GeForce 840A vs GeForce GTX 285

When comparing GeForce 840A and GeForce GTX 285, 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 GeForce GTX 285 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Main Specs

  GeForce 840A GeForce GTX 285
Power consumption (TDP) 33 Watt 204 Watt
Interface PCIe 3.0 x8 PCIe 2.0 x16
Supplementary power connectors 2x 6-pin
Memory type DDR3 GDDR3
Maximum RAM amount 2 GB 1 GB
Display Connectors No outputs 2x DVI, 1x S-Video
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  • GeForce GTX 285 has 518% more power consumption, than GeForce 840A.
  • GeForce 840A is connected by PCIe 3.0 x8, and GeForce GTX 285 uses PCIe 2.0 x16 interface.
  • GeForce 840A has 1 GB more memory, than GeForce GTX 285.
  • Both cards are used in Desktops.
  • GeForce 840A is build with Maxwell architecture, and GeForce GTX 285 - with Tesla 2.0.
  • Core clock speed of GeForce GTX 285 is 447 MHz higher, than GeForce 840A.
  • GeForce 840A is manufactured by 28 nm process technology, and GeForce GTX 285 - by 55 nm process technology.
  • Memory clock speed of GeForce 840A is 760 MHz higher, than GeForce GTX 285.

Game benchmarks

high / 1080p 3−4 7−8
ultra / 1080p 2−3 4−5
QHD / 1440p 0−1 0−1
low / 720p 14−16 16−18
medium / 1080p 5−6 9−10
The average gaming FPS of GeForce GTX 285 in Assassin's Creed Odyssey is 50% more, than GeForce 840A.

Full Specs

  GeForce 840A GeForce GTX 285
Architecture Maxwell Tesla 2.0
Code name GM108 GT200B
Type Desktop Desktop
Release date 17 March 2014 23 December 2008
Pipelines 384 240
Core clock speed 1029 MHz 1476 MHz
Boost Clock 1124 MHz
Transistor count 1,400 million
Manufacturing process technology 28 nm 55 nm
Texture fill rate 17.98 51.8 billion/sec
Floating-point performance 863.2 gflops 708.5 gflops
Length 10.5" (267 mm) (26.7 cm)
Memory bus width 64 Bit 512 Bit
Memory clock speed 2002 MHz 1242 MHz
Memory bandwidth 16.02 GB/s 159.0 GB/s
DirectX 12 (11_0) 11.1 (10_0)
Shader Model 5.1 4.0
OpenGL 4.6 2.1
OpenCL 1.2 1.1
Vulkan 1.1.126 N/A
CUDA 5.0 +
CUDA cores 240
Height 4.376" (111 mm) (11.1 cm)
SLI options +
Multi monitor support +
HDMI +
Maximum VGA resolution 2048x1536
Audio input for HDMI S/PDIF
High Dynamic-Range Lighting (HDRR) 128bit
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