AMD Radeon HD 7950M vs AMD Radeon HD 8670A

VS

AMD Radeon HD 7950M

AMD Radeon HD 8670A

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7950M and 1024MB VRAM Radeon HD 8670A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950M 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (128.0GB/s vs 16.00GB/s)

896 additional rendering cores

AMD Radeon HD 8670A 's Advantages

Released 10 months late

Lower TDP (45W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 7950M +288%

1.792 TFLOPS

Radeon HD 8670A

0.461 TFLOPS

Radeon HD 7950M

VS

Radeon HD 8670A

Graphics Card

Apr 2012

Release Date

Feb 2013

London

Generation

All-In-One

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-A (3.0)

Clock Speeds

-

1000 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

128.0GB/s

Bandwidth

16.00GB/s

Render Config

20

Compute Units

6

-

1280

Shading Units

384

80

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

22.40 GPixel/s

Pixel Rate

4.800 GPixel/s

56.00 GTexel/s

Texture Rate

14.40 GTexel/s

-

1.792 TFLOPS

FP32 (float)

460.8 GFLOPS

-

FP64 (double)

28.80 GFLOPS

Board Design

75W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Wimbledon

GPU Name

Mars

Wimbledon PRO

GPU Variant

Mars XT

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

0.95 billion

212 mm²

Die Size

77 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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