AMD Radeon HD 6950M vs NVIDIA GeForce 8400M GT

VS

AMD Radeon HD 6950M

NVIDIA GeForce 8400M GT

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6950M and 512MB VRAM GeForce 8400M GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6950M 's Advantages

Released 3 years and 8 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (115.2GB/s vs 19.20GB/s)

944 additional rendering cores

NVIDIA GeForce 8400M GT 's Advantages

Lower TDP (14W vs 50W)

Score

Benchmark

FP32 (float)

Radeon HD 6950M +3741%

1.114 TFLOPS

GeForce 8400M GT

0.029 TFLOPS

Radeon HD 6950M

VS

GeForce 8400M GT

Graphics Card

Jan 2011

Release Date

May 2007

Vancouver

Generation

GeForce 8M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

900 MHz

Memory Clock

600 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

19.20GB/s

Render Config

12

Compute Units

-

SM Count

2

960

Shading Units

16

48

TMUs

8

32

ROPs

4

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

32 KB

-

Theoretical Performance

18.56 GPixel/s

Pixel Rate

1.800 GPixel/s

27.84 GTexel/s

Texture Rate

3.600 GTexel/s

-

1114 GFLOPS

FP32 (float)

28.80 GFLOPS

-

Board Design

50W

TDP

14W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Blackcomb

GPU Name

G86

Blackcomb PRO

GPU Variant

G86-603-A2

TeraScale 2

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

1.7 billion

Transistors

0.21 billion

212 mm²

Die Size

127 mm²

Graphics Features

11.2 (11_0)

DirectX

11.1 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.1

5.0

Shader Model

4.0

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