NVIDIA GeForce GTX 950M Mac Edition vs NVIDIA GeForce GT 640M

VS

NVIDIA GeForce GTX 950M Mac Edition

NVIDIA GeForce GT 640M

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 950M Mac Edition and 2GB VRAM GeForce GT 640M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 950M Mac Edition 's Advantages

Released 3 years late

Boost Clock1124MHz

256 additional rendering cores

NVIDIA GeForce GT 640M 's Advantages

Lower TDP (32W vs 75W)

Score

Benchmark

FP32 (float)

GeForce GTX 950M Mac Edition +199%

1.439 TFLOPS

GeForce GT 640M

0.48 TFLOPS

GeForce GTX 950M Mac Edition

VS

GeForce GT 640M

Graphics Card

Mar 2015

Release Date

Mar 2012

GeForce 900M

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

993 MHz

Base Clock

-

1124 MHz

Boost Clock

-

900 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

28.80GB/s

Render Config

-

640

Shading Units

384

40

TMUs

32

16

ROPs

16

-

64 KB (per SMM)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

17.98 GPixel/s

Pixel Rate

5.000 GPixel/s

44.96 GTexel/s

Texture Rate

20.00 GTexel/s

-

1439 GFLOPS

FP32 (float)

480.0 GFLOPS

44.96 GFLOPS

FP64 (double)

20.00 GFLOPS

Board Design

75W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM107

GPU Name

GK107

N16P-GT

GPU Variant

N13P-GS

Maxwell

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

1.27 billion

148 mm²

Die Size

118 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

5.0

CUDA

3.0

5.1

Shader Model

5.1

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