GeForce GT 645M vs Quadro P400
In this comparison between GeForce GT 645M and Quadro P400 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 GT 645M will be the best choice, for others Quadro P400 will be their preference. Study the comparison tables below and make your choice.
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
Quadro P400
Power consumption (TDP)
32 Watt
30 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
Memory type
DDR3\GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Display Connectors
No outputs
3x mini-DisplayPort
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GeForce GT 645M has 6% more power consumption, than Quadro P400.
Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
GeForce GT 645M and Quadro P400 have maximum RAM of 2 GB.
GeForce GT 645M is used in Laptops, and Quadro P400 - in Desktops.
GeForce GT 645M is build with Kepler architecture, and Quadro P400 - with Pascal.
GeForce GT 645M is manufactured by 28 nm process technology, and Quadro P400 - by 14 nm process technology.
Memory clock speed of Quadro P400 is 2208 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
7−8
ultra / 1080p
0−1
4−5
QHD / 1440p
0−1
0−1
low / 720p
12−14
18−20
medium / 1080p
2−3
9−10
The average gaming FPS of Quadro P400 in Assassin's Creed Odyssey is 140% more, than GeForce GT 645M.
high / 1080p
−
12−14
ultra / 1080p
3−4
10−12
QHD / 1440p
0−1
0−1
low / 720p
12−14
27−30
medium / 1080p
4−5
14−16
The average gaming FPS of Quadro P400 in Battlefield 5 is 157% more, than GeForce GT 645M.
low / 768p
50−55
45−50
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GT 645M in Call of Duty: Warzone is 6% more, than Quadro P400.
low / 768p
110−120
140−150
medium / 768p
85−90
110−120
ultra / 1080p
35−40
55−60
QHD / 1440p
−
30−35
4K / 2160p
10−11
27−30
high / 768p
60−65
85−90
The average gaming FPS of Quadro P400 in Counter-Strike: Global Offensive is 38% more, than GeForce GT 645M.
low / 768p
70−75
55−60
ultra / 1080p
14−16
21−24
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GT 645M in Cyberpunk 2077 is 7% more, than Quadro P400.
low / 768p
70−75
85−90
medium / 768p
45−50
60−65
ultra / 1080p
18−20
35−40
The average gaming FPS of Quadro P400 in Dota 2 is 34% more, than GeForce GT 645M.
high / 1080p
2−3
9−10
ultra / 1080p
2−3
8−9
4K / 2160p
0−1
4−5
low / 720p
10−11
21−24
medium / 1080p
3−4
10−11
The average gaming FPS of Quadro P400 in Far Cry 5 is 200% more, than GeForce GT 645M.
high / 1080p
−
16−18
ultra / 1080p
5−6
10−12
QHD / 1440p
1−2
−
low / 720p
45−50
65−70
medium / 1080p
8−9
24−27
The average gaming FPS of Quadro P400 in Fortnite is 70% more, than GeForce GT 645M.
high / 1080p
3−4
12−14
ultra / 1080p
−
12−14
QHD / 1440p
0−1
2−3
low / 720p
14−16
27−30
medium / 1080p
6−7
14−16
The average gaming FPS of Quadro P400 in Forza Horizon 4 is 125% more, than GeForce GT 645M.
low / 768p
40−45
55−60
medium / 768p
−
45−50
high / 1080p
3−4
14−16
ultra / 1080p
2−3
7−8
QHD / 1440p
0−1
0−1
medium / 720p
35−40
−
The average gaming FPS of Quadro P400 in Grand Theft Auto V is 62% more, than GeForce GT 645M.
high / 1080p
1−2
5−6
ultra / 1080p
0−1
3−4
4K / 2160p
0−1
0−1
low / 720p
3−4
14−16
medium / 1080p
2−3
7−8
The average gaming FPS of Quadro P400 in Metro Exodus is 350% more, than GeForce GT 645M.
low / 768p
85−90
95−100
high / 1080p
55−60
90−95
ultra / 1080p
−
80−85
medium / 1080p
−
95−100
The average gaming FPS of Quadro P400 in Minecraft is 31% more, than GeForce GT 645M.
high / 1080p
14−16
16−18
ultra / 1080p
12−14
14−16
low / 720p
24−27
35−40
medium / 1080p
14−16
18−20
The average gaming FPS of Quadro P400 in PLAYERUNKNOWN'S BATTLEGROUNDS is 29% more, than GeForce GT 645M.
ultra / 1080p
3−4
8−9
QHD / 1440p
0−1
0−1
low / 720p
4−5
14−16
medium / 1080p
−
10−12
The average gaming FPS of Quadro P400 in Red Dead Redemption 2 is 175% more, than GeForce GT 645M.
low / 768p
8−9
27−30
medium / 768p
7−8
18−20
high / 1080p
3−4
10−11
ultra / 1080p
3−4
7−8
4K / 2160p
0−1
6−7
The average gaming FPS of Quadro P400 in The Witcher 3: Wild Hunt is 220% more, than GeForce GT 645M.
low / 768p
70−75
85−90
medium / 768p
35−40
45−50
ultra / 1080p
12−14
21−24
high / 768p
30−33
35−40
The average gaming FPS of Quadro P400 in World of Tanks is 26% more, than GeForce GT 645M.
Full Specs
GeForce GT 645M
Quadro P400
Architecture
Kepler
Pascal
Code name
N13P-GS
GP107
Type
Laptop
Workstation
Release date
22 March 2012
7 February 2017
Pipelines
384
256
Core clock speed
1228 MHz
Boost Clock
1252 MHz
Transistor count
1,270 million
3,300 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
22.7 billion/sec
20.03
Floating-point performance
544.5 gflops
679.9 gflops
Length
145 mm
Memory bus width
128bit
64 Bit
Memory clock speed
1800 MHz
4008 MHz
Memory bandwidth
32.06 GB/s
Shared memory
-
DirectX
12 API
12 (12_1)
Shader Model
5.1
6.4
OpenGL
4.5
4.6
OpenCL
1.1
1.2
Vulkan
1.1.126
1.2.131
CUDA
+
6.1
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
Optimus
+
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