Mobility Radeon HD 4830 vs Radeon HD 7850

When comparing Mobility Radeon HD 4830 and Radeon HD 7850, 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 Mobility Radeon HD 4830 and Radeon HD 7850 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Mobility Radeon HD 4830 is a Laptop Graphics Card

Note: Mobility Radeon HD 4830 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 Mobility Radeon HD 4830 here:

Main Specs

  Mobility Radeon HD 4830 Radeon HD 7850
Power consumption (TDP) 225 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 1x 6-pin
Memory type GDDR3, DDR3 GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Mobility Radeon HD 4830 is connected by PCIe 2.0 x16, and Radeon HD 7850 uses PCIe 3.0 x16 interface.
  • Radeon HD 7850 has 1 GB more memory, than Mobility Radeon HD 4830.
  • Mobility Radeon HD 4830 is used in Laptops, and Radeon HD 7850 - in Desktops.
  • Mobility Radeon HD 4830 is build with Terascale 1 architecture, and Radeon HD 7850 - with GCN 1.0.
  • Mobility Radeon HD 4830 is manufactured by 40 nm process technology, and Radeon HD 7850 - by 28 nm process technology.
  • Memory clock speed of Radeon HD 7850 is 500 MHz higher, than Mobility Radeon HD 4830.

Game benchmarks

high / 1080p 0−1 18−20
ultra / 1080p 0−1 10−12
QHD / 1440p 0−1 5−6
4K / 2160p 4−5
low / 720p 10−11 35−40
medium / 1080p 1−2 24−27
The average gaming FPS of Radeon HD 7850 in Assassin's Creed Odyssey is 416% more, than Mobility Radeon HD 4830.

Full Specs

  Mobility Radeon HD 4830 Radeon HD 7850
Architecture Terascale 1 GCN 1.0
Code name M97 Pitcairn
Type Laptop Desktop
Release date 3 March 2009 5 March 2012
Pipelines 640 1024
Core clock speed 550 MHz
Boost Clock 1000 MHz
Transistor count 826 million 2,800 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 17.60 55.04
Floating-point performance 704.0 gflops 1,761 gflops
Length 210 mm
Memory bus width 128 Bit 256 Bit
Memory clock speed 700 MHz 1200 MHz
Memory bandwidth 44.8 GB/s 153.6 GB/s
Shared memory -
DirectX 10.1 (10_1)
Shader Model 4.1 5.1
OpenGL 3.3 4.6
OpenCL 1.1 1.2
Vulkan N/A
FreeSync +
Bus support PCIe 2.1 x16
HDMI +
Bitcoin / BTC (SHA256) 249 Mh/s
Laptop size large
Eyefinity +
Design reference
CrossFire +
Ethereum / ETH (DaggerHashimoto) 12.5 Mh/s
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