GeForce GTX 660 Ti vs Radeon R9 M390
If you are going to buy a new graphics card and are choosing between GeForce GTX 660 Ti and Radeon R9 M390, 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 R9 M390, check out specs charts below.
Radeon R9 M390 is a Laptop Graphics Card
Note: Radeon R9 M390 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 Radeon R9 M390 here:
Main Specs
GeForce GTX 660 Ti
Radeon R9 M390
Power consumption (TDP)
150 Watt
Interface
PCIe 3.0 x16
Supplementary power connectors
Two 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 Ti and Radeon R9 M390 have maximum RAM of 2 GB.
GeForce GTX 660 Ti is used in Desktops, and Radeon R9 M390 - in Laptops.
GeForce GTX 660 Ti is build with Kepler architecture, and Radeon R9 M390 - with GCN.
GeForce GTX 660 Ti and Radeon R9 M390 are manufactured by 28 nm process technology.
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
18−20
ultra / 1080p
12−14
10−11
QHD / 1440p
8−9
5−6
4K / 2160p
5−6
4−5
low / 720p
40−45
35−40
medium / 1080p
27−30
21−24
The average gaming FPS of GeForce GTX 660 Ti in Assassin's Creed Odyssey is 25% more, than Radeon R9 M390.
high / 1080p
35−40
27−30
ultra / 1080p
30−35
24−27
QHD / 1440p
14−16
10−12
4K / 2160p
9−10
7−8
low / 720p
70−75
60−65
medium / 1080p
40−45
30−35
The average gaming FPS of GeForce GTX 660 Ti in Battlefield 5 is 25% more, than Radeon R9 M390.
low / 768p
50−55
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 R9 M390.
low / 768p
230−240
220−230
medium / 768p
210−220
190−200
ultra / 1080p
120−130
110−120
QHD / 1440p
100−110
65−70
4K / 2160p
55−60
35−40
high / 768p
170−180
150−160
The average gaming FPS of GeForce GTX 660 Ti in Counter-Strike: Global Offensive is 15% more, than Radeon R9 M390.
low / 768p
60−65
55−60
ultra / 1080p
55−60
45−50
medium / 1080p
55−60
45−50
The average gaming FPS of GeForce GTX 660 Ti in Cyberpunk 2077 is 18% more, than Radeon R9 M390.
low / 768p
120−130
110−120
medium / 768p
110−120
100−110
ultra / 1080p
85−90
70−75
The average gaming FPS of GeForce GTX 660 Ti in Dota 2 is 12% more, than Radeon R9 M390.
high / 1080p
27−30
21−24
ultra / 1080p
24−27
18−20
QHD / 1440p
20−22
16−18
4K / 2160p
9−10
7−8
low / 720p
55−60
45−50
medium / 1080p
30−33
21−24
The average gaming FPS of GeForce GTX 660 Ti in Far Cry 5 is 27% more, than Radeon R9 M390.
high / 1080p
35−40
27−30
ultra / 1080p
27−30
21−24
QHD / 1440p
16−18
16−18
low / 720p
130−140
110−120
medium / 1080p
75−80
60−65
The average gaming FPS of GeForce GTX 660 Ti in Fortnite is 20% more, than Radeon R9 M390.
high / 1080p
35−40
30−33
ultra / 1080p
27−30
21−24
QHD / 1440p
16−18
12−14
4K / 2160p
14−16
10−12
low / 720p
75−80
60−65
medium / 1080p
40−45
30−35
The average gaming FPS of GeForce GTX 660 Ti in Forza Horizon 4 is 28% more, than Radeon R9 M390.
low / 768p
110−120
95−100
medium / 768p
95−100
85−90
high / 1080p
45−50
35−40
ultra / 1080p
18−20
14−16
QHD / 1440p
9−10
5−6
The average gaming FPS of GeForce GTX 660 Ti in Grand Theft Auto V is 18% more, than Radeon R9 M390.
high / 1080p
14−16
10−12
ultra / 1080p
10−12
9−10
QHD / 1440p
10−12
−
4K / 2160p
3−4
3−4
low / 720p
40−45
35−40
medium / 1080p
20−22
14−16
The average gaming FPS of GeForce GTX 660 Ti in Metro Exodus is 20% more, than Radeon R9 M390.
low / 768p
120−130
110−120
medium / 1080p
110−120
110−120
The average gaming FPS of GeForce GTX 660 Ti in Minecraft is 4% more, than Radeon R9 M390.
high / 1080p
−
24−27
ultra / 1080p
14−16
18−20
low / 720p
75−80
65−70
medium / 1080p
18−20
27−30
The average gaming FPS of Radeon R9 M390 in PLAYERUNKNOWN'S BATTLEGROUNDS is 2% more, than GeForce GTX 660 Ti.
high / 1080p
16−18
14−16
ultra / 1080p
10−12
10−11
QHD / 1440p
3−4
0−1
4K / 2160p
2−3
−
low / 720p
40−45
30−35
medium / 1080p
21−24
18−20
The average gaming FPS of GeForce GTX 660 Ti in Red Dead Redemption 2 is 21% more, than Radeon R9 M390.
low / 768p
80−85
65−70
medium / 768p
50−55
40−45
high / 1080p
27−30
21−24
ultra / 1080p
16−18
12−14
4K / 2160p
9−10
9−10
The average gaming FPS of GeForce GTX 660 Ti in The Witcher 3: Wild Hunt is 22% more, than Radeon R9 M390.
low / 768p
90−95
100−110
medium / 768p
60−65
65−70
ultra / 1080p
40−45
35−40
high / 768p
55−60
55−60
The average gaming FPS of Radeon R9 M390 in World of Tanks is 4% more, than GeForce GTX 660 Ti.
Full Specs
GeForce GTX 660 Ti
Radeon R9 M390
Architecture
Kepler
GCN
Code name
GK104
Pitcairn
Type
Desktop
Laptop
Release date
16 August 2012
9 June 2015
Pipelines
1344
1024
Core clock speed
915 MHz
Boost Clock
980 MHz
Transistor count
3,540 million
5000 Million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
102.5 billion/sec
Floating-point performance
2,459.5 gflops
Length
9.5" (24.1 cm)
Memory bus width
192-bit GDDR5
256 Bit
Memory clock speed
6.0 GB/s
Memory bandwidth
144.2 GB/s
Shared memory
-
-
DirectX
12 (11_0)
Shader Model
5.1
OpenGL
4.3
4.4
OpenCL
1.2
Not Listed
Vulkan
1.1.126
CUDA
+
FreeSync
+
CUDA cores
1344
Bus support
PCI Express 3.0
PCIe 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
242 Mh/s
Laptop size
large
Eyefinity
+
HD3D
+
PowerTune
+
DualGraphics
+
ZeroCore
+
Switchable graphics
+
Mantle
+
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