NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon HD 7750M

VS

NVIDIA GeForce RTX 4090 Mobile

AMD Radeon HD 7750M

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Mobile and 2GB VRAM Radeon HD 7750M 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 10 years and 9 months late

Boost Clock1695MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (576.0GB/s vs 64.00GB/s)

9216 additional rendering cores

AMD Radeon HD 7750M 's Advantages

Lower TDP (28W vs 80W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Mobile +5499%

32.98 TFLOPS

Radeon HD 7750M

0.589 TFLOPS

GeForce RTX 4090 Mobile

VS

Radeon HD 7750M

Graphics Card

Jan 2023

Release Date

Apr 2012

GeForce 40 Mobile

Generation

London

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1335 MHz

Base Clock

-

1695 MHz

Boost Clock

-

2250 MHz

Memory Clock

1000 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

576.0GB/s

Bandwidth

64.00GB/s

Render Config

-

Compute Units

8

76

SM Count

-

9728

Shading Units

512

304

TMUs

32

112

ROPs

16

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

64 MB

L2 Cache

256 KB

-

Theoretical Performance

189.8 GPixel/s

Pixel Rate

9.200 GPixel/s

515.3 GTexel/s

Texture Rate

18.40 GTexel/s

32.98 TFLOPS

FP16 (half)

-

32.98 TFLOPS

FP32 (float)

588.8 GFLOPS

515.3 GFLOPS

FP64 (double)

36.80 GFLOPS

Board Design

80-150W

TDP

28W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

AD103

GPU Name

Chelsea

GN21-X11

GPU Variant

Chelsea PRO

Ada Lovelace

Architecture

GCN 1.0

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

45.9 billion

Transistors

1.5 billion

379 mm²

Die Size

123 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

8.9

CUDA

-

6.8

Shader Model

5.1

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