Quadro K620 vs Radeon HD 7990

If you are going to buy a new graphics card and are choosing between Quadro K620 and Radeon HD 7990, 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 Quadro K620 stacks up against Radeon HD 7990, check out specs charts below.

Quadro K620 Check Price

Radeon HD 7990 Check Price

Main Specs

	Quadro K620	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	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 K620.
Quadro K620 is connected by PCIe 2.0 x16, and Radeon HD 7990 uses PCIe 3.0 x16 interface.
Radeon HD 7990 has 1 GB more memory, than Quadro K620.
Both cards are used in Desktops.
Quadro K620 is build with Maxwell architecture, and Radeon HD 7990 - with GCN 1.0.
Core clock speed of Quadro K620 is 108 MHz higher, than Radeon HD 7990.
Quadro K620 and Radeon HD 7990 are manufactured by 28 nm process technology.
Radeon HD 7990 is 147 mm longer, than Quadro K620.
Memory clock speed of Radeon HD 7990 is 4200 MHz higher, than Quadro K620.

Game benchmarks


high / 1080p	10−12	35−40
ultra / 1080p	6−7	21−24
QHD / 1440p	1−2	16−18
4K / 2160p	−	10−11
low / 720p	24−27	60−65
medium / 1080p	14−16	40−45
The average gaming FPS of Radeon HD 7990 in Assassin's Creed Odyssey is 227% more, than Quadro K620.
high / 1080p	18−20	55−60
ultra / 1080p	16−18	45−50
QHD / 1440p	2−3	35−40
4K / 2160p	−	18−20
low / 720p	40−45	100−110
medium / 1080p	20−22	60−65
The average gaming FPS of Radeon HD 7990 in Battlefield 5 is 210% more, than Quadro K620.
low / 768p	45−50	50−55
QHD / 1440p	0−1	0−1
The average gaming FPS of Radeon HD 7990 in Call of Duty: Warzone is 10% more, than Quadro K620.
low / 768p	180−190	250−260
medium / 768p	150−160	220−230
ultra / 1080p	75−80	180−190
QHD / 1440p	45−50	110−120
4K / 2160p	30−33	70−75
high / 768p	110−120	210−220
The average gaming FPS of Radeon HD 7990 in Counter-Strike: Global Offensive is 75% more, than Quadro K620.
low / 768p	55−60	60−65
ultra / 1080p	30−35	−
medium / 1080p	45−50	55−60
The average gaming FPS of Radeon HD 7990 in Cyberpunk 2077 is 15% more, than Quadro K620.
low / 768p	95−100	120−130
medium / 768p	80−85	110−120
ultra / 1080p	50−55	100−110
The average gaming FPS of Radeon HD 7990 in Dota 2 is 49% more, than Quadro K620.
high / 1080p	12−14	45−50
ultra / 1080p	12−14	40−45
QHD / 1440p	−	27−30
4K / 2160p	5−6	14−16
low / 720p	30−33	80−85
medium / 1080p	14−16	45−50
The average gaming FPS of Radeon HD 7990 in Far Cry 5 is 213% more, than Quadro K620.
high / 1080p	20−22	60−65
ultra / 1080p	14−16	45−50
QHD / 1440p	−	27−30
4K / 2160p	−	27−30
low / 720p	80−85	180−190
medium / 1080p	40−45	110−120
The average gaming FPS of Radeon HD 7990 in Fortnite is 155% more, than Quadro K620.
high / 1080p	20−22	60−65
ultra / 1080p	16−18	45−50
QHD / 1440p	5−6	30−35
4K / 2160p	−	24−27
low / 720p	40−45	100−110
medium / 1080p	21−24	65−70
The average gaming FPS of Radeon HD 7990 in Forza Horizon 4 is 200% more, than Quadro K620.
low / 768p	70−75	140−150
medium / 768p	60−65	120−130
high / 1080p	21−24	70−75
ultra / 1080p	9−10	30−35
QHD / 1440p	0−1	21−24
The average gaming FPS of Radeon HD 7990 in Grand Theft Auto V is 126% more, than Quadro K620.
high / 1080p	7−8	24−27
ultra / 1080p	5−6	20−22
QHD / 1440p	−	16−18
4K / 2160p	1−2	8−9
low / 720p	21−24	65−70
medium / 1080p	10−11	30−35
The average gaming FPS of Radeon HD 7990 in Metro Exodus is 244% more, than Quadro K620.
low / 768p	100−110	130−140
ultra / 1080p	95−100	−
medium / 1080p	100−110	120−130
The average gaming FPS of Radeon HD 7990 in Minecraft is 23% more, than Quadro K620.
high / 1080p	20−22	−
ultra / 1080p	16−18	14−16
low / 720p	45−50	100−110
medium / 1080p	21−24	18−20
The average gaming FPS of Radeon HD 7990 in PLAYERUNKNOWN'S BATTLEGROUNDS is 58% more, than Quadro K620.
high / 1080p	12−14	24−27
ultra / 1080p	8−9	16−18
QHD / 1440p	0−1	10−11
4K / 2160p	−	7−8
low / 720p	21−24	65−70
medium / 1080p	14−16	35−40
The average gaming FPS of Radeon HD 7990 in Red Dead Redemption 2 is 157% more, than Quadro K620.
low / 768p	40−45	130−140
medium / 768p	24−27	85−90
high / 1080p	14−16	45−50
ultra / 1080p	9−10	24−27
4K / 2160p	7−8	16−18
The average gaming FPS of Radeon HD 7990 in The Witcher 3: Wild Hunt is 210% more, than Quadro K620.
low / 768p	95−100	90−95
medium / 768p	55−60	60−65
ultra / 1080p	27−30	50−55
high / 768p	45−50	60−65
The average gaming FPS of Radeon HD 7990 in World of Tanks is 17% more, than Quadro K620.

Full Specs

	Quadro K620	Radeon HD 7990
Architecture	Maxwell	GCN 1.0
Code name	GM107	Malta
Type	Workstation	Desktop
Release date	22 July 2014	24 April 2013
Pipelines	384	2048
Core clock speed	1058 MHz	950 MHz
Boost Clock	1124 MHz	1000 MHz
Transistor count	1,870 million	4,313 million
Manufacturing process technology	28 nm	28 nm
Texture fill rate	26.98	128.0
Floating-point performance	863.2 gflops	2x 4,096 gflops
Length	160 mm	307 mm
Memory bus width	128 Bit	384 Bit
Memory clock speed	1800 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	5.0
Bitcoin / BTC (SHA256)	104 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 K620 vs Radeon HD 7990

Main Specs

Game benchmarks

Full Specs

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