GeForce GTX 660M vs Radeon HD 6850 X2

When choosing between GeForce GTX 660M and Radeon HD 6850 X2, 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 GTX 660M and Radeon HD 6850 X2.

GeForce GTX 660M Check Price

Radeon HD 6850 X2

GeForce GTX 660M is a Laptop Graphics Card

Note: GeForce GTX 660M 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 GTX 660M here:

GeForce GTX 660M Laptops

Main Specs

	GeForce GTX 660M	Radeon HD 6850 X2
Power consumption (TDP)	50 Watt	254 Watt
Interface	MXM-B (3.0)	PCIe 2.0 x16
Supplementary power connectors		2x 8-pin
Memory type	GDDR5	GDDR5
Maximum RAM amount	2 GB	2 GB
Display Connectors	No outputs	2x DVI, 1x HDMI, 1x DisplayPort
	Check Price

Radeon HD 6850 X2 has 408% more power consumption, than GeForce GTX 660M.
GeForce GTX 660M is connected by MXM-B (3.0), and Radeon HD 6850 X2 uses PCIe 2.0 x16 interface.
GeForce GTX 660M and Radeon HD 6850 X2 have maximum RAM of 2 GB.
GeForce GTX 660M is used in Laptops, and Radeon HD 6850 X2 - in Desktops.
GeForce GTX 660M is build with Kepler architecture, and Radeon HD 6850 X2 - with TeraScale 2.
Core clock speed of GeForce GTX 660M is 35 MHz higher, than Radeon HD 6850 X2.
GeForce GTX 660M is manufactured by 28 nm process technology, and Radeon HD 6850 X2 - by 40 nm process technology.
Memory clock speed of Radeon HD 6850 X2 is 2200 MHz higher, than GeForce GTX 660M.

