GeForce GT 640M vs Radeon HD 7730M

In this comparison between GeForce GT 640M and Radeon HD 7730M you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GT 640M will be the best choice, for others Radeon HD 7730M will be their preference. Study the comparison tables below and make your choice.

GeForce GT 640M and Radeon HD 7730M are Laptop Graphics Cards

Note: GeForce GT 640M and Radeon HD 7730M 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 or Radeon HD 7730M here:

Main Specs

  GeForce GT 640M Radeon HD 7730M
Power consumption (TDP) 32 Watt 25 Watt
Interface PCIe 3.0 x16 PCIe 2.0 x16
Memory type DDR3\GDDR5 DDR3
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
  Check Price Check Price
  • GeForce GT 640M has 28% more power consumption, than Radeon HD 7730M.
  • GeForce GT 640M is connected by PCIe 3.0 x16, and Radeon HD 7730M uses PCIe 2.0 x16 interface.
  • GeForce GT 640M and Radeon HD 7730M have maximum RAM of 2 GB.
  • Both cards are used in Laptops.
  • GeForce GT 640M is build with Kepler architecture, and Radeon HD 7730M - with GCN.
  • GeForce GT 640M and Radeon HD 7730M are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GT 640M and Radeon HD 7730M is 1800 MHz.

Game benchmarks

high / 1080p 0−1 0−1
ultra / 1080p 0−1
QHD / 1440p 0−1 0−1
low / 720p 10−12 1−2
medium / 1080p 2−3 0−1
The average gaming FPS of GeForce GT 640M in Assassin's Creed Odyssey is 1000% more, than Radeon HD 7730M.

Full Specs

  GeForce GT 640M Radeon HD 7730M
Architecture Kepler GCN
Code name N13P-GS Lombok GL
Type Laptop Laptop
Release date 22 March 2012 24 April 2012
Pipelines 384 512
Core clock speed 575 MHz
Boost Clock 645 MHz 675 MHz
Transistor count 1,270 million 1,500 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 21.60
Floating-point performance 480.0 gflops 691.2 gflops
Memory bus width 128bit 128 Bit
Memory clock speed 1800 - 4000 MHz 1800 MHz
Memory bandwidth 28.8 GB/s
Shared memory - -
DirectX 12 API 12 (11_1)
Shader Model 5.1 5.1
OpenGL 4.5 4.6
OpenCL 1.1 1.2
Vulkan 1.1.126 1.2.131
CUDA +
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 70 Mh/s
Laptop size medium sized medium sized
Optimus +
  Check Price Check Price