GeForce GTS 450 vs Iris Plus Graphics 645

When comparing GeForce GTS 450 and Iris Plus Graphics 645, 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 GeForce GTS 450 and Iris Plus Graphics 645 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Iris Plus Graphics 645 is a Laptop Graphics Card

Note: Iris Plus Graphics 645 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 Iris Plus Graphics 645 here:

Main Specs

  GeForce GTS 450 Iris Plus Graphics 645
Power consumption (TDP) 106 Watt 15 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x1
Supplementary power connectors 6-pin
Memory type GDDR5 DDR3/DDR4
Maximum RAM amount 1 GB
Display Connectors 2x DVI, 1x mini-HDMI No outputs
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  • GeForce GTS 450 has 606% more power consumption, than Iris Plus Graphics 645.
  • GeForce GTS 450 is connected by PCIe 2.0 x16, and Iris Plus Graphics 645 uses PCIe 3.0 x1 interface.
  • GeForce GTS 450 is used in Desktops, and Iris Plus Graphics 645 - in Laptops.
  • GeForce GTS 450 is build with Fermi architecture, and Iris Plus Graphics 645 - with Gen. 9.5 Coffee Lake.
  • Core clock speed of GeForce GTS 450 is 1266 MHz higher, than Iris Plus Graphics 645.
  • GeForce GTS 450 is manufactured by 40 nm process technology, and Iris Plus Graphics 645 - by 14 nm process technology.

Game benchmarks

high / 1080p 3−4 4−5
ultra / 1080p 1−2 2−3
QHD / 1440p 0−1 0−1
low / 720p 14−16 12−14
medium / 1080p 5−6 5−6
GeForce GTS 450 and Iris Plus Graphics 645 have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  GeForce GTS 450 Iris Plus Graphics 645
Architecture Fermi Gen. 9.5 Coffee Lake
Code name GF106 Kaby Lake GT3e
Type Desktop Laptop
Release date 13 September 2010 10 July 2019
Pipelines 192 48
Core clock speed 1566 MHz 300 MHz
Boost Clock 1150 MHz
Transistor count 1,170 million
Manufacturing process technology 40 nm 14 nm
Texture fill rate 25.1 billion/sec 50.40
Floating-point performance 601.3 gflops
Length 8.25" (210 mm) (21 cm)
Memory bus width 128 Bit
Memory clock speed 1804 (3608 data rate) MHz
Memory bandwidth 57.7 GB/s
Shared memory +
DirectX 12 (11_0) 12 (12_1)
Shader Model 5.1 6.4
OpenGL 4.2 4.6
OpenCL 1.1 2.1
Vulkan N/A 1.1.103
CUDA +
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) 40 Mh/s
Quick Sync +
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