AMD Radeon HD 6970 X2 vs ATI Radeon HD 4670

VS

AMD Radeon HD 6970 X2

ATI Radeon HD 4670

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 X2 and 512MB VRAM Radeon HD 4670 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6970 X2 's Advantages

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (176.0GB/s vs 32.00GB/s)

1216 additional rendering cores

ATI Radeon HD 4670 's Advantages

Lower TDP (59W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6970 X2 +463%

2.703 TFLOPS

Radeon HD 4670

0.48 TFLOPS

Radeon HD 6970 X2

VS

Radeon HD 4670

Graphics Card

Unknown

Release Date

Sep 2008

Northern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

176.0GB/s

Bandwidth

32.00GB/s

Render Config

24

Compute Units

4

-

1536

Shading Units

320

96

TMUs

32

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

28.16 GPixel/s

Pixel Rate

6.000 GPixel/s

84.48 GTexel/s

Texture Rate

24.00 GTexel/s

-

2.703 TFLOPS

FP32 (float)

480.0 GFLOPS

-

Board Design

375W

TDP

59W

750 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

2x DVI 1x S-Video

3x 8-pin

Power Connectors

None

Graphics Processor

Antilles

GPU Name

RV730

Antilles XT (215-0807027)

GPU Variant

RV730 XT (215-0719047)

TeraScale 3

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

2.64 billion

Transistors

0.514 billion

389 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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