GeForce 940M vs Radeon HD 7870 XT

Find out if it is worth upgrading your current GPU setup by comparing GeForce 940M and Radeon HD 7870 XT. 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 940M and Radeon HD 7870 XT. 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 HD 7870 XT

GeForce 940M is a Laptop Graphics Card

Note: GeForce 940M 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 940M here:

Main Specs

  GeForce 940M Radeon HD 7870 XT
Power consumption (TDP) 75 Watt 185 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Supplementary power connectors 2x 6-pin
Memory type DDR3 GDDR5
Maximum RAM amount 4 GB 2 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 7870 XT has 146% more power consumption, than GeForce 940M.
  • GeForce 940M is connected by PCIe 3.0 x8, and Radeon HD 7870 XT uses PCIe 3.0 x16 interface.
  • GeForce 940M has 2 GB more memory, than Radeon HD 7870 XT.
  • GeForce 940M is used in Laptops, and Radeon HD 7870 XT - in Desktops.
  • GeForce 940M is build with Maxwell architecture, and Radeon HD 7870 XT - with GCN 1.0.
  • Core clock speed of GeForce 940M is 147 MHz higher, than Radeon HD 7870 XT.
  • GeForce 940M and Radeon HD 7870 XT are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon HD 7870 XT is 4000 MHz higher, than GeForce 940M.

Game benchmarks

high / 1080p 2−3 35−40
ultra / 1080p 1−2 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 12−14 60−65
medium / 1080p 4−5 40−45
The average gaming FPS of Radeon HD 7870 XT in Assassin's Creed Odyssey is 720% more, than GeForce 940M.

Full Specs

  GeForce 940M Radeon HD 7870 XT
Architecture Maxwell GCN 1.0
Code name N16S-GT-S/B Tahiti
Type Laptop Desktop
Release date 12 March 2015 19 November 2012
Pipelines 384 1536
Core clock speed 1072 MHz 925 MHz
Boost Clock 1176 MHz 975 MHz
Transistor count 1,870 million 4,313 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 28.22 93.60
Floating-point performance 903.2 gflops 2,995 gflops
Length 267 mm
Memory bus width 64 Bit 256 Bit
Memory clock speed 2000 MHz 6000 MHz
Memory bandwidth 14.4 GB/s 192.0 GB/s
Shared memory -
DirectX 12 (11_0) 12 (11_1)
Shader Model 5.1 5.1
OpenGL 4.5 4.6
OpenCL 1.2 1.2
Vulkan 1.1.126 1.2.131
CUDA +
Bus support PCI Express 3.0
Bitcoin / BTC (SHA256) 101 Mh/s 346 Mh/s
Laptop size medium sized
Optimus +
Ethereum / ETH (DaggerHashimoto) 14.5 Mh/s
GPU Boost 2.0
GameWorks +
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