GeForce GT 640M vs GRID K220Q

Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M and GRID K220Q. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GT 640M and GRID K220Q. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

GeForce GT 640M is a Laptop Graphics Card

Note: GeForce GT 640M is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with GeForce GT 640M here:

Main Specs

  GeForce GT 640M GRID K220Q
Power consumption (TDP) 32 Watt 225 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Memory type DDR3\GDDR5 GDDR5
Maximum RAM amount 2 GB 512 MB
Display Connectors No outputs No outputs
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  • GRID K220Q has 603% more power consumption, than GeForce GT 640M.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • GRID K220Q has 510 GB more memory, than GeForce GT 640M.
  • GeForce GT 640M is used in Laptops, and GRID K220Q - in Desktops.
  • GeForce GT 640M and GRID K220Q are build with Kepler architecture.
  • GeForce GT 640M and GRID K220Q are manufactured by 28 nm process technology.
  • Memory clock speed of GRID K220Q is 3200 MHz higher, than GeForce GT 640M.

Game benchmarks

high / 1080p 0−1 1−2
ultra / 1080p 0−1 0−1
QHD / 1440p 0−1 0−1
low / 720p 10−12 10−12
medium / 1080p 2−3 2−3
GeForce GT 640M and GRID K220Q have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  GeForce GT 640M GRID K220Q
Architecture Kepler Kepler
Code name N13P-GS GK104
Type Laptop Workstation
Release date 22 March 2012 2 July 2014
Pipelines 384 1536
Core clock speed 745 MHz
Boost Clock 645 MHz
Transistor count 1,270 million 3,540 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 95.36
Floating-point performance 480.0 gflops 2,289 gflops
Memory bus width 128bit 256 Bit
Memory clock speed 1800 - 4000 MHz 5000 MHz
Memory bandwidth 160.0 GB/s
Shared memory -
DirectX 12 API 12 (11_0)
Shader Model 5.1 5.1
OpenGL 4.5 4.6
OpenCL 1.1 1.2
Vulkan 1.1.126 1.1.126
CUDA + 3.0
CUDA cores 384
Bus support PCI Express 2.0, PCI Express 3.0
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
3D Blu-Ray +
Bitcoin / BTC (SHA256) 18 Mh/s
Laptop size medium sized
Optimus +
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