AMD Radeon HD 6970 X2 vs AMD Radeon HD 6850 1440SP Edition

VS

AMD Radeon HD 6970 X2

AMD Radeon HD 6850 1440SP Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 X2 and 1024MB VRAM Radeon HD 6850 1440SP Edition 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 1024GB)

Larger VRAM bandwidth (176.0GB/s vs 128.0GB/s)

96 additional rendering cores

AMD Radeon HD 6850 1440SP Edition 's Advantages

Lower TDP (151W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6970 X2 +29%

2.703 TFLOPS

Radeon HD 6850 1440SP Edition

2.088 TFLOPS

Radeon HD 6970 X2

VS

Radeon HD 6850 1440SP Edition

Graphics Card

Unknown

Release Date

Aug 2012

Northern Islands

Generation

Northern Islands

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

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

176.0GB/s

Bandwidth

128.0GB/s

Render Config

24

Compute Units

18

-

1536

Shading Units

1440

96

TMUs

72

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

23.20 GPixel/s

84.48 GTexel/s

Texture Rate

52.20 GTexel/s

-

2.703 TFLOPS

FP32 (float)

2.088 TFLOPS

-

FP64 (double)

417.6 GFLOPS

Board Design

375W

TDP

151W

750 W

Suggested PSU

450 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 6-pin

Graphics Processor

Antilles

GPU Name

Cypress

Antilles XT (215-0807027)

GPU Variant

Cypress PRO (215-0735043)

TeraScale 3

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.64 billion

Transistors

2.154 billion

389 mm²

Die Size

334 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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