GeForce GT 640M LE vs Radeon HD 7990

When choosing between GeForce GT 640M LE and Radeon HD 7990, 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 LE and Radeon HD 7990.

GeForce GT 640M LE Check Price

Radeon HD 7990 Check Price

GeForce GT 640M LE is a Laptop Graphics Card

Note: GeForce GT 640M LE 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 LE here:

GeForce GT 640M LE Laptops

Main Specs

	GeForce GT 640M LE	Radeon HD 7990
Power consumption (TDP)	20 Watt	375 Watt
Interface	PCIe 2.0 x16	PCIe 3.0 x16
Supplementary power connectors		2x 8-pin
Memory type	DDR3\DDR5	GDDR5
Maximum RAM amount	2 GB	3 GB
Display Connectors	No outputs	1x DVI, 4x mini-DisplayPort
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Radeon HD 7990 has 1775% more power consumption, than GeForce GT 640M LE.
GeForce GT 640M LE is connected by PCIe 2.0 x16, and Radeon HD 7990 uses PCIe 3.0 x16 interface.
Radeon HD 7990 has 1 GB more memory, than GeForce GT 640M LE.
GeForce GT 640M LE is used in Laptops, and Radeon HD 7990 - in Desktops.
GeForce GT 640M LE is build with Fermi / Kepler architecture, and Radeon HD 7990 - with GCN 1.0.
GeForce GT 640M LE and Radeon HD 7990 are manufactured by 28 nm process technology.
Memory clock speed of Radeon HD 7990 is 4200 MHz higher, than GeForce GT 640M LE.

Game benchmarks


high / 1080p	0−1	35−40
ultra / 1080p	−	21−24
QHD / 1440p	0−1	16−18
4K / 2160p	−	10−11
low / 720p	1−2	60−65
medium / 1080p	0−1	40−45
The average gaming FPS of Radeon HD 7990 in Assassin's Creed Odyssey is 6100% more, than GeForce GT 640M LE.
high / 1080p	−	55−60
ultra / 1080p	−	45−50
QHD / 1440p	0−1	35−40
4K / 2160p	−	18−20
low / 720p	0−1	100−110
medium / 1080p	−	60−65
low / 768p	50−55	50−55
high / 1080p	45−50	−
QHD / 1440p	0−1	0−1
GeForce GT 640M LE and Radeon HD 7990 have the same average FPS in Call of Duty: Warzone.
low / 768p	60−65	250−260
medium / 768p	27−30	220−230
ultra / 1080p	7−8	180−190
QHD / 1440p	−	110−120
4K / 2160p	−	70−75
high / 768p	16−18	210−220
The average gaming FPS of Radeon HD 7990 in Counter-Strike: Global Offensive is 685% more, than GeForce GT 640M LE.
low / 768p	70−75	60−65
ultra / 1080p	0−1	−
medium / 1080p	45−50	55−60
GeForce GT 640M LE and Radeon HD 7990 have the same average FPS in Cyberpunk 2077.
low / 768p	45−50	120−130
medium / 768p	10−11	110−120
ultra / 1080p	0−1	100−110
The average gaming FPS of Radeon HD 7990 in Dota 2 is 313% more, than GeForce GT 640M LE.
high / 1080p	−	45−50
ultra / 1080p	−	40−45
QHD / 1440p	−	27−30
4K / 2160p	−	14−16
low / 720p	0−1	80−85
medium / 1080p	−	45−50
high / 1080p	−	60−65
ultra / 1080p	−	45−50
QHD / 1440p	−	27−30
4K / 2160p	−	27−30
low / 720p	21−24	180−190
medium / 1080p	0−1	110−120
The average gaming FPS of Radeon HD 7990 in Fortnite is 740% more, than GeForce GT 640M LE.
high / 1080p	0−1	60−65
ultra / 1080p	−	45−50
QHD / 1440p	0−1	30−35
4K / 2160p	−	24−27
low / 720p	0−1	100−110
medium / 1080p	0−1	65−70
low / 768p	18−20	140−150
medium / 768p	−	120−130
high / 1080p	0−1	70−75
ultra / 1080p	−	30−35
QHD / 1440p	0−1	21−24
medium / 720p	12−14	−
The average gaming FPS of Radeon HD 7990 in Grand Theft Auto V is 663% more, than GeForce GT 640M LE.
high / 1080p	−	24−27
ultra / 1080p	−	20−22
QHD / 1440p	−	16−18
4K / 2160p	−	8−9
low / 720p	0−1	65−70
medium / 1080p	−	30−35
low / 768p	75−80	130−140
high / 1080p	27−30	−
medium / 1080p	−	120−130
The average gaming FPS of Radeon HD 7990 in Minecraft is 75% more, than GeForce GT 640M LE.
ultra / 1080p	−	14−16
low / 720p	8−9	100−110
medium / 1080p	−	18−20
The average gaming FPS of Radeon HD 7990 in PLAYERUNKNOWN'S BATTLEGROUNDS is 1212% more, than GeForce GT 640M LE.
high / 1080p	−	24−27
ultra / 1080p	−	16−18
QHD / 1440p	−	10−11
4K / 2160p	−	7−8
low / 720p	0−1	65−70
medium / 1080p	−	35−40
low / 768p	0−1	130−140
medium / 768p	−	85−90
high / 1080p	−	45−50
ultra / 1080p	−	24−27
4K / 2160p	−	16−18
low / 768p	45−50	90−95
medium / 768p	14−16	60−65
ultra / 1080p	0−1	50−55
high / 768p	12−14	60−65
The average gaming FPS of Radeon HD 7990 in World of Tanks is 188% more, than GeForce GT 640M LE.

Full Specs

	GeForce GT 640M LE	Radeon HD 7990
Architecture	Fermi / Kepler	GCN 1.0
Code name	N13P-LP	Malta
Type	Laptop	Desktop
Release date	22 March 2012	24 April 2013
Pipelines	384	2048
Core clock speed		950 MHz
Boost Clock		1000 MHz
Transistor count	585 million	4,313 million
Manufacturing process technology	28 nm	28 nm
Texture fill rate		128.0
Floating-point performance	384.0 gflops	2x 4,096 gflops
Length		307 mm
Memory bus width	128bit	384 Bit
Memory clock speed	1800 - 4000 MHz	6000 MHz
Memory bandwidth		288.0 GB/s
Shared memory	-
DirectX	12 API	12 (11_1)
Shader Model	5.1	5.1
OpenGL	4.5	4.6
OpenCL	1.1	1.2
Vulkan	N/A	1.2.131
CUDA	+
CUDA cores	Up to 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)	14 Mh/s	459 Mh/s
Laptop size	medium sized
Optimus	+
Ethereum / ETH (DaggerHashimoto)		44 Mh/s
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GeForce GT 640M LE vs Radeon HD 7990

GeForce GT 640M LE is a Laptop Graphics Card

Main Specs

Game benchmarks

Full Specs

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