NVIDIA GeForce 8400M GS vs AMD Radeon HD 6490M Mac Edition

VS

NVIDIA GeForce 8400M GS

AMD Radeon HD 6490M Mac Edition

We compared two Mobile platform GPUs: 256MB VRAM GeForce 8400M GS and 256MB VRAM Radeon HD 6490M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6490M Mac Edition 's Advantages

Released 4 years late

Larger VRAM bandwidth (25.41GB/s vs 6.400GB/s)

144 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400M GS

0.026 TFLOPS

Radeon HD 6490M Mac Edition +823%

0.24 TFLOPS

GeForce 8400M GS

VS

Radeon HD 6490M Mac Edition

Graphics Card

May 2007

Release Date

May 2011

GeForce 8M

Generation

Vancouver

Mobile

Type

Mobile

MXM-I

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

400 MHz

Memory Clock

794 MHz

Memory

256MB

Memory Size

256MB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

64bit

6.400GB/s

Bandwidth

25.41GB/s

Render Config

-

Compute Units

2

SM Count

-

16

Shading Units

160

8

TMUs

8

4

ROPs

4

-

L1 Cache

8 KB (per CU)

16 KB

L2 Cache

128 KB

-

Theoretical Performance

1.600 GPixel/s

Pixel Rate

3.000 GPixel/s

3.200 GTexel/s

Texture Rate

6.000 GTexel/s

-

25.60 GFLOPS

FP32 (float)

240.0 GFLOPS

-

Board Design

11W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

G86

GPU Name

Seymour

NB8M-GS

GPU Variant

Seymour XTX M2 (216-0809000)

Tesla

Architecture

TeraScale 2

TSMC

Foundry

TSMC

80 nm

Process Size

40 nm

0.21 billion

Transistors

0.37 billion

127 mm²

Die Size

67 mm²

Graphics Features

11.1 (10_0)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

1.1

CUDA

-

4.0

Shader Model

5.0

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