AMD Radeon Sky 900 vs AMD Radeon R7 260X

VS

AMD Radeon Sky 900

AMD Radeon R7 260X

We compared two Desktop platform GPUs: 3GB VRAM Radeon Sky 900 and 2GB VRAM Radeon R7 260X 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

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (240.0GB/s vs 104.0GB/s)

896 additional rendering cores

AMD Radeon R7 260X 's Advantages

Released 7 months late

Lower TDP (115W vs 300W)

Score

Benchmark

FP32 (float)

Radeon Sky 900 +72%

3.405 TFLOPS

Radeon R7 260X

1.971 TFLOPS

Radeon Sky 900

VS

Radeon R7 260X

Graphics Card

Mar 2013

Release Date

Oct 2013

Radeon Sky

Generation

Volcanic 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

1625 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

240.0GB/s

Bandwidth

104.0GB/s

Render Config

28

Compute Units

14

-

1792

Shading Units

896

112

TMUs

56

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

30.40 GPixel/s

Pixel Rate

17.60 GPixel/s

106.4 GTexel/s

Texture Rate

61.60 GTexel/s

-

3.405 TFLOPS

FP32 (float)

1.971 TFLOPS

851.2 GFLOPS

FP64 (double)

123.2 GFLOPS

Board Design

300W

TDP

115W

700 W

Suggested PSU

300 W

1x DVI 1x mini-DisplayPort 1.2

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Tahiti

GPU Name

Bonaire

Orthrus

GPU Variant

Bonaire XTX (215-0839097)

GCN 1.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

2.08 billion

352 mm²

Die Size

160 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.0

1.2

Vulkan

1.2

-

5.1

Shader Model

6.3

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