NVIDIA GeForce 920MX vs NVIDIA GeForce GT 640M Mac Edition

VS

NVIDIA GeForce 920MX NVIDIA GeForce GT 640M Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM GeForce 920MX and 512MB VRAM GeForce GT 640M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 920MX 's Advantages

Released 3 years and 1 months late

Boost Clock993MHz

Lower TDP (16W vs 32W)

NVIDIA GeForce GT 640M Mac Edition 's Advantages

Larger VRAM bandwidth (40.00GB/s vs 14.40GB/s)

128 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 920MX

0.508 TFLOPS

GeForce GT 640M Mac Edition +12%

0.572 TFLOPS

GeForce 920MX

VS

GeForce GT 640M Mac Edition

Graphics Card

Mar 2016

Release Date

Feb 2013

GeForce 900M

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

965 MHz

Base Clock

-

993 MHz

Boost Clock

-

900 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

64bit

14.40GB/s

Bandwidth

40.00GB/s

Render Config

-

SM Count

-

Compute Units

-

256

Shading Units

384

24

TMUs

32

8

ROPs

8

-

Tensor Cores

-

RT Cores

-

64 KB (per SMM)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

128 KB

Theoretical Performance

7.944 GPixel/s

Pixel Rate

5.960 GPixel/s

23.83 GTexel/s

Texture Rate

23.84 GTexel/s

-

FP16 (half)

-

508.4 GFLOPS

FP32 (float)

572.2 GFLOPS

15.89 GFLOPS

FP64 (double)

23.84 GFLOPS

Graphics Processor

GM108

GPU Name

GK107

N16V-GMR1-S

GPU Variant

N13P-GS

Maxwell

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

1.27 billion

Unknown

Die Size

118 mm²

Board Design

16W

TDP

32W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

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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