GeForce GTX 850M vs Radeon HD 4870

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 850M and Radeon HD 4870. 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 GeForce GTX 850M and Radeon HD 4870. 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.

GeForce GTX 850M is a Laptop Graphics Card

Note: GeForce GTX 850M 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 GTX 850M here:

Main Specs

  GeForce GTX 850M Radeon HD 4870
Power consumption (TDP) 45 Watt 150 Watt
Interface PCIe 3.0 x16 PCIe 2.0 x16
Supplementary power connectors 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 233% more power consumption, than GeForce GTX 850M.
  • GeForce GTX 850M is connected by PCIe 3.0 x16, and Radeon HD 4870 uses PCIe 2.0 x16 interface.
  • GeForce GTX 850M has 3 GB more memory, than Radeon HD 4870.
  • GeForce GTX 850M is used in Laptops, and Radeon HD 4870 - in Desktops.
  • GeForce GTX 850M is build with Maxwell architecture, and Radeon HD 4870 - with TeraScale.
  • GeForce GTX 850M is manufactured by 28 nm process technology, and Radeon HD 4870 - by 55 nm process technology.

Game benchmarks

high / 1080p 12−14 3−4
ultra / 1080p 8−9 1−2
QHD / 1440p 2−3 0−1
low / 720p 27−30 14−16
medium / 1080p 16−18 6−7
The average gaming FPS of GeForce GTX 850M in Assassin's Creed Odyssey is 166% more, than Radeon HD 4870.

Full Specs

  GeForce GTX 850M Radeon HD 4870
Architecture Maxwell TeraScale
Code name N15P-GT RV770
Type Laptop Desktop
Release date 12 March 2014 25 June 2008
Pipelines 640 800
Core clock speed 750 MHz
Transistor count 1,870 million 956 million
Manufacturing process technology 28 nm 55 nm
Texture fill rate 36.08 30.00
Floating-point performance 1,155 gflops 1,200.0 gflops
Length 250 mm
Memory bus width 128 Bit 256 Bit
Memory clock speed 3600 MHz
Memory bandwidth 80.0 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 1.1 1.1
Vulkan 1.1.126 N/A
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
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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