GeForce GT 645M vs GRID K2
Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 645M and GRID K2. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GT 645M and GRID K2. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
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
GRID K2
Power consumption (TDP)
32 Watt
225 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 8-pin
Memory type
DDR3\GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Display Connectors
No outputs
No outputs
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GRID K2 has 603% more power consumption, than GeForce GT 645M.
Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
GRID K2 has 2 GB more memory, than GeForce GT 645M.
GeForce GT 645M is used in Laptops, and GRID K2 - in Desktops.
GeForce GT 645M and GRID K2 are build with Kepler architecture.
GeForce GT 645M and GRID K2 are manufactured by 28 nm process technology.
Memory clock speed of GRID K2 is 3200 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
16−18
ultra / 1080p
0−1
9−10
QHD / 1440p
0−1
4−5
4K / 2160p
−
4−5
low / 720p
12−14
30−35
medium / 1080p
2−3
20−22
The average gaming FPS of GRID K2 in Assassin's Creed Odyssey is 360% more, than GeForce GT 645M.
high / 1080p
−
24−27
ultra / 1080p
3−4
21−24
QHD / 1440p
0−1
9−10
4K / 2160p
−
6−7
low / 720p
12−14
55−60
medium / 1080p
4−5
27−30
The average gaming FPS of GRID K2 in Battlefield 5 is 414% 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 GRID K2.
low / 768p
110−120
210−220
medium / 768p
85−90
180−190
ultra / 1080p
35−40
100−110
QHD / 1440p
−
55−60
4K / 2160p
10−11
30−35
high / 768p
60−65
140−150
The average gaming FPS of GRID K2 in Counter-Strike: Global Offensive is 119% more, than GeForce GT 645M.
low / 768p
70−75
55−60
ultra / 1080p
14−16
40−45
medium / 1080p
45−50
45−50
The average gaming FPS of GRID K2 in Cyberpunk 2077 is 8% more, than GeForce GT 645M.
low / 768p
70−75
110−120
medium / 768p
45−50
95−100
ultra / 1080p
18−20
65−70
The average gaming FPS of GRID K2 in Dota 2 is 102% more, than GeForce GT 645M.
high / 1080p
2−3
18−20
ultra / 1080p
2−3
18−20
QHD / 1440p
−
16−18
4K / 2160p
0−1
6−7
low / 720p
10−11
40−45
medium / 1080p
3−4
21−24
The average gaming FPS of GRID K2 in Far Cry 5 is 525% more, than GeForce GT 645M.
high / 1080p
−
27−30
ultra / 1080p
5−6
21−24
QHD / 1440p
1−2
16−18
low / 720p
45−50
100−110
medium / 1080p
8−9
55−60
The average gaming FPS of GRID K2 in Fortnite is 233% more, than GeForce GT 645M.
high / 1080p
3−4
27−30
ultra / 1080p
−
21−24
QHD / 1440p
0−1
10−11
4K / 2160p
−
10−11
low / 720p
14−16
55−60
medium / 1080p
6−7
30−35
The average gaming FPS of GRID K2 in Forza Horizon 4 is 387% more, than GeForce GT 645M.
low / 768p
40−45
90−95
medium / 768p
−
80−85
high / 1080p
3−4
30−35
ultra / 1080p
2−3
12−14
QHD / 1440p
0−1
4−5
medium / 720p
35−40
−
The average gaming FPS of GRID K2 in Grand Theft Auto V is 187% more, than GeForce GT 645M.
high / 1080p
1−2
10−11
ultra / 1080p
0−1
8−9
4K / 2160p
0−1
3−4
low / 720p
3−4
30−35
medium / 1080p
2−3
14−16
The average gaming FPS of GRID K2 in Metro Exodus is 850% more, than GeForce GT 645M.
low / 768p
85−90
110−120
high / 1080p
55−60
−
medium / 1080p
−
100−110
The average gaming FPS of GRID K2 in Minecraft is 32% more, than GeForce GT 645M.
high / 1080p
14−16
24−27
ultra / 1080p
12−14
18−20
low / 720p
24−27
60−65
medium / 1080p
14−16
24−27
The average gaming FPS of GRID K2 in PLAYERUNKNOWN'S BATTLEGROUNDS is 94% more, than GeForce GT 645M.
high / 1080p
−
14−16
ultra / 1080p
3−4
10−11
QHD / 1440p
0−1
0−1
low / 720p
4−5
30−35
medium / 1080p
−
16−18
The average gaming FPS of GRID K2 in Red Dead Redemption 2 is 425% more, than GeForce GT 645M.
low / 768p
8−9
60−65
medium / 768p
7−8
35−40
high / 1080p
3−4
20−22
ultra / 1080p
3−4
12−14
4K / 2160p
0−1
8−9
The average gaming FPS of GRID K2 in The Witcher 3: Wild Hunt is 560% more, than GeForce GT 645M.
low / 768p
70−75
100−110
medium / 768p
35−40
60−65
ultra / 1080p
12−14
35−40
high / 768p
30−33
55−60
The average gaming FPS of GRID K2 in World of Tanks is 71% more, than GeForce GT 645M.
Full Specs
GeForce GT 645M
GRID K2
Architecture
Kepler
Kepler
Code name
N13P-GS
GK104
Type
Laptop
Workstation
Release date
22 March 2012
11 May 2013
Pipelines
384
1536
Core clock speed
745 MHz
Transistor count
1,270 million
3,540 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
22.7 billion/sec
95.36
Floating-point performance
544.5 gflops
2x 2,289 gflops
Length
267 mm
Memory bus width
128bit
256 Bit
Memory clock speed
1800 MHz
5000 MHz
Memory bandwidth
160.0 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
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
114 Mh/s
Laptop size
medium sized
Optimus
+
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