Radeon HD 7990 vs Radeon R9 M390

If you are going to buy a new graphics card and are choosing between Radeon HD 7990 and Radeon R9 M390, 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 Radeon HD 7990 stacks up against Radeon R9 M390, check out specs charts below.

Radeon HD 7990 Check Price

Radeon R9 M390 Check Price

Radeon R9 M390 is a Laptop Graphics Card

Note: Radeon R9 M390 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 M390 here:

Radeon R9 M390 Laptops

Main Specs

	Radeon HD 7990	Radeon R9 M390
Power consumption (TDP)	375 Watt
Interface	PCIe 3.0 x16
Supplementary power connectors	2x 8-pin
Memory type	GDDR5	GDDR5
Maximum RAM amount	3 GB	2 GB
Display Connectors	1x DVI, 4x mini-DisplayPort
	Check Price	Check Price

Radeon HD 7990 has 1 GB more memory, than Radeon R9 M390.
Radeon HD 7990 is used in Desktops, and Radeon R9 M390 - in Laptops.
Radeon HD 7990 is build with GCN 1.0 architecture, and Radeon R9 M390 - with GCN.
Radeon HD 7990 and Radeon R9 M390 are manufactured by 28 nm process technology.

Game benchmarks


high / 1080p	35−40	18−20
ultra / 1080p	21−24	10−11
QHD / 1440p	16−18	5−6
4K / 2160p	10−11	4−5
low / 720p	60−65	35−40
medium / 1080p	40−45	21−24
The average gaming FPS of Radeon HD 7990 in Assassin's Creed Odyssey is 100% more, than Radeon R9 M390.
high / 1080p	55−60	27−30
ultra / 1080p	45−50	24−27
QHD / 1440p	35−40	10−12
4K / 2160p	18−20	7−8
low / 720p	100−110	60−65
medium / 1080p	60−65	30−35
The average gaming FPS of Radeon HD 7990 in Battlefield 5 is 100% more, than Radeon R9 M390.
low / 768p	50−55	45−50
QHD / 1440p	0−1	0−1
The average gaming FPS of Radeon HD 7990 in Call of Duty: Warzone is 10% more, than Radeon R9 M390.
low / 768p	250−260	220−230
medium / 768p	220−230	190−200
ultra / 1080p	180−190	110−120
QHD / 1440p	110−120	65−70
4K / 2160p	70−75	35−40
high / 768p	210−220	150−160
The average gaming FPS of Radeon HD 7990 in Counter-Strike: Global Offensive is 34% more, than Radeon R9 M390.
low / 768p	60−65	55−60
ultra / 1080p	−	45−50
medium / 1080p	55−60	45−50
The average gaming FPS of Radeon HD 7990 in Cyberpunk 2077 is 15% more, than Radeon R9 M390.
low / 768p	120−130	110−120
medium / 768p	110−120	100−110
ultra / 1080p	100−110	70−75
The average gaming FPS of Radeon HD 7990 in Dota 2 is 18% more, than Radeon R9 M390.
high / 1080p	45−50	21−24
ultra / 1080p	40−45	18−20
QHD / 1440p	27−30	16−18
4K / 2160p	14−16	7−8
low / 720p	80−85	45−50
medium / 1080p	45−50	21−24
The average gaming FPS of Radeon HD 7990 in Far Cry 5 is 95% more, than Radeon R9 M390.
high / 1080p	60−65	27−30
ultra / 1080p	45−50	21−24
QHD / 1440p	27−30	16−18
4K / 2160p	27−30	−
low / 720p	180−190	110−120
medium / 1080p	110−120	60−65
The average gaming FPS of Radeon HD 7990 in Fortnite is 77% more, than Radeon R9 M390.
high / 1080p	60−65	30−33
ultra / 1080p	45−50	21−24
QHD / 1440p	30−35	12−14
4K / 2160p	24−27	10−12
low / 720p	100−110	60−65
medium / 1080p	65−70	30−35
The average gaming FPS of Radeon HD 7990 in Forza Horizon 4 is 100% more, than Radeon R9 M390.
low / 768p	140−150	95−100
medium / 768p	120−130	85−90
high / 1080p	70−75	35−40
ultra / 1080p	30−35	14−16
QHD / 1440p	21−24	5−6
The average gaming FPS of Radeon HD 7990 in Grand Theft Auto V is 64% more, than Radeon R9 M390.
high / 1080p	24−27	10−12
ultra / 1080p	20−22	9−10
QHD / 1440p	16−18	−
4K / 2160p	8−9	3−4
low / 720p	65−70	35−40
medium / 1080p	30−35	14−16
The average gaming FPS of Radeon HD 7990 in Metro Exodus is 106% more, than Radeon R9 M390.
low / 768p	130−140	110−120
medium / 1080p	120−130	110−120
The average gaming FPS of Radeon HD 7990 in Minecraft is 13% more, than Radeon R9 M390.
high / 1080p	−	24−27
ultra / 1080p	14−16	18−20
low / 720p	100−110	65−70
medium / 1080p	18−20	27−30
The average gaming FPS of Radeon HD 7990 in PLAYERUNKNOWN'S BATTLEGROUNDS is 21% more, than Radeon R9 M390.
high / 1080p	24−27	14−16
ultra / 1080p	16−18	10−11
QHD / 1440p	10−11	0−1
4K / 2160p	7−8	−
low / 720p	65−70	30−35
medium / 1080p	35−40	18−20
The average gaming FPS of Radeon HD 7990 in Red Dead Redemption 2 is 89% more, than Radeon R9 M390.
low / 768p	130−140	65−70
medium / 768p	85−90	40−45
high / 1080p	45−50	21−24
ultra / 1080p	24−27	12−14
4K / 2160p	16−18	9−10
The average gaming FPS of Radeon HD 7990 in The Witcher 3: Wild Hunt is 100% more, than Radeon R9 M390.
low / 768p	90−95	100−110
medium / 768p	60−65	65−70
ultra / 1080p	50−55	35−40
high / 768p	60−65	55−60
The average gaming FPS of Radeon HD 7990 in World of Tanks is 1% more, than Radeon R9 M390.

Full Specs

	Radeon HD 7990	Radeon R9 M390
Architecture	GCN 1.0	GCN
Code name	Malta	Pitcairn
Type	Desktop	Laptop
Release date	24 April 2013	9 June 2015
Pipelines	2048	1024
Core clock speed	950 MHz
Boost Clock	1000 MHz
Transistor count	4,313 million	5000 Million
Manufacturing process technology	28 nm	28 nm
Texture fill rate	128.0
Floating-point performance	2x 4,096 gflops
Length	307 mm
Memory bus width	384 Bit	256 Bit
Memory clock speed	6000 MHz
Memory bandwidth	288.0 GB/s
Shared memory		-
DirectX	12 (11_1)
Shader Model	5.1
OpenGL	4.6	4.4
OpenCL	1.2	Not Listed
Vulkan	1.2.131
FreeSync		+
Bus support		PCIe 3.0
Bitcoin / BTC (SHA256)	459 Mh/s	242 Mh/s
Laptop size		large
Eyefinity		+
HD3D		+
PowerTune		+
DualGraphics		+
ZeroCore		+
Switchable graphics		+
Mantle		+
Ethereum / ETH (DaggerHashimoto)	44 Mh/s
	Check Price	Check Price

Radeon HD 7990 vs Radeon R9 M390

Radeon R9 M390 is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

Similar compares