ATI Radeon HD 4670 X2 vs AMD Radeon HD 6870 X2

VS

ATI Radeon HD 4670 X2

AMD Radeon HD 6870 X2

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4670 X2 and 1024MB VRAM Radeon HD 6870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4670 X2 's Advantages

Lower TDP (118W vs 300W)

AMD Radeon HD 6870 X2 's Advantages

Released 2 years and 10 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 22.40GB/s)

800 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4670 X2

0.48 TFLOPS

Radeon HD 6870 X2 +320%

2.016 TFLOPS

Radeon HD 4670 X2

VS

Radeon HD 6870 X2

Graphics Card

Sep 2008

Release Date

Jul 2011

Radeon R700

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

700 MHz

Memory Clock

1050 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

22.40GB/s

Bandwidth

134.4GB/s

Render Config

4

Compute Units

14

-

320

Shading Units

1120

32

TMUs

56

8

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

6.000 GPixel/s

Pixel Rate

28.80 GPixel/s

24.00 GTexel/s

Texture Rate

50.40 GTexel/s

-

480.0 GFLOPS

FP32 (float)

2.016 TFLOPS

-

Board Design

118W

TDP

300W

300 W

Suggested PSU

700 W

4x DVI

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

1x 6-pin

Power Connectors

-

Graphics Processor

RV730

GPU Name

Barts

RV730 XT (215-0719047)

GPU Variant

Barts XT (215-0798000)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.514 billion

Transistors

1.7 billion

146 mm²

Die Size

255 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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