AMD Radeon HD 8970 OEM vs AMD Radeon Sky 700

VS

AMD Radeon HD 8970 OEM

AMD Radeon Sky 700

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 8970 OEM and 6GB VRAM Radeon Sky 700 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8970 OEM 's Advantages

256 additional rendering cores

AMD Radeon Sky 700 's Advantages

More VRAM (6GB vs 3GB)

Lower TDP (225W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 8970 OEM +17%

3.789 TFLOPS

Radeon Sky 700

3.226 TFLOPS

Radeon HD 8970 OEM

VS

Radeon Sky 700

Graphics Card

Jan 2013

Release Date

Mar 2013

Sea Islands

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1375 MHz

Memory

3GB

Memory Size

6GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

264.0GB/s

Bandwidth

264.0GB/s

Render Config

32

Compute Units

28

-

2048

Shading Units

1792

128

TMUs

112

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

768 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

28.80 GPixel/s

118.4 GTexel/s

Texture Rate

100.8 GTexel/s

-

3.789 TFLOPS

FP32 (float)

3.226 TFLOPS

947.2 GFLOPS

FP64 (double)

806.4 GFLOPS

Board Design

250W

TDP

225W

600 W

Suggested PSU

550 W

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

Outputs

1x DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Tahiti

GPU Name

Tahiti

Tahiti XT (215-0821060)

GPU Variant

Tahiti PRO GL

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

4.313 billion

352 mm²

Die Size

352 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

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