ATI Radeon HD 5970 vs AMD Radeon HD 6950

VS

ATI Radeon HD 5970

AMD Radeon HD 6950

We compared two Desktop platform GPUs: 1024MB VRAM ATI Radeon HD 5970 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 5970 's Advantages

192 additional rendering cores

AMD Radeon HD 6950 's Advantages

Released 1 years and 1 months late

More VRAM (2GB vs 1024GB)

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

Lower TDP (200W vs 294W)

Score

Benchmark

FP32 (float)

ATI Radeon HD 5970 +2%

2.32 TFLOPS

Radeon HD 6950

2.253 TFLOPS

ATI Radeon HD 5970

VS

Radeon HD 6950

Graphics Card

Nov 2009

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

256bit

Memory Bus

256bit

128.0GB/s

Bandwidth

160.0GB/s

Render Config

20

Compute Units

22

-

1600

Shading Units

1408

80

TMUs

88

32

ROPs

32

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

23.20 GPixel/s

Pixel Rate

25.60 GPixel/s

58.00 GTexel/s

Texture Rate

70.40 GTexel/s

-

2.320 TFLOPS

FP32 (float)

2.253 TFLOPS

464.0 GFLOPS

FP64 (double)

563.2 GFLOPS

Board Design

294W

TDP

200W

600 W

Suggested PSU

550 W

2x DVI 1x mini-DisplayPort 1.1

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Hemlock

GPU Name

Cayman

Hemlock XT (215-0735075)

GPU Variant

Cayman PRO (215-0807019)

TeraScale 2

Architecture

TeraScale 3

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.154 billion

Transistors

2.64 billion

334 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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