GeForce GT 645M vs Radeon R9 370

In this comparison between GeForce GT 645M and Radeon R9 370 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 645M will be the best choice, for others Radeon R9 370 will be their preference. Study the comparison tables below and make your choice.

GeForce GT 645M is a Laptop Graphics Card

Note: GeForce GT 645M 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 645M here:

Main Specs

  GeForce GT 645M Radeon R9 370
Power consumption (TDP) 32 Watt 110 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors 1x 6-pin
Memory type DDR3\GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon R9 370 has 243% more power consumption, than GeForce GT 645M.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • GeForce GT 645M and Radeon R9 370 have maximum RAM of 2 GB.
  • GeForce GT 645M is used in Laptops, and Radeon R9 370 - in Desktops.
  • GeForce GT 645M is build with Kepler architecture, and Radeon R9 370 - with GCN 1.0.
  • GeForce GT 645M and Radeon R9 370 are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon R9 370 is 3800 MHz higher, than GeForce GT 645M.

Game benchmarks

high / 1080p 1−2 35−40
ultra / 1080p 0−1 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 12−14 60−65
medium / 1080p 2−3 40−45
The average gaming FPS of Radeon R9 370 in Assassin's Creed Odyssey is 840% more, than GeForce GT 645M.

Full Specs

  GeForce GT 645M Radeon R9 370
Architecture Kepler GCN 1.0
Code name N13P-GS Trinidad
Type Laptop Desktop
Release date 22 March 2012 5 May 2015
Pipelines 384 1280
Core clock speed 925 MHz
Boost Clock 975 MHz
Transistor count 1,270 million 2,800 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 22.7 billion/sec 78.00
Floating-point performance 544.5 gflops 2,496 gflops
Length 221 mm
Memory bus width 128bit 256 Bit
Memory clock speed 1800 MHz 5600 MHz
Memory bandwidth 179.2 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) 19 Mh/s 336 Mh/s
Laptop size medium sized
Optimus +
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