GeForce GT 640M LE vs Radeon HD 6990M Crossfire

In this comparison between GeForce GT 640M LE and Radeon HD 6990M Crossfire 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 640M LE will be the best choice, for others Radeon HD 6990M Crossfire will be their preference. Study the comparison tables below and make your choice.

GeForce GT 640M LE Check Price

Radeon HD 6990M Crossfire Check Price

GeForce GT 640M LE and Radeon HD 6990M Crossfire are Laptop Graphics Cards

Note: GeForce GT 640M LE and Radeon HD 6990M Crossfire are only used in laptop graphics. They have 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 or Radeon HD 6990M Crossfire here:

GeForce GT 640M LE Laptops

Radeon HD 6990M Crossfire Laptops

Main Specs

	GeForce GT 640M LE	Radeon HD 6990M Crossfire
Power consumption (TDP)	20 Watt
Interface	PCIe 2.0 x16
Memory type	DDR3\DDR5	GDDR5
Maximum RAM amount	2 GB	2x2 GB
Display Connectors	No outputs
	Check Price	Check Price

GeForce GT 640M LE and Radeon HD 6990M Crossfire have maximum RAM of 2 GB.
Both cards are used in Laptops.
GeForce GT 640M LE is build with Fermi / Kepler architecture, and Radeon HD 6990M Crossfire - with Terascale 2.
GeForce GT 640M LE is manufactured by 28 nm process technology, and Radeon HD 6990M Crossfire - by 40 nm process technology.
Memory clock speed of GeForce GT 640M LE is 900 MHz higher, than Radeon HD 6990M Crossfire.

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 6990M Crossfire 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 6990M Crossfire 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 6990M Crossfire 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 6990M Crossfire 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 6990M Crossfire 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 6990M Crossfire 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 6990M Crossfire 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 6990M Crossfire 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 6990M Crossfire 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 6990M Crossfire in World of Tanks is 188% more, than GeForce GT 640M LE.

Full Specs

	GeForce GT 640M LE	Radeon HD 6990M Crossfire
Architecture	Fermi / Kepler	Terascale 2
Code name	N13P-LP	Blackcomb XTX
Type	Laptop	Laptop
Release date	22 March 2012	12 July 2011
Pipelines	384	2240
Core clock speed		715 MHz
Transistor count	585 million	2x1700 Million
Manufacturing process technology	28 nm	40 nm
Floating-point performance	384.0 gflops
Memory bus width	128bit	256 Bit
Memory clock speed	1800 - 4000 MHz	900 MHz
Shared memory	-	-
DirectX	12 API	DirectX 11, Shader 5.0
Shader Model	5.1
OpenGL	4.5
OpenCL	1.1
Vulkan	N/A
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
Laptop size	medium sized	large
Optimus	+
	Check Price	Check Price

GeForce GT 640M LE vs Radeon HD 6990M Crossfire

GeForce GT 640M LE and Radeon HD 6990M Crossfire are Laptop Graphics Cards

Main Specs

Game benchmarks

Full Specs

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