GeForce GT 640M LE vs Radeon R7 Carrizo

If you are going to buy a new graphics card and are choosing between GeForce GT 640M LE and Radeon R7 Carrizo, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GT 640M LE stacks up against Radeon R7 Carrizo, check out specs charts below.

GeForce GT 640M LE and Radeon R7 Carrizo are Laptop Graphics Cards

Note: GeForce GT 640M LE and Radeon R7 Carrizo are only used in laptop graphics. They have 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 LE or Radeon R7 Carrizo here:

Main Specs

  GeForce GT 640M LE Radeon R7 Carrizo
Power consumption (TDP) 20 Watt 12-35 Watt
Interface PCIe 2.0 x16
Memory type DDR3\DDR5
Maximum RAM amount 2 GB
Display Connectors No outputs
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  • GeForce GT 640M LE has 66% more power consumption, than Radeon R7 Carrizo.
  • Both cards are used in Laptops.
  • GeForce GT 640M LE is build with Fermi / Kepler architecture, and Radeon R7 Carrizo - with GCN 1.2/2.0.
  • GeForce GT 640M LE and Radeon R7 Carrizo are manufactured by 28 nm process technology.

Game benchmarks

high / 1080p 0−1 2−3
ultra / 1080p 0−1
QHD / 1440p 0−1 0−1
low / 720p 1−2 12−14
medium / 1080p 0−1 5−6
The average gaming FPS of Radeon R7 Carrizo in Assassin's Creed Odyssey is 1200% more, than GeForce GT 640M LE.

Full Specs

  GeForce GT 640M LE Radeon R7 Carrizo
Architecture Fermi / Kepler GCN 1.2/2.0
Code name N13P-LP Carrizo
Type Laptop Laptop
Release date 22 March 2012 4 June 2015
Pipelines 384 512
Boost Clock 800 MHz
Transistor count 585 million 2410 Million
Manufacturing process technology 28 nm 28 nm
Floating-point performance 384.0 gflops
Memory bus width 128bit 64/128 Bit
Memory clock speed 1800 - 4000 MHz
Shared memory - +
DirectX 12 API DirectX 12 (FL 12_0)
Shader Model 5.1
OpenGL 4.5
OpenCL 1.1
Vulkan N/A
CUDA +
CUDA cores Up to 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) 14 Mh/s
Laptop size medium sized medium sized
Optimus +
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