NVIDIA GeForce RTX 4070 Mobile vs NVIDIA GeForce GT 420M

VS

NVIDIA GeForce RTX 4070 Mobile

NVIDIA GeForce GT 420M

We compared two Mobile platform GPUs: 8GB VRAM GeForce RTX 4070 Mobile and 512MB VRAM GeForce GT 420M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4070 Mobile 's Advantages

Released 12 years and 4 months late

Boost Clock1695MHz

More VRAM (8GB vs 512GB)

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

4512 additional rendering cores

NVIDIA GeForce GT 420M 's Advantages

Lower TDP (23W vs 115W)

Score

Benchmark

FP32 (float)

GeForce RTX 4070 Mobile +8035%

15.62 TFLOPS

GeForce GT 420M

0.192 TFLOPS

GeForce RTX 4070 Mobile

VS

GeForce GT 420M

Graphics Card

Jan 2023

Release Date

Sep 2010

GeForce 40 Mobile

Generation

GeForce 400M

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1395 MHz

Base Clock

-

1695 MHz

Boost Clock

-

2000 MHz

Memory Clock

800 MHz

Memory

8GB

Memory Size

512MB

GDDR6

Memory Type

DDR3

128bit

Memory Bus

128bit

256.0GB/s

Bandwidth

25.60GB/s

Render Config

-

36

SM Count

2

4608

Shading Units

96

144

TMUs

16

48

ROPs

4

144

Tensor Cores

-

36

RT Cores

-

128 KB (per SM)

L1 Cache

64 KB (per SM)

32 MB

L2 Cache

256 KB

-

Theoretical Performance

81.36 GPixel/s

Pixel Rate

2.000 GPixel/s

244.1 GTexel/s

Texture Rate

8.000 GTexel/s

15.62 TFLOPS

FP16 (half)

-

15.62 TFLOPS

FP32 (float)

192.0 GFLOPS

244.1 GFLOPS

FP64 (double)

16.00 GFLOPS

Board Design

115W

TDP

23W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

AD106

GPU Name

GF108

GN21-X6

GPU Variant

N11P-GE-A1

Ada Lovelace

Architecture

Fermi

TSMC

Foundry

TSMC

4 nm

Process Size

40 nm

Unknown

Transistors

0.585 billion

190 mm²

Die Size

116 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

1.3

Vulkan

N/A

8.9

CUDA

2.1

6.7

Shader Model

5.1

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