GeForce GT 645M vs Radeon R9 270X

When choosing between GeForce GT 645M and Radeon R9 270X, 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 270X.

GeForce GT 645M Check Price

Radeon R9 270X Check Price

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 270X
Power consumption (TDP)	32 Watt	180 Watt
Interface	PCIe 3.0 x16	PCIe 3.0 x16
Supplementary power connectors		2 x 6-pin
Memory type	DDR3\GDDR5	GDDR5
Maximum RAM amount	2 GB	2 GB
Display Connectors	No outputs	2x DVI, 1x HDMI, 1x DisplayPort
	Check Price	Check Price

Radeon R9 270X has 462% more power consumption, than GeForce GT 645M.
Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
GeForce GT 645M and Radeon R9 270X have maximum RAM of 2 GB.
GeForce GT 645M is used in Laptops, and Radeon R9 270X - in Desktops.
GeForce GT 645M is build with Kepler architecture, and Radeon R9 270X - with GCN.
GeForce GT 645M and Radeon R9 270X are manufactured by 28 nm process technology.

Game benchmarks


high / 1080p	1−2	24−27
ultra / 1080p	0−1	14−16
QHD / 1440p	0−1	10−11
4K / 2160p	−	6−7
low / 720p	12−14	45−50
medium / 1080p	2−3	30−35
The average gaming FPS of Radeon R9 270X in Assassin's Creed Odyssey is 600% more, than GeForce GT 645M.
high / 1080p	−	40−45
ultra / 1080p	3−4	30−35
QHD / 1440p	0−1	18−20
4K / 2160p	−	10−12
low / 720p	12−14	80−85
medium / 1080p	4−5	45−50
The average gaming FPS of Radeon R9 270X in Battlefield 5 is 671% more, than GeForce GT 645M.
low / 768p	50−55	50−55
high / 1080p	45−50	−
QHD / 1440p	0−1	0−1
GeForce GT 645M and Radeon R9 270X have the same average FPS in Call of Duty: Warzone.
low / 768p	110−120	240−250
medium / 768p	85−90	210−220
ultra / 1080p	35−40	140−150
QHD / 1440p	−	110−120
4K / 2160p	10−11	60−65
high / 768p	60−65	180−190
The average gaming FPS of Radeon R9 270X in Counter-Strike: Global Offensive is 174% more, than GeForce GT 645M.
low / 768p	70−75	60−65
ultra / 1080p	14−16	−
medium / 1080p	45−50	55−60
GeForce GT 645M and Radeon R9 270X have the same average FPS in Cyberpunk 2077.
low / 768p	70−75	120−130
medium / 768p	45−50	110−120
ultra / 1080p	18−20	90−95
The average gaming FPS of Radeon R9 270X in Dota 2 is 139% more, than GeForce GT 645M.
high / 1080p	2−3	30−35
ultra / 1080p	2−3	27−30
QHD / 1440p	−	21−24
4K / 2160p	0−1	10−11
low / 720p	10−11	60−65
medium / 1080p	3−4	30−35
The average gaming FPS of Radeon R9 270X in Far Cry 5 is 875% more, than GeForce GT 645M.
high / 1080p	−	40−45
ultra / 1080p	5−6	30−35
QHD / 1440p	1−2	18−20
low / 720p	45−50	140−150
medium / 1080p	8−9	85−90
The average gaming FPS of Radeon R9 270X in Fortnite is 373% more, than GeForce GT 645M.
high / 1080p	3−4	40−45
ultra / 1080p	−	30−35
QHD / 1440p	0−1	18−20
4K / 2160p	−	16−18
low / 720p	14−16	80−85
medium / 1080p	6−7	45−50
The average gaming FPS of Radeon R9 270X in Forza Horizon 4 is 612% more, than GeForce GT 645M.
low / 768p	40−45	110−120
medium / 768p	−	100−110
high / 1080p	3−4	50−55
ultra / 1080p	2−3	21−24
QHD / 1440p	0−1	10−12
medium / 720p	35−40	−
The average gaming FPS of Radeon R9 270X in Grand Theft Auto V is 293% more, than GeForce GT 645M.
high / 1080p	1−2	16−18
ultra / 1080p	0−1	12−14
QHD / 1440p	−	12−14
4K / 2160p	0−1	4−5
low / 720p	3−4	45−50
medium / 1080p	2−3	21−24
The average gaming FPS of Radeon R9 270X in Metro Exodus is 1350% more, than GeForce GT 645M.
low / 768p	85−90	120−130
high / 1080p	55−60	−
medium / 1080p	−	110−120
The average gaming FPS of Radeon R9 270X in Minecraft is 43% more, than GeForce GT 645M.
high / 1080p	14−16	−
ultra / 1080p	12−14	14−16
low / 720p	24−27	80−85
medium / 1080p	14−16	18−20
The average gaming FPS of Radeon R9 270X in PLAYERUNKNOWN'S BATTLEGROUNDS is 123% more, than GeForce GT 645M.
high / 1080p	−	18−20
ultra / 1080p	3−4	12−14
QHD / 1440p	0−1	4−5
4K / 2160p	−	3−4
low / 720p	4−5	45−50
medium / 1080p	−	24−27
The average gaming FPS of Radeon R9 270X in Red Dead Redemption 2 is 650% more, than GeForce GT 645M.
low / 768p	8−9	90−95
medium / 768p	7−8	55−60
high / 1080p	3−4	30−35
ultra / 1080p	3−4	18−20
4K / 2160p	0−1	10−11
The average gaming FPS of Radeon R9 270X in The Witcher 3: Wild Hunt is 900% more, than GeForce GT 645M.
low / 768p	70−75	90−95
medium / 768p	35−40	60−65
ultra / 1080p	12−14	45−50
high / 768p	30−33	55−60
The average gaming FPS of Radeon R9 270X in World of Tanks is 71% more, than GeForce GT 645M.

Full Specs

	GeForce GT 645M	Radeon R9 270X
Architecture	Kepler	GCN
Code name	N13P-GS	Curacao XT
Type	Laptop	Desktop
Release date	22 March 2012	8 October 2013
Pipelines	384	1280
Boost Clock		1050 MHz
Transistor count	1,270 million	2,800 million
Manufacturing process technology	28 nm	28 nm
Texture fill rate	22.7 billion/sec	84.00
Floating-point performance	544.5 gflops	2,688 gflops
Memory bus width	128bit	256 Bit
Memory clock speed	1800 MHz
Memory bandwidth		179.2 GB/s
Shared memory	-	-
DirectX	12 API
Shader Model	5.1	5.1
OpenGL	4.5	4.6
OpenCL	1.1	1.2
Vulkan	1.1.126	+
CUDA	+
FreeSync		+
CUDA cores	384
Bus support	PCI Express 2.0, PCI Express 3.0	PCIe 3.0
HDMI	+	+
HDCP	+
Maximum VGA resolution	Up to 2048x1536
3D Blu-Ray	+
Bitcoin / BTC (SHA256)	19 Mh/s	318 Mh/s
Laptop size	medium sized
Optimus	+
Eyefinity		+
HD3D		+
TrueAudio		+
Design		reference
DisplayPort support		+
CrossFire		+
DDMA audio		+
Ethereum / ETH (DaggerHashimoto)		30 Mh/s
Zcash / ZEC (Equihash)		163 Sol/s
AppAcceleration		+
LiquidVR		+
TressFX		+
UVD		+
	Check Price	Check Price

GeForce GT 645M vs Radeon R9 270X

GeForce GT 645M is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

Similar compares