NVIDIA GeForce RTX 4090 Mobile vs NVIDIA GeForce GT 640M

VS

NVIDIA GeForce RTX 4090 Mobile

NVIDIA GeForce GT 640M

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Mobile and 2GB VRAM GeForce GT 640M 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 10 months late

Boost Clock1695MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (576.0GB/s vs 28.80GB/s)

9344 additional rendering cores

NVIDIA GeForce GT 640M 's Advantages

Lower TDP (32W vs 80W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Mobile +6770%

32.98 TFLOPS

GeForce GT 640M

0.48 TFLOPS

GeForce RTX 4090 Mobile

VS

GeForce GT 640M

Graphics Card

Jan 2023

Release Date

Mar 2012

GeForce 40 Mobile

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1335 MHz

Base Clock

-

1695 MHz

Boost Clock

-

2250 MHz

Memory Clock

900 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

256bit

Memory Bus

128bit

576.0GB/s

Bandwidth

28.80GB/s

Render Config

-

76

SM Count

-

9728

Shading Units

384

304

TMUs

32

112

ROPs

16

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

64 MB

L2 Cache

256 KB

-

Theoretical Performance

189.8 GPixel/s

Pixel Rate

5.000 GPixel/s

515.3 GTexel/s

Texture Rate

20.00 GTexel/s

32.98 TFLOPS

FP16 (half)

-

32.98 TFLOPS

FP32 (float)

480.0 GFLOPS

515.3 GFLOPS

FP64 (double)

20.00 GFLOPS

Board Design

80-150W

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

5 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

6.8

Shader Model

5.1

Related GPU Comparisons

1

NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon HD 7970M

2

NVIDIA GeForce RTX 4090 Mobile vs NVIDIA GeForce GTX 680MX Mac Edition

3

NVIDIA GeForce RTX 4090 Mobile vs NVIDIA GeForce GT 325M

4

NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon E8860

5

NVIDIA GeForce RTX 4090 Mobile vs ATI Mobility Radeon HD 4550

6

NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon Pro Vega 20

7

NVIDIA GeForce RTX 4090 Mobile vs NVIDIA GeForce RTX 3060 Mobile

8

NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon R9 M295X

9

NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon RX 6700M

10

NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon RX 560X Mobile

Related News

1

CXMT Reportedly Achieves 80% Yield in DDR5 Production

2

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

3

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

4

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

5

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

6

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

7

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

8

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

9

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

10

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage