NVIDIA GeForce RTX 4090 Max-Q vs NVIDIA GeForce GT 640M Mac Edition

VS

NVIDIA GeForce RTX 4090 Max-Q

NVIDIA GeForce GT 640M Mac Edition

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Max Q and 512MB VRAM GeForce GT 640M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 Max-Q 's Advantages

Released 9 years and 11 months late

Boost Clock1455MHz

More VRAM (16GB vs 512GB)

Larger VRAM bandwidth (448.0GB/s vs 40.00GB/s)

9344 additional rendering cores

NVIDIA GeForce GT 640M Mac Edition 's Advantages

Lower TDP (32W vs 80W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Max Q +4849%

28.31 TFLOPS

GeForce GT 640M Mac Edition

0.572 TFLOPS

GeForce RTX 4090 Max Q

VS

GeForce GT 640M Mac Edition

Graphics Card

Jan 2023

Release Date

Feb 2013

GeForce 40 Mobile

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

930 MHz

Base Clock

-

1455 MHz

Boost Clock

-

1750 MHz

Memory Clock

1250 MHz

Memory

16GB

Memory Size

512MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

64bit

448.0GB/s

Bandwidth

40.00GB/s

Render Config

-

76

SM Count

-

9728

Shading Units

384

304

TMUs

32

112

ROPs

8

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

64 MB

L2 Cache

128 KB

-

Theoretical Performance

163.0 GPixel/s

Pixel Rate

5.960 GPixel/s

442.3 GTexel/s

Texture Rate

23.84 GTexel/s

28.31 TFLOPS

FP16 (half)

-

28.31 TFLOPS

FP32 (float)

572.2 GFLOPS

442.3 GFLOPS

FP64 (double)

23.84 GFLOPS

Board Design

80W

TDP

32W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

AD103

GPU Name

GK107

GN21-X11

GPU Variant

N13P-GS

Ada Lovelace

Architecture

Kepler

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

45.9 billion

Transistors

1.27 billion

379 mm²

Die Size

118 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

8.9

CUDA

3.0

6.7

Shader Model

5.1

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