GeForce GTX 660 vs Radeon HD 6850

If you are going to buy a new graphics card and are choosing between GeForce GTX 660 and Radeon HD 6850, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GTX 660 stacks up against Radeon HD 6850, check out specs charts below.

GeForce GTX 660 Check Price

Radeon HD 6850 Check Price

Main Specs

	GeForce GTX 660	Radeon HD 6850
Power consumption (TDP)	140 Watt	127 Watt
Interface	PCIe 3.0 x16	PCIe 2.0 x16
Supplementary power connectors	One 6-pin	1x 6-pin
Memory type	GDDR5	GDDR5
Maximum RAM amount	2 GB	1 GB
Display Connectors	2x DVI, 1x HDMI, 1x DisplayPort	2x DVI, 1x HDMI, 2x mini-DisplayPort
	Check Price	Check Price

GeForce GTX 660 has 10% more power consumption, than Radeon HD 6850.
GeForce GTX 660 is connected by PCIe 3.0 x16, and Radeon HD 6850 uses PCIe 2.0 x16 interface.
GeForce GTX 660 has 1 GB more memory, than Radeon HD 6850.
Both cards are used in Desktops.
GeForce GTX 660 is build with Kepler architecture, and Radeon HD 6850 - with TeraScale 2.
GeForce GTX 660 is manufactured by 28 nm process technology, and Radeon HD 6850 - by 40 nm process technology.
Radeon HD 6850 is 189 mm longer, than GeForce GTX 660.

Game benchmarks


high / 1080p	20−22	9−10
ultra / 1080p	12−14	5−6
QHD / 1440p	6−7	0−1
4K / 2160p	5−6	−
low / 720p	40−45	21−24
medium / 1080p	24−27	12−14
The average gaming FPS of GeForce GTX 660 in Assassin's Creed Odyssey is 108% more, than Radeon HD 6850.
high / 1080p	30−35	16−18
ultra / 1080p	27−30	14−16
QHD / 1440p	10−12	0−1
4K / 2160p	8−9	−
low / 720p	65−70	35−40
medium / 1080p	35−40	16−18
The average gaming FPS of GeForce GTX 660 in Battlefield 5 is 95% more, than Radeon HD 6850.
low / 768p	50−55	45−50
QHD / 1440p	0−1	0−1
The average gaming FPS of GeForce GTX 660 in Call of Duty: Warzone is 10% more, than Radeon HD 6850.
low / 768p	230−240	160−170
medium / 768p	200−210	130−140
ultra / 1080p	120−130	70−75
QHD / 1440p	90−95	40−45
4K / 2160p	50−55	30−33
high / 768p	160−170	100−110
The average gaming FPS of GeForce GTX 660 in Counter-Strike: Global Offensive is 59% more, than Radeon HD 6850.
low / 768p	60−65	55−60
ultra / 1080p	50−55	27−30
medium / 1080p	55−60	45−50
The average gaming FPS of GeForce GTX 660 in Cyberpunk 2077 is 29% more, than Radeon HD 6850.
low / 768p	120−130	90−95
medium / 768p	100−110	70−75
ultra / 1080p	80−85	45−50
The average gaming FPS of GeForce GTX 660 in Dota 2 is 48% more, than Radeon HD 6850.
high / 1080p	24−27	10−12
ultra / 1080p	21−24	10−11
QHD / 1440p	18−20	−
4K / 2160p	8−9	4−5
low / 720p	50−55	24−27
medium / 1080p	27−30	12−14
The average gaming FPS of GeForce GTX 660 in Far Cry 5 is 125% more, than Radeon HD 6850.
high / 1080p	30−35	18−20
ultra / 1080p	24−27	12−14
QHD / 1440p	16−18	−
low / 720p	120−130	75−80
medium / 1080p	70−75	30−35
The average gaming FPS of GeForce GTX 660 in Fortnite is 80% more, than Radeon HD 6850.
high / 1080p	30−35	16−18
ultra / 1080p	24−27	14−16
QHD / 1440p	14−16	4−5
4K / 2160p	12−14	−
low / 720p	65−70	35−40
medium / 1080p	35−40	18−20
The average gaming FPS of GeForce GTX 660 in Forza Horizon 4 is 94% more, than Radeon HD 6850.
low / 768p	100−110	65−70
medium / 768p	90−95	55−60
high / 1080p	40−45	18−20
ultra / 1080p	16−18	8−9
QHD / 1440p	7−8	0−1
The average gaming FPS of GeForce GTX 660 in Grand Theft Auto V is 68% more, than Radeon HD 6850.
high / 1080p	12−14	6−7
ultra / 1080p	10−11	4−5
QHD / 1440p	10−11	−
4K / 2160p	3−4	1−2
low / 720p	40−45	18−20
medium / 1080p	18−20	8−9
The average gaming FPS of GeForce GTX 660 in Metro Exodus is 112% more, than Radeon HD 6850.
low / 768p	120−130	100−110
ultra / 1080p	−	90−95
medium / 1080p	110−120	95−100
The average gaming FPS of GeForce GTX 660 in Minecraft is 18% more, than Radeon HD 6850.
high / 1080p	−	18−20
ultra / 1080p	14−16	14−16
low / 720p	70−75	40−45
medium / 1080p	18−20	20−22
The average gaming FPS of GeForce GTX 660 in PLAYERUNKNOWN'S BATTLEGROUNDS is 34% more, than Radeon HD 6850.
high / 1080p	14−16	12−14
ultra / 1080p	10−11	8−9
QHD / 1440p	1−2	0−1
4K / 2160p	1−2	−
low / 720p	35−40	18−20
medium / 1080p	21−24	12−14
The average gaming FPS of GeForce GTX 660 in Red Dead Redemption 2 is 61% more, than Radeon HD 6850.
low / 768p	70−75	35−40
medium / 768p	45−50	21−24
high / 1080p	24−27	12−14
ultra / 1080p	14−16	8−9
4K / 2160p	8−9	7−8
The average gaming FPS of GeForce GTX 660 in The Witcher 3: Wild Hunt is 94% more, than Radeon HD 6850.
low / 768p	90−95	90−95
medium / 768p	60−65	50−55
ultra / 1080p	40−45	24−27
high / 768p	55−60	40−45
The average gaming FPS of GeForce GTX 660 in World of Tanks is 18% more, than Radeon HD 6850.

