GeForce GT 640 vs GeForce GTS 450

Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640 and GeForce GTS 450. 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 640 and GeForce GTS 450. 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.

Main Specs

  GeForce GT 640 GeForce GTS 450
Power consumption (TDP) 65 Watt 106 Watt
Interface PCIe 3.0 x16 PCIe 2.0 x16
Supplementary power connectors None 6-pin
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort 2x DVI, 1x mini-HDMI
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  • GeForce GTS 450 has 63% more power consumption, than GeForce GT 640.
  • GeForce GT 640 is connected by PCIe 3.0 x16, and GeForce GTS 450 uses PCIe 2.0 x16 interface.
  • GeForce GT 640 has 1 GB more memory, than GeForce GTS 450.
  • Both cards are used in Desktops.
  • GeForce GT 640 is build with Kepler architecture, and GeForce GTS 450 - with Fermi.
  • Core clock speed of GeForce GTS 450 is 664 MHz higher, than GeForce GT 640.
  • GeForce GT 640 is manufactured by 28 nm process technology, and GeForce GTS 450 - by 40 nm process technology.
  • GeForce GT 640 is 137 mm longer, than GeForce GTS 450.
  • Memory clock speed of GeForce GTS 450 is 22 MHz higher, than GeForce GT 640.

Game benchmarks

high / 1080p 2−3 3−4
ultra / 1080p 1−2 1−2
QHD / 1440p 0−1 0−1
low / 720p 14−16 14−16
medium / 1080p 5−6 5−6
GeForce GT 640 and GeForce GTS 450 have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  GeForce GT 640 GeForce GTS 450
Architecture Kepler Fermi
Code name GK107 GF106
Type Desktop Desktop
Release date 5 June 2012 13 September 2010
Pipelines 384 192
Core clock speed 902 MHz 1566 MHz
Transistor count 1,270 million 1,170 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 28.86 25.1 billion/sec
Floating-point performance 692.7 gflops 601.3 gflops
Length 145 mm 8.25" (210 mm) (21 cm)
Memory bus width 128 Bit 128 Bit
Memory clock speed 1782 MHz 1804 (3608 data rate) MHz
Memory bandwidth 28.51 GB/s 57.7 GB/s
DirectX 12 (11_0) 12 (11_0)
Shader Model 5.1 5.1
OpenGL 4.6 4.2
OpenCL 1.2 1.1
Vulkan 1.1.126 N/A
CUDA 3.0 +
CUDA cores 192
Bus support PCI-E 2.0 x 16
Height 4.376" (111 mm) (11.1 cm)
SLI options +
HDMI +
Maximum VGA resolution 2048x1536
Audio input for HDMI Internal
Bitcoin / BTC (SHA256) 24 Mh/s 40 Mh/s
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