NVIDIA GeForce GT 420M vs AMD Radeon RX 6650M XT

VS

NVIDIA GeForce GT 420M

AMD Radeon RX 6650M XT

We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 420M and 8GB VRAM Radeon RX 6650M XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 420M 's Advantages

Lower TDP (23W vs 120W)

AMD Radeon RX 6650M XT 's Advantages

Released 11 years and 4 months late

Boost Clock2416MHz

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (256.0GB/s vs 25.60GB/s)

1952 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 420M

0.192 TFLOPS

Radeon RX 6650M XT +5054%

9.896 TFLOPS

GeForce GT 420M

VS

Radeon RX 6650M XT

Graphics Card

Sep 2010

Release Date

Jan 2022

GeForce 400M

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

2068 MHz

-

Boost Clock

2416 MHz

800 MHz

Memory Clock

2000 MHz

Memory

512MB

Memory Size

8GB

DDR3

Memory Type

GDDR6

128bit

Memory Bus

128bit

25.60GB/s

Bandwidth

256.0GB/s

Render Config

-

Compute Units

32

2

SM Count

-

96

Shading Units

2048

16

TMUs

128

4

ROPs

64

-

RT Cores

32

64 KB (per SM)

L1 Cache

128 KB per Array

256 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

2.000 GPixel/s

Pixel Rate

154.6 GPixel/s

8.000 GTexel/s

Texture Rate

309.2 GTexel/s

-

FP16 (half)

19.79 TFLOPS

192.0 GFLOPS

FP32 (float)

9.896 TFLOPS

16.00 GFLOPS

FP64 (double)

618.5 GFLOPS

Board Design

23W

TDP

120W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GF108

GPU Name

Navi 23

N11P-GE-A1

GPU Variant

-

Fermi

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

7 nm

0.585 billion

Transistors

11.06 billion

116 mm²

Die Size

237 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.1

OpenCL

2.1

N/A

Vulkan

1.3

2.1

CUDA

-

5.1

Shader Model

6.5

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