NVIDIA GeForce 840A vs AMD Radeon RX 580 Mobile

VS

NVIDIA GeForce 840A

AMD Radeon RX 580 Mobile

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

Main Differences

NVIDIA GeForce 840A 's Advantages

Boost Clock has increased by 4% (1124MHz vs 1077MHz)

Lower TDP (33W vs 100W)

AMD Radeon RX 580 Mobile 's Advantages

Released 3 years and 1 months late

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (256.0GB/s vs 16.02GB/s)

1920 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 840A

0.863 TFLOPS

Radeon RX 580 Mobile +475%

4.963 TFLOPS

GeForce 840A

VS

Radeon RX 580 Mobile

Graphics Card

Mar 2014

Release Date

Apr 2017

GeForce 800A

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

1029 MHz

Base Clock

1000 MHz

1124 MHz

Boost Clock

1077 MHz

1001 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

8GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

16.02GB/s

Bandwidth

256.0GB/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

34.46 GPixel/s

17.98 GTexel/s

Texture Rate

155.1 GTexel/s

-

FP16 (half)

4.963 TFLOPS

863.2 GFLOPS

FP32 (float)

4.963 TFLOPS

26.98 GFLOPS

FP64 (double)

310.2 GFLOPS

Board Design

33W

TDP

100W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GM108

GPU Name

Polaris 20

-

GPU Variant

Polaris 20M XT

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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