Game benchmarks


high / 1080p	6−7	12−14
ultra / 1080p	4−5	7−8
QHD / 1440p	0−1	2−3
low / 720p	16−18	27−30
medium / 1080p	8−9	16−18
The average gaming FPS of Radeon HD 6850 X2 in Assassin's Creed Odyssey is 77% more, than GeForce GTX 660M.
high / 1080p	12−14	21−24
ultra / 1080p	10−11	18−20
QHD / 1440p	0−1	4−5
low / 720p	24−27	45−50
medium / 1080p	12−14	21−24
The average gaming FPS of Radeon HD 6850 X2 in Battlefield 5 is 80% more, than GeForce GTX 660M.
low / 768p	45−50	45−50
high / 1080p	45−50	−
QHD / 1440p	0−1	0−1
GeForce GTX 660M and Radeon HD 6850 X2 have the same average FPS in Call of Duty: Warzone.
low / 768p	130−140	190−200
medium / 768p	110−120	160−170
ultra / 1080p	50−55	85−90
QHD / 1440p	27−30	45−50
4K / 2160p	27−30	30−33
high / 768p	80−85	120−130
The average gaming FPS of Radeon HD 6850 X2 in Counter-Strike: Global Offensive is 47% more, than GeForce GTX 660M.
low / 768p	55−60	55−60
ultra / 1080p	18−20	35−40
medium / 1080p	45−50	45−50
The average gaming FPS of Radeon HD 6850 X2 in Cyberpunk 2077 is 14% more, than GeForce GTX 660M.
low / 768p	80−85	100−110
medium / 768p	55−60	85−90
ultra / 1080p	30−35	55−60
The average gaming FPS of Radeon HD 6850 X2 in Dota 2 is 45% more, than GeForce GTX 660M.
high / 1080p	8−9	14−16
ultra / 1080p	7−8	14−16
4K / 2160p	3−4	5−6
low / 720p	18−20	30−35
medium / 1080p	8−9	16−18
The average gaming FPS of Radeon HD 6850 X2 in Far Cry 5 is 88% more, than GeForce GTX 660M.
high / 1080p	14−16	21−24
ultra / 1080p	10−11	16−18
QHD / 1440p	−	16−18
low / 720p	60−65	85−90
medium / 1080p	21−24	45−50
The average gaming FPS of Radeon HD 6850 X2 in Fortnite is 59% more, than GeForce GTX 660M.
high / 1080p	12−14	21−24
ultra / 1080p	10−12	16−18
QHD / 1440p	1−2	7−8
low / 720p	24−27	45−50
medium / 1080p	14−16	24−27
The average gaming FPS of Radeon HD 6850 X2 in Forza Horizon 4 is 84% more, than GeForce GTX 660M.
low / 768p	50−55	75−80
medium / 768p	45−50	65−70
high / 1080p	12−14	24−27
ultra / 1080p	6−7	10−11
QHD / 1440p	0−1	1−2
The average gaming FPS of Radeon HD 6850 X2 in Grand Theft Auto V is 55% more, than GeForce GTX 660M.
high / 1080p	4−5	8−9
ultra / 1080p	3−4	6−7
4K / 2160p	0−1	2−3
low / 720p	12−14	24−27
medium / 1080p	6−7	10−12
The average gaming FPS of Radeon HD 6850 X2 in Metro Exodus is 100% more, than GeForce GTX 660M.
low / 768p	95−100	100−110
high / 1080p	90−95	−
ultra / 1080p	80−85	95−100
medium / 1080p	90−95	100−110
The average gaming FPS of Radeon HD 6850 X2 in Minecraft is 13% more, than GeForce GTX 660M.
high / 1080p	16−18	21−24
ultra / 1080p	14−16	16−18
low / 720p	30−35	50−55
medium / 1080p	18−20	21−24
The average gaming FPS of Radeon HD 6850 X2 in PLAYERUNKNOWN'S BATTLEGROUNDS is 40% more, than GeForce GTX 660M.
high / 1080p	−	12−14
ultra / 1080p	7−8	9−10
QHD / 1440p	0−1	0−1
low / 720p	12−14	24−27
medium / 1080p	10−12	14−16
The average gaming FPS of Radeon HD 6850 X2 in Red Dead Redemption 2 is 60% more, than GeForce GTX 660M.
low / 768p	24−27	45−50
medium / 768p	16−18	27−30
high / 1080p	9−10	16−18
ultra / 1080p	6−7	9−10
4K / 2160p	6−7	7−8
The average gaming FPS of Radeon HD 6850 X2 in The Witcher 3: Wild Hunt is 69% more, than GeForce GTX 660M.
low / 768p	85−90	95−100
medium / 768p	45−50	55−60
ultra / 1080p	18−20	30−35
high / 768p	35−40	50−55
The average gaming FPS of Radeon HD 6850 X2 in World of Tanks is 27% more, than GeForce GTX 660M.

Full Specs

	GeForce GTX 660M	Radeon HD 6850 X2
Architecture	Kepler	TeraScale 2
Code name	N13E-GE	Barts
Type	Laptop	Desktop
Release date	22 March 2012	19 September 2011
Pipelines	384	960
Core clock speed	835 MHz	800 MHz
Boost Clock	950 MHz
Transistor count	1,270 million	1,700 million
Manufacturing process technology	28 nm	40 nm
Texture fill rate	30.4 billion/sec	38.40
Floating-point performance	729.6 gflops	2x 1,536.0 gflops
Memory bus width	128bit	256 Bit
Memory clock speed	2000 MHz	4200 MHz
Memory bandwidth	64.0 GB/s	134.4 GB/s
Shared memory	-
DirectX	12 API	11.2 (11_0)
Shader Model	5.1	5.0
OpenGL	4.5	4.4
OpenCL	1.1	1.2
Vulkan	1.1.126	N/A
CUDA	+
CUDA cores	384
Bus support	PCI Express 2.0, PCI Express 3.0
SLI options	+
HDMI	+
HDCP	+
Maximum VGA resolution	Up to 2048x1536
Bitcoin / BTC (SHA256)	36 Mh/s
Laptop size	large
Optimus	+
	Check Price

GeForce GTX 660M vs Radeon HD 6850 X2

GeForce GTX 660M is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

Similar compares