NVIDIA GeForce 940MX vs AMD Radeon Pro 555X

VS

NVIDIA GeForce 940MX AMD Radeon Pro 555X

We compared two Mobile platform GPUs: 2GB VRAM GeForce 940MX and 4GB VRAM Radeon Pro 555X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 940MX 's Advantages

Boost Clock1242MHz

Lower TDP (23W vs 75W)

AMD Radeon Pro 555X 's Advantages

Released 2 years and 6 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (94.08GB/s vs 16.02GB/s)

384 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 940MX

0.954 TFLOPS

Radeon Pro 555X +46%

1.393 TFLOPS

GeForce 940MX

VS

Radeon Pro 555X

Graphics Card

Jan 2016

Release Date

Jul 2018

GeForce 900M

Generation

Radeon Pro Mac

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1004 MHz

Base Clock

-

1242 MHz

Boost Clock

-

1001 MHz

Memory Clock

1470 MHz

Memory

2GB

Memory Size

4GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

16.02GB/s

Bandwidth

94.08GB/s

Render Config

-

SM Count

-

Compute Units

12

384

Shading Units

768

24

TMUs

48

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

1024 KB

Theoretical Performance

9.936 GPixel/s

Pixel Rate

14.51 GPixel/s

29.81 GTexel/s

Texture Rate

43.54 GTexel/s

-

FP16 (half)

1393 GFLOPS

953.9 GFLOPS

FP32 (float)

1393 GFLOPS

29.81 GFLOPS

FP64 (double)

87.07 GFLOPS

Graphics Processor

GM108

GPU Name

Polaris 21

N16S-GTR-S

GPU Variant

Polaris 21 PRO

Maxwell

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

Unknown

Transistors

3 billion

Unknown

Die Size

123 mm²

Board Design

23W

TDP

75W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.2

5.0

CUDA

-

5.1

Shader Model

6.4

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