AMD Radeon RX 6450M vs NVIDIA GeForce 840M

VS

We compared two Mobile platform GPUs: 4GB VRAM Radeon RX 6450M and 2GB VRAM GeForce 840M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6450M 's Advantages

Released 8 years and 10 months late

Boost Clock has increased by 119% (2460MHz vs 1124MHz)

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (128.0GB/s vs 16.02GB/s)

384 additional rendering cores

NVIDIA GeForce 840M 's Advantages

Lower TDP (33W vs 50W)

Score

Benchmark

FP32 (float)

Radeon RX 6450M +337%

3.779 TFLOPS

GeForce 840M

0.863 TFLOPS

Radeon RX 6450M

VS

GeForce 840M

Graphics Card

Jan 2023

Release Date

Mar 2014

Navi Mobile

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 4.0 x4

Bus Interface

PCIe 3.0 x8

Clock Speeds

2000 MHz

Base Clock

1029 MHz

2460 MHz

Boost Clock

1124 MHz

2000 MHz

Memory Clock

1001 MHz

Memory

4GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

64bit

Memory Bus

64bit

128.0GB/s

Bandwidth

16.02GB/s

Render Config

-

SM Count

-

12

Compute Units

-

768

Shading Units

384

48

TMUs

16

32

ROPs

8

-

Tensor Cores

-

12

RT Cores

-

128 KB per Array

L1 Cache

64 KB (per SMM)

1024 KB

L2 Cache

1024 KB

Theoretical Performance

78.72 GPixel/s

Pixel Rate

8.992 GPixel/s

118.1 GTexel/s

Texture Rate

17.98 GTexel/s

7.557 TFLOPS

FP16 (half)

-

3.779 TFLOPS

FP32 (float)

863.2 GFLOPS

236.2 GFLOPS

FP64 (double)

26.98 GFLOPS

Graphics Processor

Navi 24

GPU Name

GM108

Navi 24 XML

GPU Variant

N15S-GT

RDNA 2.0

Architecture

Maxwell

TSMC

Foundry

TSMC

6 nm

Process Size

28 nm

5.4 billion

Transistors

Unknown

107 mm²

Die Size

Unknown

Board Design

50W

TDP

33W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.2

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

5.0

6.7

Shader Model

5.1

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