AMD Radeon Sky 700 vs AMD Radeon HD 6970

VS

AMD Radeon Sky 700

AMD Radeon HD 6970

We compared two Desktop platform GPUs: 6GB VRAM Radeon Sky 700 and 2GB VRAM Radeon HD 6970 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Sky 700 's Advantages

Released 2 years and 3 months late

More VRAM (6GB vs 2GB)

Larger VRAM bandwidth (264.0GB/s vs 176.0GB/s)

256 additional rendering cores

Lower TDP (225W vs 250W)

Score

Benchmark

FP32 (float)

Radeon Sky 700 +19%

3.226 TFLOPS

Radeon HD 6970

2.703 TFLOPS

Radeon Sky 700

VS

Radeon HD 6970

Graphics Card

Mar 2013

Release Date

Dec 2010

Radeon Sky

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1375 MHz

Memory

6GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

264.0GB/s

Bandwidth

176.0GB/s

Render Config

28

Compute Units

24

-

1792

Shading Units

1536

112

TMUs

96

32

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

512 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

28.16 GPixel/s

100.8 GTexel/s

Texture Rate

84.48 GTexel/s

-

3.226 TFLOPS

FP32 (float)

2.703 TFLOPS

806.4 GFLOPS

FP64 (double)

675.8 GFLOPS

Board Design

225W

TDP

250W

550 W

Suggested PSU

600 W

1x DisplayPort 1.2

Outputs

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

1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Tahiti

GPU Name

Cayman

Tahiti PRO GL

GPU Variant

Cayman XT (215-0807007)

GCN 1.0

Architecture

TeraScale 3

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

2.64 billion

352 mm²

Die Size

389 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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