 GFLOPS

-

FP64 (double)

192.0 GFLOPS

Board Design

Unknown

TDP

80W

200 W

Suggested PSU

250 W

1x DVI 1x VGA 1x S-Video

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Processor

RV410

GPU Name

RV740

-

GPU Variant

RV740 XT (215-0727019)

R400

Architecture

TeraScale

TSMC

Foundry

TSMC

110 nm

Process Size

40 nm

0.12 billion

Transistors

0.826 billion

156 mm²

Die Size

137 mm²

Graphics Features

9.0b (9_2)

DirectX

10.1 (10_1)

2.0

OpenGL

3.3

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

Shader Model

4.1

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