Quadro K4000M vs Radeon RX 640

When comparing Quadro K4000M and Radeon RX 640, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Quadro K4000M and Radeon RX 640 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Quadro K4000M and Radeon RX 640 are Laptop Graphics Cards

Note: Quadro K4000M and Radeon RX 640 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 Quadro K4000M or Radeon RX 640 here:

Main Specs

  Quadro K4000M Radeon RX 640
Power consumption (TDP) 100 Watt 50 Watt
Interface MXM-B (3.0) PCIe 3.0 x8
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 4 GB 4 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
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  • Quadro K4000M has 100% more power consumption, than Radeon RX 640.
  • Quadro K4000M is connected by MXM-B (3.0), and Radeon RX 640 uses PCIe 3.0 x8 interface.
  • Quadro K4000M and Radeon RX 640 have maximum RAM of 4 GB.
  • Quadro K4000M is used in Mobile workstations, and Radeon RX 640 - in Laptops.
  • Quadro K4000M is build with Kepler architecture, and Radeon RX 640 - with Polaris.
  • Core clock speed of Radeon RX 640 is 618 MHz higher, than Quadro K4000M.
  • Quadro K4000M is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
  • Memory clock speed of Radeon RX 640 is 3200 MHz higher, than Quadro K4000M.

Game benchmarks

high / 1080p 10−11 5−6
ultra / 1080p 6−7 3−4
QHD / 1440p 1−2 2−3
low / 720p 21−24 16−18
medium / 1080p 12−14 7−8
The average gaming FPS of Quadro K4000M in Assassin's Creed Odyssey is 42% more, than Radeon RX 640.

Full Specs

  Quadro K4000M Radeon RX 640
Architecture Kepler Polaris
Code name N14E-Q3 Polaris 12
Type Mobile workstation Laptop
Release date 1 June 2012 12 August 2019
Pipelines 960 640
Core clock speed 600 MHz 1218 MHz
Boost Clock 1218 MHz
Transistor count 3,540 million 2,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 48.08 38.98
Floating-point performance 1,154 gflops
Memory bus width 256 Bit 64 Bit
Memory clock speed 2800 MHz 6000 MHz
Memory bandwidth 89.6 GB/s 112.0 GB/s
Shared memory - -
DirectX 12 (11_0) 12 (12_0)
Shader Model 5.1 6.4
OpenGL 4.6 4.6
OpenCL 1.2 2.0
Vulkan 1.1.126 1.2.131
CUDA +
FreeSync +
Bitcoin / BTC (SHA256) 37 Mh/s
Laptop size large large
Optimus +
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