GeForce 840A vs Radeon HD 6990M Crossfire

When choosing between GeForce 840A and Radeon HD 6990M Crossfire, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce 840A and Radeon HD 6990M Crossfire.

GeForce 840A

Radeon HD 6990M Crossfire Check Price

Radeon HD 6990M Crossfire is a Laptop Graphics Card

Note: Radeon HD 6990M Crossfire 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 HD 6990M Crossfire here:

Radeon HD 6990M Crossfire Laptops

Main Specs

	GeForce 840A	Radeon HD 6990M Crossfire
Power consumption (TDP)	33 Watt
Interface	PCIe 3.0 x8
Memory type	DDR3	GDDR5
Maximum RAM amount	2 GB	2x2 GB
Display Connectors	No outputs
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GeForce 840A and Radeon HD 6990M Crossfire have maximum RAM of 2 GB.
GeForce 840A is used in Desktops, and Radeon HD 6990M Crossfire - in Laptops.
GeForce 840A is build with Maxwell architecture, and Radeon HD 6990M Crossfire - with Terascale 2.
Core clock speed of GeForce 840A is 314 MHz higher, than Radeon HD 6990M Crossfire.
GeForce 840A is manufactured by 28 nm process technology, and Radeon HD 6990M Crossfire - by 40 nm process technology.
Memory clock speed of GeForce 840A is 1102 MHz higher, than Radeon HD 6990M Crossfire.

Game benchmarks


high / 1080p	3−4	35−40
ultra / 1080p	2−3	21−24
QHD / 1440p	0−1	16−18
4K / 2160p	−	10−11
low / 720p	14−16	60−65
medium / 1080p	5−6	40−45
The average gaming FPS of Radeon HD 6990M Crossfire in Assassin's Creed Odyssey is 583% more, than GeForce 840A.
high / 1080p	−	55−60
ultra / 1080p	7−8	45−50
QHD / 1440p	0−1	35−40
4K / 2160p	−	18−20
low / 720p	18−20	100−110
medium / 1080p	8−9	60−65
The average gaming FPS of Radeon HD 6990M Crossfire in Battlefield 5 is 545% more, than GeForce 840A.
low / 768p	45−50	50−55
high / 1080p	30−35	−
QHD / 1440p	0−1	0−1
The average gaming FPS of Radeon HD 6990M Crossfire in Call of Duty: Warzone is 10% more, than GeForce 840A.
low / 768p	120−130	250−260
medium / 768p	90−95	220−230
ultra / 1080p	40−45	180−190
QHD / 1440p	24−27	110−120
4K / 2160p	18−20	70−75
high / 768p	65−70	210−220
The average gaming FPS of Radeon HD 6990M Crossfire in Counter-Strike: Global Offensive is 185% more, than GeForce 840A.
low / 768p	80−85	60−65
ultra / 1080p	14−16	−
medium / 1080p	40−45	55−60
The average gaming FPS of GeForce 840A in Cyberpunk 2077 is 3% more, than Radeon HD 6990M Crossfire.
low / 768p	75−80	120−130
medium / 768p	50−55	110−120
ultra / 1080p	27−30	100−110
The average gaming FPS of Radeon HD 6990M Crossfire in Dota 2 is 121% more, than GeForce 840A.
high / 1080p	5−6	45−50
ultra / 1080p	−	40−45
QHD / 1440p	−	27−30
4K / 2160p	2−3	14−16
low / 720p	14−16	80−85
medium / 1080p	6−7	45−50
The average gaming FPS of Radeon HD 6990M Crossfire in Far Cry 5 is 585% more, than GeForce 840A.
high / 1080p	12−14	60−65
ultra / 1080p	7−8	45−50
QHD / 1440p	−	27−30
4K / 2160p	−	27−30
low / 720p	50−55	180−190
medium / 1080p	14−16	110−120
The average gaming FPS of Radeon HD 6990M Crossfire in Fortnite is 363% more, than GeForce 840A.
high / 1080p	7−8	60−65
ultra / 1080p	−	45−50
QHD / 1440p	0−1	30−35
4K / 2160p	−	24−27
low / 720p	20−22	100−110
medium / 1080p	9−10	65−70
The average gaming FPS of Radeon HD 6990M Crossfire in Forza Horizon 4 is 550% more, than GeForce 840A.
low / 768p	45−50	140−150
medium / 768p	−	120−130
high / 1080p	8−9	70−75
ultra / 1080p	5−6	30−35
QHD / 1440p	0−1	21−24
medium / 720p	40−45	−
The average gaming FPS of Radeon HD 6990M Crossfire in Grand Theft Auto V is 315% more, than GeForce 840A.
high / 1080p	3−4	24−27
ultra / 1080p	1−2	20−22
QHD / 1440p	−	16−18
4K / 2160p	0−1	8−9
low / 720p	8−9	65−70
medium / 1080p	4−5	30−35
The average gaming FPS of Radeon HD 6990M Crossfire in Metro Exodus is 800% more, than GeForce 840A.
low / 768p	85−90	130−140
high / 1080p	85−90	−
ultra / 1080p	80−85	−
medium / 1080p	85−90	120−130
The average gaming FPS of Radeon HD 6990M Crossfire in Minecraft is 49% more, than GeForce 840A.
ultra / 1080p	12−14	14−16
low / 720p	27−30	100−110
medium / 1080p	14−16	18−20
The average gaming FPS of Radeon HD 6990M Crossfire in PLAYERUNKNOWN'S BATTLEGROUNDS is 155% more, than GeForce 840A.
high / 1080p	−	24−27
ultra / 1080p	7−8	16−18
QHD / 1440p	0−1	10−11
4K / 2160p	−	7−8
low / 720p	8−9	65−70
medium / 1080p	−	35−40
The average gaming FPS of Radeon HD 6990M Crossfire in Red Dead Redemption 2 is 425% more, than GeForce 840A.
low / 768p	16−18	130−140
medium / 768p	12−14	85−90
high / 1080p	6−7	45−50
ultra / 1080p	5−6	24−27
4K / 2160p	−	16−18
The average gaming FPS of Radeon HD 6990M Crossfire in The Witcher 3: Wild Hunt is 630% more, than GeForce 840A.
low / 768p	70−75	90−95
medium / 768p	35−40	60−65
ultra / 1080p	16−18	50−55
high / 768p	30−35	60−65
The average gaming FPS of Radeon HD 6990M Crossfire in World of Tanks is 71% more, than GeForce 840A.

Full Specs

	GeForce 840A	Radeon HD 6990M Crossfire
Architecture	Maxwell	Terascale 2
Code name	GM108	Blackcomb XTX
Type	Desktop	Laptop
Release date	17 March 2014	12 July 2011
Pipelines	384	2240
Core clock speed	1029 MHz	715 MHz
Boost Clock	1124 MHz
Transistor count		2x1700 Million
Manufacturing process technology	28 nm	40 nm
Texture fill rate	17.98
Floating-point performance	863.2 gflops
Memory bus width	64 Bit	256 Bit
Memory clock speed	2002 MHz	900 MHz
Memory bandwidth	16.02 GB/s
Shared memory		-
DirectX	12 (11_0)	DirectX 11, Shader 5.0
Shader Model	5.1
OpenGL	4.6
OpenCL	1.2
Vulkan	1.1.126
CUDA	5.0
Laptop size		large
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GeForce 840A vs Radeon HD 6990M Crossfire

Radeon HD 6990M Crossfire is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

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