NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon HD 6750M

VS

NVIDIA GeForce RTX 4090 Mobile

AMD Radeon HD 6750M

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Mobile and 1024MB VRAM Radeon HD 6750M 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 12 years late

Boost Clock1695MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (576.0GB/s vs 25.60GB/s)

9248 additional rendering cores

AMD Radeon HD 6750M 's Advantages

Lower TDP (35W vs 80W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Mobile +5625%

32.98 TFLOPS

Radeon HD 6750M

0.576 TFLOPS

GeForce RTX 4090 Mobile

VS

Radeon HD 6750M

Graphics Card

Jan 2023

Release Date

Jan 2011

GeForce 40 Mobile

Generation

Vancouver

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

800 MHz

Memory

16GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR3

256bit

Memory Bus

128bit

576.0GB/s

Bandwidth

25.60GB/s

Render Config

-

Compute Units

6

76

SM Count

-

9728

Shading Units

480

304

TMUs

24

112

ROPs

8

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

64 MB

L2 Cache

256 KB

-

Theoretical Performance

189.8 GPixel/s

Pixel Rate

4.800 GPixel/s

515.3 GTexel/s

Texture Rate

14.40 GTexel/s

32.98 TFLOPS

FP16 (half)

-

32.98 TFLOPS

FP32 (float)

576.0 GFLOPS

515.3 GFLOPS

FP64 (double)

-

Board Design

80-150W

TDP

35W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

AD103

GPU Name

Whistler

GN21-X11

GPU Variant

Whistler PRO (216-0810005)

Ada Lovelace

Architecture

TeraScale 2

TSMC

Foundry

TSMC

5 nm

Process Size

40 nm

45.9 billion

Transistors

0.716 billion

379 mm²

Die Size

104 mm²

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

-

6.8

Shader Model

5.0

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