ATI Mobility Radeon HD 4670 vs AMD Radeon HD 6950M

VS

ATI Mobility Radeon HD 4670

AMD Radeon HD 6950M

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 4670 and 1024MB VRAM Radeon HD 6950M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4670 's Advantages

Lower TDP (35W vs 50W)

AMD Radeon HD 6950M 's Advantages

Released 2 years late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (115.2GB/s vs 25.60GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4670

0.432 TFLOPS

Radeon HD 6950M +157%

1.114 TFLOPS

Mobility Radeon HD 4670

VS

Radeon HD 6950M

Graphics Card

Jan 2009

Release Date

Jan 2011

M9x

Generation

Vancouver

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

800 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

25.60GB/s

Bandwidth

115.2GB/s

Render Config

4

Compute Units

12

-

320

Shading Units

960

32

TMUs

48

8

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

5.400 GPixel/s

Pixel Rate

18.56 GPixel/s

21.60 GTexel/s

Texture Rate

27.84 GTexel/s

-

432.0 GFLOPS

FP32 (float)

1114 GFLOPS

-

Board Design

35W

TDP

50W

-

No outputs

Outputs

No outputs

-

Graphics Processor

M96

GPU Name

Blackcomb

M96 XT (216-0729051)

GPU Variant

Blackcomb PRO

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.514 billion

Transistors

1.7 billion

146 mm²

Die Size

212 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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