GeForce GTX 660M vs Radeon R9 M395X
When comparing GeForce GTX 660M and Radeon R9 M395X, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GTX 660M and Radeon R9 M395X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
GeForce GTX 660M and Radeon R9 M395X are Laptop Graphics Cards
Note: GeForce GTX 660M and Radeon R9 M395X are only used in laptop graphics. They have 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 or Radeon R9 M395X here:
Main Specs
GeForce GTX 660M
Radeon R9 M395X
Power consumption (TDP)
50 Watt
250 Watt
Interface
MXM-B (3.0)
PCIe 3.0 x16
Supplementary power connectors
None
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Display Connectors
No outputs
No outputs
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Radeon R9 M395X has 400% more power consumption, than GeForce GTX 660M.
GeForce GTX 660M is connected by MXM-B (3.0), and Radeon R9 M395X uses PCIe 3.0 x16 interface.
Radeon R9 M395X has 2 GB more memory, than GeForce GTX 660M.
Both cards are used in Laptops.
GeForce GTX 660M is build with Kepler architecture, and Radeon R9 M395X - with GCN 3.
Core clock speed of GeForce GTX 660M is 112 MHz higher, than Radeon R9 M395X.
GeForce GTX 660M and Radeon R9 M395X are manufactured by 28 nm process technology.
Memory clock speed of GeForce GTX 660M is 750 MHz higher, than Radeon R9 M395X.
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
6−7
24−27
ultra / 1080p
4−5
14−16
QHD / 1440p
0−1
9−10
4K / 2160p
−
6−7
low / 720p
16−18
45−50
medium / 1080p
8−9
30−35
The average gaming FPS of Radeon R9 M395X in Assassin's Creed Odyssey is 233% more, than GeForce GTX 660M.
high / 1080p
12−14
35−40
ultra / 1080p
10−11
30−35
QHD / 1440p
0−1
18−20
4K / 2160p
−
10−11
low / 720p
24−27
80−85
medium / 1080p
12−14
40−45
The average gaming FPS of Radeon R9 M395X in Battlefield 5 is 220% more, than GeForce GTX 660M.
low / 768p
45−50
50−55
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon R9 M395X in Call of Duty: Warzone is 10% more, than GeForce GTX 660M.
low / 768p
130−140
240−250
medium / 768p
110−120
210−220
ultra / 1080p
50−55
130−140
QHD / 1440p
27−30
100−110
4K / 2160p
27−30
60−65
high / 768p
80−85
180−190
The average gaming FPS of Radeon R9 M395X in Counter-Strike: Global Offensive is 115% more, than GeForce GTX 660M.
low / 768p
55−60
60−65
ultra / 1080p
18−20
−
medium / 1080p
45−50
55−60
The average gaming FPS of Radeon R9 M395X in Cyberpunk 2077 is 15% more, than GeForce GTX 660M.
low / 768p
80−85
120−130
medium / 768p
55−60
110−120
ultra / 1080p
30−35
85−90
The average gaming FPS of Radeon R9 M395X in Dota 2 is 91% more, than GeForce GTX 660M.
high / 1080p
8−9
30−35
ultra / 1080p
7−8
27−30
QHD / 1440p
−
21−24
4K / 2160p
3−4
10−11
low / 720p
18−20
60−65
medium / 1080p
8−9
30−35
The average gaming FPS of Radeon R9 M395X in Far Cry 5 is 266% more, than GeForce GTX 660M.
high / 1080p
14−16
35−40
ultra / 1080p
10−11
30−35
QHD / 1440p
−
18−20
low / 720p
60−65
140−150
medium / 1080p
21−24
85−90
The average gaming FPS of Radeon R9 M395X in Fortnite is 177% more, than GeForce GTX 660M.
high / 1080p
12−14
40−45
ultra / 1080p
10−12
30−35
QHD / 1440p
1−2
18−20
4K / 2160p
−
16−18
low / 720p
24−27
80−85
medium / 1080p
14−16
45−50
The average gaming FPS of Radeon R9 M395X in Forza Horizon 4 is 238% more, than GeForce GTX 660M.
low / 768p
50−55
110−120
medium / 768p
45−50
100−110
high / 1080p
12−14
50−55
ultra / 1080p
6−7
21−24
QHD / 1440p
0−1
10−12
The average gaming FPS of Radeon R9 M395X in Grand Theft Auto V is 151% more, than GeForce GTX 660M.
high / 1080p
4−5
16−18
ultra / 1080p
3−4
12−14
QHD / 1440p
−
12−14
4K / 2160p
0−1
4−5
low / 720p
12−14
45−50
medium / 1080p
6−7
21−24
The average gaming FPS of Radeon R9 M395X in Metro Exodus is 316% more, than GeForce GTX 660M.
low / 768p
95−100
120−130
high / 1080p
90−95
−
ultra / 1080p
80−85
−
medium / 1080p
90−95
110−120
The average gaming FPS of Radeon R9 M395X in Minecraft is 26% more, than GeForce GTX 660M.
high / 1080p
16−18
−
ultra / 1080p
14−16
14−16
low / 720p
30−35
80−85
medium / 1080p
18−20
18−20
The average gaming FPS of Radeon R9 M395X in PLAYERUNKNOWN'S BATTLEGROUNDS is 72% more, than GeForce GTX 660M.
high / 1080p
−
18−20
ultra / 1080p
7−8
12−14
QHD / 1440p
0−1
4−5
4K / 2160p
−
3−4
low / 720p
12−14
45−50
medium / 1080p
10−12
24−27
The average gaming FPS of Radeon R9 M395X in Red Dead Redemption 2 is 180% more, than GeForce GTX 660M.
low / 768p
24−27
90−95
medium / 768p
16−18
55−60
high / 1080p
9−10
30−35
ultra / 1080p
6−7
16−18
4K / 2160p
6−7
10−11
The average gaming FPS of Radeon R9 M395X in The Witcher 3: Wild Hunt is 223% more, than GeForce GTX 660M.
low / 768p
85−90
90−95
medium / 768p
45−50
60−65
ultra / 1080p
18−20
45−50
high / 768p
35−40
55−60
The average gaming FPS of Radeon R9 M395X in World of Tanks is 38% more, than GeForce GTX 660M.
Full Specs
GeForce GTX 660M
Radeon R9 M395X
Architecture
Kepler
GCN 3
Code name
N13E-GE
Amethyst XT
Type
Laptop
Laptop
Release date
22 March 2012
16 October 2014
Pipelines
384
2048
Core clock speed
835 MHz
723 MHz
Boost Clock
950 MHz
Transistor count
1,270 million
5,000 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
30.4 billion/sec
92.54
Floating-point performance
729.6 gflops
2,961 gflops
Memory bus width
128bit
256 Bit
Memory clock speed
2000 MHz
1250 MHz
Memory bandwidth
64.0 GB/s
160.0 GB/s
Shared memory
-
-
DirectX
12 API
Shader Model
5.1
6.3
OpenGL
4.5
4.4
OpenCL
1.1
Not Listed
Vulkan
1.1.126
CUDA
+
FreeSync
+
CUDA cores
384
Bus support
PCI Express 2.0, PCI Express 3.0
PCIe 3.0
SLI options
+
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
Bitcoin / BTC (SHA256)
36 Mh/s
413 Mh/s
Laptop size
large
large
Optimus
+
Eyefinity
+
HD3D
+
PowerTune
+
DualGraphics
+
TrueAudio
+
ZeroCore
+
Switchable graphics
+
Mantle
+
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