Mobility Radeon HD 4830 vs UHD Graphics 620

When choosing between Mobility Radeon HD 4830 and UHD Graphics 620, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Mobility Radeon HD 4830 and UHD Graphics 620.

Mobility Radeon HD 4830 and UHD Graphics 620 are Laptop Graphics Cards

Note: Mobility Radeon HD 4830 and UHD Graphics 620 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 Mobility Radeon HD 4830 or UHD Graphics 620 here:

Main Specs

  Mobility Radeon HD 4830 UHD Graphics 620
Power consumption (TDP) 15 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x1
Memory type GDDR3, DDR3 LPDDR3/DDR4
Maximum RAM amount 1 GB 32 GB
Display Connectors No outputs No outputs
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  • Mobility Radeon HD 4830 is connected by PCIe 2.0 x16, and UHD Graphics 620 uses PCIe 3.0 x1 interface.
  • UHD Graphics 620 has 31 GB more memory, than Mobility Radeon HD 4830.
  • Both cards are used in Laptops.
  • Mobility Radeon HD 4830 is build with Terascale 1 architecture, and UHD Graphics 620 - with Gen. 9.5.
  • Core clock speed of Mobility Radeon HD 4830 is 250 MHz higher, than UHD Graphics 620.
  • Mobility Radeon HD 4830 is manufactured by 40 nm process technology, and UHD Graphics 620 - by 14 nm process technology.

Game benchmarks

high / 1080p 0−1 2−3
ultra / 1080p 0−1 0−1
QHD / 1440p 0−1 0−1
low / 720p 10−11 12−14
medium / 1080p 1−2 3−4
The average gaming FPS of UHD Graphics 620 in Assassin's Creed Odyssey is 33% more, than Mobility Radeon HD 4830.

Full Specs

  Mobility Radeon HD 4830 UHD Graphics 620
Architecture Terascale 1 Gen. 9.5
Code name M97 Kaby-Lake-Refresh GT2
Type Laptop Laptop
Release date 3 March 2009 1 September 2017
Pipelines 640 24
Core clock speed 550 MHz 300 MHz
Boost Clock 1150 MHz
Transistor count 826 million 189 million
Manufacturing process technology 40 nm 14 nm
Texture fill rate 17.60 27.60
Floating-point performance 704.0 gflops
Memory bus width 128 Bit 64/128 Bit
Memory clock speed 700 MHz
Memory bandwidth 44.8 GB/s
Shared memory - +
DirectX 10.1 (10_1) 12 (12_1)
Shader Model 4.1 6.4
OpenGL 3.3 4.6
OpenCL 1.1 2.1
Vulkan N/A 1.1.103
Laptop size large
Quick Sync +
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