Radeon HD 7990 vs Radeon R9 390X

When comparing Radeon HD 7990 and Radeon R9 390X, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon HD 7990 and Radeon R9 390X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Radeon HD 7990 Check Price

Radeon R9 390X Check Price

Main Specs

	Radeon HD 7990	Radeon R9 390X
Power consumption (TDP)	375 Watt	275 Watt
Interface	PCIe 3.0 x16	PCIe 3.0 x16
Supplementary power connectors	2x 8-pin	1 x 6-pin, 1 x 8-pin
Memory type	GDDR5	GDDR5
Maximum RAM amount	3 GB
Display Connectors	1x DVI, 4x mini-DisplayPort	2x DVI, 1x HDMI, 1x DisplayPort
	Check Price	Check Price

Radeon HD 7990 has 36% more power consumption, than Radeon R9 390X.
Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
Both cards are used in Desktops.
Radeon HD 7990 is build with GCN 1.0 architecture, and Radeon R9 390X - with GCN.
Radeon HD 7990 and Radeon R9 390X are manufactured by 28 nm process technology.
Radeon HD 7990 is 32 mm longer, than Radeon R9 390X.
Memory clock speed of Radeon HD 7990 is 4950 MHz higher, than Radeon R9 390X.

Game benchmarks


high / 1080p	35−40	50−55
ultra / 1080p	21−24	30−35
QHD / 1440p	16−18	24−27
4K / 2160p	10−11	14−16
low / 720p	60−65	75−80
medium / 1080p	40−45	55−60
The average gaming FPS of Radeon R9 390X in Assassin's Creed Odyssey is 34% more, than Radeon HD 7990.
high / 1080p	55−60	75−80
ultra / 1080p	45−50	65−70
QHD / 1440p	35−40	50−55
4K / 2160p	18−20	27−30
low / 720p	100−110	130−140
medium / 1080p	60−65	85−90
The average gaming FPS of Radeon R9 390X in Battlefield 5 is 37% more, than Radeon HD 7990.
low / 768p	50−55	45−50
QHD / 1440p	0−1	45−50
The average gaming FPS of Radeon HD 7990 in Call of Duty: Warzone is 10% more, than Radeon R9 390X.
low / 768p	250−260	250−260
medium / 768p	220−230	230−240
ultra / 1080p	180−190	−
QHD / 1440p	110−120	150−160
4K / 2160p	70−75	100−110
high / 768p	210−220	220−230
The average gaming FPS of Radeon R9 390X in Counter-Strike: Global Offensive is 10% more, than Radeon HD 7990.
low / 768p	60−65	70−75
medium / 1080p	55−60	50−55
The average gaming FPS of Radeon R9 390X in Cyberpunk 2077 is 3% more, than Radeon HD 7990.
low / 768p	120−130	120−130
medium / 768p	110−120	110−120
ultra / 1080p	100−110	110−120
The average gaming FPS of Radeon R9 390X in Dota 2 is 2% more, than Radeon HD 7990.
high / 1080p	45−50	60−65
ultra / 1080p	40−45	60−65
QHD / 1440p	27−30	40−45
4K / 2160p	14−16	21−24
low / 720p	80−85	100−110
medium / 1080p	45−50	65−70
The average gaming FPS of Radeon R9 390X in Far Cry 5 is 39% more, than Radeon HD 7990.
high / 1080p	60−65	90−95
ultra / 1080p	45−50	70−75
QHD / 1440p	27−30	45−50
4K / 2160p	27−30	21−24
low / 720p	180−190	210−220
medium / 1080p	110−120	140−150
The average gaming FPS of Radeon R9 390X in Fortnite is 28% more, than Radeon HD 7990.
high / 1080p	60−65	80−85
ultra / 1080p	45−50	65−70
QHD / 1440p	30−35	45−50
4K / 2160p	24−27	30−35
low / 720p	100−110	130−140
medium / 1080p	65−70	90−95
The average gaming FPS of Radeon R9 390X in Forza Horizon 4 is 35% more, than Radeon HD 7990.
low / 768p	140−150	160−170
medium / 768p	120−130	150−160
high / 1080p	70−75	95−100
ultra / 1080p	30−35	45−50
QHD / 1440p	21−24	35−40
The average gaming FPS of Radeon R9 390X in Grand Theft Auto V is 26% more, than Radeon HD 7990.
high / 1080p	24−27	35−40
ultra / 1080p	20−22	30−35
QHD / 1440p	16−18	24−27
4K / 2160p	8−9	14−16
low / 720p	65−70	90−95
medium / 1080p	30−35	50−55
The average gaming FPS of Radeon R9 390X in Metro Exodus is 50% more, than Radeon HD 7990.
low / 768p	130−140	120−130
medium / 1080p	120−130	−
The average gaming FPS of Radeon HD 7990 in Minecraft is 8% more, than Radeon R9 390X.
high / 1080p	−	75−80
ultra / 1080p	14−16	50−55
4K / 2160p	−	18−20
low / 720p	100−110	120−130
medium / 1080p	18−20	85−90
The average gaming FPS of Radeon R9 390X in PLAYERUNKNOWN'S BATTLEGROUNDS is 91% more, than Radeon HD 7990.
high / 1080p	24−27	35−40
ultra / 1080p	16−18	21−24
QHD / 1440p	10−11	16−18
4K / 2160p	7−8	10−11
low / 720p	65−70	90−95
medium / 1080p	35−40	50−55
The average gaming FPS of Radeon R9 390X in Red Dead Redemption 2 is 40% more, than Radeon HD 7990.
low / 768p	130−140	180−190
medium / 768p	85−90	120−130
high / 1080p	45−50	70−75
ultra / 1080p	24−27	35−40
4K / 2160p	16−18	24−27
The average gaming FPS of Radeon R9 390X in The Witcher 3: Wild Hunt is 43% more, than Radeon HD 7990.
low / 768p	90−95	120−130
medium / 768p	60−65	−
ultra / 1080p	50−55	65−70
high / 768p	60−65	120−130
The average gaming FPS of Radeon R9 390X in World of Tanks is 52% more, than Radeon HD 7990.

