Mobility Radeon HD 4830 vs Radeon HD 7870M

Find out if it is worth upgrading your current GPU setup by comparing Mobility Radeon HD 4830 and Radeon HD 7870M. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Mobility Radeon HD 4830 and Radeon HD 7870M. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Mobility Radeon HD 4830 and Radeon HD 7870M are Laptop Graphics Cards

Note: Mobility Radeon HD 4830 and Radeon HD 7870M 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 7870M here:

Main Specs

  Mobility Radeon HD 4830 Radeon HD 7870M
Power consumption (TDP) 45 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
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 7870M uses PCIe 3.0 x16 interface.
  • Radeon HD 7870M 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 7870M - with GCN.
  • Core clock speed of Radeon HD 7870M is 250 MHz higher, than Mobility Radeon HD 4830.
  • Mobility Radeon HD 4830 is manufactured by 40 nm process technology, and Radeon HD 7870M - by 28 nm process technology.
  • Memory clock speed of Radeon HD 7870M is 3300 MHz higher, than Mobility Radeon HD 4830.

Game benchmarks

high / 1080p 0−1 6−7
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 7870M in Assassin's Creed Odyssey is 100% more, than Mobility Radeon HD 4830.

Full Specs

  Mobility Radeon HD 4830 Radeon HD 7870M
Architecture Terascale 1 GCN
Code name M97 Heathrow XT
Type Laptop Laptop
Release date 3 March 2009 24 April 2012
Pipelines 640 640
Core clock speed 550 MHz 800 MHz
Transistor count 826 million 1,500 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 17.60 32.00
Floating-point performance 704.0 gflops 1,024 gflops
Memory bus width 128 Bit 128 Bit
Memory clock speed 700 MHz 4000 MHz
Memory bandwidth 44.8 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 large
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