Radeon HD 6990 vs Radeon R9 M390X

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 6990 and Radeon R9 M390X. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Radeon HD 6990 and Radeon R9 M390X. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Radeon HD 6990 Check Price

Radeon R9 M390X Check Price

Radeon R9 M390X is a Laptop Graphics Card

Note: Radeon R9 M390X 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 R9 M390X here:

Radeon R9 M390X Laptops

Main Specs

	Radeon HD 6990	Radeon R9 M390X
Power consumption (TDP)	375 Watt	100 Watt
Interface	PCIe 2.0 x16	PCIe 3.0 x16
Supplementary power connectors	2x 8-pin	None
Memory type	GDDR5	GDDR5
Maximum RAM amount	2 GB	4 GB
Display Connectors	1x DVI, 4x mini-DisplayPort	No outputs
	Check Price	Check Price

Radeon HD 6990 has 275% more power consumption, than Radeon R9 M390X.
Radeon HD 6990 is connected by PCIe 2.0 x16, and Radeon R9 M390X uses PCIe 3.0 x16 interface.
Radeon R9 M390X has 2 GB more memory, than Radeon HD 6990.
Radeon HD 6990 is used in Desktops, and Radeon R9 M390X - in Laptops.
Radeon HD 6990 is build with TeraScale 3 architecture, and Radeon R9 M390X - with GCN 3.
Core clock speed of Radeon HD 6990 is 107 MHz higher, than Radeon R9 M390X.
Radeon HD 6990 is manufactured by 40 nm process technology, and Radeon R9 M390X - by 28 nm process technology.

