GeForce GTX 660M vs GeForce GTX 680MX
When comparing GeForce GTX 660M and GeForce GTX 680MX, 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 GeForce GTX 680MX is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
GeForce GTX 660M and GeForce GTX 680MX are Laptop Graphics Cards
Note: GeForce GTX 660M and GeForce GTX 680MX 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 GeForce GTX 680MX here:
Main Specs
GeForce GTX 660M
GeForce GTX 680MX
Power consumption (TDP)
50 Watt
122 Watt
Interface
MXM-B (3.0)
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Display Connectors
No outputs
Check Price
Check Price
GeForce GTX 680MX has 144% more power consumption, than GeForce GTX 660M.
GeForce GTX 660M and GeForce GTX 680MX have maximum RAM of 2 GB.
Both cards are used in Laptops.
GeForce GTX 660M and GeForce GTX 680MX are build with Kepler architecture.
Core clock speed of GeForce GTX 660M is 115 MHz higher, than GeForce GTX 680MX.
GeForce GTX 660M and GeForce GTX 680MX are manufactured by 28 nm process technology.
Memory clock speed of GeForce GTX 680MX is 500 MHz higher, than GeForce GTX 660M.
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
21−24
ultra / 1080p
4−5
12−14
QHD / 1440p
0−1
7−8
4K / 2160p
−
5−6
low / 720p
16−18
40−45
medium / 1080p
8−9
27−30
The average gaming FPS of GeForce GTX 680MX in Assassin's Creed Odyssey is 188% more, than GeForce GTX 660M.
high / 1080p
12−14
35−40
ultra / 1080p
10−11
30−33
QHD / 1440p
0−1
14−16
4K / 2160p
−
9−10
low / 720p
24−27
70−75
medium / 1080p
12−14
40−45
The average gaming FPS of GeForce GTX 680MX in Battlefield 5 is 206% 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 GeForce GTX 680MX in Call of Duty: Warzone is 10% more, than GeForce GTX 660M.
low / 768p
130−140
230−240
medium / 768p
110−120
200−210
ultra / 1080p
50−55
120−130
QHD / 1440p
27−30
100−110
4K / 2160p
27−30
55−60
high / 768p
80−85
170−180
The average gaming FPS of GeForce GTX 680MX in Counter-Strike: Global Offensive is 105% more, than GeForce GTX 660M.
low / 768p
55−60
60−65
ultra / 1080p
18−20
50−55
medium / 1080p
45−50
55−60
The average gaming FPS of GeForce GTX 680MX in Cyberpunk 2077 is 39% more, than GeForce GTX 660M.
low / 768p
80−85
120−130
medium / 768p
55−60
110−120
ultra / 1080p
30−35
80−85
The average gaming FPS of GeForce GTX 680MX in Dota 2 is 87% more, than GeForce GTX 660M.
high / 1080p
8−9
27−30
ultra / 1080p
7−8
24−27
QHD / 1440p
−
20−22
4K / 2160p
3−4
8−9
low / 720p
18−20
55−60
medium / 1080p
8−9
27−30
The average gaming FPS of GeForce GTX 680MX in Far Cry 5 is 222% more, than GeForce GTX 660M.
high / 1080p
14−16
35−40
ultra / 1080p
10−11
27−30
QHD / 1440p
−
16−18
low / 720p
60−65
130−140
medium / 1080p
21−24
75−80
The average gaming FPS of GeForce GTX 680MX in Fortnite is 155% more, than GeForce GTX 660M.
high / 1080p
12−14
35−40
ultra / 1080p
10−12
27−30
QHD / 1440p
1−2
16−18
4K / 2160p
−
14−16
low / 720p
24−27
70−75
medium / 1080p
14−16
40−45
The average gaming FPS of GeForce GTX 680MX in Forza Horizon 4 is 200% more, than GeForce GTX 660M.
low / 768p
50−55
100−110
medium / 768p
45−50
95−100
high / 1080p
12−14
40−45
ultra / 1080p
6−7
18−20
QHD / 1440p
0−1
8−9
The average gaming FPS of GeForce GTX 680MX in Grand Theft Auto V is 127% more, than GeForce GTX 660M.
high / 1080p
4−5
14−16
ultra / 1080p
3−4
10−12
QHD / 1440p
−
10−12
4K / 2160p
0−1
3−4
low / 720p
12−14
40−45
medium / 1080p
6−7
18−20
The average gaming FPS of GeForce GTX 680MX in Metro Exodus is 250% 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 GeForce GTX 680MX in Minecraft is 26% more, than GeForce GTX 660M.
high / 1080p
16−18
−
ultra / 1080p
14−16
14−16
low / 720p
30−35
75−80
medium / 1080p
18−20
18−20
The average gaming FPS of GeForce GTX 680MX in PLAYERUNKNOWN'S BATTLEGROUNDS is 68% more, than GeForce GTX 660M.
high / 1080p
−
16−18
ultra / 1080p
7−8
10−12
QHD / 1440p
0−1
2−3
4K / 2160p
−
2−3
low / 720p
12−14
40−45
medium / 1080p
10−12
21−24
The average gaming FPS of GeForce GTX 680MX in Red Dead Redemption 2 is 150% more, than GeForce GTX 660M.
low / 768p
24−27
80−85
medium / 768p
16−18
50−55
high / 1080p
9−10
27−30
ultra / 1080p
6−7
14−16
4K / 2160p
6−7
9−10
The average gaming FPS of GeForce GTX 680MX in The Witcher 3: Wild Hunt is 184% more, than GeForce GTX 660M.
low / 768p
85−90
90−95
medium / 768p
45−50
60−65
ultra / 1080p
18−20
40−45
high / 768p
35−40
55−60
The average gaming FPS of GeForce GTX 680MX in World of Tanks is 34% more, than GeForce GTX 660M.
Full Specs
GeForce GTX 660M
GeForce GTX 680MX
Architecture
Kepler
Kepler
Code name
N13E-GE
Type
Laptop
Laptop
Release date
22 March 2012
23 October 2012
Pipelines
384
1536
Core clock speed
835 MHz
720 MHz
Boost Clock
950 MHz
Transistor count
1,270 million
3540 Million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
30.4 billion/sec
92.2 billion/sec
Floating-point performance
729.6 gflops
Memory bus width
128bit
256 Bit
Memory clock speed
2000 MHz
2500 MHz
Memory bandwidth
64.0 GB/s
160 GB/s
Shared memory
-
-
DirectX
12 API
12 API
Shader Model
5.1
OpenGL
4.5
4.5
OpenCL
1.1
1.1
Vulkan
1.1.126
CUDA
+
+
CUDA cores
384
1536
Bus support
PCI Express 2.0, PCI Express 3.0
PCI Express 3.0
SLI options
+
+
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
3D Vision
+
Bitcoin / BTC (SHA256)
36 Mh/s
57 Mh/s
Laptop size
large
large
Optimus
+
+
Check Price
Check Price