AMD Radeon Sky 500 vs AMD Radeon R7 250E

VS

AMD Radeon Sky 500

AMD Radeon R7 250E

We compared two Desktop platform GPUs: 4GB VRAM Radeon Sky 500 and 1024MB VRAM Radeon R7 250E 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 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 72.00GB/s)

768 additional rendering cores

AMD Radeon R7 250E 's Advantages

Released 9 months late

Lower TDP (55W vs 150W)

Score

Benchmark

FP32 (float)

Radeon Sky 500 +196%

2.432 TFLOPS

Radeon R7 250E

0.819 TFLOPS

Radeon Sky 500

VS

Radeon R7 250E

Graphics Card

Mar 2013

Release Date

Dec 2013

Radeon Sky

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

1125 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

72.00GB/s

Render Config

20

Compute Units

8

-

1280

Shading Units

512

80

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

30.40 GPixel/s

Pixel Rate

12.80 GPixel/s

76.00 GTexel/s

Texture Rate

25.60 GTexel/s

-

2.432 TFLOPS

FP32 (float)

819.2 GFLOPS

152.0 GFLOPS

FP64 (double)

51.20 GFLOPS

Board Design

150W

TDP

55W

450 W

Suggested PSU

250 W

1x DisplayPort 1.2

Outputs

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

1x 6-pin

Power Connectors

None

Graphics Processor

Pitcairn

GPU Name

Cape Verde

Pitcairn XT GL (215-0828073)

GPU Variant

Cape Verde PRO

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

1.5 billion

212 mm²

Die Size

123 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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