AMD Radeon RX 6450M vs NVIDIA GeForce GT 640M LE

VS

AMD Radeon RX 6450M

NVIDIA GeForce GT 640M LE

We compared two Mobile platform GPUs: 4GB VRAM Radeon RX 6450M and 2GB VRAM GeForce GT 640M LE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6450M 's Advantages

Released 10 years and 8 months late

Boost Clock2460MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (128.0GB/s vs 50.24GB/s)

672 additional rendering cores

NVIDIA GeForce GT 640M LE 's Advantages

Lower TDP (32W vs 50W)

Score

Benchmark

FP32 (float)

Radeon RX 6450M +1207%

3.779 TFLOPS

GeForce GT 640M LE

0.289 TFLOPS

Radeon RX 6450M

VS

GeForce GT 640M LE

Graphics Card

Jan 2023

Release Date

May 2012

Navi Mobile

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 4.0 x4

Bus Interface

PCIe 2.0 x16

Clock Speeds

2000 MHz

Base Clock

-

2460 MHz

Boost Clock

-

2000 MHz

Memory Clock

785 MHz

Memory

4GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

64bit

Memory Bus

128bit

128.0GB/s

Bandwidth

50.24GB/s

Render Config

12

Compute Units

-

SM Count

2

768

Shading Units

96

48

TMUs

16

32

ROPs

4

-

12

RT Cores

-

128 KB per Array

L1 Cache

64 KB (per SM)

1024 KB

L2 Cache

256 KB

16 MB

L3 Cache

-

Theoretical Performance

78.72 GPixel/s

Pixel Rate

3.012 GPixel/s

118.1 GTexel/s

Texture Rate

12.05 GTexel/s

7.557 TFLOPS

FP16 (half)

-

3.779 TFLOPS

FP32 (float)

289.0 GFLOPS

236.2 GFLOPS

FP64 (double)

24.08 GFLOPS

Board Design

50W

TDP

32W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Navi 24

GPU Name

GF108

Navi 24 XML

GPU Variant

-

RDNA 2.0

Architecture

Fermi

TSMC

Foundry

TSMC

6 nm

Process Size

40 nm

5.4 billion

Transistors

0.585 billion

107 mm²

Die Size

116 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.2

OpenCL

1.1

1.3

Vulkan

N/A

-

CUDA

2.1

6.7

Shader Model

5.1

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