Radeon HD 4870 vs Radeon RX 480 mobile

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 4870 and Radeon RX 480 mobile. 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 Radeon HD 4870 and Radeon RX 480 mobile. 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.

Radeon RX 480 mobile is a Laptop Graphics Card

Note: Radeon RX 480 mobile 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 RX 480 mobile here:

Main Specs

  Radeon HD 4870 Radeon RX 480 mobile
Power consumption (TDP) 150 Watt 100 Watt
Interface PCIe 2.0 x16 MXM-B (3.0)
Supplementary power connectors 2x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 8 GB
Display Connectors 2x DVI, 1x S-Video No outputs
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  • Radeon HD 4870 has 50% more power consumption, than Radeon RX 480 mobile.
  • Radeon HD 4870 is connected by PCIe 2.0 x16, and Radeon RX 480 mobile uses MXM-B (3.0) interface.
  • Radeon RX 480 mobile has 7 GB more memory, than Radeon HD 4870.
  • Radeon HD 4870 is used in Desktops, and Radeon RX 480 mobile - in Laptops.
  • Radeon HD 4870 is build with TeraScale architecture, and Radeon RX 480 mobile - with Polaris.
  • Radeon HD 4870 is manufactured by 55 nm process technology, and Radeon RX 480 mobile - by 14 nm process technology.
  • Memory clock speed of Radeon RX 480 mobile is 4400 MHz higher, than Radeon HD 4870.

Game benchmarks

high / 1080p 3−4 12−14
ultra / 1080p 1−2 7−8
QHD / 1440p 0−1 0−1
low / 720p 14−16 27−30
medium / 1080p 6−7 14−16
The average gaming FPS of Radeon RX 480 mobile in Assassin's Creed Odyssey is 166% more, than Radeon HD 4870.

Full Specs

  Radeon HD 4870 Radeon RX 480 mobile
Architecture TeraScale Polaris
Code name RV770 Polaris
Type Desktop Laptop
Release date 25 June 2008 1 August 2016
Pipelines 800 2304
Core clock speed 750 MHz
Boost Clock 1077 MHz
Transistor count 956 million 5,700 million
Manufacturing process technology 55 nm 14 nm
Texture fill rate 30.00 155.1
Floating-point performance 1,200.0 gflops 4,963 gflops
Length 250 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 3600 MHz 8000 MHz
Memory bandwidth 115.2 GB/s 256.0 GB/s
Shared memory -
DirectX 10.1 (10_1) 12 (12_0)
Shader Model 4.1 6.4
OpenGL 3.3 4.6
OpenCL 1.1 2.0
Vulkan N/A 1.2.131
Laptop size large
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