AMD Radeon R9 280 vs AMD Radeon Sky 700

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We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280 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 R9 280 's Advantages

Released 1 years late

Boost Clock933MHz

Lower TDP (200W vs 225W)

AMD Radeon Sky 700 's Advantages

More VRAM (6GB vs 3GB)

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

Score

Benchmark

FP32 (float)

Radeon R9 280 +3%

3.344 TFLOPS

Radeon Sky 700

3.226 TFLOPS

Radeon R9 280

VS

Radeon Sky 700

Graphics Card

Mar 2014

Release Date

Mar 2013

Volcanic Islands

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

827 MHz

Base Clock

-

933 MHz

Boost Clock

-

1250 MHz

Memory Clock

1375 MHz

Memory

3GB

Memory Size

6GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

240.0GB/s

Bandwidth

264.0GB/s

Render Config

-

SM Count

-

28

Compute Units

28

1792

Shading Units

1792

112

TMUs

112

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

29.86 GPixel/s

Pixel Rate

28.80 GPixel/s

104.5 GTexel/s

Texture Rate

100.8 GTexel/s

-

FP16 (half)

-

3.344 TFLOPS

FP32 (float)

3.226 TFLOPS

836.0 GFLOPS

FP64 (double)

806.4 GFLOPS

Graphics Processor

Tahiti

GPU Name

Tahiti

Tahiti PRO3 (215-0821330)

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

Board Design

200W

TDP

225W

550 W

Suggested PSU

550 W

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

Outputs

1x DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

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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