GeForce GT 740A vs Radeon R9 M390X

If you are going to buy a new graphics card and are choosing between GeForce GT 740A and Radeon R9 M390X, 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 GT 740A stacks up against Radeon R9 M390X, check out specs charts below.

Radeon R9 M390X is a Laptop Graphics Card

Note: Radeon R9 M390X 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 Radeon R9 M390X here:

Main Specs

  GeForce GT 740A Radeon R9 M390X
Power consumption (TDP) 33 Watt 100 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Supplementary power connectors None
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs No outputs
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  • Radeon R9 M390X has 203% more power consumption, than GeForce GT 740A.
  • GeForce GT 740A is connected by PCIe 3.0 x8, and Radeon R9 M390X uses PCIe 3.0 x16 interface.
  • Radeon R9 M390X has 2 GB more memory, than GeForce GT 740A.
  • GeForce GT 740A is used in Desktops, and Radeon R9 M390X - in Laptops.
  • GeForce GT 740A is build with Kepler 2.0 architecture, and Radeon R9 M390X - with GCN 3.
  • Core clock speed of GeForce GT 740A is 257 MHz higher, than Radeon R9 M390X.
  • GeForce GT 740A and Radeon R9 M390X are manufactured by 28 nm process technology.

Game benchmarks

high / 1080p 0−1 21−24
ultra / 1080p 12−14
QHD / 1440p 0−1 8−9
4K / 2160p 5−6
low / 720p 1−2 40−45
medium / 1080p 0−1 27−30
The average gaming FPS of Radeon R9 M390X in Assassin's Creed Odyssey is 4100% more, than GeForce GT 740A.

Full Specs

  GeForce GT 740A Radeon R9 M390X
Architecture Kepler 2.0 GCN 3
Code name GK208 Amethyst (XT) / Tonga
Type Desktop Laptop
Release date 26 August 2013 9 June 2015
Pipelines 384 2048
Core clock speed 980 MHz 723 MHz
Transistor count 915 million 5,000 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 31.36 92.54
Floating-point performance 752.6 gflops 2,961 gflops
Memory bus width 64 Bit 256 Bit
Memory clock speed 1800 MHz
Memory bandwidth 14.4 GB/s 160.0 GB/s
Shared memory -
DirectX 12 (11_0)
Shader Model 5.1 6.3
OpenGL 4.6 4.4
OpenCL 1.2 Not Listed
Vulkan 1.1.126 +
CUDA 3.5
FreeSync +
Bus support PCIe 3.0
Laptop size large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
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