AMD Radeon HD 7950M vs AMD Radeon HD 6670A

VS

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7950M and 1024MB VRAM Radeon HD 6670A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950M 's Advantages

Released 1 years late

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (128.0GB/s vs 64.00GB/s)

800 additional rendering cores

AMD Radeon HD 6670A 's Advantages

Lower TDP (45W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 7950M +211%

1.792 TFLOPS

Radeon HD 6670A

0.576 TFLOPS

Radeon HD 7950M

VS

Radeon HD 6670A

Graphics Card

Apr 2012

Release Date

Apr 2011

London

Generation

All-In-One

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-A (3.0)

Clock Speeds

-

Base Clock

-

Boost Clock

-

1000 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

128.0GB/s

Bandwidth

64.00GB/s

Render Config

-

SM Count

-

20

Compute Units

6

1280

Shading Units

480

80

TMUs

24

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

22.40 GPixel/s

Pixel Rate

4.800 GPixel/s

56.00 GTexel/s

Texture Rate

14.40 GTexel/s

-

FP16 (half)

-

1.792 TFLOPS

FP32 (float)

576.0 GFLOPS

-

FP64 (double)

-

Graphics Processor

Wimbledon

GPU Name

Turks

Wimbledon PRO

GPU Variant

Turks XT (215-0803000)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

0.716 billion

212 mm²

Die Size

118 mm²

Board Design

75W

TDP

45W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

5.0

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