ATI Radeon HD 4670 vs ATI Radeon HD 4890

VS

ATI Radeon HD 4670

ATI Radeon HD 4890

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4670 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 4670 's Advantages

Lower TDP (59W vs 190W)

ATI Radeon HD 4890 's Advantages

Released 7 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (124.8GB/s vs 32.00GB/s)

480 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4670

0.48 TFLOPS

Radeon HD 4890 +183%

1.36 TFLOPS

Radeon HD 4670

VS

Radeon HD 4890

Graphics Card

Sep 2008

Release Date

Apr 2009

Radeon R700

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

975 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

32.00GB/s

Bandwidth

124.8GB/s

Render Config

4

Compute Units

10

-

320

Shading Units

800

32

TMUs

40

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

6.000 GPixel/s

Pixel Rate

13.60 GPixel/s

24.00 GTexel/s

Texture Rate

34.00 GTexel/s

-

480.0 GFLOPS

FP32 (float)

1360 GFLOPS

-

FP64 (double)

272.0 GFLOPS

Board Design

59W

TDP

190W

250 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

2x DVI 1x S-Video

None

Power Connectors

2x 6-pin

Graphics Processor

RV730

GPU Name

RV790

RV730 XT (215-0719047)

GPU Variant

RV790 XT (215-0758016)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.514 billion

Transistors

0.959 billion

146 mm²

Die Size

282 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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