GeForce GTX 660 vs Radeon HD 7770

If you are going to buy a new graphics card and are choosing between GeForce GTX 660 and Radeon HD 7770, 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 7770, check out specs charts below.

GeForce GTX 660 Check Price

Radeon HD 7770 Check Price

Main Specs

	GeForce GTX 660	Radeon HD 7770
Power consumption (TDP)	140 Watt
Interface	PCIe 3.0 x16
Supplementary power connectors	One 6-pin
Memory type	GDDR5	GDDR5
Maximum RAM amount	2 GB	2 GB
Display Connectors	2x DVI, 1x HDMI, 1x DisplayPort
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GeForce GTX 660 and Radeon HD 7770 have maximum RAM of 2 GB.
Both cards are used in Desktops.
GeForce GTX 660 is build with Kepler architecture, and Radeon HD 7770 - with GCN.
Core clock speed of Radeon HD 7770 is 20 MHz higher, than GeForce GTX 660.
GeForce GTX 660 and Radeon HD 7770 are manufactured by 28 nm process technology.
Memory clock speed of Radeon HD 7770 is 4494 MHz higher, than GeForce GTX 660.

Game benchmarks


high / 1080p	20−22	10−11
ultra / 1080p	12−14	6−7
QHD / 1440p	6−7	1−2
4K / 2160p	5−6	−
low / 720p	40−45	24−27
medium / 1080p	24−27	12−14
The average gaming FPS of GeForce GTX 660 in Assassin's Creed Odyssey is 90% more, than Radeon HD 7770.
high / 1080p	30−35	16−18
ultra / 1080p	27−30	14−16
QHD / 1440p	10−12	1−2
4K / 2160p	8−9	−
low / 720p	65−70	35−40
medium / 1080p	35−40	18−20
The average gaming FPS of GeForce GTX 660 in Battlefield 5 is 94% more, than Radeon HD 7770.
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 7770.
low / 768p	230−240	170−180
medium / 768p	200−210	140−150
ultra / 1080p	120−130	75−80
QHD / 1440p	90−95	40−45
4K / 2160p	50−55	30−33
high / 768p	160−170	110−120
The average gaming FPS of GeForce GTX 660 in Counter-Strike: Global Offensive is 49% more, than Radeon HD 7770.
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 7770.
low / 768p	120−130	95−100
medium / 768p	100−110	75−80
ultra / 1080p	80−85	45−50
The average gaming FPS of GeForce GTX 660 in Dota 2 is 40% more, than Radeon HD 7770.
high / 1080p	24−27	12−14
ultra / 1080p	21−24	10−12
QHD / 1440p	18−20	−
4K / 2160p	8−9	5−6
low / 720p	50−55	27−30
medium / 1080p	27−30	12−14
The average gaming FPS of GeForce GTX 660 in Far Cry 5 is 92% more, than Radeon HD 7770.
high / 1080p	30−35	18−20
ultra / 1080p	24−27	14−16
QHD / 1440p	16−18	−
low / 720p	120−130	80−85
medium / 1080p	70−75	35−40
The average gaming FPS of GeForce GTX 660 in Fortnite is 65% more, than Radeon HD 7770.
high / 1080p	30−35	18−20
ultra / 1080p	24−27	14−16
QHD / 1440p	14−16	5−6
4K / 2160p	12−14	−
low / 720p	65−70	35−40
medium / 1080p	35−40	21−24
The average gaming FPS of GeForce GTX 660 in Forza Horizon 4 is 84% more, than Radeon HD 7770.
low / 768p	100−110	65−70
medium / 768p	90−95	60−65
high / 1080p	40−45	21−24
ultra / 1080p	16−18	9−10
QHD / 1440p	7−8	0−1
The average gaming FPS of GeForce GTX 660 in Grand Theft Auto V is 60% more, than Radeon HD 7770.
high / 1080p	12−14	7−8
ultra / 1080p	10−11	5−6
QHD / 1440p	10−11	−
4K / 2160p	3−4	1−2
low / 720p	40−45	20−22
medium / 1080p	18−20	9−10
The average gaming FPS of GeForce GTX 660 in Metro Exodus is 88% more, than Radeon HD 7770.
low / 768p	120−130	100−110
ultra / 1080p	−	90−95
medium / 1080p	110−120	100−105
The average gaming FPS of GeForce GTX 660 in Minecraft is 16% more, than Radeon HD 7770.
high / 1080p	−	18−20
ultra / 1080p	14−16	16−18
low / 720p	70−75	45−50
medium / 1080p	18−20	21−24
The average gaming FPS of GeForce GTX 660 in PLAYERUNKNOWN'S BATTLEGROUNDS is 20% more, than Radeon HD 7770.
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	20−22
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 7770.
low / 768p	70−75	35−40
medium / 768p	45−50	24−27
high / 1080p	24−27	14−16
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 83% more, than Radeon HD 7770.
low / 768p	90−95	95−100
medium / 768p	60−65	55−60
ultra / 1080p	40−45	27−30
high / 768p	55−60	45−50
The average gaming FPS of GeForce GTX 660 in World of Tanks is 10% more, than Radeon HD 7770.

Full Specs

	GeForce GTX 660	Radeon HD 7770
Architecture	Kepler	GCN
Code name	GK106	Cape Verde
Type	Desktop	Desktop
Release date	6 September 2012	15 February 2012
Pipelines	960	640
Core clock speed	980 MHz	1000 MHz
Boost Clock	1033 MHz
Transistor count	2,540 million
Manufacturing process technology	28 nm	28 nm
Texture fill rate	78.4 billion/sec
Floating-point performance	1,981 gflops
Length	9.5" (24.1 cm)
Memory bus width	192-bit GDDR5	128 Bit
Memory clock speed	6.0 GB/s	4500 MHz
Memory bandwidth	144.2 GB/s
Shared memory		-
DirectX	12 (11_0)	DirectX 11.1, Shader 5.1
Shader Model	5.1
OpenGL	4.3
OpenCL	1.2
Vulkan	1.1.126
CUDA	+
CUDA cores	960
Bus support	PCI Express 3.0
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	156 Mh/s
Eyefinity		+
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GeForce GTX 660 vs Radeon HD 7770

Main Specs

Game benchmarks

Full Specs

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