GeForce 845M vs GeForce GTX 660M
In this comparison between GeForce 845M and GeForce GTX 660M you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce 845M will be the best choice, for others GeForce GTX 660M will be their preference. Study the comparison tables below and make your choice.
GeForce 845M and GeForce GTX 660M are Laptop Graphics Cards
Note: GeForce 845M and GeForce GTX 660M 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 845M or GeForce GTX 660M here:
Main Specs
GeForce 845M
GeForce GTX 660M
Power consumption (TDP)
45 Watt
50 Watt
Interface
PCIe 3.0 x8
MXM-B (3.0)
Memory type
DDR3, GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Display Connectors
No outputs
No outputs
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GeForce GTX 660M has 11% more power consumption, than GeForce 845M.
GeForce 845M is connected by PCIe 3.0 x8, and GeForce GTX 660M uses MXM-B (3.0) interface.
GeForce 845M and GeForce GTX 660M have maximum RAM of 2 GB.
Both cards are used in Laptops.
GeForce 845M is build with Maxwell architecture, and GeForce GTX 660M - with Kepler.
Core clock speed of GeForce 845M is 236 MHz higher, than GeForce GTX 660M.
GeForce 845M and GeForce GTX 660M are manufactured by 28 nm process technology.
Memory clock speed of GeForce 845M and GeForce GTX 660M is 2000 MHz.
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
3−4
6−7
ultra / 1080p
1−2
4−5
QHD / 1440p
0−1
0−1
low / 720p
14−16
16−18
medium / 1080p
6−7
8−9
The average gaming FPS of GeForce GTX 660M in Assassin's Creed Odyssey is 50% more, than GeForce 845M.
high / 1080p
10−11
12−14
ultra / 1080p
7−8
10−11
QHD / 1440p
0−1
0−1
low / 720p
21−24
24−27
medium / 1080p
10−11
12−14
The average gaming FPS of GeForce GTX 660M in Battlefield 5 is 25% more, than GeForce 845M.
low / 768p
45−50
45−50
high / 1080p
40−45
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GTX 660M in Call of Duty: Warzone is 4% more, than GeForce 845M.
low / 768p
130−140
130−140
medium / 768p
100−110
110−120
ultra / 1080p
50−55
50−55
QHD / 1440p
24−27
27−30
4K / 2160p
12−14
27−30
high / 768p
75−80
80−85
The average gaming FPS of GeForce GTX 660M in Counter-Strike: Global Offensive is 7% more, than GeForce 845M.
low / 768p
85−90
55−60
ultra / 1080p
21−24
18−20
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce 845M in Cyberpunk 2077 is 26% more, than GeForce GTX 660M.
low / 768p
75−80
80−85
medium / 768p
50−55
55−60
ultra / 1080p
30−33
30−35
The average gaming FPS of GeForce GTX 660M in Dota 2 is 7% more, than GeForce 845M.
high / 1080p
4−5
8−9
ultra / 1080p
4−5
7−8
4K / 2160p
2−3
3−4
low / 720p
14−16
18−20
medium / 1080p
6−7
8−9
The average gaming FPS of GeForce GTX 660M in Far Cry 5 is 50% more, than GeForce 845M.
high / 1080p
6−7
14−16
ultra / 1080p
0−1
10−11
QHD / 1440p
0−1
−
low / 720p
55−60
60−65
medium / 1080p
16−18
21−24
The average gaming FPS of GeForce GTX 660M in Fortnite is 22% more, than GeForce 845M.
high / 1080p
9−10
12−14
ultra / 1080p
8−9
10−12
QHD / 1440p
3−4
1−2
4K / 2160p
3−4
−
low / 720p
21−24
24−27
medium / 1080p
10−12
14−16
The average gaming FPS of GeForce GTX 660M in Forza Horizon 4 is 18% more, than GeForce 845M.
low / 768p
50−55
50−55
medium / 768p
−
45−50
high / 1080p
10−11
12−14
ultra / 1080p
4−5
6−7
QHD / 1440p
−
0−1
medium / 720p
40−45
−
The average gaming FPS of GeForce GTX 660M in Grand Theft Auto V is 9% more, than GeForce 845M.
high / 1080p
3−4
4−5
ultra / 1080p
1−2
3−4
4K / 2160p
−
0−1
low / 720p
10−11
12−14
medium / 1080p
4−5
6−7
The average gaming FPS of GeForce GTX 660M in Metro Exodus is 20% more, than GeForce 845M.
low / 768p
90−95
95−100
high / 1080p
65−70
90−95
ultra / 1080p
−
80−85
medium / 1080p
90−95
90−95
The average gaming FPS of GeForce GTX 660M in Minecraft is 11% more, than GeForce 845M.
high / 1080p
5−6
16−18
ultra / 1080p
1−2
14−16
4K / 2160p
0−1
−
low / 720p
27−30
30−35
medium / 1080p
9−10
18−20
The average gaming FPS of GeForce GTX 660M in PLAYERUNKNOWN'S BATTLEGROUNDS is 81% more, than GeForce 845M.
ultra / 1080p
−
7−8
QHD / 1440p
−
0−1
low / 720p
10−11
12−14
medium / 1080p
8−9
10−12
The average gaming FPS of GeForce GTX 660M in Red Dead Redemption 2 is 33% more, than GeForce 845M.
low / 768p
20−22
24−27
medium / 768p
12−14
16−18
high / 1080p
6−7
9−10
ultra / 1080p
4−5
6−7
4K / 2160p
3−4
6−7
The average gaming FPS of GeForce GTX 660M in The Witcher 3: Wild Hunt is 44% more, than GeForce 845M.
low / 768p
75−80
85−90
medium / 768p
40−45
45−50
ultra / 1080p
16−18
18−20
high / 768p
30−35
35−40
The average gaming FPS of GeForce GTX 660M in World of Tanks is 11% more, than GeForce 845M.
Full Specs
GeForce 845M
GeForce GTX 660M
Architecture
Maxwell
Kepler
Code name
GM108
N13E-GE
Type
Laptop
Laptop
Release date
12 March 2014
22 March 2012
Pipelines
384
384
Core clock speed
1071 MHz
835 MHz
Boost Clock
1150 MHz
950 MHz
Transistor count
1,870 million
1,270 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
37.63
30.4 billion/sec
Floating-point performance
883.7 gflops
729.6 gflops
Memory bus width
64/128 Bit
128bit
Memory clock speed
2000 - 5000 MHz
2000 MHz
Memory bandwidth
40.1 GB/s
64.0 GB/s
Shared memory
-
-
DirectX
12 (11_0)
12 API
Shader Model
5.1
5.1
OpenGL
4.6
4.5
OpenCL
1.2
1.1
Vulkan
1.1.126
1.1.126
CUDA
+
+
CUDA cores
384
Bus support
PCI Express 2.0, PCI Express 3.0
SLI options
+
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
Bitcoin / BTC (SHA256)
76 Mh/s
36 Mh/s
Laptop size
medium sized
large
Optimus
+
+
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