Iris Plus Graphics 645 vs Radeon HD 4830

When comparing Iris Plus Graphics 645 and Radeon HD 4830, 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 Iris Plus Graphics 645 and Radeon HD 4830 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

  Iris Plus Graphics 645 Radeon HD 4830
Power consumption (TDP) 15 Watt 95 Watt
Interface PCIe 3.0 x1 PCIe 2.0 x16
Supplementary power connectors 1x 6-pin
Memory type DDR3/DDR4 GDDR3
Maximum RAM amount 512 MB
Display Connectors No outputs 2x DVI, 1x S-Video
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  • Radeon HD 4830 has 533% more power consumption, than Iris Plus Graphics 645.
  • Iris Plus Graphics 645 is connected by PCIe 3.0 x1, and Radeon HD 4830 uses PCIe 2.0 x16 interface.
  • Iris Plus Graphics 645 is used in Laptops, and Radeon HD 4830 - in Desktops.
  • Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Radeon HD 4830 - with TeraScale.
  • Core clock speed of Radeon HD 4830 is 275 MHz higher, than Iris Plus Graphics 645.
  • Iris Plus Graphics 645 is manufactured by 14 nm process technology, and Radeon HD 4830 - by 55 nm process technology.

Game benchmarks

high / 1080p 4−5 0−1
ultra / 1080p 2−3 0−1
QHD / 1440p 0−1 0−1
low / 720p 12−14 10−12
medium / 1080p 5−6 2−3
The average gaming FPS of Iris Plus Graphics 645 in Assassin's Creed Odyssey is 50% more, than Radeon HD 4830.

Full Specs

  Iris Plus Graphics 645 Radeon HD 4830
Architecture Gen. 9.5 Coffee Lake TeraScale
Code name Kaby Lake GT3e RV770
Type Laptop Desktop
Release date 10 July 2019 21 October 2008
Pipelines 48 640
Core clock speed 300 MHz 575 MHz
Boost Clock 1150 MHz
Transistor count 956 million
Manufacturing process technology 14 nm 55 nm
Texture fill rate 50.40 18.40
Floating-point performance 736.0 gflops
Length 246 mm
Memory bus width 256 Bit
Memory clock speed 1800 MHz
Memory bandwidth 57.6 GB/s
Shared memory +
DirectX 12 (12_1) 10.1 (10_1)
Shader Model 6.4 4.1
OpenGL 4.6 3.3
OpenCL 2.1 1.1
Vulkan 1.1.103 N/A
Quick Sync +
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