AMD Radeon HD 6490 vs ATI Radeon HD 4670 X2

VS

AMD Radeon HD 6490

ATI Radeon HD 4670 X2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6490 and 512MB VRAM Radeon HD 4670 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6490 's Advantages

Released 2 years and 10 months late

More VRAM (1024GB vs 512GB)

Lower TDP (39W vs 118W)

ATI Radeon HD 4670 X2 's Advantages

Larger VRAM bandwidth (22.40GB/s vs 16.00GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6490

0.352 TFLOPS

Radeon HD 4670 X2 +36%

0.48 TFLOPS

Radeon HD 6490

VS

Radeon HD 4670 X2

Graphics Card

Jul 2011

Release Date

Sep 2008

Northern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

500 MHz

Memory Clock

700 MHz

Memory

1024MB

Memory Size

512MB

DDR2

Memory Type

GDDR3

128bit

Memory Bus

128bit

16.00GB/s

Bandwidth

22.40GB/s

Render Config

4

Compute Units

4

-

320

Shading Units

320

16

TMUs

32

8

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

6.000 GPixel/s

8.800 GTexel/s

Texture Rate

24.00 GTexel/s

-

352.0 GFLOPS

FP32 (float)

480.0 GFLOPS

-

Board Design

39W

TDP

118W

200 W

Suggested PSU

300 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

4x DVI

None

Power Connectors

1x 6-pin

Graphics Processor

Redwood

GPU Name

RV730

Redwood LE

GPU Variant

RV730 XT (215-0719047)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.627 billion

Transistors

0.514 billion

104 mm²

Die Size

146 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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