GeForce 820A vs Mobility Radeon HD 3870 X2

When comparing GeForce 820A and Mobility Radeon HD 3870 X2, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce 820A and Mobility Radeon HD 3870 X2 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce 820A

Mobility Radeon HD 3870 X2 Check Price

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

	GeForce 820A	Mobility Radeon HD 3870 X2
Power consumption (TDP)	15 Watt	110 Watt
Interface	PCIe 2.0 x16	PCIe 2.0 x16
Memory type	DDR3	GDDR3
Maximum RAM amount	1 GB	512 MB
Display Connectors	No outputs	No outputs
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Mobility Radeon HD 3870 X2 has 633% more power consumption, than GeForce 820A.
Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
Mobility Radeon HD 3870 X2 has 511 GB more memory, than GeForce 820A.
GeForce 820A is used in Desktops, and Mobility Radeon HD 3870 X2 - in Laptops.
GeForce 820A is build with Fermi 2.0 architecture, and Mobility Radeon HD 3870 X2 - with RV6xx.
Core clock speed of GeForce 820A is 115 MHz higher, than Mobility Radeon HD 3870 X2.
GeForce 820A is manufactured by 28 nm process technology, and Mobility Radeon HD 3870 X2 - by 55 nm process technology.
Memory clock speed of GeForce 820A is 950 MHz higher, than Mobility Radeon HD 3870 X2.

Game benchmarks


high / 1080p	0−1	6−7
ultra / 1080p	−	4−5
QHD / 1440p	0−1	0−1
low / 720p	1−2	16−18
medium / 1080p	0−1	8−9
The average gaming FPS of Mobility Radeon HD 3870 X2 in Assassin's Creed Odyssey is 1600% more, than GeForce 820A.
high / 1080p	−	12−14
ultra / 1080p	−	10−11
QHD / 1440p	0−1	0−1
low / 720p	0−1	24−27
medium / 1080p	−	12−14
low / 768p	50−55	45−50
high / 1080p	45−50	45−50
QHD / 1440p	0−1	0−1
The average gaming FPS of GeForce 820A in Call of Duty: Warzone is 6% more, than Mobility Radeon HD 3870 X2.
low / 768p	60−65	130−140
medium / 768p	27−30	110−120
ultra / 1080p	7−8	50−55
QHD / 1440p	−	27−30
4K / 2160p	−	27−30
high / 768p	16−18	80−85
The average gaming FPS of Mobility Radeon HD 3870 X2 in Counter-Strike: Global Offensive is 242% more, than GeForce 820A.
low / 768p	70−75	55−60
ultra / 1080p	0−1	18−20
medium / 1080p	45−50	45−50
The average gaming FPS of GeForce 820A in Cyberpunk 2077 is 15% more, than Mobility Radeon HD 3870 X2.
low / 768p	45−50	80−85
medium / 768p	10−11	55−60
ultra / 1080p	0−1	30−35
The average gaming FPS of Mobility Radeon HD 3870 X2 in Dota 2 is 141% more, than GeForce 820A.
high / 1080p	−	8−9
ultra / 1080p	−	7−8
4K / 2160p	−	3−4
low / 720p	0−1	18−20
medium / 1080p	−	8−9
high / 1080p	−	14−16
ultra / 1080p	−	10−11
low / 720p	21−24	60−65
medium / 1080p	0−1	21−24
The average gaming FPS of Mobility Radeon HD 3870 X2 in Fortnite is 181% more, than GeForce 820A.
high / 1080p	0−1	12−14
ultra / 1080p	−	10−12
QHD / 1440p	0−1	1−2
low / 720p	0−1	24−27
medium / 1080p	0−1	14−16
low / 768p	18−20	50−55
medium / 768p	−	45−50
high / 1080p	0−1	12−14
ultra / 1080p	−	6−7
QHD / 1440p	0−1	0−1
medium / 720p	12−14	−
The average gaming FPS of Mobility Radeon HD 3870 X2 in Grand Theft Auto V is 173% more, than GeForce 820A.
high / 1080p	−	4−5
ultra / 1080p	−	3−4
4K / 2160p	−	0−1
low / 720p	0−1	12−14
medium / 1080p	−	6−7
low / 768p	75−80	95−100
high / 1080p	27−30	85−90
ultra / 1080p	−	80−85
medium / 1080p	−	90−95
The average gaming FPS of Mobility Radeon HD 3870 X2 in Minecraft is 73% more, than GeForce 820A.
high / 1080p	−	16−18
ultra / 1080p	−	14−16
low / 720p	8−9	30−35
medium / 1080p	−	18−20
The average gaming FPS of Mobility Radeon HD 3870 X2 in PLAYERUNKNOWN'S BATTLEGROUNDS is 300% more, than GeForce 820A.
ultra / 1080p	−	7−8
QHD / 1440p	−	0−1
low / 720p	0−1	12−14
medium / 1080p	−	10−12
low / 768p	0−1	24−27
medium / 768p	−	16−18
high / 1080p	−	9−10
ultra / 1080p	−	6−7
4K / 2160p	−	6−7
low / 768p	45−50	85−90
medium / 768p	14−16	45−50
ultra / 1080p	0−1	18−20
high / 768p	12−14	35−40
The average gaming FPS of Mobility Radeon HD 3870 X2 in World of Tanks is 128% more, than GeForce 820A.

Full Specs

	GeForce 820A	Mobility Radeon HD 3870 X2
Architecture	Fermi 2.0	RV6xx
Code name	GF117	M88-XT CF
Type	Desktop	Laptop
Release date	17 March 2014	1 September 2008
Pipelines	96	640
Core clock speed	775 MHz	660 MHz
Transistor count	585 million	666 million
Manufacturing process technology	28 nm	55 nm
Texture fill rate	12.40	10.56
Floating-point performance	297.6 gflops	2x 422.4 gflops
Memory bus width	64 Bit	256 Bit
Memory clock speed	1800 MHz	850 MHz
Memory bandwidth	14.4 GB/s	54.4 GB/s
Shared memory		-
DirectX	12 (11_0)	10.1 (10_1)
Shader Model	5.1	4.1
OpenGL	4.6	3.3
OpenCL	1.1	N/A
Vulkan	N/A	N/A
CUDA	2.1
Laptop size		large
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GeForce 820A vs Mobility Radeon HD 3870 X2

Mobility Radeon HD 3870 X2 is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

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