AMD Radeon Sky 900 vs AMD Radeon HD 8970 OEM

VS

AMD Radeon Sky 900 AMD Radeon HD 8970 OEM

We compared two Desktop platform GPUs: 3GB VRAM Radeon Sky 900 and 3GB VRAM Radeon HD 8970 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Sky 900 's Advantages

Boost Clock950MHz

AMD Radeon HD 8970 OEM 's Advantages

Larger VRAM bandwidth (264.0GB/s vs 240.0GB/s)

256 additional rendering cores

Lower TDP (250W vs 300W)

Score

Benchmark

FP32 (float)

Radeon Sky 900

3.405 TFLOPS

Radeon HD 8970 OEM +11%

3.789 TFLOPS

Radeon Sky 900

VS

Radeon HD 8970 OEM

Graphics Card

Mar 2013

Release Date

Jan 2013

Radeon Sky

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

825 MHz

Base Clock

-

950 MHz

Boost Clock

-

1250 MHz

Memory Clock

1375 MHz

Memory

3GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

240.0GB/s

Bandwidth

264.0GB/s

Render Config

-

SM Count

-

28

Compute Units

32

1792

Shading Units

2048

112

TMUs

128

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

768 KB

Theoretical Performance

30.40 GPixel/s

Pixel Rate

29.60 GPixel/s

106.4 GTexel/s

Texture Rate

118.4 GTexel/s

-

FP16 (half)

-

3.405 TFLOPS

FP32 (float)

3.789 TFLOPS

851.2 GFLOPS

FP64 (double)

947.2 GFLOPS

Graphics Processor

Tahiti

GPU Name

Tahiti

Orthrus

GPU Variant

Tahiti XT (215-0821060)

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

Board Design

300W

TDP

250W

700 W

Suggested PSU

600 W

1x DVI 1x mini-DisplayPort 1.2

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

5.1

Shader Model

5.1

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