AMD Radeon HD 7670 OEM vs AMD Radeon HD 7950 Mac Edition

VS

AMD Radeon HD 7670 OEM

AMD Radeon HD 7950 Mac Edition

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 7670 OEM and 3GB VRAM Radeon HD 7950 Mac Edition 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 200W)

AMD Radeon HD 7950 Mac Edition 's Advantages

Released 1 years and 2 months late

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (240.0GB/s vs 64.00GB/s)

1312 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7670 OEM

0.768 TFLOPS

Radeon HD 7950 Mac Edition +273%

2.867 TFLOPS

Radeon HD 7670 OEM

VS

Radeon HD 7950 Mac Edition

Graphics Card

Jan 2012

Release Date

Mar 2013

Southern Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1250 MHz

Memory

512MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

64.00GB/s

Bandwidth

240.0GB/s

Render Config

6

Compute Units

28

-

480

Shading Units

1792

24

TMUs

112

8

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

-

Theoretical Performance

6.400 GPixel/s

Pixel Rate

25.60 GPixel/s

19.20 GTexel/s

Texture Rate

89.60 GTexel/s

-

768.0 GFLOPS

FP32 (float)

2.867 TFLOPS

-

FP64 (double)

716.8 GFLOPS

Board Design

66W

TDP

200W

250 W

Suggested PSU

550 W

1x DVI 1x DisplayPort 1.1 1x VGA

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

Turks

GPU Name

Tahiti

Turks XT (215-0803000)

GPU Variant

Tahiti PRO (215-0821056)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

4.313 billion

118 mm²

Die Size

352 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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