GeForce GTX 660M vs GeForce GTX 680M
If you are going to buy a new graphics card and are choosing between GeForce GTX 660M and GeForce GTX 680M, 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 660M stacks up against GeForce GTX 680M, check out specs charts below.
GeForce GTX 660M and GeForce GTX 680M are Laptop Graphics Cards
Note: GeForce GTX 660M and GeForce GTX 680M 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 680M here:
Main Specs
GeForce GTX 660M
GeForce GTX 680M
Power consumption (TDP)
50 Watt
100 Watt
Interface
MXM-B (3.0)
MXM-B (3.0)
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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GeForce GTX 680M has 100% more power consumption, than GeForce GTX 660M.
Both video cards are using MXM-B (3.0) interface connection to a motherboard.
GeForce GTX 680M has 2 GB more memory, than GeForce GTX 660M.
Both cards are used in Laptops.
GeForce GTX 660M and GeForce GTX 680M are build with Kepler architecture.
Core clock speed of GeForce GTX 660M is 115 MHz higher, than GeForce GTX 680M.
GeForce GTX 660M and GeForce GTX 680M are manufactured by 28 nm process technology.
Memory clock speed of GeForce GTX 660M is 200 MHz higher, than GeForce GTX 680M.
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
16−18
ultra / 1080p
4−5
9−10
QHD / 1440p
0−1
4−5
4K / 2160p
−
4−5
low / 720p
16−18
30−35
medium / 1080p
8−9
20−22
The average gaming FPS of GeForce GTX 680M in Assassin's Creed Odyssey is 122% more, than GeForce GTX 660M.
high / 1080p
12−14
24−27
ultra / 1080p
10−11
21−24
QHD / 1440p
0−1
9−10
4K / 2160p
−
6−7
low / 720p
24−27
55−60
medium / 1080p
12−14
27−30
The average gaming FPS of GeForce GTX 680M in Battlefield 5 is 120% more, than GeForce GTX 660M.
low / 768p
45−50
45−50
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
GeForce GTX 660M and GeForce GTX 680M have the same average FPS in Call of Duty: Warzone.
low / 768p
130−140
210−220
medium / 768p
110−120
180−190
ultra / 1080p
50−55
100−110
QHD / 1440p
27−30
55−60
4K / 2160p
27−30
30−35
high / 768p
80−85
140−150
The average gaming FPS of GeForce GTX 680M in Counter-Strike: Global Offensive is 68% more, than GeForce GTX 660M.
low / 768p
55−60
55−60
ultra / 1080p
18−20
40−45
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GTX 680M in Cyberpunk 2077 is 19% more, than GeForce GTX 660M.
low / 768p
80−85
110−120
medium / 768p
55−60
95−100
ultra / 1080p
30−35
65−70
The average gaming FPS of GeForce GTX 680M in Dota 2 is 63% more, than GeForce GTX 660M.
high / 1080p
8−9
18−20
ultra / 1080p
7−8
18−20
QHD / 1440p
−
16−18
4K / 2160p
3−4
6−7
low / 720p
18−20
40−45
medium / 1080p
8−9
21−24
The average gaming FPS of GeForce GTX 680M in Far Cry 5 is 133% more, than GeForce GTX 660M.
high / 1080p
14−16
27−30
ultra / 1080p
10−11
21−24
QHD / 1440p
−
16−18
low / 720p
60−65
100−110
medium / 1080p
21−24
55−60
The average gaming FPS of GeForce GTX 680M in Fortnite is 96% more, than GeForce GTX 660M.
high / 1080p
12−14
27−30
ultra / 1080p
10−12
21−24
QHD / 1440p
1−2
10−11
4K / 2160p
−
10−11
low / 720p
24−27
55−60
medium / 1080p
14−16
30−35
The average gaming FPS of GeForce GTX 680M in Forza Horizon 4 is 130% more, than GeForce GTX 660M.
low / 768p
50−55
90−95
medium / 768p
45−50
80−85
high / 1080p
12−14
30−35
ultra / 1080p
6−7
12−14
QHD / 1440p
0−1
4−5
The average gaming FPS of GeForce GTX 680M in Grand Theft Auto V is 89% more, than GeForce GTX 660M.
high / 1080p
4−5
10−11
ultra / 1080p
3−4
8−9
4K / 2160p
0−1
3−4
low / 720p
12−14
30−35
medium / 1080p
6−7
14−16
The average gaming FPS of GeForce GTX 680M in Metro Exodus is 166% more, than GeForce GTX 660M.
low / 768p
95−100
110−120
high / 1080p
90−95
−
ultra / 1080p
80−85
−
medium / 1080p
90−95
100−110
The average gaming FPS of GeForce GTX 680M in Minecraft is 15% more, than GeForce GTX 660M.
high / 1080p
16−18
24−27
ultra / 1080p
14−16
18−20
low / 720p
30−35
60−65
medium / 1080p
18−20
24−27
The average gaming FPS of GeForce GTX 680M in PLAYERUNKNOWN'S BATTLEGROUNDS is 65% more, than GeForce GTX 660M.
high / 1080p
−
14−16
ultra / 1080p
7−8
10−11
QHD / 1440p
0−1
0−1
low / 720p
12−14
30−35
medium / 1080p
10−12
16−18
The average gaming FPS of GeForce GTX 680M in Red Dead Redemption 2 is 100% more, than GeForce GTX 660M.
low / 768p
24−27
60−65
medium / 768p
16−18
35−40
high / 1080p
9−10
20−22
ultra / 1080p
6−7
12−14
4K / 2160p
6−7
8−9
The average gaming FPS of GeForce GTX 680M in The Witcher 3: Wild Hunt is 115% more, than GeForce GTX 660M.
low / 768p
85−90
100−110
medium / 768p
45−50
60−65
ultra / 1080p
18−20
35−40
high / 768p
35−40
55−60
The average gaming FPS of GeForce GTX 680M in World of Tanks is 38% more, than GeForce GTX 660M.
Full Specs
GeForce GTX 660M
GeForce GTX 680M
Architecture
Kepler
Kepler
Code name
N13E-GE
N13E-GTX
Type
Laptop
Laptop
Release date
22 March 2012
4 June 2012
Pipelines
384
1344
Core clock speed
835 MHz
720 MHz
Boost Clock
950 MHz
758 MHz
Transistor count
1,270 million
3,540 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
30.4 billion/sec
80.6 billion/sec
Floating-point performance
729.6 gflops
2,038 gflops
Memory bus width
128bit
256 Bit
Memory clock speed
2000 MHz
1800 MHz
Memory bandwidth
64.0 GB/s
115.2 GB/s
Shared memory
-
-
DirectX
12 API
12 API
Shader Model
5.1
5.1
OpenGL
4.5
4.5
OpenCL
1.1
1.1
Vulkan
1.1.126
1.1.126
CUDA
+
+
CUDA cores
384
1344
Bus support
PCI Express 2.0, PCI Express 3.0
PCI Express 3.0
SLI options
+
+
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
Bitcoin / BTC (SHA256)
36 Mh/s
100 Mh/s
Laptop size
large
large
Optimus
+
+
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