ATI Radeon HD 3550 vs ATI Radeon HD 4890

VS

ATI Radeon HD 3550

ATI Radeon HD 4890

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3550 and 1024MB VRAM Radeon HD 4890 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3550 's Advantages

Lower TDP (30W vs 190W)

ATI Radeon HD 4890 's Advantages

Released 8 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (124.8GB/s vs 6.336GB/s)

760 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 3550

0.048 TFLOPS

Radeon HD 4890 +2733%

1.36 TFLOPS

Radeon HD 3550

VS

Radeon HD 4890

Graphics Card

Aug 2008

Release Date

Apr 2009

Radeon R600

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

396 MHz

Memory Clock

975 MHz

Memory

512MB

Memory Size

1024MB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

256bit

6.336GB/s

Bandwidth

124.8GB/s

Render Config

2

Compute Units

10

-

40

Shading Units

800

4

TMUs

40

4

ROPs

16

-

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

256 KB

-

Theoretical Performance

2.376 GPixel/s

Pixel Rate

13.60 GPixel/s

2.376 GTexel/s

Texture Rate

34.00 GTexel/s

-

47.52 GFLOPS

FP32 (float)

1360 GFLOPS

-

FP64 (double)

272.0 GFLOPS

Board Design

30W

TDP

190W

200 W

Suggested PSU

450 W

2x DisplayPort

Outputs

2x DVI 1x S-Video

None

Power Connectors

2x 6-pin

Graphics Processor

RV620

GPU Name

RV790

RV620 PRO (215-0670006)

GPU Variant

RV790 XT (215-0758016)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.181 billion

Transistors

0.959 billion

67 mm²

Die Size

282 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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