AMD Radeon R9 M395X vs NVIDIA GeForce 8400M GS

VS

AMD Radeon R9 M395X

NVIDIA GeForce 8400M GS

We compared two Mobile platform GPUs: 8GB VRAM Radeon R9 M395X 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 R9 M395X 's Advantages

Released 8 years late

More VRAM (8GB vs 256GB)

Larger VRAM bandwidth (160.0GB/s vs 6.400GB/s)

2032 additional rendering cores

NVIDIA GeForce 8400M GS 's Advantages

Lower TDP (11W vs 75W)

Score

Benchmark

FP32 (float)

Radeon R9 M395X +11288%

2.961 TFLOPS

GeForce 8400M GS

0.026 TFLOPS

Radeon R9 M395X

VS

GeForce 8400M GS

Graphics Card

May 2015

Release Date

May 2007

Crystal System

Generation

GeForce 8M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-I

Clock Speeds

-

1250 MHz

Memory Clock

400 MHz

Memory

8GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

160.0GB/s

Bandwidth

6.400GB/s

Render Config

32

Compute Units

-

SM Count

2

2048

Shading Units

16

128

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

16 KB

-

Theoretical Performance

23.14 GPixel/s

Pixel Rate

1.600 GPixel/s

92.54 GTexel/s

Texture Rate

3.200 GTexel/s

2.961 TFLOPS

FP16 (half)

-

2.961 TFLOPS

FP32 (float)

25.60 GFLOPS

185.1 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

11W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Amethyst

GPU Name

G86

Amethyst XT

GPU Variant

NB8M-GS

GCN 3.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

5 billion

Transistors

0.21 billion

366 mm²

Die Size

127 mm²

Graphics Features

12 (12_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

2.0

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.1

6.3

Shader Model

4.0

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