GeForce 940MX vs Radeon HD 4870

In this comparison between GeForce 940MX and Radeon HD 4870 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce 940MX will be the best choice, for others Radeon HD 4870 will be their preference. Study the comparison tables below and make your choice.

GeForce 940MX is a Laptop Graphics Card

Note: GeForce 940MX 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 GeForce 940MX here:

Main Specs

  GeForce 940MX Radeon HD 4870
Power consumption (TDP) 23 Watt 150 Watt
Interface PCIe 3.0 x8 PCIe 2.0 x16
Supplementary power connectors None 2x 6-pin
Memory type DDR3, GDDR5 GDDR5
Maximum RAM amount 4 GB 1 GB
Display Connectors No outputs 2x DVI, 1x S-Video
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  • Radeon HD 4870 has 552% more power consumption, than GeForce 940MX.
  • GeForce 940MX is connected by PCIe 3.0 x8, and Radeon HD 4870 uses PCIe 2.0 x16 interface.
  • GeForce 940MX has 3 GB more memory, than Radeon HD 4870.
  • GeForce 940MX is used in Laptops, and Radeon HD 4870 - in Desktops.
  • GeForce 940MX is build with Maxwell architecture, and Radeon HD 4870 - with TeraScale.
  • Core clock speed of GeForce 940MX is 372 MHz higher, than Radeon HD 4870.
  • GeForce 940MX is manufactured by 28 nm process technology, and Radeon HD 4870 - by 55 nm process technology.
  • Memory clock speed of GeForce 940MX is 400 MHz higher, than Radeon HD 4870.

Game benchmarks

high / 1080p 7−8 3−4
ultra / 1080p 4−5 1−2
QHD / 1440p 0−1 0−1
low / 720p 16−18 14−16
medium / 1080p 8−9 6−7
The average gaming FPS of GeForce 940MX in Assassin's Creed Odyssey is 50% more, than Radeon HD 4870.

Full Specs

  GeForce 940MX Radeon HD 4870
Architecture Maxwell TeraScale
Code name N16S-GTR-B/S RV770
Type Laptop Desktop
Release date 10 March 2016 25 June 2008
Pipelines 384 800
Core clock speed 1122 MHz 750 MHz
Boost Clock 1242 MHz
Transistor count 1,870 million 956 million
Manufacturing process technology 28 nm 55 nm
Texture fill rate 23.83 30.00
Floating-point performance 762.6 gflops 1,200.0 gflops
Length 250 mm
Memory bus width 64 Bit 256 Bit
Memory clock speed 4000 MHz 3600 MHz
Memory bandwidth 40.1 GB/s 115.2 GB/s
Shared memory -
DirectX 12 (11_0) 10.1 (10_1)
Shader Model 5.1 4.1
OpenGL 4.5 3.3
OpenCL 1.2 1.1
Vulkan 1.1 N/A
CUDA +
Bus support PCI Express 3.0
Bitcoin / BTC (SHA256) 102 Mh/s
Laptop size medium sized
Optimus +
GPU Boost 2.0
GameWorks +
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