GeForce GT 645M vs Radeon R9 M280X
Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 645M and Radeon R9 M280X. 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 Radeon R9 M280X. 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 and Radeon R9 M280X are Laptop Graphics Cards
Note: GeForce GT 645M and Radeon R9 M280X 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 R9 M280X here:
Main Specs
GeForce GT 645M
Radeon R9 M280X
Power consumption (TDP)
32 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Memory type
DDR3\GDDR5
Not Listed
Maximum RAM amount
2 GB
Display Connectors
No outputs
No outputs
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Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
Both cards are used in Laptops.
GeForce GT 645M is build with Kepler architecture, and Radeon R9 M280X - with GCN.
GeForce GT 645M and Radeon R9 M280X are manufactured by 28 nm process technology.
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
2−3
ultra / 1080p
0−1
1−2
QHD / 1440p
0−1
0−1
low / 720p
12−14
14−16
medium / 1080p
2−3
4−5
The average gaming FPS of Radeon R9 M280X in Assassin's Creed Odyssey is 40% more, than GeForce GT 645M.
high / 1080p
−
7−8
ultra / 1080p
3−4
5−6
QHD / 1440p
0−1
0−1
low / 720p
12−14
18−20
medium / 1080p
4−5
7−8
The average gaming FPS of Radeon R9 M280X in Battlefield 5 is 42% more, than GeForce GT 645M.
low / 768p
50−55
50−55
high / 1080p
45−50
30−35
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GT 645M in Call of Duty: Warzone is 19% more, than Radeon R9 M280X.
low / 768p
110−120
110−120
medium / 768p
85−90
90−95
ultra / 1080p
35−40
40−45
QHD / 1440p
−
24−27
4K / 2160p
10−11
18−20
high / 768p
60−65
65−70
The average gaming FPS of Radeon R9 M280X in Counter-Strike: Global Offensive is 8% more, than GeForce GT 645M.
low / 768p
70−75
70−75
ultra / 1080p
14−16
21−24
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon R9 M280X in Cyberpunk 2077 is 4% more, than GeForce GT 645M.
low / 768p
70−75
70−75
medium / 768p
45−50
50−55
ultra / 1080p
18−20
27−30
The average gaming FPS of Radeon R9 M280X in Dota 2 is 10% more, than GeForce GT 645M.
high / 1080p
2−3
3−4
ultra / 1080p
2−3
3−4
4K / 2160p
0−1
2−3
low / 720p
10−11
14−16
medium / 1080p
3−4
4−5
The average gaming FPS of Radeon R9 M280X in Far Cry 5 is 50% more, than GeForce GT 645M.
high / 1080p
−
10−12
ultra / 1080p
5−6
5−6
QHD / 1440p
1−2
2−3
low / 720p
45−50
50−55
medium / 1080p
8−9
14−16
The average gaming FPS of Radeon R9 M280X in Fortnite is 20% more, than GeForce GT 645M.
high / 1080p
3−4
6−7
QHD / 1440p
0−1
4−5
4K / 2160p
−
2−3
low / 720p
14−16
21−24
medium / 1080p
6−7
9−10
The average gaming FPS of Radeon R9 M280X in Forza Horizon 4 is 50% more, than GeForce GT 645M.
low / 768p
40−45
45−50
medium / 768p
−
40−45
high / 1080p
3−4
7−8
ultra / 1080p
2−3
3−4
QHD / 1440p
0−1
0−1
medium / 720p
35−40
−
The average gaming FPS of Radeon R9 M280X in Grand Theft Auto V is 18% more, than GeForce GT 645M.
high / 1080p
1−2
2−3
ultra / 1080p
0−1
0−1
4K / 2160p
0−1
0−1
low / 720p
3−4
8−9
medium / 1080p
2−3
4−5
The average gaming FPS of Radeon R9 M280X in Metro Exodus is 150% more, than GeForce GT 645M.
low / 768p
85−90
80−85
high / 1080p
55−60
−
ultra / 1080p
−
70−75
The average gaming FPS of GeForce GT 645M in Minecraft is 6% more, than Radeon R9 M280X.
high / 1080p
14−16
−
ultra / 1080p
12−14
12−14
low / 720p
24−27
27−30
medium / 1080p
14−16
14−16
The average gaming FPS of Radeon R9 M280X in PLAYERUNKNOWN'S BATTLEGROUNDS is 5% more, than GeForce GT 645M.
ultra / 1080p
3−4
6−7
QHD / 1440p
0−1
−
low / 720p
4−5
8−9
medium / 1080p
−
7−8
The average gaming FPS of Radeon R9 M280X in Red Dead Redemption 2 is 75% more, than GeForce GT 645M.
low / 768p
8−9
16−18
medium / 768p
7−8
10−12
high / 1080p
3−4
6−7
ultra / 1080p
3−4
4−5
4K / 2160p
0−1
2−3
The average gaming FPS of Radeon R9 M280X in The Witcher 3: Wild Hunt is 80% more, than GeForce GT 645M.
low / 768p
70−75
70−75
medium / 768p
35−40
35−40
ultra / 1080p
12−14
16−18
high / 768p
30−33
30−35
The average gaming FPS of Radeon R9 M280X in World of Tanks is 2% more, than GeForce GT 645M.
Full Specs
GeForce GT 645M
Radeon R9 M280X
Architecture
Kepler
GCN
Code name
N13P-GS
Saturn XT
Type
Laptop
Laptop
Release date
22 March 2012
1 February 2015
Pipelines
384
896
Core clock speed
900 MHz
Transistor count
1,270 million
2,080 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
22.7 billion/sec
61.60
Floating-point performance
544.5 gflops
1,792 gflops
Memory bus width
128bit
Memory clock speed
1800 MHz
Memory bandwidth
96 GB/s
Shared memory
-
-
DirectX
12 API
Shader Model
5.1
6.3
OpenGL
4.5
4.4
OpenCL
1.1
Not Listed
Vulkan
1.1.126
CUDA
+
FreeSync
+
CUDA cores
384
Bus support
PCI Express 2.0, PCI Express 3.0
Not Listed
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
3D Blu-Ray
+
Bitcoin / BTC (SHA256)
19 Mh/s
Laptop size
medium sized
large
Optimus
+
HD3D
+
PowerTune
+
DualGraphics
+
ZeroCore
+
Switchable graphics
+
Mantle
+
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