ATI Radeon HD 5670 vs AMD Radeon HD 6950

VS

ATI Radeon HD 5670

AMD Radeon HD 6950

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 5670 and 2GB VRAM Radeon HD 6950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5670 's Advantages

Lower TDP (64W vs 200W)

AMD Radeon HD 6950 's Advantages

Released 11 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (160.0GB/s vs 64.00GB/s)

1008 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 5670

0.62 TFLOPS

Radeon HD 6950 +263%

2.253 TFLOPS

Radeon HD 5670

VS

Radeon HD 6950

Graphics Card

Jan 2010

Release Date

Dec 2010

Evergreen

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

64.00GB/s

Bandwidth

160.0GB/s

Render Config

5

Compute Units

22

-

400

Shading Units

1408

20

TMUs

88

8

ROPs

32

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

6.200 GPixel/s

Pixel Rate

25.60 GPixel/s

15.50 GTexel/s

Texture Rate

70.40 GTexel/s

-

620.0 GFLOPS

FP32 (float)

2.253 TFLOPS

-

FP64 (double)

563.2 GFLOPS

Board Design

64W

TDP

200W

250 W

Suggested PSU

550 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

Redwood

GPU Name

Cayman

Redwood XT (215-0757002)

GPU Variant

Cayman PRO (215-0807019)

TeraScale 2

Architecture

TeraScale 3

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.627 billion

Transistors

2.64 billion

104 mm²

Die Size

389 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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