AMD Radeon Sky 500 vs AMD Radeon HD 7950 Boost

VS

AMD Radeon Sky 500

AMD Radeon HD 7950 Boost

We compared two Desktop platform GPUs: 4GB VRAM Radeon Sky 500 and 3GB VRAM Radeon HD 7950 Boost to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Sky 500 's Advantages

Released 9 months late

More VRAM (4GB vs 3GB)

Lower TDP (150W vs 200W)

AMD Radeon HD 7950 Boost 's Advantages

Boost Clock925MHz

Larger VRAM bandwidth (240.0GB/s vs 153.6GB/s)

512 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Sky 500

2.432 TFLOPS

Radeon HD 7950 Boost +36%

3.315 TFLOPS

Radeon Sky 500

VS

Radeon HD 7950 Boost

Graphics Card

Mar 2013

Release Date

Jun 2012

Radeon Sky

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

850 MHz

-

Boost Clock

925 MHz

1200 MHz

Memory Clock

1250 MHz

Memory

4GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

153.6GB/s

Bandwidth

240.0GB/s

Render Config

20

Compute Units

28

-

1280

Shading Units

1792

80

TMUs

112

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

768 KB

-

Theoretical Performance

30.40 GPixel/s

Pixel Rate

29.60 GPixel/s

76.00 GTexel/s

Texture Rate

103.6 GTexel/s

-

2.432 TFLOPS

FP32 (float)

3.315 TFLOPS

152.0 GFLOPS

FP64 (double)

828.8 GFLOPS

Board Design

150W

TDP

200W

450 W

Suggested PSU

550 W

1x DisplayPort 1.2

Outputs

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

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Pitcairn

GPU Name

Tahiti

Pitcairn XT GL (215-0828073)

GPU Variant

Tahiti PRO2 (215-0821282)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

4.313 billion

212 mm²

Die Size

352 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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