Mobility Radeon HD 3870 X2 vs Radeon R9 M390

Find out if it is worth upgrading your current GPU setup by comparing Mobility Radeon HD 3870 X2 and Radeon R9 M390. 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 Mobility Radeon HD 3870 X2 and Radeon R9 M390. 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.

Mobility Radeon HD 3870 X2 Check Price

Radeon R9 M390 Check Price

Mobility Radeon HD 3870 X2 and Radeon R9 M390 are Laptop Graphics Cards

Note: Mobility Radeon HD 3870 X2 and Radeon R9 M390 are only used in laptop graphics. They have 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 Mobility Radeon HD 3870 X2 or Radeon R9 M390 here:

Mobility Radeon HD 3870 X2 Laptops

Radeon R9 M390 Laptops

Main Specs

	Mobility Radeon HD 3870 X2	Radeon R9 M390
Power consumption (TDP)	110 Watt
Interface	PCIe 2.0 x16
Memory type	GDDR3	GDDR5
Maximum RAM amount	512 MB	2 GB
Display Connectors	No outputs
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Mobility Radeon HD 3870 X2 has 510 GB more memory, than Radeon R9 M390.
Both cards are used in Laptops.
Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Radeon R9 M390 - with GCN.
Mobility Radeon HD 3870 X2 is manufactured by 55 nm process technology, and Radeon R9 M390 - by 28 nm process technology.

