NVIDIA GeForce 840A vs AMD Radeon Pro Vega 20

VS

NVIDIA GeForce 840A

AMD Radeon Pro Vega 20

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840A and 4GB VRAM Radeon Pro Vega 20 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840A 's Advantages

Lower TDP (33W vs 100W)

AMD Radeon Pro Vega 20 's Advantages

Released 4 years and 8 months late

Boost Clock has increased by 14% (1283MHz vs 1124MHz)

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (189.4GB/s vs 16.02GB/s)

896 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 840A

0.863 TFLOPS

Radeon Pro Vega 20 +280%

3.284 TFLOPS

GeForce 840A

VS

Radeon Pro Vega 20

Graphics Card

Mar 2014

Release Date

Nov 2018

GeForce 800A

Generation

Radeon Pro Mac

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1029 MHz

Base Clock

815 MHz

1124 MHz

Boost Clock

1283 MHz

1001 MHz

Memory Clock

740 MHz

Memory

2GB

Memory Size

4GB

DDR3

Memory Type

HBM2

64bit

Memory Bus

1024bit

16.02GB/s

Bandwidth

189.4GB/s

Render Config

-

Compute Units

20

-

384

Shading Units

1280

16

TMUs

80

8

ROPs

32

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

1024 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

41.06 GPixel/s

17.98 GTexel/s

Texture Rate

102.6 GTexel/s

-

FP16 (half)

6.569 TFLOPS

863.2 GFLOPS

FP32 (float)

3.284 TFLOPS

26.98 GFLOPS

FP64 (double)

205.3 GFLOPS

Board Design

33W

TDP

100W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM108

GPU Name

Vega 12

-

GPU Variant

Vega 12 XTA

Maxwell

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

Unknown

Transistors

Unknown

Die Size

Unknown

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.2

5.0

CUDA

-

5.1

Shader Model

6.3

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