AMD Radeon HD 6950 vs AMD Radeon HD 6850

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6950 and 1024MB VRAM Radeon HD 6850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6950 's Advantages

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (160.0GB/s vs 128.0GB/s)

448 additional rendering cores

AMD Radeon HD 6850 's Advantages

Lower TDP (127W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 6950 +51%

2.253 TFLOPS

Radeon HD 6850

1.488 TFLOPS

Radeon HD 6950

VS

Radeon HD 6850

Graphics Card

Dec 2010

Release Date

Oct 2010

Northern Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

128.0GB/s

Render Config

-

SM Count

-

22

Compute Units

12

1408

Shading Units

960

88

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

25.60 GPixel/s

Pixel Rate

24.80 GPixel/s

70.40 GTexel/s

Texture Rate

37.20 GTexel/s

-

FP16 (half)

-

2.253 TFLOPS

FP32 (float)

1488 GFLOPS

563.2 GFLOPS

FP64 (double)

-

Graphics Processor

Cayman

GPU Name

Barts

Cayman PRO (215-0807019)

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

200W

TDP

127W

550 W

Suggested PSU

300 W

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

Outputs

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

2x 6-pin

Power Connectors

1x 6-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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