GeForce 940MX vs Radeon HD 4850 X2

If you are going to buy a new graphics card and are choosing between GeForce 940MX and Radeon HD 4850 X2, 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 GeForce 940MX stacks up against Radeon HD 4850 X2, check out specs charts below.
Radeon HD 4850 X2

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 4850 X2
Power consumption (TDP) 23 Watt 250 Watt
Interface PCIe 3.0 x8 PCIe 2.0 x16
Supplementary power connectors None 1x 6-pin + 1x 8-pin
Memory type DDR3, GDDR5 GDDR3
Maximum RAM amount 4 GB 512 MB
Display Connectors No outputs 4x DVI, 1x S-Video
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  • Radeon HD 4850 X2 has 986% more power consumption, than GeForce 940MX.
  • GeForce 940MX is connected by PCIe 3.0 x8, and Radeon HD 4850 X2 uses PCIe 2.0 x16 interface.
  • Radeon HD 4850 X2 has 508 GB more memory, than GeForce 940MX.
  • GeForce 940MX is used in Laptops, and Radeon HD 4850 X2 - in Desktops.
  • GeForce 940MX is build with Maxwell architecture, and Radeon HD 4850 X2 - with TeraScale.
  • Core clock speed of GeForce 940MX is 497 MHz higher, than Radeon HD 4850 X2.
  • GeForce 940MX is manufactured by 28 nm process technology, and Radeon HD 4850 X2 - by 55 nm process technology.
  • Memory clock speed of GeForce 940MX is 2010 MHz higher, than Radeon HD 4850 X2.

Game benchmarks

high / 1080p 7−8 3−4
ultra / 1080p 4−5 2−3
QHD / 1440p 0−1 0−1
low / 720p 16−18 14−16
medium / 1080p 8−9 5−6
The average gaming FPS of GeForce 940MX in Assassin's Creed Odyssey is 50% more, than Radeon HD 4850 X2.

Full Specs

  GeForce 940MX Radeon HD 4850 X2
Architecture Maxwell TeraScale
Code name N16S-GTR-B/S R700
Type Laptop Desktop
Release date 10 March 2016 7 November 2008
Pipelines 384 800
Core clock speed 1122 MHz 625 MHz
Boost Clock 1242 MHz
Transistor count 1,870 million 956 million
Manufacturing process technology 28 nm 55 nm
Texture fill rate 23.83 25.00
Floating-point performance 762.6 gflops 2x 1,000.0 gflops
Length 267 mm
Memory bus width 64 Bit 256 Bit
Memory clock speed 4000 MHz 1990 MHz
Memory bandwidth 40.1 GB/s 63.68 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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