AMD Radeon HD 6970 vs AMD Radeon HD 6850 X2

VS

AMD Radeon HD 6970 AMD Radeon HD 6850 X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 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 's Advantages

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

576 additional rendering cores

Lower TDP (250W vs 254W)

AMD Radeon HD 6850 X2 's Advantages

Released 9 months late

Score

Benchmark

FP32 (float)

Radeon HD 6970 +75%

2.703 TFLOPS

Radeon HD 6850 X2

1.536 TFLOPS

Radeon HD 6970

VS

Radeon HD 6850 X2

Graphics Card

Dec 2010

Release Date

Sep 2011

Northern Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

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

-

SM Count

-

24

Compute Units

12

1536

Shading Units

960

96

TMUs

48

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

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

-

FP16 (half)

-

2.703 TFLOPS

FP32 (float)

1.536 TFLOPS

675.8 GFLOPS

FP64 (double)

-

Graphics Processor

Cayman

GPU Name

Barts

Cayman XT (215-0807007)

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

Board Design

250W

TDP

254W

600 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

1x 6-pin + 1x 8-pin

Power Connectors

2x 8-pin

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

-

CUDA

-

5.0

Shader Model

5.0

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