Game benchmarks


high / 1080p	14−16	21−24
ultra / 1080p	9−10	12−14
QHD / 1440p	3−4	8−9
4K / 2160p	−	5−6
low / 720p	30−35	40−45
medium / 1080p	18−20	27−30
The average gaming FPS of Radeon R9 M390X in Assassin's Creed Odyssey is 53% more, than Radeon HD 6990.
high / 1080p	24−27	35−40
ultra / 1080p	21−24	30−35
QHD / 1440p	7−8	14−16
4K / 2160p	5−6	9−10
low / 720p	50−55	70−75
medium / 1080p	27−30	40−45
The average gaming FPS of Radeon R9 M390X in Battlefield 5 is 47% more, than Radeon HD 6990.
low / 768p	45−50	50−55
QHD / 1440p	0−1	0−1
The average gaming FPS of Radeon R9 M390X in Call of Duty: Warzone is 10% more, than Radeon HD 6990.
low / 768p	210−220	230−240
medium / 768p	170−180	210−220
ultra / 1080p	95−100	120−130
QHD / 1440p	50−55	100−110
4K / 2160p	30−33	55−60
high / 768p	140−150	170−180
The average gaming FPS of Radeon R9 M390X in Counter-Strike: Global Offensive is 27% more, than Radeon HD 6990.
low / 768p	55−60	60−65
ultra / 1080p	40−45	55−60
medium / 1080p	45−50	55−60
The average gaming FPS of Radeon R9 M390X in Cyberpunk 2077 is 20% more, than Radeon HD 6990.
low / 768p	110−120	120−130
medium / 768p	90−95	110−120
ultra / 1080p	60−65	85−90
The average gaming FPS of Radeon R9 M390X in Dota 2 is 21% more, than Radeon HD 6990.
high / 1080p	18−20	27−30
ultra / 1080p	16−18	24−27
QHD / 1440p	−	20−22
4K / 2160p	6−7	9−10
low / 720p	35−40	55−60
medium / 1080p	18−20	30−33
The average gaming FPS of Radeon R9 M390X in Far Cry 5 is 57% more, than Radeon HD 6990.
high / 1080p	24−27	35−40
ultra / 1080p	18−20	27−30
QHD / 1440p	16−18	16−18
low / 720p	95−100	130−140
medium / 1080p	50−55	75−80
The average gaming FPS of Radeon R9 M390X in Fortnite is 40% more, than Radeon HD 6990.
high / 1080p	24−27	35−40
ultra / 1080p	20−22	27−30
QHD / 1440p	9−10	16−18
4K / 2160p	−	14−16
low / 720p	50−55	75−80
medium / 1080p	27−30	40−45
The average gaming FPS of Radeon R9 M390X in Forza Horizon 4 is 48% more, than Radeon HD 6990.
low / 768p	85−90	110−120
medium / 768p	75−80	95−100
high / 1080p	30−33	45−50
ultra / 1080p	12−14	18−20
QHD / 1440p	3−4	9−10
The average gaming FPS of Radeon R9 M390X in Grand Theft Auto V is 35% more, than Radeon HD 6990.
high / 1080p	9−10	14−16
ultra / 1080p	7−8	10−12
QHD / 1440p	−	10−12
4K / 2160p	2−3	3−4
low / 720p	27−30	40−45
medium / 1080p	12−14	20−22
The average gaming FPS of Radeon R9 M390X in Metro Exodus is 50% more, than Radeon HD 6990.
low / 768p	110−120	120−130
ultra / 1080p	100−110	−
medium / 1080p	100−110	110−120
The average gaming FPS of Radeon R9 M390X in Minecraft is 9% more, than Radeon HD 6990.
high / 1080p	21−24	−
ultra / 1080p	18−20	14−16
low / 720p	55−60	75−80
medium / 1080p	24−27	18−20
The average gaming FPS of Radeon R9 M390X in PLAYERUNKNOWN'S BATTLEGROUNDS is 8% more, than Radeon HD 6990.
high / 1080p	14−16	16−18
ultra / 1080p	9−10	10−12
QHD / 1440p	0−1	3−4
4K / 2160p	−	2−3
low / 720p	27−30	40−45
medium / 1080p	16−18	21−24
The average gaming FPS of Radeon R9 M390X in Red Dead Redemption 2 is 35% more, than Radeon HD 6990.
low / 768p	55−60	80−85
medium / 768p	30−35	50−55
high / 1080p	18−20	27−30
ultra / 1080p	10−12	16−18
4K / 2160p	8−9	9−10
The average gaming FPS of Radeon R9 M390X in The Witcher 3: Wild Hunt is 52% more, than Radeon HD 6990.
low / 768p	100−110	90−95
medium / 768p	60−65	60−65
ultra / 1080p	35−40	40−45
high / 768p	50−55	55−60
The average gaming FPS of Radeon HD 6990 in World of Tanks is 1% more, than Radeon R9 M390X.

Full Specs

	Radeon HD 6990	Radeon R9 M390X
Architecture	TeraScale 3	GCN 3
Code name	Antilles	Amethyst (XT) / Tonga
Type	Desktop	Laptop
Release date	8 March 2011	9 June 2015
Pipelines	1536	2048
Core clock speed	830 MHz	723 MHz
Transistor count	2,640 million	5,000 million
Manufacturing process technology	40 nm	28 nm
Texture fill rate	79.68	92.54
Floating-point performance	2x 2,549.8 gflops	2,961 gflops
Length	295 mm
Memory bus width	256 Bit	256 Bit
Memory clock speed	5000 MHz
Memory bandwidth	160.0 GB/s	160.0 GB/s
Shared memory		-
DirectX	11.2 (11_0)
Shader Model	5.0	6.3
OpenGL	4.4	4.4
OpenCL	1.2	Not Listed
Vulkan	N/A	+
FreeSync		+
Bus support		PCIe 3.0
Bitcoin / BTC (SHA256)	265 Mh/s
Laptop size		large
Eyefinity		+
HD3D		+
PowerTune		+
DualGraphics		+
ZeroCore		+
Switchable graphics		+
Mantle		+
Ethereum / ETH (DaggerHashimoto)	24 Mh/s
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Radeon HD 6990 vs Radeon R9 M390X

Radeon R9 M390X is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

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