NVIDIA GeForce 840M vs AMD Radeon Pro 580X

VS

NVIDIA GeForce 840M

AMD Radeon Pro 580X

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840M and 8GB VRAM Radeon Pro 580X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840M 's Advantages

Lower TDP (33W vs 185W)

AMD Radeon Pro 580X 's Advantages

Released 5 years late

Boost Clock has increased by 7% (1200MHz vs 1124MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (218.9GB/s vs 16.02GB/s)

1920 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 840M

0.863 TFLOPS

Radeon Pro 580X +540%

5.53 TFLOPS

Blender

GeForce 840M

67

Radeon Pro 580X +398%

334

GeForce 840M

VS

Radeon Pro 580X

Graphics Card

Mar 2014

Release Date

Mar 2019

GeForce 800M

Generation

Radeon Pro Mac

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1029 MHz

Base Clock

1100 MHz

1124 MHz

Boost Clock

1200 MHz

1001 MHz

Memory Clock

1710 MHz

Memory

2GB

Memory Size

8GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

16.02GB/s

Bandwidth

218.9GB/s

Render Config

-

Compute Units

36

-

384

Shading Units

2304

16

TMUs

144

8

ROPs

32

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

2 MB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

38.40 GPixel/s

17.98 GTexel/s

Texture Rate

172.8 GTexel/s

-

FP16 (half)

5.530 TFLOPS

863.2 GFLOPS

FP32 (float)

5.530 TFLOPS

26.98 GFLOPS

FP64 (double)

345.6 GFLOPS

Board Design

33W

TDP

185W

-

No outputs

Outputs

2x HDMI 2.0b

-

Power Connectors

None

Graphics Processor

GM108

GPU Name

Ellesmere

N15S-GT

GPU Variant

Ellesmere XTA (216-0886220)

Maxwell

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

Unknown

Transistors

5.7 billion

Unknown

Die Size

232 mm²

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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