AMD Radeon HD 6970 vs ATI Radeon HD 5770 Mac Edition

VS

AMD Radeon HD 6970

ATI Radeon HD 5770 Mac Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 and 1024MB VRAM Radeon HD 5770 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6970 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (176.0GB/s vs 76.48GB/s)

736 additional rendering cores

ATI Radeon HD 5770 Mac Edition 's Advantages

Lower TDP (108W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 6970 +98%

2.703 TFLOPS

Radeon HD 5770 Mac Edition

1.36 TFLOPS

Radeon HD 6970

VS

Radeon HD 5770 Mac Edition

Graphics Card

Dec 2010

Release Date

Jul 2010

Northern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1195 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

176.0GB/s

Bandwidth

76.48GB/s

Render Config

24

Compute Units

10

-

1536

Shading Units

800

96

TMUs

40

32

ROPs

16

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

28.16 GPixel/s

Pixel Rate

13.60 GPixel/s

84.48 GTexel/s

Texture Rate

34.00 GTexel/s

-

2.703 TFLOPS

FP32 (float)

1360 GFLOPS

675.8 GFLOPS

FP64 (double)

-

Board Design

250W

TDP

108W

600 W

Suggested PSU

300 W

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

Outputs

1x DVI 1x DisplayPort 1.1

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Cayman

GPU Name

Juniper

Cayman XT (215-0807007)

GPU Variant

Juniper XT (215-0754013)

TeraScale 3

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.64 billion

Transistors

1.04 billion

389 mm²

Die Size

166 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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