Quadro K420 vs Radeon HD 8790M

In this comparison between Quadro K420 and Radeon HD 8790M you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Quadro K420 will be the best choice, for others Radeon HD 8790M will be their preference. Study the comparison tables below and make your choice.

Quadro K420 Check Price

Radeon HD 8790M Check Price

Radeon HD 8790M is a Laptop Graphics Card

Note: Radeon HD 8790M 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 8790M here:

Radeon HD 8790M Laptops

Main Specs

	Quadro K420	Radeon HD 8790M
Power consumption (TDP)	41 Watt
Interface	PCIe 2.0 x16	MXM-A (3.0)
Supplementary power connectors	None	None
Memory type	128 Bit	GDDR5
Maximum RAM amount	1 GB/2 GB	2 GB
Display Connectors	1x DVI, 1x DisplayPort	No outputs
	Check Price	Check Price

Quadro K420 is connected by PCIe 2.0 x16, and Radeon HD 8790M uses MXM-A (3.0) interface.
Radeon HD 8790M has 1 GB more memory, than Quadro K420.
Quadro K420 is used in Desktops, and Radeon HD 8790M - in Laptops.
Quadro K420 is build with Kepler architecture, and Radeon HD 8790M - with GCN.
Core clock speed of Quadro K420 is 26 MHz higher, than Radeon HD 8790M.
Quadro K420 and Radeon HD 8790M are manufactured by 28 nm process technology.
Memory clock speed of Radeon HD 8790M is 2718 MHz higher, than Quadro K420.

Game benchmarks


high / 1080p	0−1	3−4
ultra / 1080p	0−1	1−2
QHD / 1440p	0−1	0−1
low / 720p	9−10	14−16
medium / 1080p	1−2	6−7
The average gaming FPS of Radeon HD 8790M in Assassin's Creed Odyssey is 100% more, than Quadro K420.
high / 1080p	−	8−9
ultra / 1080p	1−2	6−7
QHD / 1440p	0−1	0−1
low / 720p	9−10	21−24
medium / 1080p	2−3	9−10
The average gaming FPS of Radeon HD 8790M in Battlefield 5 is 200% more, than Quadro K420.
low / 768p	50−55	45−50
high / 1080p	45−50	40−45
QHD / 1440p	0−1	0−1
The average gaming FPS of Quadro K420 in Call of Duty: Warzone is 11% more, than Radeon HD 8790M.
low / 768p	100−110	120−130
medium / 768p	75−80	100−110
ultra / 1080p	30−35	50−55
QHD / 1440p	−	24−27
4K / 2160p	9−10	−
high / 768p	50−55	75−80
The average gaming FPS of Radeon HD 8790M in Counter-Strike: Global Offensive is 36% more, than Quadro K420.
low / 768p	70−75	70−75
ultra / 1080p	10−12	21−24
medium / 1080p	45−50	40−45
The average gaming FPS of Radeon HD 8790M in Cyberpunk 2077 is 4% more, than Quadro K420.
low / 768p	65−70	75−80
medium / 768p	35−40	55−60
ultra / 1080p	14−16	30−35
The average gaming FPS of Radeon HD 8790M in Dota 2 is 37% more, than Quadro K420.
high / 1080p	1−2	4−5
ultra / 1080p	−	4−5
4K / 2160p	0−1	1−2
low / 720p	7−8	14−16
medium / 1080p	2−3	6−7
The average gaming FPS of Radeon HD 8790M in Far Cry 5 is 166% more, than Quadro K420.
high / 1080p	−	12−14
ultra / 1080p	−	7−8
QHD / 1440p	0−1	4−5
low / 720p	40−45	60−65
medium / 1080p	4−5	18−20
The average gaming FPS of Radeon HD 8790M in Fortnite is 73% more, than Quadro K420.
high / 1080p	1−2	8−9
ultra / 1080p	−	7−8
QHD / 1440p	0−1	0−1
low / 720p	10−12	21−24
medium / 1080p	3−4	10−11
The average gaming FPS of Radeon HD 8790M in Forza Horizon 4 is 160% more, than Quadro K420.
low / 768p	35−40	50−55
high / 1080p	1−2	10−11
ultra / 1080p	−	4−5
QHD / 1440p	0−1	0−1
medium / 720p	30−35	40−45
The average gaming FPS of Radeon HD 8790M in Grand Theft Auto V is 52% more, than Quadro K420.
high / 1080p	0−1	2−3
ultra / 1080p	0−1	0−1
4K / 2160p	0−1	0−1
low / 720p	1−2	9−10
medium / 1080p	−	4−5
The average gaming FPS of Radeon HD 8790M in Metro Exodus is 800% more, than Quadro K420.
low / 768p	85−90	85−90
high / 1080p	50−55	70−75
The average gaming FPS of Radeon HD 8790M in Minecraft is 14% more, than Quadro K420.
high / 1080p	14−16	−
ultra / 1080p	12−14	12−14
low / 720p	21−24	30−35
medium / 1080p	14−16	14−16
The average gaming FPS of Radeon HD 8790M in PLAYERUNKNOWN'S BATTLEGROUNDS is 25% more, than Quadro K420.
high / 1080p	−	7−8
ultra / 1080p	−	4−5
QHD / 1440p	0−1	0−1
low / 720p	2−3	8−9
medium / 1080p	−	8−9
The average gaming FPS of Radeon HD 8790M in Red Dead Redemption 2 is 300% more, than Quadro K420.
low / 768p	4−5	20−22
medium / 768p	−	12−14
high / 1080p	2−3	7−8
ultra / 1080p	−	5−6
4K / 2160p	0−1	1−2
The average gaming FPS of Radeon HD 8790M in The Witcher 3: Wild Hunt is 366% more, than Quadro K420.
low / 768p	65−70	75−80
medium / 768p	30−35	40−45
ultra / 1080p	10−12	18−20
high / 768p	27−30	30−35
The average gaming FPS of Radeon HD 8790M in World of Tanks is 23% more, than Quadro K420.

Full Specs

	Quadro K420	Radeon HD 8790M
Architecture	Kepler	GCN
Code name	GK107	Mars XTX
Type	Workstation	Laptop
Release date	22 July 2014	16 November 2012
Pipelines	192	384
Core clock speed	876 MHz	850 MHz
Boost Clock		900 MHz
Transistor count	1,270 million	950 million
Manufacturing process technology	28 nm	28 nm
Texture fill rate	14.02	21.60
Floating-point performance	336.4 gflops	691.2 gflops
Length	160 mm
Memory bus width	128 Bit	128 Bit
Memory clock speed	1782 MHz	4500 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	3.0
Bitcoin / BTC (SHA256)	11 Mh/s	80 Mh/s
Laptop size		medium sized
3D Vision Pro	+
Mosaic	+
Width	1" (2.5 cm)
Number of simultaneous displays	4
nView Desktop Management	+
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Quadro K420 vs Radeon HD 8790M

Radeon HD 8790M is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

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