Game benchmarks


high / 1080p	6−7	18−20
ultra / 1080p	4−5	10−11
QHD / 1440p	0−1	5−6
4K / 2160p	−	4−5
low / 720p	16−18	35−40
medium / 1080p	8−9	21−24
The average gaming FPS of Radeon R9 M390 in Assassin's Creed Odyssey is 144% more, than Mobility Radeon HD 3870 X2.
high / 1080p	12−14	27−30
ultra / 1080p	10−11	24−27
QHD / 1440p	0−1	10−12
4K / 2160p	−	7−8
low / 720p	24−27	60−65
medium / 1080p	12−14	30−35
The average gaming FPS of Radeon R9 M390 in Battlefield 5 is 146% more, than Mobility Radeon HD 3870 X2.
low / 768p	45−50	45−50
high / 1080p	45−50	−
QHD / 1440p	0−1	0−1
Mobility Radeon HD 3870 X2 and Radeon R9 M390 have the same average FPS in Call of Duty: Warzone.
low / 768p	130−140	220−230
medium / 768p	110−120	190−200
ultra / 1080p	50−55	110−120
QHD / 1440p	27−30	65−70
4K / 2160p	27−30	35−40
high / 768p	80−85	150−160
The average gaming FPS of Radeon R9 M390 in Counter-Strike: Global Offensive is 80% more, than Mobility Radeon HD 3870 X2.
low / 768p	55−60	55−60
ultra / 1080p	18−20	45−50
medium / 1080p	45−50	45−50
The average gaming FPS of Radeon R9 M390 in Cyberpunk 2077 is 21% more, than Mobility Radeon HD 3870 X2.
low / 768p	80−85	110−120
medium / 768p	55−60	100−110
ultra / 1080p	30−35	70−75
The average gaming FPS of Radeon R9 M390 in Dota 2 is 70% more, than Mobility Radeon HD 3870 X2.
high / 1080p	8−9	21−24
ultra / 1080p	7−8	18−20
QHD / 1440p	−	16−18
4K / 2160p	3−4	7−8
low / 720p	18−20	45−50
medium / 1080p	8−9	21−24
The average gaming FPS of Radeon R9 M390 in Far Cry 5 is 155% more, than Mobility Radeon HD 3870 X2.
high / 1080p	14−16	27−30
ultra / 1080p	10−11	21−24
QHD / 1440p	−	16−18
low / 720p	60−65	110−120
medium / 1080p	21−24	60−65
The average gaming FPS of Radeon R9 M390 in Fortnite is 111% more, than Mobility Radeon HD 3870 X2.
high / 1080p	12−14	30−33
ultra / 1080p	10−12	21−24
QHD / 1440p	1−2	12−14
4K / 2160p	−	10−12
low / 720p	24−27	60−65
medium / 1080p	14−16	30−35
The average gaming FPS of Radeon R9 M390 in Forza Horizon 4 is 146% more, than Mobility Radeon HD 3870 X2.
low / 768p	50−55	95−100
medium / 768p	45−50	85−90
high / 1080p	12−14	35−40
ultra / 1080p	6−7	14−16
QHD / 1440p	0−1	5−6
The average gaming FPS of Radeon R9 M390 in Grand Theft Auto V is 103% more, than Mobility Radeon HD 3870 X2.
high / 1080p	4−5	10−12
ultra / 1080p	3−4	9−10
4K / 2160p	0−1	3−4
low / 720p	12−14	35−40
medium / 1080p	6−7	14−16
The average gaming FPS of Radeon R9 M390 in Metro Exodus is 200% more, than Mobility Radeon HD 3870 X2.
low / 768p	95−100	110−120
high / 1080p	85−90	−
ultra / 1080p	80−85	−
medium / 1080p	90−95	110−120
The average gaming FPS of Radeon R9 M390 in Minecraft is 21% more, than Mobility Radeon HD 3870 X2.
high / 1080p	16−18	24−27
ultra / 1080p	14−16	18−20
low / 720p	30−35	65−70
medium / 1080p	18−20	27−30
The average gaming FPS of Radeon R9 M390 in PLAYERUNKNOWN'S BATTLEGROUNDS is 75% more, than Mobility Radeon HD 3870 X2.
high / 1080p	−	14−16
ultra / 1080p	7−8	10−11
QHD / 1440p	0−1	0−1
low / 720p	12−14	30−35
medium / 1080p	10−12	18−20
The average gaming FPS of Radeon R9 M390 in Red Dead Redemption 2 is 100% more, than Mobility Radeon HD 3870 X2.
low / 768p	24−27	65−70
medium / 768p	16−18	40−45
high / 1080p	9−10	21−24
ultra / 1080p	6−7	12−14
4K / 2160p	6−7	9−10
The average gaming FPS of Radeon R9 M390 in The Witcher 3: Wild Hunt is 138% more, than Mobility Radeon HD 3870 X2.
low / 768p	85−90	100−110
medium / 768p	45−50	65−70
ultra / 1080p	18−20	35−40
high / 768p	35−40	55−60
The average gaming FPS of Radeon R9 M390 in World of Tanks is 40% more, than Mobility Radeon HD 3870 X2.

Full Specs

	Mobility Radeon HD 3870 X2	Radeon R9 M390
Architecture	RV6xx	GCN
Code name	M88-XT CF	Pitcairn
Type	Laptop	Laptop
Release date	1 September 2008	9 June 2015
Pipelines	640	1024
Core clock speed	660 MHz
Transistor count	666 million	5000 Million
Manufacturing process technology	55 nm	28 nm
Texture fill rate	10.56
Floating-point performance	2x 422.4 gflops
Memory bus width	256 Bit	256 Bit
Memory clock speed	850 MHz
Memory bandwidth	54.4 GB/s
Shared memory	-	-
DirectX	10.1 (10_1)
Shader Model	4.1
OpenGL	3.3	4.4
OpenCL	N/A	Not Listed
Vulkan	N/A
FreeSync		+
Bus support		PCIe 3.0
Bitcoin / BTC (SHA256)		242 Mh/s
Laptop size	large	large
Eyefinity		+
HD3D		+
PowerTune		+
DualGraphics		+
ZeroCore		+
Switchable graphics		+
Mantle		+
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Mobility Radeon HD 3870 X2 vs Radeon R9 M390

Mobility Radeon HD 3870 X2 and Radeon R9 M390 are Laptop Graphics Cards

Main Specs

Game benchmarks

Full Specs

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