AMD Radeon HD 6970 X2 vs AMD Radeon HD 6850 X2

VS

AMD Radeon HD 6970 X2

AMD Radeon HD 6850 X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 X2 and 2GB VRAM Radeon HD 6850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6970 X2 's Advantages

Larger VRAM bandwidth (176.0GB/s vs 134.4GB/s)

576 additional rendering cores

AMD Radeon HD 6850 X2 's Advantages

Lower TDP (254W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6970 X2 +75%

2.703 TFLOPS

Radeon HD 6850 X2

1.536 TFLOPS

Radeon HD 6970 X2

VS

Radeon HD 6850 X2

Graphics Card

Unknown

Release Date

Sep 2011

Northern Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1050 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

176.0GB/s

Bandwidth

134.4GB/s

Render Config

24

Compute Units

12

-

1536

Shading Units

960

96

TMUs

48

32

ROPs

32

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

28.16 GPixel/s

Pixel Rate

25.60 GPixel/s

84.48 GTexel/s

Texture Rate

38.40 GTexel/s

-

2.703 TFLOPS

FP32 (float)

1.536 TFLOPS

-

Board Design

375W

TDP

254W

750 W

Suggested PSU

600 W

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

Outputs

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

3x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Antilles

GPU Name

Barts

Antilles XT (215-0807027)

GPU Variant

Barts PRO (215-0798006)

TeraScale 3

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.64 billion

Transistors

1.7 billion

389 mm²

Die Size

255 mm²

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

5.0

Shader Model

5.0

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