Radeon HD 6990 vs Radeon R9 390X

When choosing between Radeon HD 6990 and Radeon R9 390X, 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 Radeon HD 6990 and Radeon R9 390X.

Radeon HD 6990 Check Price

Radeon R9 390X Check Price

Main Specs

	Radeon HD 6990	Radeon R9 390X
Power consumption (TDP)	375 Watt	275 Watt
Interface	PCIe 2.0 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	2 GB
Display Connectors	1x DVI, 4x mini-DisplayPort	2x DVI, 1x HDMI, 1x DisplayPort
	Check Price	Check Price

Radeon HD 6990 has 36% more power consumption, than Radeon R9 390X.
Radeon HD 6990 is connected by PCIe 2.0 x16, and Radeon R9 390X uses PCIe 3.0 x16 interface.
Both cards are used in Desktops.
Radeon HD 6990 is build with TeraScale 3 architecture, and Radeon R9 390X - with GCN.
Radeon HD 6990 is manufactured by 40 nm process technology, and Radeon R9 390X - by 28 nm process technology.
Radeon HD 6990 is 20 mm longer, than Radeon R9 390X.
Memory clock speed of Radeon HD 6990 is 3950 MHz higher, than Radeon R9 390X.

Game benchmarks


high / 1080p	14−16	50−55
ultra / 1080p	9−10	30−35
QHD / 1440p	3−4	24−27
4K / 2160p	−	14−16
low / 720p	30−35	75−80
medium / 1080p	18−20	55−60
The average gaming FPS of Radeon R9 390X in Assassin's Creed Odyssey is 226% more, than Radeon HD 6990.
high / 1080p	24−27	75−80
ultra / 1080p	21−24	65−70
QHD / 1440p	7−8	50−55
4K / 2160p	5−6	27−30
low / 720p	50−55	130−140
medium / 1080p	27−30	85−90
The average gaming FPS of Radeon R9 390X in Battlefield 5 is 221% more, than Radeon HD 6990.
low / 768p	45−50	45−50
QHD / 1440p	0−1	45−50
Radeon HD 6990 and Radeon R9 390X have the same average FPS in Call of Duty: Warzone.
low / 768p	210−220	250−260
medium / 768p	170−180	230−240
ultra / 1080p	95−100	−
QHD / 1440p	50−55	150−160
4K / 2160p	30−33	100−110
high / 768p	140−150	220−230
The average gaming FPS of Radeon R9 390X in Counter-Strike: Global Offensive is 58% more, than Radeon HD 6990.
low / 768p	55−60	70−75
ultra / 1080p	40−45	−
medium / 1080p	45−50	50−55
The average gaming FPS of Radeon R9 390X in Cyberpunk 2077 is 19% more, than Radeon HD 6990.
low / 768p	110−120	120−130
medium / 768p	90−95	110−120
ultra / 1080p	60−65	110−120
The average gaming FPS of Radeon R9 390X in Dota 2 is 31% more, than Radeon HD 6990.
high / 1080p	18−20	60−65
ultra / 1080p	16−18	60−65
QHD / 1440p	−	40−45
4K / 2160p	6−7	21−24
low / 720p	35−40	100−110
medium / 1080p	18−20	65−70
The average gaming FPS of Radeon R9 390X in Far Cry 5 is 236% more, than Radeon HD 6990.
high / 1080p	24−27	90−95
ultra / 1080p	18−20	70−75
QHD / 1440p	16−18	45−50
4K / 2160p	−	21−24
low / 720p	95−100	210−220
medium / 1080p	50−55	140−150
The average gaming FPS of Radeon R9 390X in Fortnite is 171% more, than Radeon HD 6990.
high / 1080p	24−27	80−85
ultra / 1080p	20−22	65−70
QHD / 1440p	9−10	45−50
4K / 2160p	−	30−35
low / 720p	50−55	130−140
medium / 1080p	27−30	90−95
The average gaming FPS of Radeon R9 390X in Forza Horizon 4 is 214% more, than Radeon HD 6990.
low / 768p	85−90	160−170
medium / 768p	75−80	150−160
high / 1080p	30−33	95−100
ultra / 1080p	12−14	45−50
QHD / 1440p	3−4	35−40
The average gaming FPS of Radeon R9 390X in Grand Theft Auto V is 138% more, than Radeon HD 6990.
high / 1080p	9−10	35−40
ultra / 1080p	7−8	30−35
QHD / 1440p	−	24−27
4K / 2160p	2−3	14−16
low / 720p	27−30	90−95
medium / 1080p	12−14	50−55
The average gaming FPS of Radeon R9 390X in Metro Exodus is 283% more, than Radeon HD 6990.
low / 768p	110−120	120−130
ultra / 1080p	100−110	−
medium / 1080p	100−110	−
The average gaming FPS of Radeon R9 390X in Minecraft is 8% more, than Radeon HD 6990.
high / 1080p	21−24	75−80
ultra / 1080p	18−20	50−55
4K / 2160p	−	18−20
low / 720p	55−60	120−130
medium / 1080p	24−27	85−90
The average gaming FPS of Radeon R9 390X in PLAYERUNKNOWN'S BATTLEGROUNDS is 174% more, than Radeon HD 6990.
high / 1080p	14−16	35−40
ultra / 1080p	9−10	21−24
QHD / 1440p	0−1	16−18
4K / 2160p	−	10−11
low / 720p	27−30	90−95
medium / 1080p	16−18	50−55
The average gaming FPS of Radeon R9 390X in Red Dead Redemption 2 is 200% more, than Radeon HD 6990.
low / 768p	55−60	180−190
medium / 768p	30−35	120−130
high / 1080p	18−20	70−75
ultra / 1080p	10−12	35−40
4K / 2160p	8−9	24−27
The average gaming FPS of Radeon R9 390X in The Witcher 3: Wild Hunt is 256% more, than Radeon HD 6990.
low / 768p	100−110	120−130
medium / 768p	60−65	−
ultra / 1080p	35−40	65−70
high / 768p	50−55	120−130
The average gaming FPS of Radeon R9 390X in World of Tanks is 61% more, than Radeon HD 6990.

Full Specs

	Radeon HD 6990	Radeon R9 390X
Architecture	TeraScale 3	GCN
Code name	Antilles	Grenada XT
Type	Desktop	Desktop
Release date	8 March 2011	16 June 2015
Pipelines	1536	2816
Core clock speed	830 MHz
Boost Clock		1050 MHz
Transistor count	2,640 million	6,200 million
Manufacturing process technology	40 nm	28 nm
Texture fill rate	79.68	184.8
Floating-point performance	2x 2,549.8 gflops	5,914 gflops
Length	295 mm	275 mm
Memory bus width	256 Bit	512 Bit
Memory clock speed	5000 MHz	1050 MHz
Memory bandwidth	160.0 GB/s	384 GB/s
Shared memory		-
DirectX	11.2 (11_0)
Shader Model	5.0	6.3
OpenGL	4.4	4.6
OpenCL	1.2	2.0
Vulkan	N/A	+
FreeSync		+
Bus support		PCIe 3.0
HDMI		+
Bitcoin / BTC (SHA256)	265 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)	24 Mh/s	27.5 Mh/s
High bandwidth memory (HBM)		-
	Check Price	Check Price

Radeon HD 6990 vs Radeon R9 390X

Main Specs

Game benchmarks

Full Specs

Similar compares