GeForce GTX 660M vs GeForce GTX 670MX
If you are going to buy a new graphics card and are choosing between GeForce GTX 660M and GeForce GTX 670MX, 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 670MX, check out specs charts below.
GeForce GTX 660M and GeForce GTX 670MX are Laptop Graphics Cards
Note: GeForce GTX 660M and GeForce GTX 670MX 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 670MX here:
Main Specs
GeForce GTX 660M
GeForce GTX 670MX
Power consumption (TDP)
50 Watt
75 Watt
Interface
MXM-B (3.0)
PCIe 3.0 x16
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
3 GB
Display Connectors
No outputs
No outputs
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GeForce GTX 670MX has 50% more power consumption, than GeForce GTX 660M.
GeForce GTX 660M is connected by MXM-B (3.0), and GeForce GTX 670MX uses PCIe 3.0 x16 interface.
GeForce GTX 670MX has 1 GB more memory, than GeForce GTX 660M.
Both cards are used in Laptops.
GeForce GTX 660M and GeForce GTX 670MX are build with Kepler architecture.
Core clock speed of GeForce GTX 660M is 235 MHz higher, than GeForce GTX 670MX.
GeForce GTX 660M and GeForce GTX 670MX are manufactured by 28 nm process technology.
Memory clock speed of GeForce GTX 660M is 600 MHz higher, than GeForce GTX 670MX.
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
8−9
ultra / 1080p
4−5
5−6
QHD / 1440p
0−1
0−1
low / 720p
16−18
20−22
medium / 1080p
8−9
10−12
The average gaming FPS of GeForce GTX 670MX in Assassin's Creed Odyssey is 22% more, than GeForce GTX 660M.
high / 1080p
12−14
14−16
ultra / 1080p
10−11
12−14
QHD / 1440p
0−1
0−1
low / 720p
24−27
30−35
medium / 1080p
12−14
16−18
The average gaming FPS of GeForce GTX 670MX in Battlefield 5 is 26% more, than GeForce GTX 660M.
low / 768p
45−50
45−50
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
GeForce GTX 660M and GeForce GTX 670MX have the same average FPS in Call of Duty: Warzone.
low / 768p
130−140
150−160
medium / 768p
110−120
130−140
ultra / 1080p
50−55
65−70
QHD / 1440p
27−30
35−40
4K / 2160p
27−30
27−30
high / 768p
80−85
95−100
The average gaming FPS of GeForce GTX 670MX in Counter-Strike: Global Offensive is 17% more, than GeForce GTX 660M.
low / 768p
55−60
55−60
ultra / 1080p
18−20
24−27
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GTX 670MX in Cyberpunk 2077 is 4% more, than GeForce GTX 660M.
low / 768p
80−85
85−90
medium / 768p
55−60
65−70
ultra / 1080p
30−35
40−45
The average gaming FPS of GeForce GTX 670MX in Dota 2 is 14% more, than GeForce GTX 660M.
high / 1080p
8−9
10−11
ultra / 1080p
7−8
9−10
4K / 2160p
3−4
4−5
low / 720p
18−20
24−27
medium / 1080p
8−9
10−12
The average gaming FPS of GeForce GTX 670MX in Far Cry 5 is 33% more, than GeForce GTX 660M.
high / 1080p
14−16
16−18
ultra / 1080p
10−11
12−14
low / 720p
60−65
70−75
medium / 1080p
21−24
30−33
The average gaming FPS of GeForce GTX 670MX in Fortnite is 22% more, than GeForce GTX 660M.
high / 1080p
12−14
14−16
ultra / 1080p
10−12
12−14
QHD / 1440p
1−2
3−4
low / 720p
24−27
30−35
medium / 1080p
14−16
16−18
The average gaming FPS of GeForce GTX 670MX in Forza Horizon 4 is 23% more, than GeForce GTX 660M.
low / 768p
50−55
60−65
medium / 768p
45−50
50−55
high / 1080p
12−14
16−18
ultra / 1080p
6−7
8−9
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GTX 670MX in Grand Theft Auto V is 20% more, than GeForce GTX 660M.
high / 1080p
4−5
6−7
ultra / 1080p
3−4
4−5
4K / 2160p
0−1
1−2
low / 720p
12−14
16−18
medium / 1080p
6−7
8−9
The average gaming FPS of GeForce GTX 670MX in Metro Exodus is 50% more, than GeForce GTX 660M.
low / 768p
95−100
95−100
high / 1080p
90−95
95−100
ultra / 1080p
80−85
85−90
medium / 1080p
90−95
95−100
The average gaming FPS of GeForce GTX 670MX in Minecraft is 4% more, than GeForce GTX 660M.
high / 1080p
16−18
18−20
ultra / 1080p
14−16
14−16
low / 720p
30−35
35−40
medium / 1080p
18−20
18−20
The average gaming FPS of GeForce GTX 670MX in PLAYERUNKNOWN'S BATTLEGROUNDS is 10% more, than GeForce GTX 660M.
high / 1080p
−
12−14
ultra / 1080p
7−8
8−9
QHD / 1440p
0−1
0−1
low / 720p
12−14
16−18
medium / 1080p
10−12
12−14
The average gaming FPS of GeForce GTX 670MX in Red Dead Redemption 2 is 20% more, than GeForce GTX 660M.
low / 768p
24−27
30−35
medium / 768p
16−18
21−24
high / 1080p
9−10
10−12
ultra / 1080p
6−7
7−8
4K / 2160p
6−7
6−7
The average gaming FPS of GeForce GTX 670MX in The Witcher 3: Wild Hunt is 23% more, than GeForce GTX 660M.
low / 768p
85−90
90−95
medium / 768p
45−50
50−55
ultra / 1080p
18−20
24−27
high / 768p
35−40
40−45
The average gaming FPS of GeForce GTX 670MX in World of Tanks is 12% more, than GeForce GTX 660M.
Full Specs
GeForce GTX 660M
GeForce GTX 670MX
Architecture
Kepler
Kepler
Code name
N13E-GE
N13E-GR
Type
Laptop
Laptop
Release date
22 March 2012
1 October 2012
Pipelines
384
960
Core clock speed
835 MHz
600 MHz
Boost Clock
950 MHz
Transistor count
1,270 million
3,540 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
30.4 billion/sec
48.0 billion/sec
Floating-point performance
729.6 gflops
1,154 gflops
Memory bus width
128bit
192 Bit
Memory clock speed
2000 MHz
1400 MHz
Memory bandwidth
64.0 GB/s
67.2 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
960
Bus support
PCI Express 2.0, PCI Express 3.0
PCI Express 2.0
SLI options
+
+
HDMI
+
+
HDCP
+
+
Maximum VGA resolution
Up to 2048x1536
Up to 2048x1536
Bitcoin / BTC (SHA256)
36 Mh/s
Laptop size
large
large
Optimus
+
+
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