Quadro K620 vs Radeon HD 7870M

Find out if it is worth upgrading your current GPU setup by comparing Quadro K620 and Radeon HD 7870M. 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 K620 and Radeon HD 7870M. 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 HD 7870M is a Laptop Graphics Card

Note: Radeon HD 7870M 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 HD 7870M here:

Main Specs

  Quadro K620 Radeon HD 7870M
Power consumption (TDP) 41 Watt 45 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors None
Memory type 128 Bit GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors 1x DVI, 1x DisplayPort No outputs
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  • Radeon HD 7870M has 9% more power consumption, than Quadro K620.
  • Quadro K620 is connected by PCIe 2.0 x16, and Radeon HD 7870M uses PCIe 3.0 x16 interface.
  • Quadro K620 and Radeon HD 7870M have maximum RAM of 2 GB.
  • Quadro K620 is used in Desktops, and Radeon HD 7870M - in Laptops.
  • Quadro K620 is build with Maxwell architecture, and Radeon HD 7870M - with GCN.
  • Core clock speed of Quadro K620 is 258 MHz higher, than Radeon HD 7870M.
  • Quadro K620 and Radeon HD 7870M are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon HD 7870M is 2200 MHz higher, than Quadro K620.

Game benchmarks

high / 1080p 10−12 6−7
ultra / 1080p 6−7 4−5
QHD / 1440p 1−2 0−1
low / 720p 24−27 16−18
medium / 1080p 14−16 8−9
The average gaming FPS of Quadro K620 in Assassin's Creed Odyssey is 55% more, than Radeon HD 7870M.

Full Specs

  Quadro K620 Radeon HD 7870M
Architecture Maxwell GCN
Code name GM107 Heathrow XT
Type Workstation Laptop
Release date 22 July 2014 24 April 2012
Pipelines 384 640
Core clock speed 1058 MHz 800 MHz
Boost Clock 1124 MHz
Transistor count 1,870 million 1,500 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 26.98 32.00
Floating-point performance 863.2 gflops 1,024 gflops
Length 160 mm
Memory bus width 128 Bit 128 Bit
Memory clock speed 1800 MHz 4000 MHz
Memory bandwidth 64 GB/s
Shared memory -
DirectX 12 12 (11_1)
Shader Model 5 5.1
OpenGL 4.5 4.6
OpenCL 1.2 1.2
Vulkan + 1.2.131
CUDA 5.0
Bitcoin / BTC (SHA256) 104 Mh/s
Laptop size large
3D Vision Pro +
Mosaic +
Width 1" (2.5 cm)
Number of simultaneous displays 4
nView Desktop Management +
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