Mobility Radeon HD 4830 vs Radeon R9 280

If you are going to buy a new graphics card and are choosing between Mobility Radeon HD 4830 and Radeon R9 280, 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 R9 280, check out specs charts below.

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 R9 280
Power consumption (TDP) 200 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 1 x 6-pin + 1 x 8-pin
Memory type GDDR3, DDR3 GDDR5
Maximum RAM amount 1 GB 3 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Mobility Radeon HD 4830 is connected by PCIe 2.0 x16, and Radeon R9 280 uses PCIe 3.0 x16 interface.
  • Radeon R9 280 has 2 GB more memory, than Mobility Radeon HD 4830.
  • Mobility Radeon HD 4830 is used in Laptops, and Radeon R9 280 - in Desktops.
  • Mobility Radeon HD 4830 is build with Terascale 1 architecture, and Radeon R9 280 - with GCN 1.0.
  • Mobility Radeon HD 4830 is manufactured by 40 nm process technology, and Radeon R9 280 - by 28 nm process technology.
  • Memory clock speed of Radeon R9 280 is 550 MHz higher, than Mobility Radeon HD 4830.

Game benchmarks

high / 1080p 0−1 35−40
ultra / 1080p 0−1 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 10−11 60−65
medium / 1080p 1−2 40−45
The average gaming FPS of Radeon R9 280 in Assassin's Creed Odyssey is 766% more, than Mobility Radeon HD 4830.

Full Specs

  Mobility Radeon HD 4830 Radeon R9 280
Architecture Terascale 1 GCN 1.0
Code name M97 Tahiti
Type Laptop Desktop
Release date 3 March 2009 4 March 2014
Pipelines 640 1792
Core clock speed 550 MHz
Boost Clock 933 MHz
Transistor count 826 million 4,313 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 17.60 104.5
Floating-point performance 704.0 gflops 3,344 gflops
Length 275 mm
Memory bus width 128 Bit 384 Bit
Memory clock speed 700 MHz 1250 MHz
Memory bandwidth 44.8 GB/s 240 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 3.0
HDMI +
Bitcoin / BTC (SHA256) 408 Mh/s
Laptop size large
Eyefinity +
HD3D +
TrueAudio +
Design reference
CrossFire +
DDMA audio +
Ethereum / ETH (DaggerHashimoto) 21.5 Mh/s
LiquidVR +
TressFX +
UVD +
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