GeForce GT 645M vs Radeon R8 M445DX
When comparing GeForce GT 645M and Radeon R8 M445DX, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GT 645M and Radeon R8 M445DX is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
GeForce GT 645M and Radeon R8 M445DX are Laptop Graphics Cards
Note: GeForce GT 645M and Radeon R8 M445DX 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 R8 M445DX here:
Main Specs
GeForce GT 645M
Radeon R8 M445DX
Power consumption (TDP)
32 Watt
Interface
PCIe 3.0 x16
IGP
Memory type
DDR3\GDDR5
DDR4/DDR3
Maximum RAM amount
2 GB
Display Connectors
No outputs
No outputs
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GeForce GT 645M is connected by PCIe 3.0 x16, and Radeon R8 M445DX uses IGP interface.
Both cards are used in Laptops.
GeForce GT 645M is build with Kepler architecture, and Radeon R8 M445DX - with GCN.
GeForce GT 645M and Radeon R8 M445DX are manufactured by 28 nm process technology.
Memory clock speed of GeForce GT 645M is 867 MHz higher, than Radeon R8 M445DX.
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
0−1
ultra / 1080p
0−1
−
QHD / 1440p
0−1
0−1
low / 720p
12−14
1−2
medium / 1080p
2−3
0−1
The average gaming FPS of GeForce GT 645M in Assassin's Creed Odyssey is 1200% more, than Radeon R8 M445DX.
ultra / 1080p
3−4
−
QHD / 1440p
0−1
0−1
low / 720p
12−14
0−1
medium / 1080p
4−5
−
low / 768p
50−55
50−55
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
GeForce GT 645M and Radeon R8 M445DX have the same average FPS in Call of Duty: Warzone.
low / 768p
110−120
60−65
medium / 768p
85−90
27−30
ultra / 1080p
35−40
7−8
4K / 2160p
10−11
−
high / 768p
60−65
16−18
The average gaming FPS of GeForce GT 645M in Counter-Strike: Global Offensive is 167% more, than Radeon R8 M445DX.
low / 768p
70−75
70−75
ultra / 1080p
14−16
0−1
medium / 1080p
45−50
45−50
GeForce GT 645M and Radeon R8 M445DX have the same average FPS in Cyberpunk 2077.
low / 768p
70−75
45−50
medium / 768p
45−50
10−11
ultra / 1080p
18−20
0−1
The average gaming FPS of GeForce GT 645M in Dota 2 is 106% more, than Radeon R8 M445DX.
high / 1080p
2−3
−
ultra / 1080p
2−3
−
4K / 2160p
0−1
−
low / 720p
10−11
0−1
medium / 1080p
3−4
−
ultra / 1080p
5−6
−
QHD / 1440p
1−2
−
low / 720p
45−50
21−24
medium / 1080p
8−9
0−1
The average gaming FPS of GeForce GT 645M in Fortnite is 113% more, than Radeon R8 M445DX.
high / 1080p
3−4
0−1
QHD / 1440p
0−1
0−1
low / 720p
14−16
0−1
medium / 1080p
6−7
0−1
low / 768p
40−45
18−20
high / 1080p
3−4
0−1
ultra / 1080p
2−3
−
QHD / 1440p
0−1
0−1
medium / 720p
35−40
12−14
The average gaming FPS of GeForce GT 645M in Grand Theft Auto V is 150% more, than Radeon R8 M445DX.
high / 1080p
1−2
−
ultra / 1080p
0−1
−
4K / 2160p
0−1
−
low / 720p
3−4
0−1
medium / 1080p
2−3
−
low / 768p
85−90
75−80
high / 1080p
55−60
27−30
The average gaming FPS of GeForce GT 645M in Minecraft is 35% more, than Radeon R8 M445DX.
high / 1080p
14−16
−
ultra / 1080p
12−14
−
low / 720p
24−27
8−9
medium / 1080p
14−16
−
The average gaming FPS of GeForce GT 645M in PLAYERUNKNOWN'S BATTLEGROUNDS is 212% more, than Radeon R8 M445DX.
ultra / 1080p
3−4
−
QHD / 1440p
0−1
−
low / 720p
4−5
0−1
low / 768p
8−9
0−1
medium / 768p
7−8
−
high / 1080p
3−4
−
ultra / 1080p
3−4
−
4K / 2160p
0−1
−
low / 768p
70−75
45−50
medium / 768p
35−40
14−16
ultra / 1080p
12−14
0−1
high / 768p
30−33
12−14
The average gaming FPS of GeForce GT 645M in World of Tanks is 88% more, than Radeon R8 M445DX.
Full Specs
GeForce GT 645M
Radeon R8 M445DX
Architecture
Kepler
GCN
Code name
N13P-GS
Meso
Type
Laptop
Laptop
Release date
22 March 2012
1 June 2016
Pipelines
384
704
Core clock speed
720 / 1020 MHz
Boost Clock
1021 MHz
Transistor count
1,270 million
1,550 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
22.7 billion/sec
20.42
Floating-point performance
544.5 gflops
Memory bus width
128bit
128 + 64 Bit
Memory clock speed
1800 MHz
933 / 1000 MHz
Shared memory
-
-
DirectX
12 API
12 (12_0)
Shader Model
5.1
6.0
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
medium sized
Optimus
+
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