NVIDIA GeForce RTX 4070 Mobile vs AMD Radeon RX 6450M

VS

NVIDIA GeForce RTX 4070 Mobile AMD Radeon RX 6450M

We compared two Mobile platform GPUs: 8GB VRAM GeForce RTX 4070 Mobile and 4GB VRAM Radeon RX 6450M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4070 Mobile 's Advantages

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (256.0GB/s vs 128.0GB/s)

3840 additional rendering cores

AMD Radeon RX 6450M 's Advantages

Boost Clock has increased by 45% (2460MHz vs 1695MHz)

Lower TDP (50W vs 115W)

Score

Benchmark

FP32 (float)

GeForce RTX 4070 Mobile +313%

15.62 TFLOPS

Radeon RX 6450M

3.779 TFLOPS

GeForce RTX 4070 Mobile

VS

Radeon RX 6450M

Graphics Card

Jan 2023

Release Date

Jan 2023

GeForce 40 Mobile

Generation

Navi Mobile

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x4

Clock Speeds

1395 MHz

Base Clock

2000 MHz

1695 MHz

Boost Clock

2460 MHz

2000 MHz

Memory Clock

2000 MHz

Memory

8GB

Memory Size

4GB

GDDR6

Memory Type

GDDR6

128bit

Memory Bus

64bit

256.0GB/s

Bandwidth

128.0GB/s

Render Config

36

SM Count

-

Compute Units

12

4608

Shading Units

768

144

TMUs

48

ROPs

32

144

Tensor Cores

-

36

RT Cores

12

128 KB (per SM)

L1 Cache

128 KB per Array

32 MB

L2 Cache

1024 KB

Theoretical Performance

81.36 GPixel/s

Pixel Rate

78.72 GPixel/s

244.1 GTexel/s

Texture Rate

118.1 GTexel/s

15.62 TFLOPS

FP16 (half)

7.557 TFLOPS

15.62 TFLOPS

FP32 (float)

3.779 TFLOPS

244.1 GFLOPS

FP64 (double)

236.2 GFLOPS

Graphics Processor

AD106

GPU Name

Navi 24

GN21-X6

GPU Variant

Navi 24 XML

Ada Lovelace

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

4 nm

Process Size

6 nm

Unknown

Transistors

5.4 billion

190 mm²

Die Size

107 mm²

Board Design

115W

TDP

50W

-

Suggested PSU

-

Portable Device Dependent

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.2

1.3

Vulkan

1.3

8.9

CUDA

-

6.7

Shader Model

6.7

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