AMD Radeon HD 7670 OEM vs AMD Radeon Sky 500

VS

AMD Radeon HD 7670 OEM

AMD Radeon Sky 500

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 7670 OEM and 4GB VRAM Radeon Sky 500 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7670 OEM 's Advantages

Lower TDP (66W vs 150W)

AMD Radeon Sky 500 's Advantages

Released 1 years and 2 months late

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (153.6GB/s vs 64.00GB/s)

800 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7670 OEM

0.768 TFLOPS

Radeon Sky 500 +216%

2.432 TFLOPS

Radeon HD 7670 OEM

VS

Radeon Sky 500

Graphics Card

Jan 2012

Release Date

Mar 2013

Southern Islands

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1200 MHz

Memory

512MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

64.00GB/s

Bandwidth

153.6GB/s

Render Config

6

Compute Units

20

-

480

Shading Units

1280

24

TMUs

80

8

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

6.400 GPixel/s

Pixel Rate

30.40 GPixel/s

19.20 GTexel/s

Texture Rate

76.00 GTexel/s

-

768.0 GFLOPS

FP32 (float)

2.432 TFLOPS

-

FP64 (double)

152.0 GFLOPS

Board Design

66W

TDP

150W

250 W

Suggested PSU

450 W

1x DVI 1x DisplayPort 1.1 1x VGA

Outputs

1x DisplayPort 1.2

None

Power Connectors

1x 6-pin

Graphics Processor

Turks

GPU Name

Pitcairn

Turks XT (215-0803000)

GPU Variant

Pitcairn XT GL (215-0828073)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

2.8 billion

118 mm²

Die Size

212 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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