AMD Radeon Sky 900 vs AMD Radeon RX 580

VS

AMD Radeon Sky 900

AMD Radeon RX 580

We compared two Desktop platform GPUs: 3GB VRAM Radeon Sky 900 and 8GB VRAM Radeon RX 580 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580 's Advantages

Released 4 years and 1 months late

Boost Clock has increased by 41% (1340MHz vs 950MHz)

More VRAM (8GB vs 3GB)

Larger VRAM bandwidth (256.0GB/s vs 240.0GB/s)

512 additional rendering cores

Lower TDP (185W vs 300W)

Score

Benchmark

FP32 (float)

Radeon Sky 900

3.405 TFLOPS

Radeon RX 580 +81%

6.175 TFLOPS

Radeon Sky 900

VS

Radeon RX 580

Graphics Card

Mar 2013

Release Date

Apr 2017

Radeon Sky

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

825 MHz

Base Clock

1257 MHz

950 MHz

Boost Clock

1340 MHz

1250 MHz

Memory Clock

2000 MHz

Memory

3GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

240.0GB/s

Bandwidth

256.0GB/s

Render Config

28

Compute Units

36

-

1792

Shading Units

2304

112

TMUs

144

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

2 MB

-

Theoretical Performance

30.40 GPixel/s

Pixel Rate

42.88 GPixel/s

106.4 GTexel/s

Texture Rate

193.0 GTexel/s

-

FP16 (half)

6.175 TFLOPS

3.405 TFLOPS

FP32 (float)

6.175 TFLOPS

851.2 GFLOPS

FP64 (double)

385.9 GFLOPS

Board Design

300W

TDP

185W

700 W

Suggested PSU

450 W

1x DVI 1x mini-DisplayPort 1.2

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Tahiti

GPU Name

Polaris 20

Orthrus

GPU Variant

Polaris 20 XTX (215-0910038)

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

4.313 billion

Transistors

5.7 billion

352 mm²

Die Size

232 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.2

-

5.1

Shader Model

6.4

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