GeForce GT 645M vs Radeon Pro 555X
In this comparison between GeForce GT 645M and Radeon Pro 555X 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 Pro 555X will be their preference. Study the comparison tables below and make your choice.
GeForce GT 645M and Radeon Pro 555X are Laptop Graphics Cards
Note: GeForce GT 645M and Radeon Pro 555X 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 Pro 555X here:
Main Specs
GeForce GT 645M
Radeon Pro 555X
Power consumption (TDP)
32 Watt
75 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
None
Memory type
DDR3\GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Display Connectors
No outputs
No outputs
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Radeon Pro 555X has 134% more power consumption, than GeForce GT 645M.
GeForce GT 645M is connected by PCIe 3.0 x16, and Radeon Pro 555X uses PCIe 3.0 x8 interface.
GeForce GT 645M and Radeon Pro 555X have maximum RAM of 2 GB.
GeForce GT 645M is used in Laptops, and Radeon Pro 555X - in Mobile workstations.
GeForce GT 645M is build with Kepler architecture, and Radeon Pro 555X - with Polaris.
GeForce GT 645M is manufactured by 28 nm process technology, and Radeon Pro 555X - by 14 nm process technology.
Memory clock speed of Radeon Pro 555X is 3280 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
10−11
QHD / 1440p
0−1
4−5
4K / 2160p
−
4−5
low / 720p
12−14
30−35
medium / 1080p
2−3
21−24
The average gaming FPS of Radeon Pro 555X in Assassin's Creed Odyssey is 380% more, than GeForce GT 645M.
high / 1080p
−
24−27
ultra / 1080p
3−4
21−24
QHD / 1440p
0−1
10−11
4K / 2160p
−
6−7
low / 720p
12−14
55−60
medium / 1080p
4−5
30−33
The average gaming FPS of Radeon Pro 555X in Battlefield 5 is 428% 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 Radeon Pro 555X.
low / 768p
110−120
220−230
medium / 768p
85−90
190−200
ultra / 1080p
35−40
100−110
QHD / 1440p
−
60−65
4K / 2160p
10−11
30−35
high / 768p
60−65
150−160
The average gaming FPS of Radeon Pro 555X in Counter-Strike: Global Offensive is 129% 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 Radeon Pro 555X 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 Radeon Pro 555X in Dota 2 is 102% more, than GeForce GT 645M.
high / 1080p
2−3
20−22
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 Radeon Pro 555X in Far Cry 5 is 550% 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 Radeon Pro 555X 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 Radeon Pro 555X 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 Radeon Pro 555X 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 Radeon Pro 555X 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 Radeon Pro 555X 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 Radeon Pro 555X 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
−
18−20
The average gaming FPS of Radeon Pro 555X 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
21−24
ultra / 1080p
3−4
12−14
4K / 2160p
0−1
8−9
The average gaming FPS of Radeon Pro 555X 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 Radeon Pro 555X in World of Tanks is 71% more, than GeForce GT 645M.
Full Specs
GeForce GT 645M
Radeon Pro 555X
Architecture
Kepler
Polaris
Code name
N13P-GS
Polaris 21
Type
Laptop
Mobile workstation
Release date
22 March 2012
5 June 2017
Pipelines
384
768
Core clock speed
855 MHz
Transistor count
1,270 million
3,000 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
22.7 billion/sec
43.54
Floating-point performance
544.5 gflops
Memory bus width
128bit
128 Bit
Memory clock speed
1800 MHz
5080 MHz
Memory bandwidth
81.6 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
+
FreeSync
+
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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