AMD Radeon Pro 555X vs NVIDIA GeForce 940M

VS

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

Main Differences

AMD Radeon Pro 555X 's Advantages

Released 3 years and 4 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (94.08GB/s vs 14.40GB/s)

256 additional rendering cores

NVIDIA GeForce 940M 's Advantages

Boost Clock1098MHz

Score

Benchmark

FP32 (float)

Radeon Pro 555X +23%

1.393 TFLOPS

GeForce 940M

1.124 TFLOPS

Radeon Pro 555X

VS

GeForce 940M

Graphics Card

Jul 2018

Release Date

Mar 2015

Radeon Pro Mac

Generation

GeForce 900M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

1020 MHz

-

Boost Clock

1098 MHz

1470 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

94.08GB/s

Bandwidth

14.40GB/s

Render Config

-

SM Count

-

12

Compute Units

-

768

Shading Units

512

48

TMUs

32

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

1024 KB

L2 Cache

2 MB

Theoretical Performance

14.51 GPixel/s

Pixel Rate

17.57 GPixel/s

43.54 GTexel/s

Texture Rate

35.14 GTexel/s

1393 GFLOPS

FP16 (half)

-

1393 GFLOPS

FP32 (float)

1124 GFLOPS

87.07 GFLOPS

FP64 (double)

35.14 GFLOPS

Graphics Processor

Polaris 21

GPU Name

GM107

Polaris 21 PRO

GPU Variant

N16S-GT1-KB-B

GCN 4.0

Architecture

Maxwell

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

1.87 billion

123 mm²

Die Size

148 mm²

Board Design

75W

TDP

75W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.0

6.4

Shader Model

5.1

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