ATI Radeon HD 4890 vs ATI Radeon HD 3550

VS

ATI Radeon HD 4890

ATI Radeon HD 3550

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

Main Differences

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

ATI Radeon HD 3550 's Advantages

Lower TDP (30W vs 190W)

Score

Benchmark

FP32 (float)

Radeon HD 4890 +2733%

1.36 TFLOPS

Radeon HD 3550

0.048 TFLOPS

Radeon HD 4890

VS

Radeon HD 3550

Graphics Card

Apr 2009

Release Date

Aug 2008

Radeon R700

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

975 MHz

Memory Clock

396 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

124.8GB/s

Bandwidth

6.336GB/s

Render Config

10

Compute Units

2

-

800

Shading Units

40

TMUs

4

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

2.376 GPixel/s

34.00 GTexel/s

Texture Rate

2.376 GTexel/s

-

1360 GFLOPS

FP32 (float)

47.52 GFLOPS

272.0 GFLOPS

FP64 (double)

-

Board Design

190W

TDP

30W

450 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

2x DisplayPort

2x 6-pin

Power Connectors

None

Graphics Processor

RV790

GPU Name

RV620

RV790 XT (215-0758016)

GPU Variant

RV620 PRO (215-0670006)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.959 billion

Transistors

0.181 billion

282 mm²

Die Size

67 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

1.1

OpenCL

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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