GeForce GTX 660 Ti vs Radeon HD 6790
If you are going to buy a new graphics card and are choosing between GeForce GTX 660 Ti and Radeon HD 6790, 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 Ti stacks up against Radeon HD 6790, check out specs charts below.
Main Specs
GeForce GTX 660 Ti
Radeon HD 6790
Power consumption (TDP)
150 Watt
150 Watt
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
Two 6-pin
2x 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, 1x DisplayPort
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Both graphics cards have the same power consumption of 150 Watt.
GeForce GTX 660 Ti is connected by PCIe 3.0 x16, and Radeon HD 6790 uses PCIe 2.0 x16 interface.
GeForce GTX 660 Ti has 1 GB more memory, than Radeon HD 6790.
Both cards are used in Desktops.
GeForce GTX 660 Ti is build with Kepler architecture, and Radeon HD 6790 - with Terascale 2.
Core clock speed of GeForce GTX 660 Ti is 75 MHz higher, than Radeon HD 6790.
GeForce GTX 660 Ti is manufactured by 28 nm process technology, and Radeon HD 6790 - by 40 nm process technology.
Radeon HD 6790 is 189 mm longer, than GeForce GTX 660 Ti.
Memory clock speed of Radeon HD 6790 is 1044 MHz higher, than GeForce GTX 660 Ti.
Game benchmarks
Assassin's Creed Odyssey
Battlefield 5
Call of Duty: Warzone
Counter-Strike: Global Offensive
Cyberpunk 2077
Dota 2
Far Cry 5
Fortnite
Forza Horizon 4
Grand Theft Auto V
Metro Exodus
Minecraft
PLAYERUNKNOWN'S BATTLEGROUNDS
Red Dead Redemption 2
The Witcher 3: Wild Hunt
World of Tanks
high / 1080p
21−24
7−8
ultra / 1080p
12−14
4−5
QHD / 1440p
8−9
0−1
4K / 2160p
5−6
−
low / 720p
40−45
18−20
medium / 1080p
27−30
9−10
The average gaming FPS of GeForce GTX 660 Ti in Assassin's Creed Odyssey is 160% more, than Radeon HD 6790.
high / 1080p
35−40
12−14
ultra / 1080p
30−35
10−12
QHD / 1440p
14−16
0−1
4K / 2160p
9−10
−
low / 720p
70−75
27−30
medium / 1080p
40−45
14−16
The average gaming FPS of GeForce GTX 660 Ti in Battlefield 5 is 187% more, than Radeon HD 6790.
low / 768p
50−55
45−50
high / 1080p
−
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GTX 660 Ti in Call of Duty: Warzone is 10% more, than Radeon HD 6790.
low / 768p
230−240
140−150
medium / 768p
210−220
120−130
ultra / 1080p
120−130
60−65
QHD / 1440p
100−110
30−35
4K / 2160p
55−60
27−30
high / 768p
170−180
90−95
The average gaming FPS of GeForce GTX 660 Ti in Counter-Strike: Global Offensive is 87% more, than Radeon HD 6790.
low / 768p
60−65
55−60
ultra / 1080p
55−60
21−24
medium / 1080p
55−60
45−50
The average gaming FPS of GeForce GTX 660 Ti in Cyberpunk 2077 is 40% more, than Radeon HD 6790.
low / 768p
120−130
85−90
medium / 768p
110−120
65−70
ultra / 1080p
85−90
35−40
The average gaming FPS of GeForce GTX 660 Ti in Dota 2 is 70% more, than Radeon HD 6790.
high / 1080p
27−30
9−10
ultra / 1080p
24−27
8−9
QHD / 1440p
20−22
−
4K / 2160p
9−10
4−5
low / 720p
55−60
21−24
medium / 1080p
30−33
10−11
The average gaming FPS of GeForce GTX 660 Ti in Far Cry 5 is 172% more, than Radeon HD 6790.
