Mobility Radeon HD 3870 X2 vs Radeon HD 7870 XT

In this comparison between Mobility Radeon HD 3870 X2 and Radeon HD 7870 XT you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Mobility Radeon HD 3870 X2 will be the best choice, for others Radeon HD 7870 XT will be their preference. Study the comparison tables below and make your choice.

Mobility Radeon HD 3870 X2 Check Price

Radeon HD 7870 XT

Mobility Radeon HD 3870 X2 is a Laptop Graphics Card

Note: Mobility Radeon HD 3870 X2 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 Mobility Radeon HD 3870 X2 here:

Mobility Radeon HD 3870 X2 Laptops

Main Specs

	Mobility Radeon HD 3870 X2	Radeon HD 7870 XT
Power consumption (TDP)	110 Watt	185 Watt
Interface	PCIe 2.0 x16	PCIe 3.0 x16
Supplementary power connectors		2x 6-pin
Memory type	GDDR3	GDDR5
Maximum RAM amount	512 MB	2 GB
Display Connectors	No outputs	1x DVI, 1x HDMI, 2x mini-DisplayPort
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Radeon HD 7870 XT has 68% more power consumption, than Mobility Radeon HD 3870 X2.
Mobility Radeon HD 3870 X2 is connected by PCIe 2.0 x16, and Radeon HD 7870 XT uses PCIe 3.0 x16 interface.
Mobility Radeon HD 3870 X2 has 510 GB more memory, than Radeon HD 7870 XT.
Mobility Radeon HD 3870 X2 is used in Laptops, and Radeon HD 7870 XT - in Desktops.
Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Radeon HD 7870 XT - with GCN 1.0.
Core clock speed of Radeon HD 7870 XT is 265 MHz higher, than Mobility Radeon HD 3870 X2.
Mobility Radeon HD 3870 X2 is manufactured by 55 nm process technology, and Radeon HD 7870 XT - by 28 nm process technology.
Memory clock speed of Radeon HD 7870 XT is 5150 MHz higher, than Mobility Radeon HD 3870 X2.

