GeForce 840A vs Radeon HD 7670A

When comparing GeForce 840A and Radeon HD 7670A, 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 840A and Radeon HD 7670A is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
GeForce 840A
Radeon HD 7670A

Main Specs

  GeForce 840A Radeon HD 7670A
Power consumption (TDP) 33 Watt 45 Watt
Interface PCIe 3.0 x8 MXM-A (3.0)
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors No outputs No outputs
 
  • Radeon HD 7670A has 36% more power consumption, than GeForce 840A.
  • GeForce 840A is connected by PCIe 3.0 x8, and Radeon HD 7670A uses MXM-A (3.0) interface.
  • GeForce 840A has 1 GB more memory, than Radeon HD 7670A.
  • Both cards are used in Desktops.
  • GeForce 840A is build with Maxwell architecture, and Radeon HD 7670A - with TeraScale 2.
  • Core clock speed of GeForce 840A is 429 MHz higher, than Radeon HD 7670A.
  • GeForce 840A is manufactured by 28 nm process technology, and Radeon HD 7670A - by 40 nm process technology.
  • Memory clock speed of Radeon HD 7670A is 1998 MHz higher, than GeForce 840A.

Game benchmarks

high / 1080p 3−4 1−2
ultra / 1080p 2−3 0−1
QHD / 1440p 0−1 0−1
low / 720p 14−16 12−14
medium / 1080p 5−6 3−4
The average gaming FPS of GeForce 840A in Assassin's Creed Odyssey is 33% more, than Radeon HD 7670A.

Full Specs

  GeForce 840A Radeon HD 7670A
Architecture Maxwell TeraScale 2
Code name GM108 Turks
Type Desktop Desktop
Release date 17 March 2014 5 January 2012
Pipelines 384 480
Core clock speed 1029 MHz 600 MHz
Boost Clock 1124 MHz
Transistor count 716 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 17.98 14.40
Floating-point performance 863.2 gflops 576.0 gflops
Memory bus width 64 Bit 128 Bit
Memory clock speed 2002 MHz 4000 MHz
Memory bandwidth 16.02 GB/s 64 GB/s
DirectX 12 (11_0) 11.2 (11_0)
Shader Model 5.1 5.0
OpenGL 4.6 4.4
OpenCL 1.2 1.2
Vulkan 1.1.126 N/A
CUDA 5.0