AMD Radeon Pro Vega 20 vs NVIDIA GeForce GT 420M

VS

AMD Radeon Pro Vega 20

NVIDIA GeForce GT 420M

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro Vega 20 and 512MB VRAM GeForce GT 420M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro Vega 20 's Advantages

Released 8 years and 2 months late

Boost Clock1283MHz

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (189.4GB/s vs 25.60GB/s)

1184 additional rendering cores

NVIDIA GeForce GT 420M 's Advantages

Lower TDP (23W vs 100W)

Score

Benchmark

FP32 (float)

Radeon Pro Vega 20 +1610%

3.284 TFLOPS

GeForce GT 420M

0.192 TFLOPS

Radeon Pro Vega 20

VS

GeForce GT 420M

Graphics Card

Nov 2018

Release Date

Sep 2010

Radeon Pro Mac

Generation

GeForce 400M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

815 MHz

Base Clock

-

1283 MHz

Boost Clock

-

740 MHz

Memory Clock

800 MHz

Memory

4GB

Memory Size

512MB

HBM2

Memory Type

DDR3

1024bit

Memory Bus

128bit

189.4GB/s

Bandwidth

25.60GB/s

Render Config

20

Compute Units

-

SM Count

2

1280

Shading Units

96

80

TMUs

16

32

ROPs

4

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

41.06 GPixel/s

Pixel Rate

2.000 GPixel/s

102.6 GTexel/s

Texture Rate

8.000 GTexel/s

6.569 TFLOPS

FP16 (half)

-

3.284 TFLOPS

FP32 (float)

192.0 GFLOPS

205.3 GFLOPS

FP64 (double)

16.00 GFLOPS

Board Design

100W

TDP

23W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Vega 12

GPU Name

GF108

Vega 12 XTA

GPU Variant

N11P-GE-A1

GCN 5.0

Architecture

Fermi

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

Unknown

Transistors

0.585 billion

Unknown

Die Size

116 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

6.3

Shader Model

5.1

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