NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon HD 6450A

VS

NVIDIA GeForce RTX 4090 Mobile AMD Radeon HD 6450A

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Mobile and 512MB VRAM Radeon HD 6450A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 Mobile 's Advantages

Released 11 years and 9 months late

Boost Clock1695MHz

Larger VRAM bandwidth (576.0GB/s vs 8.528GB/s)

9568 additional rendering cores

AMD Radeon HD 6450A 's Advantages

Lower TDP (25W vs 120W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Mobile +16390%

32.98 TFLOPS

Radeon HD 6450A

0.2 TFLOPS

GeForce RTX 4090 Mobile

VS

Radeon HD 6450A

Graphics Card

Jan 2023

Release Date

Apr 2011

GeForce 40 Mobile

Generation

All-In-One

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

1335 MHz

Base Clock

-

1695 MHz

Boost Clock

-

2250 MHz

Memory Clock

533 MHz

Memory

16GB

Memory Size

512MB

GDDR6

Memory Type

DDR3

256bit

Memory Bus

64bit

576.0GB/s

Bandwidth

8.528GB/s

Render Config

76

SM Count

-

Compute Units

2

9728

Shading Units

160

304

TMUs

8

112

ROPs

4

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

64 MB

L2 Cache

128 KB

Theoretical Performance

189.8 GPixel/s

Pixel Rate

2.500 GPixel/s

515.3 GTexel/s

Texture Rate

5.000 GTexel/s

32.98 TFLOPS

FP16 (half)

-

32.98 TFLOPS

FP32 (float)

200.0 GFLOPS

515.3 GFLOPS

FP64 (double)

-

Graphics Processor

AD103

GPU Name

Caicos

GN21-X11

GPU Variant

-

Ada Lovelace

Architecture

TeraScale 2

TSMC

Foundry

TSMC

4 nm

Process Size

40 nm

45.9 billion

Transistors

0.37 billion

379 mm²

Die Size

67 mm²

Board Design

120W

TDP

25W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

8.9

CUDA

-

6.7

Shader Model

5.0

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