GeForce GT 645M vs GeForce GTS 450
When choosing between GeForce GT 645M and GeForce GTS 450, 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 GTS 450.
GeForce GT 645M is a Laptop Graphics Card
Note: GeForce GT 645M is only used in laptop graphics. It has 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 here:
Main Specs
GeForce GT 645M
GeForce GTS 450
Power consumption (TDP)
32 Watt
106 Watt
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
6-pin
Memory type
DDR3\GDDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Display Connectors
No outputs
2x DVI, 1x mini-HDMI
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GeForce GTS 450 has 231% more power consumption, than GeForce GT 645M.
GeForce GT 645M is connected by PCIe 3.0 x16, and GeForce GTS 450 uses PCIe 2.0 x16 interface.
GeForce GT 645M has 1 GB more memory, than GeForce GTS 450.
GeForce GT 645M is used in Laptops, and GeForce GTS 450 - in Desktops.
GeForce GT 645M is build with Kepler architecture, and GeForce GTS 450 - with Fermi.
GeForce GT 645M is manufactured by 28 nm process technology, and GeForce GTS 450 - by 40 nm process technology.
Memory clock speed of GeForce GTS 450 is 4 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
3−4
ultra / 1080p
0−1
1−2
QHD / 1440p
0−1
0−1
low / 720p
12−14
14−16
medium / 1080p
2−3
5−6
The average gaming FPS of GeForce GTS 450 in Assassin's Creed Odyssey is 60% more, than GeForce GT 645M.
high / 1080p
−
8−9
ultra / 1080p
3−4
6−7
QHD / 1440p
0−1
0−1
low / 720p
12−14
20−22
medium / 1080p
4−5
8−9
The average gaming FPS of GeForce GTS 450 in Battlefield 5 is 71% more, than GeForce GT 645M.
low / 768p
50−55
45−50
high / 1080p
45−50
40−45
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GT 645M in Call of Duty: Warzone is 11% more, than GeForce GTS 450.
low / 768p
110−120
120−130
medium / 768p
85−90
95−100
ultra / 1080p
35−40
45−50
QHD / 1440p
−
24−27
4K / 2160p
10−11
−
high / 768p
60−65
70−75
The average gaming FPS of GeForce GTS 450 in Counter-Strike: Global Offensive is 13% more, than GeForce GT 645M.
low / 768p
70−75
70−75
ultra / 1080p
14−16
20−22
medium / 1080p
45−50
40−45
GeForce GT 645M and GeForce GTS 450 have the same average FPS in Cyberpunk 2077.
low / 768p
70−75
75−80
medium / 768p
45−50
55−60
ultra / 1080p
18−20
30−33
The average gaming FPS of GeForce GTS 450 in Dota 2 is 19% more, than GeForce GT 645M.
high / 1080p
2−3
4−5
ultra / 1080p
2−3
4−5
4K / 2160p
0−1
1−2
low / 720p
10−11
14−16
medium / 1080p
3−4
5−6
The average gaming FPS of GeForce GTS 450 in Far Cry 5 is 75% more, than GeForce GT 645M.
high / 1080p
−
12−14
ultra / 1080p
5−6
7−8
QHD / 1440p
1−2
4−5
low / 720p
45−50
55−60
medium / 1080p
8−9
16−18
The average gaming FPS of GeForce GTS 450 in Fortnite is 40% more, than GeForce GT 645M.
high / 1080p
3−4
7−8
ultra / 1080p
−
6−7
QHD / 1440p
0−1
0−1
low / 720p
14−16
21−24
medium / 1080p
6−7
9−10
The average gaming FPS of GeForce GTS 450 in Forza Horizon 4 is 62% more, than GeForce GT 645M.
low / 768p
40−45
50−55
high / 1080p
3−4
9−10
ultra / 1080p
2−3
4−5
QHD / 1440p
0−1
0−1
medium / 720p
35−40
40−45
The average gaming FPS of GeForce GTS 450 in Grand Theft Auto V is 28% more, than GeForce GT 645M.
high / 1080p
1−2
2−3
ultra / 1080p
0−1
0−1
4K / 2160p
0−1
0−1
low / 720p
3−4
8−9
medium / 1080p
2−3
4−5
The average gaming FPS of GeForce GTS 450 in Metro Exodus is 150% more, than GeForce GT 645M.
low / 768p
85−90
85−90
high / 1080p
55−60
65−70
The average gaming FPS of GeForce GTS 450 in Minecraft is 6% more, than GeForce GT 645M.
high / 1080p
14−16
−
ultra / 1080p
12−14
12−14
low / 720p
24−27
27−30
medium / 1080p
14−16
14−16
The average gaming FPS of GeForce GTS 450 in PLAYERUNKNOWN'S BATTLEGROUNDS is 5% more, than GeForce GT 645M.
high / 1080p
−
6−7
ultra / 1080p
3−4
4−5
QHD / 1440p
0−1
0−1
low / 720p
4−5
8−9
medium / 1080p
−
8−9
The average gaming FPS of GeForce GTS 450 in Red Dead Redemption 2 is 50% more, than GeForce GT 645M.
low / 768p
8−9
18−20
medium / 768p
7−8
12−14
high / 1080p
3−4
6−7
ultra / 1080p
3−4
4−5
4K / 2160p
0−1
1−2
The average gaming FPS of GeForce GTS 450 in The Witcher 3: Wild Hunt is 100% more, than GeForce GT 645M.
low / 768p
70−75
70−75
medium / 768p
35−40
35−40
ultra / 1080p
12−14
16−18
high / 768p
30−33
30−35
The average gaming FPS of GeForce GTS 450 in World of Tanks is 2% more, than GeForce GT 645M.
Full Specs
GeForce GT 645M
GeForce GTS 450
Architecture
Kepler
Fermi
Code name
N13P-GS
GF106
Type
Laptop
Desktop
Release date
22 March 2012
13 September 2010
Pipelines
384
192
Core clock speed
1566 MHz
Transistor count
1,270 million
1,170 million
Manufacturing process technology
28 nm
40 nm
Texture fill rate
22.7 billion/sec
25.1 billion/sec
Floating-point performance
544.5 gflops
601.3 gflops
Length
8.25" (210 mm) (21 cm)
Memory bus width
128bit
128 Bit
Memory clock speed
1800 MHz
1804 (3608 data rate) MHz
Memory bandwidth
57.7 GB/s
Shared memory
-
DirectX
12 API
12 (11_0)
Shader Model
5.1
5.1
OpenGL
4.5
4.2
OpenCL
1.1
1.1
Vulkan
1.1.126
N/A
CUDA
+
+
CUDA cores
384
192
Bus support
PCI Express 2.0, PCI Express 3.0
PCI-E 2.0 x 16
Height
4.376" (111 mm) (11.1 cm)
SLI options
+
HDMI
+
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
2048x1536
Audio input for HDMI
Internal
3D Blu-Ray
+
Bitcoin / BTC (SHA256)
19 Mh/s
40 Mh/s
Laptop size
medium sized
Optimus
+
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