GeForce 825M vs GeForce GT 645M
When choosing between GeForce 825M and GeForce GT 645M, 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 825M and GeForce GT 645M.
GeForce 825M and GeForce GT 645M are Laptop Graphics Cards
Note: GeForce 825M 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 825M or GeForce GT 645M here:
Main Specs
GeForce 825M
GeForce GT 645M
Power consumption (TDP)
33 Watt
32 Watt
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Supplementary power connectors
None
Memory type
DDR3
DDR3\GDDR5
Maximum RAM amount
2 GB
2 GB
Display Connectors
No outputs
No outputs
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GeForce 825M has 3% more power consumption, than GeForce GT 645M.
GeForce 825M is connected by PCIe 3.0 x8, and GeForce GT 645M uses PCIe 3.0 x16 interface.
GeForce 825M and GeForce GT 645M have maximum RAM of 2 GB.
Both cards are used in Laptops.
GeForce 825M and GeForce GT 645M are build with Kepler architecture.
GeForce 825M and GeForce GT 645M are manufactured by 28 nm process technology.
Memory clock speed of GeForce 825M 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
2−3
12−14
medium / 1080p
0−1
2−3
The average gaming FPS of GeForce GT 645M in Assassin's Creed Odyssey is 550% more, than GeForce 825M.
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
35−40
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GT 645M in Call of Duty: Warzone is 11% more, than GeForce 825M.
low / 768p
55−60
110−120
medium / 768p
30−33
85−90
ultra / 1080p
6−7
35−40
4K / 2160p
−
10−11
high / 768p
18−20
60−65
The average gaming FPS of GeForce GT 645M in Counter-Strike: Global Offensive is 167% more, than GeForce 825M.
low / 768p
65−70
70−75
ultra / 1080p
5−6
14−16
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GT 645M in Cyberpunk 2077 is 12% more, than GeForce 825M.
low / 768p
55−60
70−75
medium / 768p
14−16
45−50
ultra / 1080p
0−1
18−20
The average gaming FPS of GeForce GT 645M in Dota 2 is 66% more, than GeForce 825M.
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 825M.
high / 1080p
0−1
3−4
QHD / 1440p
−
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 825M.
high / 1080p
−
1−2
ultra / 1080p
−
0−1
4K / 2160p
−
0−1
low / 720p
0−1
3−4
medium / 1080p
−
2−3
low / 768p
80−85
85−90
high / 1080p
60−65
55−60
ultra / 1080p
50−55
−
medium / 1080p
75−80
−
GeForce 825M and GeForce GT 645M have the same average FPS in Minecraft.
high / 1080p
−
14−16
ultra / 1080p
−
12−14
low / 720p
10−11
24−27
medium / 1080p
10−11
14−16
The average gaming FPS of GeForce GT 645M in PLAYERUNKNOWN'S BATTLEGROUNDS is 100% more, than GeForce 825M.
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
16−18
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 825M.
Full Specs
GeForce 825M
GeForce GT 645M
Architecture
Kepler
Kepler
Code name
GK208
N13P-GS
Type
Laptop
Laptop
Release date
27 January 2014
22 March 2012
Pipelines
384
384
Core clock speed
850 MHz
Boost Clock
941 MHz
Transistor count
915 million
1,270 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
30.11
22.7 billion/sec
Floating-point performance
722.7 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
4.6
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
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
3D Blu-Ray
+
Bitcoin / BTC (SHA256)
19 Mh/s
Laptop size
medium sized
medium sized
Optimus
+
+
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