AMD Radeon R9 M395X vs NVIDIA GeForce 8400M G

VS

AMD Radeon R9 M395X

NVIDIA GeForce 8400M G

We compared two Mobile platform GPUs: 8GB VRAM Radeon R9 M395X and 256MB VRAM GeForce 8400M G 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)

2040 additional rendering cores

NVIDIA GeForce 8400M G 's Advantages

Lower TDP (10W vs 75W)

Score

Benchmark

FP32 (float)

Radeon R9 M395X +22676%

2.961 TFLOPS

GeForce 8400M G

0.013 TFLOPS

Radeon R9 M395X

VS

GeForce 8400M G

Graphics Card

May 2015

Release Date

May 2007

Crystal System

Generation

GeForce 8M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

400 MHz

Memory

8GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

64bit

160.0GB/s

Bandwidth

6.400GB/s

Render Config

32

Compute Units

-

SM Count

1

2048

Shading Units

8

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)

12.80 GFLOPS

185.1 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

10W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Amethyst

GPU Name

G86

Amethyst XT

GPU Variant

NB8M-SE

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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