AMD Radeon HD 6970M vs NVIDIA GeForce 8400M GS

VS

AMD Radeon HD 6970M

NVIDIA GeForce 8400M GS

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6970M and 256MB VRAM GeForce 8400M GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6970M 's Advantages

Released 3 years and 8 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (115.2GB/s vs 6.400GB/s)

944 additional rendering cores

NVIDIA GeForce 8400M GS 's Advantages

Lower TDP (11W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 6970M +4923%

1.306 TFLOPS

GeForce 8400M GS

0.026 TFLOPS

Radeon HD 6970M

VS

GeForce 8400M GS

Graphics Card

Jan 2011

Release Date

May 2007

Vancouver

Generation

GeForce 8M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-I

Clock Speeds

-

900 MHz

Memory Clock

400 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

115.2GB/s

Bandwidth

6.400GB/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

16 KB

-

Theoretical Performance

21.76 GPixel/s

Pixel Rate

1.600 GPixel/s

32.64 GTexel/s

Texture Rate

3.200 GTexel/s

-

1306 GFLOPS

FP32 (float)

25.60 GFLOPS

-

Board Design

75W

TDP

11W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Blackcomb

GPU Name

G86

Blackcomb XT (216-0811000)

GPU Variant

NB8M-GS

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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