GeForce GT 640M vs Radeon R7 512 Cores Kaveri

When choosing between GeForce GT 640M and Radeon R7 512 Cores Kaveri, 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 640M and Radeon R7 512 Cores Kaveri.

GeForce GT 640M Check Price

Radeon R7 512 Cores Kaveri

GeForce GT 640M is a Laptop Graphics Card

Note: GeForce GT 640M 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 640M here:

GeForce GT 640M Laptops

Main Specs

	GeForce GT 640M	Radeon R7 512 Cores Kaveri
Power consumption (TDP)	32 Watt
Interface	PCIe 3.0 x16
Memory type	DDR3\GDDR5
Maximum RAM amount	2 GB
Display Connectors	No outputs
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GeForce GT 640M is used in Laptops, and Radeon R7 512 Cores Kaveri - in Desktops.
GeForce GT 640M is build with Kepler architecture, and Radeon R7 512 Cores Kaveri - with GCN.
GeForce GT 640M and Radeon R7 512 Cores Kaveri are manufactured by 28 nm process technology.

Game benchmarks


high / 1080p	0−1	7−8
ultra / 1080p	0−1	4−5
QHD / 1440p	0−1	0−1
low / 720p	10−12	18−20
medium / 1080p	2−3	9−10
The average gaming FPS of Radeon R7 512 Cores Kaveri in Assassin's Creed Odyssey is 133% more, than GeForce GT 640M.
high / 1080p	−	12−14
ultra / 1080p	3−4	10−12
QHD / 1440p	0−1	0−1
low / 720p	12−14	27−30
medium / 1080p	4−5	14−16
The average gaming FPS of Radeon R7 512 Cores Kaveri in Battlefield 5 is 157% more, than GeForce GT 640M.
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 640M in Call of Duty: Warzone is 6% more, than Radeon R7 512 Cores Kaveri.
low / 768p	110−120	140−150
medium / 768p	85−90	110−120
ultra / 1080p	35−40	55−60
QHD / 1440p	−	30−35
4K / 2160p	10−11	27−30
high / 768p	55−60	85−90
The average gaming FPS of Radeon R7 512 Cores Kaveri in Counter-Strike: Global Offensive is 40% more, than GeForce GT 640M.
low / 768p	70−75	55−60
ultra / 1080p	12−14	21−24
medium / 1080p	45−50	45−50
The average gaming FPS of GeForce GT 640M in Cyberpunk 2077 is 4% more, than Radeon R7 512 Cores Kaveri.
low / 768p	70−75	85−90
medium / 768p	40−45	60−65
ultra / 1080p	18−20	35−40
The average gaming FPS of Radeon R7 512 Cores Kaveri in Dota 2 is 40% more, than GeForce GT 640M.
high / 1080p	2−3	9−10
ultra / 1080p	2−3	8−9
4K / 2160p	0−1	4−5
low / 720p	9−10	21−24
medium / 1080p	3−4	10−11
The average gaming FPS of Radeon R7 512 Cores Kaveri in Far Cry 5 is 200% more, than GeForce GT 640M.
high / 1080p	−	16−18
ultra / 1080p	5−6	10−12
QHD / 1440p	1−2	−
low / 720p	45−50	65−70
medium / 1080p	7−8	24−27
The average gaming FPS of Radeon R7 512 Cores Kaveri in Fortnite is 70% more, than GeForce GT 640M.
high / 1080p	2−3	14−16
ultra / 1080p	−	12−14
QHD / 1440p	0−1	2−3
low / 720p	14−16	27−30
medium / 1080p	5−6	14−16
The average gaming FPS of Radeon R7 512 Cores Kaveri in Forza Horizon 4 is 171% more, than GeForce GT 640M.
low / 768p	40−45	55−60
medium / 768p	−	50−55
high / 1080p	3−4	14−16
ultra / 1080p	2−3	7−8
QHD / 1440p	0−1	0−1
medium / 720p	30−35	−
The average gaming FPS of Radeon R7 512 Cores Kaveri in Grand Theft Auto V is 62% more, than GeForce GT 640M.
high / 1080p	1−2	5−6
ultra / 1080p	0−1	3−4
4K / 2160p	0−1	0−1
low / 720p	2−3	14−16
medium / 1080p	2−3	7−8
The average gaming FPS of Radeon R7 512 Cores Kaveri in Metro Exodus is 350% more, than GeForce GT 640M.
low / 768p	85−90	95−100
high / 1080p	55−60	90−95
ultra / 1080p	−	80−85
medium / 1080p	−	95−100
The average gaming FPS of Radeon R7 512 Cores Kaveri in Minecraft is 31% more, than GeForce GT 640M.
high / 1080p	14−16	16−18
ultra / 1080p	12−14	14−16
low / 720p	24−27	35−40
medium / 1080p	14−16	18−20
The average gaming FPS of Radeon R7 512 Cores Kaveri in PLAYERUNKNOWN'S BATTLEGROUNDS is 29% more, than GeForce GT 640M.
ultra / 1080p	3−4	8−9
QHD / 1440p	0−1	0−1
low / 720p	3−4	14−16
medium / 1080p	−	10−12
The average gaming FPS of Radeon R7 512 Cores Kaveri in Red Dead Redemption 2 is 266% more, than GeForce GT 640M.
low / 768p	7−8	27−30
medium / 768p	6−7	18−20
high / 1080p	3−4	10−11
ultra / 1080p	−	7−8
4K / 2160p	0−1	6−7
The average gaming FPS of Radeon R7 512 Cores Kaveri in The Witcher 3: Wild Hunt is 280% more, than GeForce GT 640M.
low / 768p	70−75	85−90
medium / 768p	35−40	45−50
ultra / 1080p	12−14	21−24
high / 768p	27−30	35−40
The average gaming FPS of Radeon R7 512 Cores Kaveri in World of Tanks is 29% more, than GeForce GT 640M.

Full Specs

	GeForce GT 640M	Radeon R7 512 Cores Kaveri
Architecture	Kepler	GCN
Code name	N13P-GS	Kaveri Spectre
Type	Laptop	Desktop
Release date	22 March 2012	14 January 2014
Pipelines	384	512
Core clock speed		720 MHz
Boost Clock	645 MHz
Transistor count	1,270 million
Manufacturing process technology	28 nm	28 nm
Floating-point performance	480.0 gflops
Memory bus width	128bit
Memory clock speed	1800 - 4000 MHz
Shared memory	-	+
DirectX	12 API	DirectX 12 (FL 12_0), Shader 5.2
Shader Model	5.1
OpenGL	4.5
OpenCL	1.1
Vulkan	1.1.126
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)	18 Mh/s
Laptop size	medium sized
Optimus	+
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GeForce GT 640M vs Radeon R7 512 Cores Kaveri

GeForce GT 640M is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

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