Game benchmarks


high / 1080p	6−7	35−40
ultra / 1080p	4−5	21−24
QHD / 1440p	0−1	16−18
4K / 2160p	−	10−11
low / 720p	16−18	60−65
medium / 1080p	8−9	40−45
The average gaming FPS of Radeon HD 7870 XT in Assassin's Creed Odyssey is 355% more, than Mobility Radeon HD 3870 X2.
high / 1080p	12−14	55−60
ultra / 1080p	10−11	45−50
QHD / 1440p	0−1	35−40
4K / 2160p	−	18−20
low / 720p	24−27	100−110
medium / 1080p	12−14	60−65
The average gaming FPS of Radeon HD 7870 XT in Battlefield 5 is 353% more, than Mobility Radeon HD 3870 X2.
low / 768p	45−50	50−55
high / 1080p	45−50	−
QHD / 1440p	0−1	0−1
The average gaming FPS of Radeon HD 7870 XT in Call of Duty: Warzone is 10% more, than Mobility Radeon HD 3870 X2.
low / 768p	130−140	250−260
medium / 768p	110−120	220−230
ultra / 1080p	50−55	180−190
QHD / 1440p	27−30	110−120
4K / 2160p	27−30	70−75
high / 768p	80−85	210−220
The average gaming FPS of Radeon HD 7870 XT in Counter-Strike: Global Offensive is 142% more, than Mobility Radeon HD 3870 X2.
low / 768p	55−60	60−65
ultra / 1080p	18−20	−
medium / 1080p	45−50	55−60
The average gaming FPS of Radeon HD 7870 XT in Cyberpunk 2077 is 15% more, than Mobility Radeon HD 3870 X2.
low / 768p	80−85	120−130
medium / 768p	55−60	110−120
ultra / 1080p	30−35	100−110
The average gaming FPS of Radeon HD 7870 XT in Dota 2 is 101% more, than Mobility Radeon HD 3870 X2.
high / 1080p	8−9	45−50
ultra / 1080p	7−8	40−45
QHD / 1440p	−	27−30
4K / 2160p	3−4	14−16
low / 720p	18−20	80−85
medium / 1080p	8−9	45−50
The average gaming FPS of Radeon HD 7870 XT in Far Cry 5 is 422% more, than Mobility Radeon HD 3870 X2.
high / 1080p	14−16	60−65
ultra / 1080p	10−11	45−50
QHD / 1440p	−	27−30
4K / 2160p	−	27−30
low / 720p	60−65	180−190
medium / 1080p	21−24	110−120
The average gaming FPS of Radeon HD 7870 XT in Fortnite is 277% more, than Mobility Radeon HD 3870 X2.
high / 1080p	12−14	60−65
ultra / 1080p	10−12	45−50
QHD / 1440p	1−2	30−35
4K / 2160p	−	24−27
low / 720p	24−27	100−110
medium / 1080p	14−16	65−70
The average gaming FPS of Radeon HD 7870 XT in Forza Horizon 4 is 384% more, than Mobility Radeon HD 3870 X2.
low / 768p	50−55	140−150
medium / 768p	45−50	120−130
high / 1080p	12−14	70−75
ultra / 1080p	6−7	30−35
QHD / 1440p	0−1	21−24
The average gaming FPS of Radeon HD 7870 XT in Grand Theft Auto V is 220% more, than Mobility Radeon HD 3870 X2.
high / 1080p	4−5	24−27
ultra / 1080p	3−4	20−22
QHD / 1440p	−	16−18
4K / 2160p	0−1	8−9
low / 720p	12−14	65−70
medium / 1080p	6−7	30−35
The average gaming FPS of Radeon HD 7870 XT in Metro Exodus is 500% more, than Mobility Radeon HD 3870 X2.
low / 768p	95−100	130−140
high / 1080p	85−90	−
ultra / 1080p	80−85	−
medium / 1080p	90−95	120−130
The average gaming FPS of Radeon HD 7870 XT in Minecraft is 36% more, than Mobility Radeon HD 3870 X2.
high / 1080p	16−18	−
ultra / 1080p	14−16	14−16
low / 720p	30−35	100−110
medium / 1080p	18−20	18−20
The average gaming FPS of Radeon HD 7870 XT in PLAYERUNKNOWN'S BATTLEGROUNDS is 109% more, than Mobility Radeon HD 3870 X2.
high / 1080p	−	24−27
ultra / 1080p	7−8	16−18
QHD / 1440p	0−1	10−11
4K / 2160p	−	7−8
low / 720p	12−14	65−70
medium / 1080p	10−12	35−40
The average gaming FPS of Radeon HD 7870 XT in Red Dead Redemption 2 is 300% more, than Mobility Radeon HD 3870 X2.
low / 768p	24−27	130−140
medium / 768p	16−18	85−90
high / 1080p	9−10	45−50
ultra / 1080p	6−7	24−27
4K / 2160p	6−7	16−18
The average gaming FPS of Radeon HD 7870 XT in The Witcher 3: Wild Hunt is 376% more, than Mobility Radeon HD 3870 X2.
low / 768p	85−90	90−95
medium / 768p	45−50	60−65
ultra / 1080p	18−20	50−55
high / 768p	35−40	60−65
The average gaming FPS of Radeon HD 7870 XT in World of Tanks is 42% more, than Mobility Radeon HD 3870 X2.

Full Specs

	Mobility Radeon HD 3870 X2	Radeon HD 7870 XT
Architecture	RV6xx	GCN 1.0
Code name	M88-XT CF	Tahiti
Type	Laptop	Desktop
Release date	1 September 2008	19 November 2012
Pipelines	640	1536
Core clock speed	660 MHz	925 MHz
Boost Clock		975 MHz
Transistor count	666 million	4,313 million
Manufacturing process technology	55 nm	28 nm
Texture fill rate	10.56	93.60
Floating-point performance	2x 422.4 gflops	2,995 gflops
Length		267 mm
Memory bus width	256 Bit	256 Bit
Memory clock speed	850 MHz	6000 MHz
Memory bandwidth	54.4 GB/s	192.0 GB/s
Shared memory	-
DirectX	10.1 (10_1)	12 (11_1)
Shader Model	4.1	5.1
OpenGL	3.3	4.6
OpenCL	N/A	1.2
Vulkan	N/A	1.2.131
Bitcoin / BTC (SHA256)		346 Mh/s
Laptop size	large
Ethereum / ETH (DaggerHashimoto)		14.5 Mh/s
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Mobility Radeon HD 3870 X2 vs Radeon HD 7870 XT

Mobility Radeon HD 3870 X2 is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

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