GeForce GT 645M vs Quadro K4000
If you are going to buy a new graphics card and are choosing between GeForce GT 645M and Quadro K4000, 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 K4000, check out specs charts below.
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 K4000
Power consumption (TDP)
32 Watt
80 Watt
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
Memory type
DDR3\GDDR5
GDDR5
Maximum RAM amount
2 GB
3 GB
Display Connectors
No outputs
1x DVI, 2x DisplayPort
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Quadro K4000 has 150% more power consumption, than GeForce GT 645M.
GeForce GT 645M is connected by PCIe 3.0 x16, and Quadro K4000 uses PCIe 2.0 x16 interface.
Quadro K4000 has 1 GB more memory, than GeForce GT 645M.
GeForce GT 645M is used in Laptops, and Quadro K4000 - in Desktops.
GeForce GT 645M and Quadro K4000 are build with Kepler architecture.
GeForce GT 645M and Quadro K4000 are manufactured by 28 nm process technology.
Memory clock speed of Quadro K4000 is 3816 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
14−16
ultra / 1080p
0−1
8−9
QHD / 1440p
0−1
3−4
low / 720p
12−14
27−30
medium / 1080p
2−3
16−18
The average gaming FPS of Quadro K4000 in Assassin's Creed Odyssey is 300% more, than GeForce GT 645M.
high / 1080p
−
21−24
ultra / 1080p
3−4
18−20
QHD / 1440p
0−1
5−6
4K / 2160p
−
4−5
low / 720p
12−14
45−50
medium / 1080p
4−5
24−27
The average gaming FPS of Quadro K4000 in Battlefield 5 is 328% 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 K4000.
low / 768p
110−120
200−210
medium / 768p
85−90
170−180
ultra / 1080p
35−40
90−95
QHD / 1440p
−
50−55
4K / 2160p
10−11
30−33
high / 768p
60−65
130−140
The average gaming FPS of Quadro K4000 in Counter-Strike: Global Offensive is 104% more, than GeForce GT 645M.
low / 768p
70−75
55−60
ultra / 1080p
14−16
35−40
medium / 1080p
45−50
45−50
The average gaming FPS of Quadro K4000 in Cyberpunk 2077 is 4% more, than GeForce GT 645M.
low / 768p
70−75
100−110
medium / 768p
45−50
90−95
ultra / 1080p
18−20
55−60
The average gaming FPS of Quadro K4000 in Dota 2 is 84% more, than GeForce GT 645M.
high / 1080p
2−3
16−18
ultra / 1080p
2−3
14−16
4K / 2160p
0−1
5−6
low / 720p
10−11
35−40
medium / 1080p
3−4
16−18
The average gaming FPS of Quadro K4000 in Far Cry 5 is 425% more, than GeForce GT 645M.
high / 1080p
−
21−24
ultra / 1080p
5−6
18−20
QHD / 1440p
1−2
16−18
low / 720p
45−50
90−95
medium / 1080p
8−9
45−50
The average gaming FPS of Quadro K4000 in Fortnite is 193% more, than GeForce GT 645M.
high / 1080p
3−4
21−24
ultra / 1080p
−
18−20
QHD / 1440p
0−1
7−8
low / 720p
14−16
45−50
medium / 1080p
6−7
24−27
The average gaming FPS of Quadro K4000 in Forza Horizon 4 is 287% more, than GeForce GT 645M.
low / 768p
40−45
80−85
medium / 768p
−
70−75
high / 1080p
3−4
27−30
ultra / 1080p
2−3
10−12
QHD / 1440p
0−1
2−3
medium / 720p
35−40
−
The average gaming FPS of Quadro K4000 in Grand Theft Auto V is 150% more, than GeForce GT 645M.
high / 1080p
1−2
9−10
ultra / 1080p
0−1
7−8
4K / 2160p
0−1
2−3
low / 720p
3−4
24−27
medium / 1080p
2−3
12−14
The average gaming FPS of Quadro K4000 in Metro Exodus is 700% more, than GeForce GT 645M.
low / 768p
85−90
110−120
high / 1080p
55−60
−
ultra / 1080p
−
100−110
medium / 1080p
−
100−110
The average gaming FPS of Quadro K4000 in Minecraft is 32% more, than GeForce GT 645M.
high / 1080p
14−16
21−24
ultra / 1080p
12−14
16−18
low / 720p
24−27
50−55
medium / 1080p
14−16
21−24
The average gaming FPS of Quadro K4000 in PLAYERUNKNOWN'S BATTLEGROUNDS is 64% more, than GeForce GT 645M.
high / 1080p
−
14−16
ultra / 1080p
3−4
9−10
QHD / 1440p
0−1
0−1
low / 720p
4−5
24−27
medium / 1080p
−
14−16
The average gaming FPS of Quadro K4000 in Red Dead Redemption 2 is 325% more, than GeForce GT 645M.
low / 768p
8−9
50−55
medium / 768p
7−8
30−35
high / 1080p
3−4
16−18
ultra / 1080p
3−4
10−11
4K / 2160p
0−1
8−9
The average gaming FPS of Quadro K4000 in The Witcher 3: Wild Hunt is 460% more, than GeForce GT 645M.
low / 768p
70−75
100−105
medium / 768p
35−40
60−65
ultra / 1080p
12−14
30−35
high / 768p
30−33
50−55
The average gaming FPS of Quadro K4000 in World of Tanks is 63% more, than GeForce GT 645M.
Full Specs
GeForce GT 645M
Quadro K4000
Architecture
Kepler
Kepler
Code name
N13P-GS
GK106
Type
Laptop
Workstation
Release date
22 March 2012
1 March 2013
Pipelines
384
768
Core clock speed
810 MHz
Transistor count
1,270 million
2,540 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
22.7 billion/sec
51.84
Floating-point performance
544.5 gflops
1,244 gflops
Length
241 mm
Memory bus width
128bit
192 Bit
Memory clock speed
1800 MHz
5616 MHz
Memory bandwidth
134.8 GB/s
Shared memory
-
DirectX
12 API
12 (11_0)
Shader Model
5.1
5.1
OpenGL
4.5
4.6
OpenCL
1.1
1.2
Vulkan
1.1.126
1.1.126
CUDA
+
3.0
Monero / XMR (CryptoNight)
0.21 kh/s
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
61 Mh/s
Laptop size
medium sized
Optimus
+
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