GeForce 840M vs Radeon HD 5970

When comparing GeForce 840M and Radeon HD 5970, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce 840M and Radeon HD 5970 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce 840M is a Laptop Graphics Card

Note: GeForce 840M 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 840M here:

Main Specs

  GeForce 840M Radeon HD 5970
Power consumption (TDP) 33 Watt 294 Watt
Interface PCIe 3.0 x8 PCIe 2.0 x16
Supplementary power connectors 1x 6-pin + 1x 8-pin
Memory type DDR3 GDDR5
Maximum RAM amount 4 GB 1 GB
Display Connectors No outputs 2x DVI, 1x mini-DisplayPort
  Check Price
  • Radeon HD 5970 has 790% more power consumption, than GeForce 840M.
  • GeForce 840M is connected by PCIe 3.0 x8, and Radeon HD 5970 uses PCIe 2.0 x16 interface.
  • GeForce 840M has 3 GB more memory, than Radeon HD 5970.
  • GeForce 840M is used in Laptops, and Radeon HD 5970 - in Desktops.
  • GeForce 840M is build with Maxwell architecture, and Radeon HD 5970 - with TeraScale 2.
  • Core clock speed of GeForce 840M is 304 MHz higher, than Radeon HD 5970.
  • GeForce 840M is manufactured by 28 nm process technology, and Radeon HD 5970 - by 40 nm process technology.
  • Memory clock speed of Radeon HD 5970 is 2000 MHz higher, than GeForce 840M.

Game benchmarks

high / 1080p 1−2 10−12
ultra / 1080p 0−1 6−7
QHD / 1440p 0−1 1−2
low / 720p 12−14 24−27
medium / 1080p 3−4 14−16
The average gaming FPS of Radeon HD 5970 in Assassin's Creed Odyssey is 183% more, than GeForce 840M.

Full Specs

  GeForce 840M Radeon HD 5970
Architecture Maxwell TeraScale 2
Code name N15S-GT Hemlock
Type Laptop Desktop
Release date 12 March 2014 18 November 2009
Pipelines 384 1600
Core clock speed 1029 MHz 725 MHz
Boost Clock 1124 MHz
Transistor count 2,154 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 17.98 58.00
Floating-point performance 863.2 gflops 2x 2,320.0 gflops
Length 305 mm
Memory bus width 64 Bit 256 Bit
Memory clock speed 2000 MHz 4000 MHz
Memory bandwidth 16.02 GB/s 128.0 GB/s
Shared memory -
DirectX 12 (11_0) 11.2 (11_0)
Shader Model 5.1 5.0
OpenGL 4.5 4.4
OpenCL 1.2 1.2
Vulkan 1.1.126 N/A
CUDA +
Bus support PCI Express 2.0, PCI Express 3.0
Bitcoin / BTC (SHA256) 92 Mh/s
Laptop size medium sized
Optimus +
GPU Boost 2.0
GameWorks +
  Check Price