Radeon HD 4870 vs Radeon R8 M445DX

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 4870 and Radeon R8 M445DX. 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 R8 M445DX. 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 R8 M445DX is a Laptop Graphics Card

Note: Radeon R8 M445DX 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 R8 M445DX here:

Main Specs

  Radeon HD 4870 Radeon R8 M445DX
Power consumption (TDP) 150 Watt
Interface PCIe 2.0 x16 IGP
Supplementary power connectors 2x 6-pin
Memory type GDDR5 DDR4/DDR3
Maximum RAM amount 1 GB
Display Connectors 2x DVI, 1x S-Video No outputs
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  • Radeon HD 4870 is connected by PCIe 2.0 x16, and Radeon R8 M445DX uses IGP interface.
  • Radeon HD 4870 is used in Desktops, and Radeon R8 M445DX - in Laptops.
  • Radeon HD 4870 is build with TeraScale architecture, and Radeon R8 M445DX - with GCN.
  • Core clock speed of Radeon HD 4870 is 30 MHz higher, than Radeon R8 M445DX.
  • Radeon HD 4870 is manufactured by 55 nm process technology, and Radeon R8 M445DX - by 28 nm process technology.
  • Memory clock speed of Radeon HD 4870 is 2667 MHz higher, than Radeon R8 M445DX.

Game benchmarks

high / 1080p 3−4 0−1
ultra / 1080p 1−2
QHD / 1440p 0−1 0−1
low / 720p 14−16 1−2
medium / 1080p 6−7 0−1
The average gaming FPS of Radeon HD 4870 in Assassin's Creed Odyssey is 1400% more, than Radeon R8 M445DX.

Full Specs

  Radeon HD 4870 Radeon R8 M445DX
Architecture TeraScale GCN
Code name RV770 Meso
Type Desktop Laptop
Release date 25 June 2008 1 June 2016
Pipelines 800 704
Core clock speed 750 MHz 720 / 1020 MHz
Boost Clock 1021 MHz
Transistor count 956 million 1,550 million
Manufacturing process technology 55 nm 28 nm
Texture fill rate 30.00 20.42
Floating-point performance 1,200.0 gflops
Length 250 mm
Memory bus width 256 Bit 128 + 64 Bit
Memory clock speed 3600 MHz 933 / 1000 MHz
Memory bandwidth 115.2 GB/s
Shared memory -
DirectX 10.1 (10_1) 12 (12_0)
Shader Model 4.1 6.0
OpenGL 3.3 4.6
OpenCL 1.1 2.0
Vulkan N/A 1.2.131
Laptop size medium sized
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