GeForce 840A vs Radeon R7 250X

Find out if it is worth upgrading your current GPU setup by comparing GeForce 840A and Radeon R7 250X. 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 840A and Radeon R7 250X. 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.

Main Specs

  GeForce 840A Radeon R7 250X
Power consumption (TDP) 33 Watt 80 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Supplementary power connectors 1 x 6-pin
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 2x mini-DisplayPort
  Check Price
  • Radeon R7 250X has 142% more power consumption, than GeForce 840A.
  • GeForce 840A is connected by PCIe 3.0 x8, and Radeon R7 250X uses PCIe 3.0 x16 interface.
  • GeForce 840A and Radeon R7 250X have maximum RAM of 2 GB.
  • Both cards are used in Desktops.
  • GeForce 840A is build with Maxwell architecture, and Radeon R7 250X - with GCN 1.0.
  • GeForce 840A and Radeon R7 250X are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce 840A is 377 MHz higher, than Radeon R7 250X.

Game benchmarks

high / 1080p 3−4 10−12
ultra / 1080p 2−3 6−7
QHD / 1440p 0−1 1−2
low / 720p 14−16 24−27
medium / 1080p 5−6 14−16
The average gaming FPS of Radeon R7 250X in Assassin's Creed Odyssey is 133% more, than GeForce 840A.

Full Specs

  GeForce 840A Radeon R7 250X
Architecture Maxwell GCN 1.0
Code name GM108 Cape Verde
Type Desktop Desktop
Release date 17 March 2014 13 February 2014
Pipelines 384 640
Core clock speed 1029 MHz
Boost Clock 1124 MHz 1000 MHz
Transistor count 1,500 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 17.98 38.00
Floating-point performance 863.2 gflops 1,216 gflops
Length 210 mm
Memory bus width 64 Bit 128 Bit
Memory clock speed 2002 MHz 1625 MHz
Memory bandwidth 16.02 GB/s 96 GB/s
DirectX 12 (11_0)
Shader Model 5.1 5.1
OpenGL 4.6 4.6
OpenCL 1.2 1.2
Vulkan 1.1.126
CUDA 5.0
FreeSync +
Bus support PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 152 Mh/s
Eyefinity +
Design reference
CrossFire +
DDMA audio +
  Check Price