GeForce GT 640M Mac Edition vs GTX 1650 Mobile Refresh

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the rankingnot rated1089
Place by popularitynot in top-100not in top-100
Power efficiencyno data2.25
ArchitectureTuring (2018−2022)Kepler (2012−2018)
GPU code nameTU117BGK107
Market segmentLaptopLaptop
Release date15 April 2020 (4 years ago)3 February 2013 (11 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores1024384
Core clock speed1380 MHz745 MHz
Boost clock speed1515 MHzno data
Number of transistors4,700 million1,270 million
Manufacturing process technology12 nm28 nm
Power consumption (TDP)50 Watt32 Watt
Texture fill rate96.9623.84
Floating-point processing power3.103 TFLOPS0.5722 TFLOPS
ROPs328
TMUs6432

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfacePCIe 3.0 x16PCIe 3.0 x16

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR6GDDR5
Maximum RAM amount4 GB512 MB
Memory bus width128 Bit64 Bit
Memory clock speed1500 MHz1250 MHz
Memory bandwidth192.0 GB/s40 GB/s

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display ConnectorsNo outputsNo outputs

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 (12_1)12 (11_0)
Shader Model6.55.1
OpenGL4.64.6
OpenCL1.21.2
Vulkan1.2.1401.1.126
CUDA7.53.0

Pros & cons summary


Recency 15 April 2020 3 February 2013
Maximum RAM amount 4 GB 512 MB
Chip lithography 12 nm 28 nm
Power consumption (TDP) 50 Watt 32 Watt

GTX 1650 Mobile Refresh has an age advantage of 7 years, a 700% higher maximum VRAM amount, and a 133.3% more advanced lithography process.

GT 640M Mac Edition, on the other hand, has 56.3% lower power consumption.

We couldn't decide between GeForce GTX 1650 Mobile Refresh and GeForce GT 640M Mac Edition. We've got no test results to judge.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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NVIDIA GeForce GTX 1650 Mobile Refresh
GeForce GTX 1650 Mobile Refresh
NVIDIA GeForce GT 640M Mac Edition
GeForce GT 640M Mac Edition

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Community ratings

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3.9 138 votes

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3.1 9 votes

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Questions & comments

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