GeForce GTX 850M vs Radeon R9 M485X

If you are going to buy a new graphics card and are choosing between GeForce GTX 850M and Radeon R9 M485X, 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 GTX 850M stacks up against Radeon R9 M485X, check out specs charts below.

GeForce GTX 850M and Radeon R9 M485X are Laptop Graphics Cards

Note: GeForce GTX 850M and Radeon R9 M485X are only used in laptop graphics. They have 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 GTX 850M or Radeon R9 M485X here:

Main Specs

  GeForce GTX 850M Radeon R9 M485X
Power consumption (TDP) 45 Watt 250 Watt
Interface PCIe 3.0 x16 MXM-B (3.0)
Supplementary power connectors None
Memory type DDR3, GDDR5 GDDR5
Maximum RAM amount 4 GB 8 GB MB
Display Connectors No outputs No outputs
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  • Radeon R9 M485X has 455% more power consumption, than GeForce GTX 850M.
  • GeForce GTX 850M is connected by PCIe 3.0 x16, and Radeon R9 M485X uses MXM-B (3.0) interface.
  • Radeon R9 M485X has 4 GB more memory, than GeForce GTX 850M.
  • Both cards are used in Laptops.
  • GeForce GTX 850M is build with Maxwell architecture, and Radeon R9 M485X - with GCN 3.
  • GeForce GTX 850M and Radeon R9 M485X are manufactured by 28 nm process technology.

Game benchmarks

high / 1080p 12−14 24−27
ultra / 1080p 8−9 14−16
QHD / 1440p 2−3 10−11
4K / 2160p 6−7
low / 720p 27−30 45−50
medium / 1080p 16−18 30−35
The average gaming FPS of Radeon R9 M485X in Assassin's Creed Odyssey is 100% more, than GeForce GTX 850M.

Full Specs

  GeForce GTX 850M Radeon R9 M485X
Architecture Maxwell GCN 3
Code name N15P-GT Amethyst
Type Laptop Laptop
Release date 12 March 2014 14 May 2016
Pipelines 640 2048
Core clock speed 723 MHz
Transistor count 1,870 million 5,000 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 36.08 92.54
Floating-point performance 1,155 gflops 2,961 gflops
Memory bus width 128 Bit 256 Bit
Memory clock speed 5000 MHz
Memory bandwidth 80.0 GB/s 160.0 GB/s
Shared memory - -
DirectX 12 (11_0) 12 (12_0)
Shader Model 5.1 6.3
OpenGL 4.5 4.6
OpenCL 1.1 2.0
Vulkan 1.1.126 1.2.131
CUDA +
CUDA cores 640
Bus support PCI Express 2.0, PCI Express 3.0
SLI options +
HDMI +
Bitcoin / BTC (SHA256) 153 Mh/s
Laptop size medium sized large
Standard memory configuration DDR3 or GDDR5
eDP 1.2 signal support Up to 3840x2160
LVDS signal support Up to 1920x1200
DisplayPort Multimode (DP++) support Up to 3840x2160
HDCP content protection +
7.1 channel HD audio on HDMI +
TrueHD and DTS-HD audio bitstreaming +
H.264, VC1, MPEG2 1080p video decoder +
Optimus +
Ethereum / ETH (DaggerHashimoto) 1.8 Mh/s
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