GeForce 920M vs GeForce GT 645M
In this comparison between GeForce 920M and GeForce GT 645M 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 920M will be the best choice, for others GeForce GT 645M will be their preference. Study the comparison tables below and make your choice.
GeForce 920M and GeForce GT 645M are Laptop Graphics Cards
Note: GeForce 920M and GeForce GT 645M 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 920M or GeForce GT 645M here:
Main Specs
GeForce 920M
GeForce GT 645M
Power consumption (TDP)
33 Watt
32 Watt
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Memory type
DDR3
DDR3\GDDR5
Maximum RAM amount
4 GB
2 GB
Display Connectors
No outputs
No outputs
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GeForce 920M has 3% more power consumption, than GeForce GT 645M.
GeForce 920M is connected by PCIe 3.0 x8, and GeForce GT 645M uses PCIe 3.0 x16 interface.
GeForce 920M has 2 GB more memory, than GeForce GT 645M.
Both cards are used in Laptops.
GeForce 920M and GeForce GT 645M are build with Kepler architecture.
GeForce 920M and GeForce GT 645M are manufactured by 28 nm process technology.
Memory clock speed of GeForce 920M and GeForce GT 645M is 1800 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
0−1
1−2
ultra / 1080p
−
0−1
QHD / 1440p
0−1
0−1
low / 720p
1−2
12−14
medium / 1080p
0−1
2−3
The average gaming FPS of GeForce GT 645M in Assassin's Creed Odyssey is 1200% more, than GeForce 920M.
ultra / 1080p
−
3−4
QHD / 1440p
0−1
0−1
low / 720p
0−1
12−14
medium / 1080p
−
4−5
low / 768p
50−55
50−55
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
GeForce 920M and GeForce GT 645M have the same average FPS in Call of Duty: Warzone.
low / 768p
60−65
110−120
medium / 768p
27−30
85−90
ultra / 1080p
7−8
35−40
4K / 2160p
−
10−11
high / 768p
16−18
60−65
The average gaming FPS of GeForce GT 645M in Counter-Strike: Global Offensive is 167% more, than GeForce 920M.
low / 768p
70−75
70−75
ultra / 1080p
0−1
14−16
medium / 1080p
45−50
45−50
GeForce 920M and GeForce GT 645M have the same average FPS in Cyberpunk 2077.
low / 768p
45−50
70−75
medium / 768p
10−11
45−50
ultra / 1080p
0−1
18−20
The average gaming FPS of GeForce GT 645M in Dota 2 is 106% more, than GeForce 920M.
high / 1080p
−
2−3
ultra / 1080p
−
2−3
4K / 2160p
−
0−1
low / 720p
0−1
10−11
medium / 1080p
−
3−4
ultra / 1080p
−
5−6
QHD / 1440p
−
1−2
low / 720p
21−24
45−50
medium / 1080p
0−1
8−9
The average gaming FPS of GeForce GT 645M in Fortnite is 113% more, than GeForce 920M.
high / 1080p
0−1
3−4
QHD / 1440p
0−1
0−1
low / 720p
0−1
14−16
medium / 1080p
0−1
6−7
low / 768p
18−20
40−45
high / 1080p
0−1
3−4
ultra / 1080p
−
2−3
QHD / 1440p
0−1
0−1
medium / 720p
12−14
35−40
The average gaming FPS of GeForce GT 645M in Grand Theft Auto V is 150% more, than GeForce 920M.
high / 1080p
−
1−2
ultra / 1080p
−
0−1
4K / 2160p
−
0−1
low / 720p
0−1
3−4
medium / 1080p
−
2−3
low / 768p
75−80
85−90
high / 1080p
27−30
55−60
The average gaming FPS of GeForce GT 645M in Minecraft is 35% more, than GeForce 920M.
high / 1080p
−
14−16
ultra / 1080p
−
12−14
low / 720p
8−9
24−27
medium / 1080p
−
14−16
The average gaming FPS of GeForce GT 645M in PLAYERUNKNOWN'S BATTLEGROUNDS is 212% more, than GeForce 920M.
ultra / 1080p
−
3−4
QHD / 1440p
−
0−1
low / 720p
0−1
4−5
low / 768p
0−1
8−9
medium / 768p
−
7−8
high / 1080p
−
3−4
ultra / 1080p
−
3−4
4K / 2160p
−
0−1
low / 768p
45−50
70−75
medium / 768p
14−16
35−40
ultra / 1080p
0−1
12−14
high / 768p
12−14
30−33
The average gaming FPS of GeForce GT 645M in World of Tanks is 88% more, than GeForce 920M.
Full Specs
GeForce 920M
GeForce GT 645M
Architecture
Kepler
Kepler
Code name
N16V-GM-S
N13P-GS
Type
Laptop
Laptop
Release date
27 January 2015
22 March 2012
Pipelines
384
384
Core clock speed
954 MHz
Transistor count
915 million
1,270 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
30.53
22.7 billion/sec
Floating-point performance
297.6 gflops
544.5 gflops
Memory bus width
64 Bit
128bit
Memory clock speed
1800 MHz
1800 MHz
Memory bandwidth
14.4 GB/s
Shared memory
-
-
DirectX
12 (11_0)
12 API
Shader Model
5.1
5.1
OpenGL
4.5
4.5
OpenCL
1.2
1.1
Vulkan
1.1.126
1.1.126
CUDA
+
+
CUDA cores
384
Bus support
PCI Express 3.0
PCI Express 2.0, PCI Express 3.0
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
3D Blu-Ray
+
Bitcoin / BTC (SHA256)
40 Mh/s
19 Mh/s
Laptop size
medium sized
Optimus
+
+
GPU Boost
2.0
GameWorks
+
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