AMD Radeon Sky 500 vs AMD Radeon R7 250 OEM

VS

AMD Radeon Sky 500

AMD Radeon R7 250 OEM

We compared two Desktop platform GPUs: 4GB VRAM Radeon Sky 500 and 2GB VRAM Radeon R7 250 OEM 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)

Larger VRAM bandwidth (153.6GB/s vs 32.00GB/s)

896 additional rendering cores

AMD Radeon R7 250 OEM 's Advantages

Released 7 months late

Boost Clock1050MHz

Lower TDP (65W vs 150W)

Score

Benchmark

FP32 (float)

Radeon Sky 500 +201%

2.432 TFLOPS

Radeon R7 250 OEM

0.806 TFLOPS

Radeon Sky 500

VS

Radeon R7 250 OEM

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 x8

Clock Speeds

-

Base Clock

1000 MHz

-

Boost Clock

1050 MHz

1200 MHz

Memory Clock

1000 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

32.00GB/s

Render Config

20

Compute Units

6

-

1280

Shading Units

384

80

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

30.40 GPixel/s

Pixel Rate

8.400 GPixel/s

76.00 GTexel/s

Texture Rate

25.20 GTexel/s

-

2.432 TFLOPS

FP32 (float)

806.4 GFLOPS

152.0 GFLOPS

FP64 (double)

50.40 GFLOPS

Board Design

150W

TDP

65W

450 W

Suggested PSU

250 W

1x DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

Pitcairn

GPU Name

Oland

Pitcairn XT GL (215-0828073)

GPU Variant

Oland XT (215-0837000)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

0.95 billion

212 mm²

Die Size

77 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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