AMD Radeon Sky 500 vs AMD Radeon R9 270 1024SP

VS

AMD Radeon Sky 500

AMD Radeon R9 270 1024SP

We compared two Desktop platform GPUs: 4GB VRAM Radeon Sky 500 and 2GB VRAM Radeon R9 270 1024SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Sky 500 's Advantages

More VRAM (4GB vs 2GB)

256 additional rendering cores

AMD Radeon R9 270 1024SP 's Advantages

Released 2 years late

Boost Clock925MHz

Score

Benchmark

FP32 (float)

Radeon Sky 500 +28%

2.432 TFLOPS

Radeon R9 270 1024SP

1.894 TFLOPS

Radeon Sky 500

VS

Radeon R9 270 1024SP

Graphics Card

Mar 2013

Release Date

Mar 2015

Radeon Sky

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

925 MHz

1200 MHz

Memory Clock

1200 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

153.6GB/s

Render Config

20

Compute Units

16

-

1280

Shading Units

1024

80

TMUs

64

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

30.40 GPixel/s

Pixel Rate

29.60 GPixel/s

76.00 GTexel/s

Texture Rate

59.20 GTexel/s

-

2.432 TFLOPS

FP32 (float)

1.894 TFLOPS

152.0 GFLOPS

FP64 (double)

118.4 GFLOPS

Board Design

150W

TDP

150W

450 W

Suggested PSU

450 W

1x DisplayPort 1.2

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Pitcairn

GPU Name

Pitcairn

Pitcairn XT GL (215-0828073)

GPU Variant

Pitcairn PRO (215-0828062)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

2.8 billion

212 mm²

Die Size

212 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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