AMD Radeon HD 7670M vs AMD Radeon HD 7970M

VS

AMD Radeon HD 7670M

AMD Radeon HD 7970M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 7670M and 2GB VRAM Radeon HD 7970M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7670M 's Advantages

Lower TDP (20W vs 100W)

AMD Radeon HD 7970M 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 28.80GB/s)

800 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7670M

0.576 TFLOPS

Radeon HD 7970M +277%

2.176 TFLOPS

Radeon HD 7670M

VS

Radeon HD 7970M

Graphics Card

Feb 2012

Release Date

Apr 2012

London

Generation

London

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

900 MHz

Memory Clock

1200 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

28.80GB/s

Bandwidth

153.6GB/s

Render Config

6

Compute Units

20

-

480

Shading Units

1280

24

TMUs

80

16

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

9.600 GPixel/s

Pixel Rate

27.20 GPixel/s

14.40 GTexel/s

Texture Rate

68.00 GTexel/s

-

576.0 GFLOPS

FP32 (float)

2.176 TFLOPS

-

FP64 (double)

136.0 GFLOPS

Board Design

20W

TDP

100W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Thames

GPU Name

Wimbledon

Thames XT (216-0833000)

GPU Variant

Wimbledon XT (216-0836036)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

2.8 billion

104 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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