GeForce 840A vs GeForce GTX 690

If you are going to buy a new graphics card and are choosing between GeForce 840A and GeForce GTX 690, 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 840A stacks up against GeForce GTX 690, check out specs charts below.

Main Specs

  GeForce 840A GeForce GTX 690
Power consumption (TDP) 33 Watt 300 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Supplementary power connectors Two 8-pin
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 4 GB (4 GB per GPU) GDDR5
Display Connectors No outputs 3x DVI, 1x mini-DisplayPort
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  • GeForce GTX 690 has 809% more power consumption, than GeForce 840A.
  • GeForce 840A is connected by PCIe 3.0 x8, and GeForce GTX 690 uses PCIe 3.0 x16 interface.
  • GeForce GTX 690 has 2 GB more memory, than GeForce 840A.
  • Both cards are used in Desktops.
  • GeForce 840A is build with Maxwell architecture, and GeForce GTX 690 - with Kepler.
  • Core clock speed of GeForce 840A is 114 MHz higher, than GeForce GTX 690.
  • GeForce 840A and GeForce GTX 690 are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GTX 690 is 4006 MHz higher, than GeForce 840A.

Game benchmarks

high / 1080p 3−4 35−40
ultra / 1080p 2−3 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 14−16 60−65
medium / 1080p 5−6 40−45
The average gaming FPS of GeForce GTX 690 in Assassin's Creed Odyssey is 583% more, than GeForce 840A.

Full Specs

  GeForce 840A GeForce GTX 690
Architecture Maxwell Kepler
Code name GM108 GK104
Type Desktop Desktop
Release date 17 March 2014 3 May 2012
Pipelines 384 1536
Core clock speed 1029 MHz 915 MHz
Boost Clock 1124 MHz 1019 MHz
Transistor count 3,540 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 17.98 234 billion/sec
Floating-point performance 863.2 gflops 2x 3,130 gflops
Length 11.0" (27.9 cm)
Memory bus width 64 Bit 512-bit (256-bit per GPU)
Memory clock speed 2002 MHz 6008 MHz
Memory bandwidth 16.02 GB/s 384 GB/s
DirectX 12 (11_0) 12 (11_0)
Shader Model 5.1 5.1
OpenGL 4.6 4.2
OpenCL 1.2 1.2
Vulkan 1.1.126 1.1.126
CUDA 5.0 +
CUDA cores 3072
Bus support PCI Express 3.0
Height 4.376" (11.1 cm)
SLI options +
Multi monitor support 4 displays
HDMI Yes (via dongle)
HDCP +
Maximum VGA resolution 2048x1536
Audio input for HDMI Internal
3D Blu-Ray +
3D Gaming +
3D Vision Live +
Bitcoin / BTC (SHA256) 156 Mh/s
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