GeForce GT 645M vs Radeon R9 M270X

When choosing between GeForce GT 645M and Radeon R9 M270X, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GT 645M and Radeon R9 M270X.

GeForce GT 645M Check Price

Radeon R9 M270X

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:

GeForce GT 645M Laptops

Main Specs

	GeForce GT 645M	Radeon R9 M270X
Power consumption (TDP)	32 Watt
Interface	PCIe 3.0 x16	PCIe 3.0 x16
Memory type	DDR3\GDDR5	GDDR5
Maximum RAM amount	2 GB	4 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.
Radeon R9 M270X has 2 GB more memory, than GeForce GT 645M.
GeForce GT 645M is used in Laptops, and Radeon R9 M270X - in Desktops.
GeForce GT 645M is build with Kepler architecture, and Radeon R9 M270X - with GCN 1.0.
GeForce GT 645M and Radeon R9 M270X are manufactured by 28 nm process technology.
Memory clock speed of GeForce GT 645M is 675 MHz higher, than Radeon R9 M270X.

Game benchmarks


high / 1080p	1−2	6−7
ultra / 1080p	0−1	4−5
QHD / 1440p	0−1	0−1
low / 720p	12−14	16−18
medium / 1080p	2−3	8−9
The average gaming FPS of Radeon R9 M270X in Assassin's Creed Odyssey is 100% more, than GeForce GT 645M.
high / 1080p	−	10−12
ultra / 1080p	3−4	10−11
QHD / 1440p	0−1	0−1
low / 720p	12−14	24−27
medium / 1080p	4−5	12−14
The average gaming FPS of Radeon R9 M270X in Battlefield 5 is 128% more, than GeForce GT 645M.
low / 768p	50−55	45−50
high / 1080p	45−50	45−50
QHD / 1440p	0−1	0−1
The average gaming FPS of GeForce GT 645M in Call of Duty: Warzone is 6% more, than Radeon R9 M270X.
low / 768p	110−120	130−140
medium / 768p	85−90	100−110
ultra / 1080p	35−40	50−55
QHD / 1440p	−	27−30
4K / 2160p	10−11	27−30
high / 768p	60−65	75−80
The average gaming FPS of Radeon R9 M270X in Counter-Strike: Global Offensive is 27% more, than GeForce GT 645M.
low / 768p	70−75	55−60
ultra / 1080p	14−16	18−20
medium / 1080p	45−50	45−50
The average gaming FPS of GeForce GT 645M in Cyberpunk 2077 is 9% more, than Radeon R9 M270X.
low / 768p	70−75	75−80
medium / 768p	45−50	55−60
ultra / 1080p	18−20	30−35
The average gaming FPS of Radeon R9 M270X in Dota 2 is 19% more, than GeForce GT 645M.
high / 1080p	2−3	8−9
ultra / 1080p	2−3	7−8
4K / 2160p	0−1	3−4
low / 720p	10−11	18−20
medium / 1080p	3−4	8−9
The average gaming FPS of Radeon R9 M270X in Far Cry 5 is 150% more, than GeForce GT 645M.
high / 1080p	−	14−16
ultra / 1080p	5−6	10−11
QHD / 1440p	1−2	−
low / 720p	45−50	60−65
medium / 1080p	8−9	21−24
The average gaming FPS of Radeon R9 M270X in Fortnite is 55% more, than GeForce GT 645M.
high / 1080p	3−4	12−14
ultra / 1080p	−	10−12
QHD / 1440p	0−1	1−2
low / 720p	14−16	24−27
medium / 1080p	6−7	12−14
The average gaming FPS of Radeon R9 M270X in Forza Horizon 4 is 112% more, than GeForce GT 645M.
low / 768p	40−45	50−55
medium / 768p	−	45−50
high / 1080p	3−4	12−14
ultra / 1080p	2−3	6−7
QHD / 1440p	0−1	0−1
medium / 720p	35−40	−
The average gaming FPS of Radeon R9 M270X in Grand Theft Auto V is 50% more, than GeForce GT 645M.
high / 1080p	1−2	4−5
ultra / 1080p	0−1	3−4
4K / 2160p	0−1	0−1
low / 720p	3−4	12−14
medium / 1080p	2−3	6−7
The average gaming FPS of Radeon R9 M270X in Metro Exodus is 300% more, than GeForce GT 645M.
low / 768p	85−90	90−95
high / 1080p	55−60	85−90
ultra / 1080p	−	80−85
medium / 1080p	−	90−95
The average gaming FPS of Radeon R9 M270X in Minecraft is 25% more, than GeForce GT 645M.
high / 1080p	14−16	16−18
ultra / 1080p	12−14	14−16
low / 720p	24−27	30−35
medium / 1080p	14−16	18−20
The average gaming FPS of Radeon R9 M270X in PLAYERUNKNOWN'S BATTLEGROUNDS is 17% more, than GeForce GT 645M.
ultra / 1080p	3−4	7−8
QHD / 1440p	0−1	0−1
low / 720p	4−5	10−12
medium / 1080p	−	10−12
The average gaming FPS of Radeon R9 M270X in Red Dead Redemption 2 is 125% more, than GeForce GT 645M.
low / 768p	8−9	24−27
medium / 768p	7−8	16−18
high / 1080p	3−4	9−10
ultra / 1080p	3−4	6−7
4K / 2160p	0−1	−
The average gaming FPS of Radeon R9 M270X in The Witcher 3: Wild Hunt is 180% more, than GeForce GT 645M.
low / 768p	70−75	85−90
medium / 768p	35−40	40−45
ultra / 1080p	12−14	18−20
high / 768p	30−33	35−40
The average gaming FPS of Radeon R9 M270X in World of Tanks is 21% more, than GeForce GT 645M.

Full Specs

	GeForce GT 645M	Radeon R9 M270X
Architecture	Kepler	GCN 1.0
Code name	N13P-GS	Venus
Type	Laptop	Desktop
Release date	22 March 2012	21 March 2014
Pipelines	384	640
Core clock speed		725 MHz
Boost Clock		775 MHz
Transistor count	1,270 million	1,500 million
Manufacturing process technology	28 nm	28 nm
Texture fill rate	22.7 billion/sec	31.00
Floating-point performance	544.5 gflops	1,536 gflops
Memory bus width	128bit	128 Bit
Memory clock speed	1800 MHz	1125 MHz
Memory bandwidth		72 GB/s
Shared memory	-
DirectX	12 API
Shader Model	5.1	5.1
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	PCIe 3.0 x16
HDMI	+
HDCP	+
Maximum VGA resolution	Up to 2048x1536
3D Blu-Ray	+
Bitcoin / BTC (SHA256)	19 Mh/s
Laptop size	medium sized
Optimus	+
Eyefinity		+
HD3D		+
PowerTune		+
DualGraphics		+
ZeroCore		+
Switchable graphics		+
Mantle		+
Compute units		10
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GeForce GT 645M vs Radeon R9 M270X

GeForce GT 645M is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

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