Quadro K420 vs Radeon HD 7990

When choosing between Quadro K420 and Radeon HD 7990, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Quadro K420 and Radeon HD 7990.

Quadro K420 Check Price

Radeon HD 7990 Check Price

Main Specs

	Quadro K420	Radeon HD 7990
Power consumption (TDP)	41 Watt	375 Watt
Interface	PCIe 2.0 x16	PCIe 3.0 x16
Supplementary power connectors	None	2x 8-pin
Memory type	128 Bit	GDDR5
Maximum RAM amount	1 GB/2 GB	3 GB
Display Connectors	1x DVI, 1x DisplayPort	1x DVI, 4x mini-DisplayPort
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Radeon HD 7990 has 814% more power consumption, than Quadro K420.
Quadro K420 is connected by PCIe 2.0 x16, and Radeon HD 7990 uses PCIe 3.0 x16 interface.
Radeon HD 7990 has 2 GB more memory, than Quadro K420.
Both cards are used in Desktops.
Quadro K420 is build with Kepler architecture, and Radeon HD 7990 - with GCN 1.0.
Core clock speed of Radeon HD 7990 is 74 MHz higher, than Quadro K420.
Quadro K420 and Radeon HD 7990 are manufactured by 28 nm process technology.
Radeon HD 7990 is 147 mm longer, than Quadro K420.
Memory clock speed of Radeon HD 7990 is 4218 MHz higher, than Quadro K420.

Game benchmarks


high / 1080p	0−1	35−40
ultra / 1080p	0−1	21−24
QHD / 1440p	0−1	16−18
4K / 2160p	−	10−11
low / 720p	9−10	60−65
medium / 1080p	1−2	40−45
The average gaming FPS of Radeon HD 7990 in Assassin's Creed Odyssey is 940% more, than Quadro K420.
high / 1080p	−	55−60
ultra / 1080p	1−2	45−50
QHD / 1440p	0−1	35−40
4K / 2160p	−	18−20
low / 720p	9−10	100−110
medium / 1080p	2−3	60−65
The average gaming FPS of Radeon HD 7990 in Battlefield 5 is 1675% more, than Quadro K420.
low / 768p	50−55	50−55
high / 1080p	45−50	−
QHD / 1440p	0−1	0−1
Quadro K420 and Radeon HD 7990 have the same average FPS in Call of Duty: Warzone.
low / 768p	100−110	250−260
medium / 768p	75−80	220−230
ultra / 1080p	30−35	180−190
QHD / 1440p	−	110−120
4K / 2160p	9−10	70−75
high / 768p	50−55	210−220
The average gaming FPS of Radeon HD 7990 in Counter-Strike: Global Offensive is 245% more, than Quadro K420.
low / 768p	70−75	60−65
ultra / 1080p	10−12	−
medium / 1080p	45−50	55−60
Quadro K420 and Radeon HD 7990 have the same average FPS in Cyberpunk 2077.
low / 768p	65−70	120−130
medium / 768p	35−40	110−120
ultra / 1080p	14−16	100−110
The average gaming FPS of Radeon HD 7990 in Dota 2 is 187% more, than Quadro K420.
high / 1080p	1−2	45−50
ultra / 1080p	−	40−45
QHD / 1440p	−	27−30
4K / 2160p	0−1	14−16
low / 720p	7−8	80−85
medium / 1080p	2−3	45−50
The average gaming FPS of Radeon HD 7990 in Far Cry 5 is 1866% more, than Quadro K420.
high / 1080p	−	60−65
ultra / 1080p	−	45−50
QHD / 1440p	0−1	27−30
4K / 2160p	−	27−30
low / 720p	40−45	180−190
medium / 1080p	4−5	110−120
The average gaming FPS of Radeon HD 7990 in Fortnite is 552% more, than Quadro K420.
high / 1080p	1−2	60−65
ultra / 1080p	−	45−50
QHD / 1440p	0−1	30−35
4K / 2160p	−	24−27
low / 720p	10−12	100−110
medium / 1080p	3−4	65−70
The average gaming FPS of Radeon HD 7990 in Forza Horizon 4 is 1460% more, than Quadro K420.
low / 768p	35−40	140−150
medium / 768p	−	120−130
high / 1080p	1−2	70−75
ultra / 1080p	−	30−35
QHD / 1440p	0−1	21−24
medium / 720p	30−35	−
The average gaming FPS of Radeon HD 7990 in Grand Theft Auto V is 468% more, than Quadro K420.
high / 1080p	0−1	24−27
ultra / 1080p	0−1	20−22
QHD / 1440p	−	16−18
4K / 2160p	0−1	8−9
low / 720p	1−2	65−70
medium / 1080p	−	30−35
The average gaming FPS of Radeon HD 7990 in Metro Exodus is 6600% more, than Quadro K420.
low / 768p	85−90	130−140
high / 1080p	50−55	−
medium / 1080p	−	120−130
The average gaming FPS of Radeon HD 7990 in Minecraft is 55% more, than Quadro K420.
high / 1080p	14−16	−
ultra / 1080p	12−14	14−16
low / 720p	21−24	100−110
medium / 1080p	14−16	18−20
The average gaming FPS of Radeon HD 7990 in PLAYERUNKNOWN'S BATTLEGROUNDS is 187% more, than Quadro K420.
high / 1080p	−	24−27
ultra / 1080p	−	16−18
QHD / 1440p	0−1	10−11
4K / 2160p	−	7−8
low / 720p	2−3	65−70
medium / 1080p	−	35−40
The average gaming FPS of Radeon HD 7990 in Red Dead Redemption 2 is 3250% more, than Quadro K420.
low / 768p	4−5	130−140
medium / 768p	−	85−90
high / 1080p	2−3	45−50
ultra / 1080p	−	24−27
4K / 2160p	0−1	16−18
The average gaming FPS of Radeon HD 7990 in The Witcher 3: Wild Hunt is 2933% more, than Quadro K420.
low / 768p	65−70	90−95
medium / 768p	30−35	60−65
ultra / 1080p	10−12	50−55
high / 768p	27−30	60−65
The average gaming FPS of Radeon HD 7990 in World of Tanks is 97% more, than Quadro K420.

Full Specs

	Quadro K420	Radeon HD 7990
Architecture	Kepler	GCN 1.0
Code name	GK107	Malta
Type	Workstation	Desktop
Release date	22 July 2014	24 April 2013
Pipelines	192	2048
Core clock speed	876 MHz	950 MHz
Boost Clock		1000 MHz
Transistor count	1,270 million	4,313 million
Manufacturing process technology	28 nm	28 nm
Texture fill rate	14.02	128.0
Floating-point performance	336.4 gflops	2x 4,096 gflops
Length	160 mm	307 mm
Memory bus width	128 Bit	384 Bit
Memory clock speed	1782 MHz	6000 MHz
Memory bandwidth		288.0 GB/s
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	459 Mh/s
Ethereum / ETH (DaggerHashimoto)		44 Mh/s
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 7990

Main Specs

Game benchmarks

Full Specs

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