high / 1080p
35−40
16−18
ultra / 1080p
27−30
10−12
QHD / 1440p
16−18
−
low / 720p
130−140
65−70
medium / 1080p
75−80
27−30
The average gaming FPS of GeForce GTX 660 Ti in Fortnite is 122% more, than Radeon HD 6790.
high / 1080p
35−40
14−16
ultra / 1080p
27−30
12−14
QHD / 1440p
16−18
2−3
4K / 2160p
14−16
−
low / 720p
75−80
27−30
medium / 1080p
40−45
16−18
The average gaming FPS of GeForce GTX 660 Ti in Forza Horizon 4 is 166% more, than Radeon HD 6790.
low / 768p
110−120
55−60
medium / 768p
95−100
50−55
high / 1080p
45−50
14−16
ultra / 1080p
18−20
7−8
QHD / 1440p
9−10
0−1
The average gaming FPS of GeForce GTX 660 Ti in Grand Theft Auto V is 109% more, than Radeon HD 6790.
high / 1080p
14−16
5−6
ultra / 1080p
10−12
4−5
QHD / 1440p
10−12
−
4K / 2160p
3−4
0−1
low / 720p
40−45
14−16
medium / 1080p
20−22
7−8
The average gaming FPS of GeForce GTX 660 Ti in Metro Exodus is 175% more, than Radeon HD 6790.
low / 768p
120−130
95−100
high / 1080p
−
90−95
ultra / 1080p
−
85−90
medium / 1080p
110−120
95−100
The average gaming FPS of GeForce GTX 660 Ti in Minecraft is 23% more, than Radeon HD 6790.
high / 1080p
−
16−18
ultra / 1080p
14−16
14−16
low / 720p
75−80
35−40
medium / 1080p
18−20
18−20
The average gaming FPS of GeForce GTX 660 Ti in PLAYERUNKNOWN'S BATTLEGROUNDS is 60% more, than Radeon HD 6790.
high / 1080p
16−18
−
ultra / 1080p
10−12
8−9
QHD / 1440p
3−4
0−1
4K / 2160p
2−3
−
low / 720p
40−45
14−16
medium / 1080p
21−24
10−12
The average gaming FPS of GeForce GTX 660 Ti in Red Dead Redemption 2 is 127% more, than Radeon HD 6790.
low / 768p
80−85
27−30
medium / 768p
50−55
18−20
high / 1080p
27−30
10−11
ultra / 1080p
16−18
7−8
4K / 2160p
9−10
6−7
The average gaming FPS of GeForce GTX 660 Ti in The Witcher 3: Wild Hunt is 171% more, than Radeon HD 6790.
low / 768p
90−95
85−90
medium / 768p
60−65
45−50
ultra / 1080p
40−45
21−24
high / 768p
55−60
40−45
The average gaming FPS of GeForce GTX 660 Ti in World of Tanks is 26% more, than Radeon HD 6790.
Full Specs
GeForce GTX 660 Ti
Radeon HD 6790
Architecture
Kepler
Terascale 2
Code name
GK104
Barts
Type
Desktop
Desktop
Release date
16 August 2012
4 April 2011
Pipelines
1344
800
Core clock speed
915 MHz
840 MHz
Boost Clock
980 MHz
Transistor count
3,540 million
1,700 million
Manufacturing process technology
28 nm
40 nm
Texture fill rate
102.5 billion/sec
33.60
Floating-point performance
2,459.5 gflops
1,344.0 gflops
Length
9.5" (24.1 cm)
198 mm
Memory bus width
192-bit GDDR5
256 Bit
Memory clock speed
6.0 GB/s
1050 MHz
Memory bandwidth
144.2 GB/s
134.4 GB/s
Shared memory
-
DirectX
12 (11_0)
11.2 (11_0)
Shader Model
5.1
5.0
OpenGL
4.3
4.4
OpenCL
1.2
1.2
Vulkan
1.1.126
N/A
CUDA
+
CUDA cores
1344
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)
99 Mh/s
122 Mh/s
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