AMD Radeon 540X Mobile vs NVIDIA GeForce 840M

VS

AMD Radeon 540X Mobile

NVIDIA GeForce 840M

We compared two Mobile platform GPUs: 2GB VRAM Radeon 540X Mobile and 2GB VRAM GeForce 840M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 540X Mobile 's Advantages

Released 4 years and 11 months late

Larger VRAM bandwidth (32.00GB/s vs 16.02GB/s)

128 additional rendering cores

NVIDIA GeForce 840M 's Advantages

Boost Clock has increased by 3% (1124MHz vs 1095MHz)

Lower TDP (33W vs 50W)

Score

Benchmark

FP32 (float)

Radeon 540X Mobile +29%

1.121 TFLOPS

GeForce 840M

0.863 TFLOPS

Radeon 540X Mobile

VS

GeForce 840M

Graphics Card

Feb 2019

Release Date

Mar 2014

Mobility Radeon

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

980 MHz

Base Clock

1029 MHz

1095 MHz

Boost Clock

1124 MHz

1000 MHz

Memory Clock

1001 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

64bit

32.00GB/s

Bandwidth

16.02GB/s

Render Config

8

Compute Units

-

512

Shading Units

384

32

TMUs

16

ROPs

8

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

512 KB

L2 Cache

1024 KB

-

Theoretical Performance

17.52 GPixel/s

Pixel Rate

8.992 GPixel/s

35.04 GTexel/s

Texture Rate

17.98 GTexel/s

1121 GFLOPS

FP16 (half)

-

1121 GFLOPS

FP32 (float)

863.2 GFLOPS

70.08 GFLOPS

FP64 (double)

26.98 GFLOPS

Board Design

50W

TDP

33W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Lexa

GPU Name

GM108

Lexa PRO (215-0904018)

GPU Variant

N15S-GT

GCN 4.0

Architecture

Maxwell

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

Unknown

103 mm²

Die Size

Unknown

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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