NVIDIA GeForce GT 640M vs AMD Radeon R9 M395 Mac Edition

VS

NVIDIA GeForce GT 640M AMD Radeon R9 M395 Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 640M and 2GB VRAM Radeon R9 M395 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640M 's Advantages

Lower TDP (32W vs 250W)

AMD Radeon R9 M395 Mac Edition 's Advantages

Released 3 years and 2 months late

Larger VRAM bandwidth (174.7GB/s vs 28.80GB/s)

1408 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640M

0.48 TFLOPS

Radeon R9 M395 Mac Edition +522%

2.989 TFLOPS

GeForce GT 640M

VS

Radeon R9 M395 Mac Edition

Graphics Card

Mar 2012

Release Date

May 2015

GeForce 600M

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

1365 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

28.80GB/s

Bandwidth

174.7GB/s

Render Config

-

SM Count

-

Compute Units

28

384

Shading Units

1792

32

TMUs

112

16

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

-

Theoretical Performance

5.000 GPixel/s

Pixel Rate

26.69 GPixel/s

20.00 GTexel/s

Texture Rate

93.41 GTexel/s

-

FP16 (half)

-

480.0 GFLOPS

FP32 (float)

2.989 TFLOPS

20.00 GFLOPS

FP64 (double)

373.6 GFLOPS

Graphics Processor

GK107

GPU Name

Amethyst

N13P-GS

GPU Variant

Amethyst PRO (216-0872004)

Kepler

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

5 billion

118 mm²

Die Size

366 mm²

Board Design

32W

TDP

250W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

6.3

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