Quadro K420 vs Radeon R9 M385

Find out if it is worth upgrading your current GPU setup by comparing Quadro K420 and Radeon R9 M385. 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 Quadro K420 and Radeon R9 M385. 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.

Radeon R9 M385 is a Laptop Graphics Card

Note: Radeon R9 M385 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 M385 here:

Main Specs

  Quadro K420 Radeon R9 M385
Power consumption (TDP) 41 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors None
Memory type 128 Bit GDDR5
Maximum RAM amount 1 GB/2 GB 4 GB
Display Connectors 1x DVI, 1x DisplayPort No outputs
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  • Quadro K420 is connected by PCIe 2.0 x16, and Radeon R9 M385 uses PCIe 3.0 x16 interface.
  • Radeon R9 M385 has 3 GB more memory, than Quadro K420.
  • Quadro K420 is used in Desktops, and Radeon R9 M385 - in Laptops.
  • Quadro K420 is build with Kepler architecture, and Radeon R9 M385 - with GCN.
  • Quadro K420 and Radeon R9 M385 are manufactured by 28 nm process technology.
  • Memory clock speed of Quadro K420 is 282 MHz higher, than Radeon R9 M385.

Game benchmarks

high / 1080p 0−1 10−12
ultra / 1080p 0−1 6−7
QHD / 1440p 0−1 1−2
low / 720p 9−10 24−27
medium / 1080p 1−2 12−14
The average gaming FPS of Radeon R9 M385 in Assassin's Creed Odyssey is 280% more, than Quadro K420.

Full Specs

  Quadro K420 Radeon R9 M385
Architecture Kepler GCN
Code name GK107 Strato
Type Workstation Laptop
Release date 22 July 2014 16 June 2015
Pipelines 192 896
Core clock speed 876 MHz
Boost Clock 1100 MHz
Transistor count 1,270 million 2,080 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 14.02 56.00
Floating-point performance 336.4 gflops 1,792 gflops
Length 160 mm
Memory bus width 128 Bit 128 Bit
Memory clock speed 1782 MHz 1500 MHz
Memory bandwidth 76.8 GB/s
Shared memory -
DirectX 12
Shader Model 5 6.3
OpenGL 4.5 4.4
OpenCL 1.2 Not Listed
Vulkan +
CUDA 3.0
FreeSync +
Bus support PCIe 3.0
Bitcoin / BTC (SHA256) 11 Mh/s
Laptop size medium sized
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
TrueAudio +
ZeroCore +
Switchable graphics +
Mantle +
3D Vision Pro +
Mosaic +
Width 1" (2.5 cm)
Number of simultaneous displays 4
nView Desktop Management +
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