GeForce RTX 5080 Mobile vs GT 640M

Primary details

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

Place in the ranking836not rated
Place by popularitynot in top-100not in top-100
Power efficiency5.19no data
ArchitectureKepler (2012−2018)Blackwell 2.0 (2025)
GPU code nameGK107GB203
Market segmentLaptopLaptop
Release date22 March 2012 (12 years ago)2025

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 cores3848192
Core clock speedUp to 625 MHz1500 MHz
Boost clock speed645 MHz2000 MHz
Number of transistors1,270 millionno data
Manufacturing process technology28 nm0 nm
Power consumption (TDP)32 Watt175 Watt
Texture fill rate20.00512.0
Floating-point processing power0.48 TFLOPS32.77 TFLOPS
ROPs1696
TMUs32256
Tensor Coresno data256
Ray Tracing Coresno data64

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).

Laptop sizemedium sizedno data
Bus supportPCI Express 2.0, PCI Express 3.0no data
InterfacePCIe 3.0 x16PCIe 5.0 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 typeDDR3\GDDR5GDDR7
Maximum RAM amount2 GB16 GB
Memory bus width128bit256 Bit
Memory clock speed900 MHz2500 MHz
Memory bandwidthUp to 64.0 GB/s1.01 TB/s
Shared memory--

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 outputs1x HDMI 2.1, 3x DisplayPort 1.4a
HDMI++
HDCP+-
Maximum VGA resolutionUp to 2048x1536no data

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

3D Blu-Ray+-
Optimus+-

API compatibility

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

DirectX12 API12 Ultimate (12_2)
Shader Model5.16.8
OpenGL4.54.6
OpenCL1.13.0
Vulkan1.1.1261.3
CUDA+10.1

Pros & cons summary


Maximum RAM amount 2 GB 16 GB
Power consumption (TDP) 32 Watt 175 Watt

GT 640M has 446.9% lower power consumption.

RTX 5080 Mobile, on the other hand, has a 700% higher maximum VRAM amount.

We couldn't decide between GeForce GT 640M and GeForce RTX 5080 Mobile. 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 GT 640M
GeForce GT 640M
NVIDIA GeForce RTX 5080 Mobile
GeForce RTX 5080 Mobile

Comparisons with similar GPUs

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