AMD Radeon Sky 900 vs AMD Radeon R9 280

VS

AMD Radeon Sky 900

AMD Radeon R9 280

We compared two Desktop platform GPUs: 3GB VRAM Radeon Sky 900 and 3GB VRAM Radeon R9 280 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Sky 900 's Advantages

Boost Clock has increased by 2% (950MHz vs 933MHz)

AMD Radeon R9 280 's Advantages

Released 1 years late

Lower TDP (200W vs 300W)

Score

Benchmark

FP32 (float)

Radeon Sky 900 +1%

3.405 TFLOPS

Radeon R9 280

3.344 TFLOPS

Radeon Sky 900

VS

Radeon R9 280

Graphics Card

Mar 2013

Release Date

Mar 2014

Radeon Sky

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

825 MHz

Base Clock

827 MHz

950 MHz

Boost Clock

933 MHz

1250 MHz

Memory Clock

1250 MHz

Memory

3GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

240.0GB/s

Bandwidth

240.0GB/s

Render Config

28

Compute Units

28

-

1792

Shading Units

1792

112

TMUs

112

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

768 KB

-

Theoretical Performance

30.40 GPixel/s

Pixel Rate

29.86 GPixel/s

106.4 GTexel/s

Texture Rate

104.5 GTexel/s

-

3.405 TFLOPS

FP32 (float)

3.344 TFLOPS

851.2 GFLOPS

FP64 (double)

836.0 GFLOPS

Board Design

300W

TDP

200W

700 W

Suggested PSU

550 W

1x DVI 1x mini-DisplayPort 1.2

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Tahiti

GPU Name

Tahiti

Orthrus

GPU Variant

Tahiti PRO3 (215-0821330)

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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