AMD Radeon HD 6970 vs AMD Radeon HD 7770 GHz Edition

VS

AMD Radeon HD 6970 AMD Radeon HD 7770 GHz Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 and 1024MB VRAM Radeon HD 7770 GHz 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 1GB)

Larger VRAM bandwidth (176.0GB/s vs 72.00GB/s)

896 additional rendering cores

AMD Radeon HD 7770 GHz Edition 's Advantages

Released 1 years and 2 months late

Lower TDP (80W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 6970 +111%

2.703 TFLOPS

Radeon HD 7770 GHz Edition

1.28 TFLOPS

Radeon HD 6970

VS

Radeon HD 7770 GHz Edition

Graphics Card

Dec 2010

Release Date

Feb 2012

Northern Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1375 MHz

Memory Clock

1125 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

176.0GB/s

Bandwidth

72.00GB/s

Render Config

-

SM Count

-

24

Compute Units

10

1536

Shading Units

640

96

TMUs

40

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

28.16 GPixel/s

Pixel Rate

16.00 GPixel/s

84.48 GTexel/s

Texture Rate

40.00 GTexel/s

-

FP16 (half)

-

2.703 TFLOPS

FP32 (float)

1280 GFLOPS

675.8 GFLOPS

FP64 (double)

80.00 GFLOPS

Graphics Processor

Cayman

GPU Name

Cape Verde

Cayman XT (215-0807007)

GPU Variant

Cape Verde XT

TeraScale 3

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.64 billion

Transistors

1.5 billion

389 mm²

Die Size

123 mm²

Board Design

250W

TDP

80W

600 W

Suggested PSU

250 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

CUDA

-

5.0

Shader Model

5.1

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