Radeon HD 4830 vs Radeon HD 7850M

In this comparison between Radeon HD 4830 and Radeon HD 7850M you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Radeon HD 4830 will be the best choice, for others Radeon HD 7850M will be their preference. Study the comparison tables below and make your choice.

Radeon HD 7850M is a Laptop Graphics Card

Note: Radeon HD 7850M 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 Radeon HD 7850M here:

Main Specs

  Radeon HD 4830 Radeon HD 7850M
Power consumption (TDP) 95 Watt 40 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 1x 6-pin
Memory type GDDR3 GDDR5
Maximum RAM amount 512 MB 2 GB
Display Connectors 2x DVI, 1x S-Video No outputs
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  • Radeon HD 4830 has 137% more power consumption, than Radeon HD 7850M.
  • Radeon HD 4830 is connected by PCIe 2.0 x16, and Radeon HD 7850M uses PCIe 3.0 x16 interface.
  • Radeon HD 4830 has 510 GB more memory, than Radeon HD 7850M.
  • Radeon HD 4830 is used in Desktops, and Radeon HD 7850M - in Laptops.
  • Radeon HD 4830 is build with TeraScale architecture, and Radeon HD 7850M - with GCN.
  • Core clock speed of Radeon HD 7850M is 100 MHz higher, than Radeon HD 4830.
  • Radeon HD 4830 is manufactured by 55 nm process technology, and Radeon HD 7850M - by 28 nm process technology.
  • Memory clock speed of Radeon HD 7850M is 2200 MHz higher, than Radeon HD 4830.

Game benchmarks

high / 1080p 0−1 6−7
ultra / 1080p 0−1 3−4
QHD / 1440p 0−1 0−1
low / 720p 10−12 14−16
medium / 1080p 2−3 7−8
The average gaming FPS of Radeon HD 7850M in Assassin's Creed Odyssey is 83% more, than Radeon HD 4830.

Full Specs

  Radeon HD 4830 Radeon HD 7850M
Architecture TeraScale GCN
Code name RV770 Heathrow Pro
Type Desktop Laptop
Release date 21 October 2008 24 April 2012
Pipelines 640 640
Core clock speed 575 MHz 675 MHz
Transistor count 956 million 1,500 million
Manufacturing process technology 55 nm 28 nm
Texture fill rate 18.40 27.00
Floating-point performance 736.0 gflops 864.0 gflops
Length 246 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 1800 MHz 4000 MHz
Memory bandwidth 57.6 GB/s 64 GB/s
Shared memory -
DirectX 10.1 (10_1) 12 (11_1)
Shader Model 4.1 5.1
OpenGL 3.3 4.6
OpenCL 1.1 1.2
Vulkan N/A 1.2.131
Laptop size large
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