Full Specs

	GeForce GTX 660	Radeon HD 6850
Architecture	Kepler	TeraScale 2
Code name	GK106	Barts
Type	Desktop	Desktop
Release date	6 September 2012	21 October 2010
Pipelines	960	960
Core clock speed	980 MHz
Boost Clock	1033 MHz
Transistor count	2,540 million	1,700 million
Manufacturing process technology	28 nm	40 nm
Texture fill rate	78.4 billion/sec	37.20
Floating-point performance	1,981 gflops	1,488.0 gflops
Length	9.5" (24.1 cm)	198 mm
Memory bus width	192-bit GDDR5	256 Bit
Memory clock speed	6.0 GB/s
Memory bandwidth	144.2 GB/s	128.0 GB/s
DirectX	12 (11_0)
Shader Model	5.1	5.0
OpenGL	4.3	4.4
OpenCL	1.2	1.2
Vulkan	1.1.126
CUDA	+
CUDA cores	960
Bus support	PCI Express 3.0	AGP
Height	4.376" (11.1 cm)
SLI options	+
Multi monitor support	4 displays
HDMI	+
HDCP	+
Maximum VGA resolution	2048x1536
Audio input for HDMI	Internal
3D Blu-Ray	+
3D Gaming	+
3D Vision	+
Bitcoin / BTC (SHA256)	66 Mh/s	139 Mh/s
Eyefinity		+
Design		reference
CrossFire		+
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GeForce GTX 660 vs Radeon HD 6850

Main Specs

Game benchmarks

Full Specs

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