GeForce GT 645M vs Quadro K3100M
If you are going to buy a new graphics card and are choosing between GeForce GT 645M and Quadro K3100M, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GT 645M stacks up against Quadro K3100M, check out specs charts below.
GeForce GT 645M and Quadro K3100M are Laptop Graphics Cards
Note: GeForce GT 645M and Quadro K3100M 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 Quadro K3100M here:
Main Specs
GeForce GT 645M
Quadro K3100M
Power consumption (TDP)
32 Watt
75 Watt
Interface
PCIe 3.0 x16
MXM-B (3.0)
Memory type
DDR3\GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Display Connectors
No outputs
No outputs
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Quadro K3100M has 134% more power consumption, than GeForce GT 645M.
GeForce GT 645M is connected by PCIe 3.0 x16, and Quadro K3100M uses MXM-B (3.0) interface.
Quadro K3100M has 2 GB more memory, than GeForce GT 645M.
GeForce GT 645M is used in Laptops, and Quadro K3100M - in Mobile workstations.
GeForce GT 645M and Quadro K3100M are build with Kepler architecture.
GeForce GT 645M and Quadro K3100M are manufactured by 28 nm process technology.
Memory clock speed of Quadro K3100M is 1400 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
10−12
ultra / 1080p
0−1
7−8
QHD / 1440p
0−1
1−2
low / 720p
12−14
24−27
medium / 1080p
2−3
14−16
The average gaming FPS of Quadro K3100M in Assassin's Creed Odyssey is 240% more, than GeForce GT 645M.
high / 1080p
−
18−20
ultra / 1080p
3−4
16−18
QHD / 1440p
0−1
2−3
low / 720p
12−14
40−45
medium / 1080p
4−5
20−22
The average gaming FPS of Quadro K3100M in Battlefield 5 is 271% more, than GeForce GT 645M.
low / 768p
50−55
45−50
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GT 645M in Call of Duty: Warzone is 10% more, than Quadro K3100M.
low / 768p
110−120
180−190
medium / 768p
85−90
150−160
ultra / 1080p
35−40
80−85
QHD / 1440p
−
45−50
4K / 2160p
10−11
30−33
high / 768p
60−65
110−120
The average gaming FPS of Quadro K3100M in Counter-Strike: Global Offensive is 82% more, than GeForce GT 645M.
low / 768p
70−75
55−60
ultra / 1080p
14−16
30−35
medium / 1080p
45−50
45−50
GeForce GT 645M and Quadro K3100M have the same average FPS in Cyberpunk 2077.
low / 768p
70−75
100−105
medium / 768p
45−50
80−85
ultra / 1080p
18−20
50−55
The average gaming FPS of Quadro K3100M in Dota 2 is 71% more, than GeForce GT 645M.
high / 1080p
2−3
12−14
ultra / 1080p
2−3
12−14
4K / 2160p
0−1
5−6
low / 720p
10−11
30−35
medium / 1080p
3−4
14−16
The average gaming FPS of Quadro K3100M in Far Cry 5 is 350% more, than GeForce GT 645M.
high / 1080p
−
20−22
ultra / 1080p
5−6
14−16
QHD / 1440p
1−2
−
low / 720p
45−50
80−85
medium / 1080p
8−9
40−45
The average gaming FPS of Quadro K3100M in Fortnite is 130% more, than GeForce GT 645M.
high / 1080p
3−4
20−22
ultra / 1080p
−
16−18
QHD / 1440p
0−1
5−6
low / 720p
14−16
40−45
medium / 1080p
6−7
21−24
The average gaming FPS of Quadro K3100M in Forza Horizon 4 is 250% more, than GeForce GT 645M.
low / 768p
40−45
70−75
medium / 768p
−
60−65
high / 1080p
3−4
21−24
ultra / 1080p
2−3
9−10
QHD / 1440p
0−1
0−1
medium / 720p
35−40
−
The average gaming FPS of Quadro K3100M in Grand Theft Auto V is 112% more, than GeForce GT 645M.
high / 1080p
1−2
7−8
ultra / 1080p
0−1
5−6
4K / 2160p
0−1
1−2
low / 720p
3−4
21−24
medium / 1080p
2−3
10−11
The average gaming FPS of Quadro K3100M in Metro Exodus is 550% more, than GeForce GT 645M.
low / 768p
85−90
100−110
high / 1080p
55−60
−
ultra / 1080p
−
95−100
medium / 1080p
−
100−110
The average gaming FPS of Quadro K3100M in Minecraft is 20% more, than GeForce GT 645M.
high / 1080p
14−16
20−22
ultra / 1080p
12−14
16−18
low / 720p
24−27
45−50
medium / 1080p
14−16
21−24
The average gaming FPS of Quadro K3100M in PLAYERUNKNOWN'S BATTLEGROUNDS is 58% more, than GeForce GT 645M.
high / 1080p
−
12−14
ultra / 1080p
3−4
9−10
QHD / 1440p
0−1
0−1
low / 720p
4−5
21−24
medium / 1080p
−
14−16
The average gaming FPS of Quadro K3100M in Red Dead Redemption 2 is 300% more, than GeForce GT 645M.
low / 768p
8−9
40−45
medium / 768p
7−8
24−27
high / 1080p
3−4
14−16
ultra / 1080p
3−4
9−10
4K / 2160p
0−1
7−8
The average gaming FPS of Quadro K3100M in The Witcher 3: Wild Hunt is 360% more, than GeForce GT 645M.
low / 768p
70−75
95−100
medium / 768p
35−40
55−60
ultra / 1080p
12−14
27−30
high / 768p
30−33
45−50
The average gaming FPS of Quadro K3100M in World of Tanks is 50% more, than GeForce GT 645M.
Full Specs
GeForce GT 645M
Quadro K3100M
Architecture
Kepler
Kepler
Code name
N13P-GS
N15E-Q1-A2
Type
Laptop
Mobile workstation
Release date
22 March 2012
23 July 2013
Pipelines
384
768
Core clock speed
706 MHz
Transistor count
1,270 million
3,540 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
22.7 billion/sec
45.18
Floating-point performance
544.5 gflops
1,084 gflops
Memory bus width
128bit
256 Bit
Memory clock speed
1800 MHz
3200 MHz
Memory bandwidth
102.4 GB/s
Shared memory
-
-
DirectX
12 API
12
Shader Model
5.1
5
OpenGL
4.5
4.5
OpenCL
1.1
1.2
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
44 Mh/s
Laptop size
medium sized
large
Optimus
+
+
Display Port
1.2
3D Vision Pro
+
Mosaic
+
nView Display Management
+
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