NVIDIA GeForce 940M vs AMD Radeon R5 A255

VS

We compared two Mobile platform GPUs: 2GB VRAM GeForce 940M and 1024MB VRAM Radeon R5 A255 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 940M 's Advantages

Released 1 years and 2 months late

Boost Clock has increased by 17% (1098MHz vs 940MHz)

More VRAM (2GB vs 1GB)

128 additional rendering cores

AMD Radeon R5 A255 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 14.40GB/s)

Score

Benchmark

FP32 (float)

GeForce 940M +55%

1.124 TFLOPS

Radeon R5 A255

0.721 TFLOPS

GeForce 940M

VS

Radeon R5 A255

Graphics Card

Mar 2015

Release Date

Jan 2014

GeForce 900M

Generation

All-In-One

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

1020 MHz

Base Clock

925 MHz

1098 MHz

Boost Clock

940 MHz

900 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

14.40GB/s

Bandwidth

64.00GB/s

Render Config

-

SM Count

-

Compute Units

6

512

Shading Units

384

32

TMUs

24

16

ROPs

8

-

Tensor Cores

-

RT Cores

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

Theoretical Performance

17.57 GPixel/s

Pixel Rate

7.520 GPixel/s

35.14 GTexel/s

Texture Rate

22.56 GTexel/s

-

FP16 (half)

-

1124 GFLOPS

FP32 (float)

721.9 GFLOPS

35.14 GFLOPS

FP64 (double)

-

Graphics Processor

GM107

GPU Name

Topaz

N16S-GT1-KB-B

GPU Variant

Topaz PRO (216-0858030)

Maxwell

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

1.55 billion

148 mm²

Die Size

125 mm²

Board Design

75W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.2.170

5.0

CUDA

-

5.1

Shader Model

6.5

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