Full Specs

	Radeon HD 7990	Radeon R9 390X
Architecture	GCN 1.0	GCN
Code name	Malta	Grenada XT
Type	Desktop	Desktop
Release date	24 April 2013	16 June 2015
Pipelines	2048	2816
Core clock speed	950 MHz
Boost Clock	1000 MHz	1050 MHz
Transistor count	4,313 million	6,200 million
Manufacturing process technology	28 nm	28 nm
Texture fill rate	128.0	184.8
Floating-point performance	2x 4,096 gflops	5,914 gflops
Length	307 mm	275 mm
Memory bus width	384 Bit	512 Bit
Memory clock speed	6000 MHz	1050 MHz
Memory bandwidth	288.0 GB/s	384 GB/s
Shared memory		-
DirectX	12 (11_1)
Shader Model	5.1	6.3
OpenGL	4.6	4.6
OpenCL	1.2	2.0
Vulkan	1.2.131	+
FreeSync		+
Bus support		PCIe 3.0
HDMI		+
Bitcoin / BTC (SHA256)	459 Mh/s	684 Mh/s
Eyefinity		+
PowerTune		+
TrueAudio		+
Mantle		+
Design		reference
Bridgeless CrossFire		+
Number of Eyefinity displays		6
DisplayPort support		+
CrossFire		+
VCE		+
DDMA audio		+
Ethereum / ETH (DaggerHashimoto)	44 Mh/s	27.5 Mh/s
High bandwidth memory (HBM)		-
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Radeon HD 7990 vs Radeon R9 390X

Main Specs

Game benchmarks

Full Specs

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