AMD Radeon HD 6970M Mac Edition vs NVIDIA GeForce 8400M GS

VS

AMD Radeon HD 6970M Mac Edition NVIDIA GeForce 8400M GS

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6970M Mac Edition 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 Mac Edition 's Advantages

Released 4 years and 3 months late

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 Mac Edition +4923%

1.306 TFLOPS

GeForce 8400M GS

0.026 TFLOPS

Radeon HD 6970M Mac Edition

VS

GeForce 8400M GS

Graphics Card

Aug 2011

Release Date

May 2007

Vancouver

Generation

GeForce 8M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-I

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

115.2GB/s

Bandwidth

6.400GB/s

Render Config

-

SM Count

2

12

Compute Units

-

960

Shading Units

16

48

TMUs

8

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

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

-

FP16 (half)

-

1306 GFLOPS

FP32 (float)

25.60 GFLOPS

-

FP64 (double)

-

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

Board Design

75W

TDP

11W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

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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