AMD Radeon HD 6950 vs ATI Radeon HD 5870 Mac Edition

VS

AMD Radeon HD 6950

ATI Radeon HD 5870 Mac Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6950 and 1024MB VRAM Radeon HD 5870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6950 's Advantages

Released 6 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (160.0GB/s vs 153.0GB/s)

Lower TDP (200W vs 228W)

ATI Radeon HD 5870 Mac Edition 's Advantages

192 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6950

2.253 TFLOPS

Radeon HD 5870 Mac Edition +20%

2.72 TFLOPS

Radeon HD 6950

VS

Radeon HD 5870 Mac Edition

Graphics Card

Dec 2010

Release Date

Jun 2010

Northern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

1195 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

153.0GB/s

Render Config

22

Compute Units

20

-

1408

Shading Units

1600

88

TMUs

80

32

ROPs

32

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

27.20 GPixel/s

70.40 GTexel/s

Texture Rate

68.00 GTexel/s

-

2.253 TFLOPS

FP32 (float)

2.720 TFLOPS

563.2 GFLOPS

FP64 (double)

544.0 GFLOPS

Board Design

200W

TDP

228W

550 W

Suggested PSU

550 W

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

Outputs

1x DVI 2x mini-DisplayPort 1.1

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Cayman

GPU Name

Cypress

Cayman PRO (215-0807019)

GPU Variant

Cypress XT (215-0735033)

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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