Mobility Radeon HD 4830 vs Radeon HD 8770M

If you are going to buy a new graphics card and are choosing between Mobility Radeon HD 4830 and Radeon HD 8770M, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Mobility Radeon HD 4830 stacks up against Radeon HD 8770M, check out specs charts below.

Mobility Radeon HD 4830 and Radeon HD 8770M are Laptop Graphics Cards

Note: Mobility Radeon HD 4830 and Radeon HD 8770M 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 Radeon HD 8770M here:

Main Specs

  Mobility Radeon HD 4830 Radeon HD 8770M
Interface PCIe 2.0 x16 PCIe 3.0 x8
Memory type GDDR3, DDR3 GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors No outputs No outputs
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  • Mobility Radeon HD 4830 is connected by PCIe 2.0 x16, and Radeon HD 8770M uses PCIe 3.0 x8 interface.
  • Radeon HD 8770M has 1 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 Radeon HD 8770M - with GCN.
  • Core clock speed of Radeon HD 8770M is 225 MHz higher, than Mobility Radeon HD 4830.
  • Mobility Radeon HD 4830 is manufactured by 40 nm process technology, and Radeon HD 8770M - by 28 nm process technology.
  • Memory clock speed of Radeon HD 8770M is 3800 MHz higher, than Mobility Radeon HD 4830.

Game benchmarks

high / 1080p 0−1 7−8
ultra / 1080p 0−1 4−5
QHD / 1440p 0−1 0−1
low / 720p 10−11 16−18
medium / 1080p 1−2 8−9
The average gaming FPS of Radeon HD 8770M in Assassin's Creed Odyssey is 100% more, than Mobility Radeon HD 4830.

Full Specs

  Mobility Radeon HD 4830 Radeon HD 8770M
Architecture Terascale 1 GCN
Code name M97 Mars
Type Laptop Laptop
Release date 3 March 2009 16 November 2012
Pipelines 640 384
Core clock speed 550 MHz 775 MHz
Boost Clock 825 MHz
Transistor count 826 million 950 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 17.60 19.80
Floating-point performance 704.0 gflops 633.6 gflops
Memory bus width 128 Bit 128 Bit
Memory clock speed 700 MHz 4500 MHz
Memory bandwidth 44.8 GB/s 72 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 medium sized
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