AMD Radeon HD 7670M vs ATI Mobility Radeon HD 4870 X2

VS

AMD Radeon HD 7670M

ATI Mobility Radeon HD 4870 X2

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 7670M and 1024MB VRAM Mobility Radeon HD 4870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7670M 's Advantages

Released 3 years and 1 months late

ATI Mobility Radeon HD 4870 X2 's Advantages

Larger VRAM bandwidth (89.60GB/s vs 28.80GB/s)

320 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7670M

0.576 TFLOPS

Mobility Radeon HD 4870 X2 +52%

0.88 TFLOPS

Radeon HD 7670M

VS

Mobility Radeon HD 4870 X2

Graphics Card

Feb 2012

Release Date

Jan 2009

London

Generation

M9x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

700 MHz

Memory

1024MB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

28.80GB/s

Bandwidth

89.60GB/s

Render Config

6

Compute Units

10

-

480

Shading Units

800

24

TMUs

40

16

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

9.600 GPixel/s

Pixel Rate

8.800 GPixel/s

14.40 GTexel/s

Texture Rate

22.00 GTexel/s

-

576.0 GFLOPS

FP32 (float)

880.0 GFLOPS

-

FP64 (double)

176.0 GFLOPS

Board Design

20W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

Thames

GPU Name

M98

Thames XT (216-0833000)

GPU Variant

M98 XT L2 (216-0732023)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.716 billion

Transistors

0.956 billion

104 mm²

Die Size

256 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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