GeForce GT 645M vs Radeon RX 480 mobile
In this comparison between GeForce GT 645M and Radeon RX 480 mobile 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 Radeon RX 480 mobile will be their preference. Study the comparison tables below and make your choice.
GeForce GT 645M and Radeon RX 480 mobile are Laptop Graphics Cards
Note: GeForce GT 645M and Radeon RX 480 mobile 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 Radeon RX 480 mobile here:
Main Specs
GeForce GT 645M
Radeon RX 480 mobile
Power consumption (TDP)
32 Watt
100 Watt
Interface
PCIe 3.0 x16
MXM-B (3.0)
Memory type
DDR3\GDDR5
GDDR5
Maximum RAM amount
2 GB
8 GB
Display Connectors
No outputs
No outputs
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Radeon RX 480 mobile has 212% more power consumption, than GeForce GT 645M.
GeForce GT 645M is connected by PCIe 3.0 x16, and Radeon RX 480 mobile uses MXM-B (3.0) interface.
Radeon RX 480 mobile has 6 GB more memory, than GeForce GT 645M.
Both cards are used in Laptops.
GeForce GT 645M is build with Kepler architecture, and Radeon RX 480 mobile - with Polaris.
GeForce GT 645M is manufactured by 28 nm process technology, and Radeon RX 480 mobile - by 14 nm process technology.
Memory clock speed of Radeon RX 480 mobile is 6200 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
12−14
ultra / 1080p
0−1
7−8
QHD / 1440p
0−1
0−1
low / 720p
12−14
27−30
medium / 1080p
2−3
14−16
The average gaming FPS of Radeon RX 480 mobile in Assassin's Creed Odyssey is 260% more, than GeForce GT 645M.
high / 1080p
−
20−22
ultra / 1080p
3−4
16−18
QHD / 1440p
0−1
0−1
low / 720p
12−14
45−50
medium / 1080p
4−5
21−24
The average gaming FPS of Radeon RX 480 mobile in Battlefield 5 is 314% more, than GeForce GT 645M.
low / 768p
50−55
50−55
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
GeForce GT 645M and Radeon RX 480 mobile have the same average FPS in Call of Duty: Warzone.
low / 768p
110−120
190−200
medium / 768p
85−90
160−170
ultra / 1080p
35−40
85−90
QHD / 1440p
−
45−50
4K / 2160p
10−11
24−27
high / 768p
60−65
120−130
The average gaming FPS of Radeon RX 480 mobile in Counter-Strike: Global Offensive is 91% more, than GeForce GT 645M.
low / 768p
70−75
60−65
ultra / 1080p
14−16
35−40
medium / 1080p
45−50
55−60
The average gaming FPS of Radeon RX 480 mobile in Cyberpunk 2077 is 15% more, than GeForce GT 645M.
low / 768p
70−75
100−110
medium / 768p
45−50
85−90
ultra / 1080p
18−20
55−60
The average gaming FPS of Radeon RX 480 mobile in Dota 2 is 80% more, than GeForce GT 645M.
high / 1080p
2−3
14−16
ultra / 1080p
2−3
12−14
4K / 2160p
0−1
4−5
low / 720p
10−11
30−35
medium / 1080p
3−4
16−18
The average gaming FPS of Radeon RX 480 mobile in Far Cry 5 is 375% more, than GeForce GT 645M.
high / 1080p
−
21−24
ultra / 1080p
5−6
16−18
QHD / 1440p
1−2
10−12
low / 720p
45−50
90−95
medium / 1080p
8−9
45−50
The average gaming FPS of Radeon RX 480 mobile in Fortnite is 180% more, than GeForce GT 645M.
high / 1080p
3−4
21−24
ultra / 1080p
−
16−18
QHD / 1440p
0−1
5−6
low / 720p
14−16
45−50
medium / 1080p
6−7
24−27
The average gaming FPS of Radeon RX 480 mobile in Forza Horizon 4 is 287% more, than GeForce GT 645M.
low / 768p
40−45
75−80
medium / 768p
−
70−75
high / 1080p
3−4
24−27
ultra / 1080p
2−3
10−11
QHD / 1440p
0−1
0−1
medium / 720p
35−40
−
The average gaming FPS of Radeon RX 480 mobile in Grand Theft Auto V is 131% more, than GeForce GT 645M.
high / 1080p
1−2
7−8
ultra / 1080p
0−1
6−7
4K / 2160p
0−1
0−1
low / 720p
3−4
24−27
medium / 1080p
2−3
10−12
The average gaming FPS of Radeon RX 480 mobile in Metro Exodus is 600% more, than GeForce GT 645M.
low / 768p
85−90
100−110
high / 1080p
55−60
−
ultra / 1080p
−
100−110
medium / 1080p
−
100−110
The average gaming FPS of Radeon RX 480 mobile in Minecraft is 20% more, than GeForce GT 645M.
high / 1080p
14−16
−
ultra / 1080p
12−14
14−16
low / 720p
24−27
50−55
medium / 1080p
14−16
18−20
The average gaming FPS of Radeon RX 480 mobile in PLAYERUNKNOWN'S BATTLEGROUNDS is 64% more, than GeForce GT 645M.
high / 1080p
−
10−12
ultra / 1080p
3−4
7−8
QHD / 1440p
0−1
0−1
low / 720p
4−5
24−27
medium / 1080p
−
14−16
The average gaming FPS of Radeon RX 480 mobile in Red Dead Redemption 2 is 300% more, than GeForce GT 645M.
low / 768p
8−9
45−50
medium / 768p
7−8
27−30
high / 1080p
3−4
16−18
ultra / 1080p
3−4
9−10
4K / 2160p
0−1
5−6
The average gaming FPS of Radeon RX 480 mobile in The Witcher 3: Wild Hunt is 400% more, than GeForce GT 645M.
low / 768p
70−75
90−95
medium / 768p
35−40
55−60
ultra / 1080p
12−14
30−35
high / 768p
30−33
50−55
The average gaming FPS of Radeon RX 480 mobile in World of Tanks is 52% more, than GeForce GT 645M.
Full Specs
GeForce GT 645M
Radeon RX 480 mobile
Architecture
Kepler
Polaris
Code name
N13P-GS
Polaris
Type
Laptop
Laptop
Release date
22 March 2012
1 August 2016
Pipelines
384
2304
Boost Clock
1077 MHz
Transistor count
1,270 million
5,700 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
22.7 billion/sec
155.1
Floating-point performance
544.5 gflops
4,963 gflops
Memory bus width
128bit
256 Bit
Memory clock speed
1800 MHz
8000 MHz
Memory bandwidth
256.0 GB/s
Shared memory
-
-
DirectX
12 API
12 (12_0)
Shader Model
5.1
6.4
OpenGL
4.5
4.6
OpenCL
1.1
2.0
Vulkan
1.1.126
1.2.131
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
large
Optimus
+
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