GeForce GT 645M vs GeForce GTX 980M
When choosing between GeForce GT 645M and GeForce GTX 980M, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GT 645M and GeForce GTX 980M.
GeForce GT 645M and GeForce GTX 980M are Laptop Graphics Cards
Note: GeForce GT 645M and GeForce GTX 980M 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 GT 645M or GeForce GTX 980M here:
Main Specs
GeForce GT 645M
GeForce GTX 980M
Power consumption (TDP)
32 Watt
Interface
PCIe 3.0 x16
MXM-B (3.0)
Supplementary power connectors
None
Memory type
DDR3\GDDR5
GDDR5
Maximum RAM amount
2 GB
8 GB
Display Connectors
No outputs
No outputs
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GeForce GT 645M is connected by PCIe 3.0 x16, and GeForce GTX 980M uses MXM-B (3.0) interface.
GeForce GTX 980M has 6 GB more memory, than GeForce GT 645M.
Both cards are used in Laptops.
GeForce GT 645M is build with Kepler architecture, and GeForce GTX 980M - with Maxwell.
GeForce GT 645M and GeForce GTX 980M are manufactured by 28 nm process technology.
Memory clock speed of GeForce GTX 980M is 700 MHz higher, than GeForce GT 645M.
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
1−2
35−40
ultra / 1080p
0−1
24−27
QHD / 1440p
0−1
18−20
4K / 2160p
−
10−11
low / 720p
12−14
60−65
medium / 1080p
2−3
45−50
The average gaming FPS of GeForce GTX 980M in Assassin's Creed Odyssey is 880% more, than GeForce GT 645M.
high / 1080p
−
55−60
ultra / 1080p
3−4
50−55
QHD / 1440p
0−1
35−40
4K / 2160p
−
18−20
low / 720p
12−14
110−120
medium / 1080p
4−5
65−70
The average gaming FPS of GeForce GTX 980M in Battlefield 5 is 1014% more, than GeForce GT 645M.
low / 768p
50−55
50−55
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
GeForce GT 645M and GeForce GTX 980M have the same average FPS in Call of Duty: Warzone.
low / 768p
110−120
250−260
medium / 768p
85−90
220−230
ultra / 1080p
35−40
180−190
QHD / 1440p
−
110−120
4K / 2160p
10−11
70−75
high / 768p
60−65
210−220
The average gaming FPS of GeForce GTX 980M in Counter-Strike: Global Offensive is 206% more, than GeForce GT 645M.
low / 768p
70−75
60−65
ultra / 1080p
14−16
−
medium / 1080p
45−50
55−60
GeForce GT 645M and GeForce GTX 980M have the same average FPS in Cyberpunk 2077.
low / 768p
70−75
120−130
medium / 768p
45−50
110−120
ultra / 1080p
18−20
100−110
The average gaming FPS of GeForce GTX 980M in Dota 2 is 150% more, than GeForce GT 645M.
high / 1080p
2−3
45−50
ultra / 1080p
2−3
45−50
QHD / 1440p
−
30−35
4K / 2160p
0−1
16−18
low / 720p
10−11
85−90
medium / 1080p
3−4
50−55
The average gaming FPS of GeForce GTX 980M in Far Cry 5 is 1350% more, than GeForce GT 645M.
high / 1080p
−
65−70
ultra / 1080p
5−6
50−55
QHD / 1440p
1−2
30−33
4K / 2160p
−
27−30
low / 720p
45−50
180−190
medium / 1080p
8−9
120−130
The average gaming FPS of GeForce GTX 980M in Fortnite is 553% more, than GeForce GT 645M.
high / 1080p
3−4
60−65
ultra / 1080p
−
45−50
QHD / 1440p
0−1
35−40
4K / 2160p
−
24−27
low / 720p
14−16
110−120
medium / 1080p
6−7
70−75
The average gaming FPS of GeForce GTX 980M in Forza Horizon 4 is 937% more, than GeForce GT 645M.
low / 768p
40−45
140−150
medium / 768p
−
130−140
high / 1080p
3−4
75−80
ultra / 1080p
2−3
30−35
QHD / 1440p
0−1
24−27
medium / 720p
35−40
−
The average gaming FPS of GeForce GTX 980M in Grand Theft Auto V is 431% more, than GeForce GT 645M.
high / 1080p
1−2
27−30
ultra / 1080p
0−1
21−24
QHD / 1440p
−
18−20
4K / 2160p
0−1
9−10
low / 720p
3−4
70−75
medium / 1080p
2−3
35−40
The average gaming FPS of GeForce GTX 980M in Metro Exodus is 2200% more, than GeForce GT 645M.
low / 768p
85−90
130−140
high / 1080p
55−60
−
medium / 1080p
−
120−130
The average gaming FPS of GeForce GTX 980M in Minecraft is 55% more, than GeForce GT 645M.
high / 1080p
14−16
−
ultra / 1080p
12−14
14−16
low / 720p
24−27
100−110
medium / 1080p
14−16
18−20
The average gaming FPS of GeForce GTX 980M in PLAYERUNKNOWN'S BATTLEGROUNDS is 170% more, than GeForce GT 645M.
high / 1080p
−
27−30
ultra / 1080p
3−4
16−18
QHD / 1440p
0−1
12−14
4K / 2160p
−
8−9
low / 720p
4−5
70−75
medium / 1080p
−
35−40
The average gaming FPS of GeForce GTX 980M in Red Dead Redemption 2 is 1000% more, than GeForce GT 645M.
low / 768p
8−9
140−150
medium / 768p
7−8
90−95
high / 1080p
3−4
50−55
ultra / 1080p
3−4
27−30
4K / 2160p
0−1
16−18
The average gaming FPS of GeForce GTX 980M in The Witcher 3: Wild Hunt is 1480% more, than GeForce GT 645M.
low / 768p
70−75
90−95
medium / 768p
35−40
60−65
ultra / 1080p
12−14
55−60
high / 768p
30−33
−
The average gaming FPS of GeForce GTX 980M in World of Tanks is 70% more, than GeForce GT 645M.
Full Specs
GeForce GT 645M
GeForce GTX 980M
Architecture
Kepler
Maxwell
Code name
N13P-GS
GM204
Type
Laptop
Laptop
Release date
22 March 2012
7 October 2014
Pipelines
384
1536
Core clock speed
1038 MHz
Boost Clock
1127 MHz
Transistor count
1,270 million
5,200 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
22.7 billion/sec
51.84
Floating-point performance
544.5 gflops
3,462 gflops
Memory bus width
128bit
256 Bit
Memory clock speed
1800 MHz
2500 MHz
Memory bandwidth
160 GB/s
Shared memory
-
-
G-SYNC support
+
DirectX
12 API
12 (12_1)
Shader Model
5.1
6.4
OpenGL
4.5
4.5
OpenCL
1.1
1.1
Vulkan
1.1.126
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 Blu-Ray
+
Bitcoin / BTC (SHA256)
19 Mh/s
383 Mh/s
Laptop size
medium sized
large
DisplayPort Multimode (DP++) support
+
H.264, VC1, MPEG2 1080p video decoder
+
Optimus
+
+
GameStream
+
GeForce ShadowPlay
+
GPU Boost
2.0
GameWorks
+
BatteryBoost
+
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