GeForce GT 640 OEM vs UHD Graphics G4

VS

Primary details

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

Place in the rankingnot rated935
Place by popularitynot in top-100not in top-100
Power efficiencyno data2.33
ArchitectureGeneration 11.0 (2019−2021)Kepler (2012−2018)
GPU code nameLakefield GT1GK107
Market segmentLaptopDesktop
Release date28 May 2020 (4 years ago)24 April 2012 (12 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 cores384384
Core clock speed200 MHz797 MHz
Boost clock speed500 MHzno data
Number of transistorsno data1,270 million
Manufacturing process technology10 nm28 nm
Power consumption (TDP)15 Watt50 Watt
Texture fill rate16.0025.50
Floating-point processing power0.384 TFLOPS0.6121 TFLOPS
ROPs816
TMUs3232

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 x1PCIe 3.0 x16
Lengthno data145 mm
Widthno data1-slot
Supplementary power connectorsno dataNone

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 typeSystem SharedDDR3
Maximum RAM amountSystem Shared2 GB
Memory bus widthSystem Shared128 Bit
Memory clock speedSystem Shared891 MHz
Memory bandwidthno data28.51 GB/s
Shared memory+no data

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 DVI, 1x HDMI, 1x DisplayPort
HDMI-+

API compatibility

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

DirectX12 (12_1)12 (11_0)
Shader Model6.45.1
OpenGL4.64.6
OpenCL2.11.2
Vulkan1.11.1.126
CUDA-3.0

Pros & cons summary


Recency 28 May 2020 24 April 2012
Chip lithography 10 nm 28 nm
Power consumption (TDP) 15 Watt 50 Watt

UHD Graphics G4 has an age advantage of 8 years, a 180% more advanced lithography process, and 233.3% lower power consumption.

We couldn't decide between UHD Graphics G4 and GeForce GT 640 OEM. We've got no test results to judge.

Be aware that UHD Graphics G4 is a notebook card while GeForce GT 640 OEM is a desktop one.


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

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


Intel UHD Graphics G4
UHD Graphics G4
NVIDIA GeForce GT 640 OEM
GeForce GT 640 OEM

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3.7 34 votes

Rate UHD Graphics G4 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.9 35 votes

Rate GeForce GT 640 OEM on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.