GeForce GT 645M vs Radeon R7 M270DX

In this comparison between GeForce GT 645M and Radeon R7 M270DX 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 R7 M270DX will be their preference. Study the comparison tables below and make your choice.

GeForce GT 645M Check Price

Radeon R7 M270DX

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 R7 M270DX
Power consumption (TDP)	32 Watt
Interface	PCIe 3.0 x16	IGP
Memory type	DDR3\GDDR5	System Shared
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 R7 M270DX uses IGP interface.
GeForce GT 645M is used in Laptops, and Radeon R7 M270DX - in Desktops.
GeForce GT 645M is build with Kepler architecture, and Radeon R7 M270DX - with GCN 3.0.
GeForce GT 645M and Radeon R7 M270DX are manufactured by 28 nm process technology.

Game benchmarks


high / 1080p	1−2	2−3
ultra / 1080p	0−1	0−1
QHD / 1440p	0−1	0−1
low / 720p	12−14	12−14
medium / 1080p	2−3	3−4
The average gaming FPS of Radeon R7 M270DX in Assassin's Creed Odyssey is 20% more, than GeForce GT 645M.
ultra / 1080p	3−4	4−5
QHD / 1440p	0−1	0−1
low / 720p	12−14	14−16
medium / 1080p	4−5	5−6
The average gaming FPS of Radeon R7 M270DX in Battlefield 5 is 14% more, than GeForce GT 645M.
low / 768p	50−55	50−55
high / 1080p	45−50	40−45
QHD / 1440p	0−1	0−1
The average gaming FPS of GeForce GT 645M in Call of Duty: Warzone is 6% more, than Radeon R7 M270DX.
low / 768p	110−120	120−130
medium / 768p	85−90	90−95
ultra / 1080p	35−40	35−40
QHD / 1440p	−	21−24
4K / 2160p	10−11	16−18
high / 768p	60−65	60−65
The average gaming FPS of Radeon R7 M270DX in Counter-Strike: Global Offensive is 6% more, than GeForce GT 645M.
low / 768p	70−75	65−70
ultra / 1080p	14−16	18−20
medium / 1080p	45−50	45−50
The average gaming FPS of GeForce GT 645M in Cyberpunk 2077 is 2% more, than Radeon R7 M270DX.
low / 768p	70−75	75−80
medium / 768p	45−50	45−50
ultra / 1080p	18−20	20−22
The average gaming FPS of Radeon R7 M270DX in Dota 2 is 4% more, than GeForce GT 645M.
high / 1080p	2−3	2−3
ultra / 1080p	2−3	2−3
4K / 2160p	0−1	2−3
low / 720p	10−11	10−11
medium / 1080p	3−4	3−4
GeForce GT 645M and Radeon R7 M270DX have the same average FPS in Far Cry 5.
ultra / 1080p	5−6	5−6
QHD / 1440p	1−2	3−4
low / 720p	45−50	50−55
medium / 1080p	8−9	10−11
The average gaming FPS of Radeon R7 M270DX in Fortnite is 20% more, than GeForce GT 645M.
high / 1080p	3−4	5−6
QHD / 1440p	0−1	3−4
4K / 2160p	−	2−3
low / 720p	14−16	16−18
medium / 1080p	6−7	7−8
The average gaming FPS of Radeon R7 M270DX in Forza Horizon 4 is 25% more, than GeForce GT 645M.
low / 768p	40−45	40−45
high / 1080p	3−4	3−4
ultra / 1080p	2−3	2−3
QHD / 1440p	0−1	0−1
medium / 720p	35−40	35−40
GeForce GT 645M and Radeon R7 M270DX have the same average FPS in Grand Theft Auto V.
high / 1080p	1−2	1−2
ultra / 1080p	0−1	0−1
4K / 2160p	0−1	0−1
low / 720p	3−4	4−5
medium / 1080p	2−3	3−4
The average gaming FPS of Radeon R7 M270DX in Metro Exodus is 50% more, than GeForce GT 645M.
low / 768p	85−90	90−95
high / 1080p	55−60	80−85
ultra / 1080p	−	70−75
medium / 1080p	−	85−90
The average gaming FPS of Radeon R7 M270DX in Minecraft is 20% more, than GeForce GT 645M.
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 R7 M270DX in PLAYERUNKNOWN'S BATTLEGROUNDS is 5% more, than GeForce GT 645M.
ultra / 1080p	3−4	−
QHD / 1440p	0−1	−
low / 720p	4−5	6−7
The average gaming FPS of Radeon R7 M270DX in Red Dead Redemption 2 is 50% more, than GeForce GT 645M.
low / 768p	8−9	9−10
medium / 768p	7−8	7−8
high / 1080p	3−4	4−5
ultra / 1080p	3−4	3−4
4K / 2160p	0−1	1−2
The average gaming FPS of Radeon R7 M270DX in The Witcher 3: Wild Hunt is 20% more, than GeForce GT 645M.
low / 768p	70−75	70−75
medium / 768p	35−40	35−40
ultra / 1080p	12−14	12−14
high / 768p	30−33	30−35
GeForce GT 645M and Radeon R7 M270DX have the same average FPS in World of Tanks.

Full Specs

	GeForce GT 645M	Radeon R7 M270DX
Architecture	Kepler	GCN 3.0
Code name	N13P-GS	Topaz
Type	Laptop	Desktop
Release date	22 March 2012	11 June 2014
Pipelines	384	384
Core clock speed		900 MHz
Boost Clock		940 MHz
Transistor count	1,270 million	1,550 million
Manufacturing process technology	28 nm	28 nm
Texture fill rate	22.7 billion/sec	22.56
Floating-point performance	544.5 gflops
Memory bus width	128bit
Memory clock speed	1800 MHz
Shared memory	-
DirectX	12 API	12 (12_0)
Shader Model	5.1	6.3
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
Optimus	+
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GeForce GT 645M vs Radeon R7 M270DX

GeForce GT 645M is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

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