GeForce 840M vs Radeon HD 6990

When comparing GeForce 840M and Radeon HD 6990, 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 840M and Radeon HD 6990 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce 840M Check Price

Radeon HD 6990 Check Price

GeForce 840M is a Laptop Graphics Card

Note: GeForce 840M 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 GeForce 840M here:

GeForce 840M Laptops

Main Specs

	GeForce 840M	Radeon HD 6990
Power consumption (TDP)	33 Watt	375 Watt
Interface	PCIe 3.0 x8	PCIe 2.0 x16
Supplementary power connectors		2x 8-pin
Memory type	DDR3	GDDR5
Maximum RAM amount	4 GB	2 GB
Display Connectors	No outputs	1x DVI, 4x mini-DisplayPort
	Check Price	Check Price

Radeon HD 6990 has 1036% more power consumption, than GeForce 840M.
GeForce 840M is connected by PCIe 3.0 x8, and Radeon HD 6990 uses PCIe 2.0 x16 interface.
GeForce 840M has 2 GB more memory, than Radeon HD 6990.
GeForce 840M is used in Laptops, and Radeon HD 6990 - in Desktops.
GeForce 840M is build with Maxwell architecture, and Radeon HD 6990 - with TeraScale 3.
Core clock speed of GeForce 840M is 199 MHz higher, than Radeon HD 6990.
GeForce 840M is manufactured by 28 nm process technology, and Radeon HD 6990 - by 40 nm process technology.
Memory clock speed of Radeon HD 6990 is 3000 MHz higher, than GeForce 840M.

Game benchmarks


high / 1080p	1−2	14−16
ultra / 1080p	0−1	9−10
QHD / 1440p	0−1	3−4
low / 720p	12−14	30−35
medium / 1080p	3−4	18−20
The average gaming FPS of Radeon HD 6990 in Assassin's Creed Odyssey is 266% more, than GeForce 840M.
high / 1080p	−	24−27
ultra / 1080p	4−5	21−24
QHD / 1440p	0−1	7−8
4K / 2160p	−	5−6
low / 720p	16−18	50−55
medium / 1080p	5−6	27−30
The average gaming FPS of Radeon HD 6990 in Battlefield 5 is 277% more, than GeForce 840M.
low / 768p	45−50	45−50
high / 1080p	40−45	−
QHD / 1440p	0−1	0−1
GeForce 840M and Radeon HD 6990 have the same average FPS in Call of Duty: Warzone.
low / 768p	120−130	210−220
medium / 768p	90−95	170−180
ultra / 1080p	40−45	95−100
QHD / 1440p	24−27	50−55
4K / 2160p	18−20	30−33
high / 768p	65−70	140−150
The average gaming FPS of Radeon HD 6990 in Counter-Strike: Global Offensive is 91% more, than GeForce 840M.
low / 768p	85−90	55−60
ultra / 1080p	16−18	40−45
medium / 1080p	40−45	45−50
GeForce 840M and Radeon HD 6990 have the same average FPS in Cyberpunk 2077.
low / 768p	75−80	110−120
medium / 768p	50−55	90−95
ultra / 1080p	24−27	60−65
The average gaming FPS of Radeon HD 6990 in Dota 2 is 76% more, than GeForce 840M.
high / 1080p	2−3	18−20
ultra / 1080p	2−3	16−18
4K / 2160p	0−1	6−7
low / 720p	12−14	35−40
medium / 1080p	3−4	18−20
The average gaming FPS of Radeon HD 6990 in Far Cry 5 is 360% more, than GeForce 840M.
high / 1080p	10−11	24−27
ultra / 1080p	5−6	18−20
QHD / 1440p	2−3	16−18
low / 720p	50−55	95−100
medium / 1080p	10−12	50−55
The average gaming FPS of Radeon HD 6990 in Fortnite is 162% more, than GeForce 840M.
high / 1080p	4−5	24−27
ultra / 1080p	−	20−22
QHD / 1440p	0−1	9−10
low / 720p	16−18	50−55
medium / 1080p	7−8	27−30
The average gaming FPS of Radeon HD 6990 in Forza Horizon 4 is 288% more, than GeForce 840M.
low / 768p	45−50	85−90
medium / 768p	−	75−80
high / 1080p	5−6	30−33
ultra / 1080p	2−3	12−14
QHD / 1440p	0−1	3−4
medium / 720p	35−40	−
The average gaming FPS of Radeon HD 6990 in Grand Theft Auto V is 144% more, than GeForce 840M.
high / 1080p	1−2	9−10
ultra / 1080p	0−1	7−8
4K / 2160p	0−1	2−3
low / 720p	5−6	27−30
medium / 1080p	3−4	12−14
The average gaming FPS of Radeon HD 6990 in Metro Exodus is 466% more, than GeForce 840M.
low / 768p	90−95	110−120
high / 1080p	85−90	−
ultra / 1080p	70−75	100−110
medium / 1080p	90−95	100−110
The average gaming FPS of Radeon HD 6990 in Minecraft is 27% more, than GeForce 840M.
high / 1080p	−	21−24
ultra / 1080p	12−14	18−20
low / 720p	27−30	55−60
medium / 1080p	14−16	24−27
The average gaming FPS of Radeon HD 6990 in PLAYERUNKNOWN'S BATTLEGROUNDS is 88% more, than GeForce 840M.
high / 1080p	−	14−16
ultra / 1080p	4−5	9−10
QHD / 1440p	0−1	0−1
low / 720p	6−7	27−30
medium / 1080p	−	16−18
The average gaming FPS of Radeon HD 6990 in Red Dead Redemption 2 is 280% more, than GeForce 840M.
low / 768p	12−14	55−60
medium / 768p	9−10	30−35
high / 1080p	4−5	18−20
ultra / 1080p	3−4	10−12
4K / 2160p	0−1	8−9
The average gaming FPS of Radeon HD 6990 in The Witcher 3: Wild Hunt is 328% more, than GeForce 840M.
low / 768p	75−80	100−110
medium / 768p	35−40	60−65
ultra / 1080p	16−18	35−40
high / 768p	30−35	50−55
The average gaming FPS of Radeon HD 6990 in World of Tanks is 56% more, than GeForce 840M.

Full Specs

	GeForce 840M	Radeon HD 6990
Architecture	Maxwell	TeraScale 3
Code name	N15S-GT	Antilles
Type	Laptop	Desktop
Release date	12 March 2014	8 March 2011
Pipelines	384	1536
Core clock speed	1029 MHz	830 MHz
Boost Clock	1124 MHz
Transistor count		2,640 million
Manufacturing process technology	28 nm	40 nm
Texture fill rate	17.98	79.68
Floating-point performance	863.2 gflops	2x 2,549.8 gflops
Length		295 mm
Memory bus width	64 Bit	256 Bit
Memory clock speed	2000 MHz	5000 MHz
Memory bandwidth	16.02 GB/s	160.0 GB/s
Shared memory	-
DirectX	12 (11_0)	11.2 (11_0)
Shader Model	5.1	5.0
OpenGL	4.5	4.4
OpenCL	1.2	1.2
Vulkan	1.1.126	N/A
CUDA	+
Bus support	PCI Express 2.0, PCI Express 3.0
Bitcoin / BTC (SHA256)	92 Mh/s	265 Mh/s
Laptop size	medium sized
Optimus	+
Ethereum / ETH (DaggerHashimoto)		24 Mh/s
GPU Boost	2.0
GameWorks	+
	Check Price	Check Price

GeForce 840M vs Radeon HD 6990

GeForce 840M is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

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