AMD Radeon Sky 900 vs AMD Radeon R9 290X2

VS

AMD Radeon Sky 900

AMD Radeon R9 290X2

We compared two Desktop platform GPUs: 3GB VRAM Radeon Sky 900 and 4GB VRAM Radeon R9 290X2 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

Lower TDP (300W vs 580W)

AMD Radeon R9 290X2 's Advantages

Released 1 years and 3 months late

More VRAM (4GB vs 3GB)

Larger VRAM bandwidth (345.6GB/s vs 240.0GB/s)

1024 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Sky 900

3.405 TFLOPS

Radeon R9 290X2 +65%

5.632 TFLOPS

Radeon Sky 900

VS

Radeon R9 290X2

Graphics Card

Mar 2013

Release Date

Jun 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

-

950 MHz

Boost Clock

-

1250 MHz

Memory Clock

1350 MHz

Memory

3GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

512bit

240.0GB/s

Bandwidth

345.6GB/s

Render Config

28

Compute Units

44

-

1792

Shading Units

2816

112

TMUs

176

32

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

1024 KB

-

Theoretical Performance

30.40 GPixel/s

Pixel Rate

64.00 GPixel/s

106.4 GTexel/s

Texture Rate

176.0 GTexel/s

-

3.405 TFLOPS

FP32 (float)

5.632 TFLOPS

851.2 GFLOPS

FP64 (double)

704.0 GFLOPS

Board Design

300W

TDP

580W

700 W

Suggested PSU

950 W

1x DVI 1x mini-DisplayPort 1.2

Outputs

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

2x 8-pin

Power Connectors

4x 8-pin

Graphics Processor

Tahiti

GPU Name

Hawaii

Orthrus

GPU Variant

Hawaii XT (215-0852000)

GCN 1.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

6.2 billion

352 mm²

Die Size

438 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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