GeForce GT 640M LE vs GeForce GTX 850M

If you are going to buy a new graphics card and are choosing between GeForce GT 640M LE and GeForce GTX 850M, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GT 640M LE stacks up against GeForce GTX 850M, check out specs charts below.

GeForce GT 640M LE Check Price

GeForce GTX 850M Check Price

GeForce GT 640M LE and GeForce GTX 850M are Laptop Graphics Cards

Note: GeForce GT 640M LE and GeForce GTX 850M 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 GeForce GTX 850M here:

GeForce GT 640M LE Laptops

GeForce GTX 850M Laptops

Main Specs

	GeForce GT 640M LE	GeForce GTX 850M
Power consumption (TDP)	20 Watt	45 Watt
Interface	PCIe 2.0 x16	PCIe 3.0 x16
Memory type	DDR3\DDR5	DDR3, GDDR5
Maximum RAM amount	2 GB	4 GB
Display Connectors	No outputs	No outputs
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GeForce GTX 850M has 125% more power consumption, than GeForce GT 640M LE.
GeForce GT 640M LE is connected by PCIe 2.0 x16, and GeForce GTX 850M uses PCIe 3.0 x16 interface.
GeForce GTX 850M has 2 GB more memory, than GeForce GT 640M LE.
Both cards are used in Laptops.
GeForce GT 640M LE is build with Fermi / Kepler architecture, and GeForce GTX 850M - with Maxwell.
GeForce GT 640M LE and GeForce GTX 850M are manufactured by 28 nm process technology.

Game benchmarks


high / 1080p	0−1	12−14
ultra / 1080p	−	8−9
QHD / 1440p	0−1	2−3
low / 720p	1−2	27−30
medium / 1080p	0−1	16−18
The average gaming FPS of GeForce GTX 850M in Assassin's Creed Odyssey is 2700% more, than GeForce GT 640M LE.
high / 1080p	−	21−24
ultra / 1080p	−	18−20
QHD / 1440p	0−1	4−5
4K / 2160p	−	4−5
low / 720p	0−1	45−50
medium / 1080p	−	21−24
low / 768p	50−55	45−50
high / 1080p	45−50	−
QHD / 1440p	0−1	0−1
The average gaming FPS of GeForce GT 640M LE in Call of Duty: Warzone is 10% more, than GeForce GTX 850M.
low / 768p	60−65	190−200
medium / 768p	27−30	160−170
ultra / 1080p	7−8	85−90
QHD / 1440p	−	50−55
4K / 2160p	−	30−33
high / 768p	16−18	120−130
The average gaming FPS of GeForce GTX 850M in Counter-Strike: Global Offensive is 410% more, than GeForce GT 640M LE.
low / 768p	70−75	55−60
ultra / 1080p	0−1	35−40
medium / 1080p	45−50	45−50
The average gaming FPS of GeForce GT 640M LE in Cyberpunk 2077 is 15% more, than GeForce GTX 850M.
low / 768p	45−50	100−110
medium / 768p	10−11	85−90
ultra / 1080p	0−1	55−60
The average gaming FPS of GeForce GTX 850M in Dota 2 is 231% more, than GeForce GT 640M LE.
high / 1080p	−	14−16
ultra / 1080p	−	14−16
4K / 2160p	−	5−6
low / 720p	0−1	35−40
medium / 1080p	−	16−18
high / 1080p	−	21−24
ultra / 1080p	−	16−18
QHD / 1440p	−	16−18
low / 720p	21−24	90−95
medium / 1080p	0−1	45−50
The average gaming FPS of GeForce GTX 850M in Fortnite is 318% more, than GeForce GT 640M LE.
high / 1080p	0−1	21−24
ultra / 1080p	−	18−20
QHD / 1440p	0−1	7−8
low / 720p	0−1	45−50
medium / 1080p	0−1	24−27
low / 768p	18−20	75−80
medium / 768p	−	70−75
high / 1080p	0−1	24−27
ultra / 1080p	−	10−12
QHD / 1440p	0−1	1−2
medium / 720p	12−14	−
The average gaming FPS of GeForce GTX 850M in Grand Theft Auto V is 305% more, than GeForce GT 640M LE.
high / 1080p	−	8−9
ultra / 1080p	−	6−7
4K / 2160p	−	2−3
low / 720p	0−1	24−27
medium / 1080p	−	10−12
low / 768p	75−80	100−110
high / 1080p	27−30	−
ultra / 1080p	−	100−110
medium / 1080p	−	100−110
The average gaming FPS of GeForce GTX 850M in Minecraft is 36% more, than GeForce GT 640M LE.
high / 1080p	−	21−24
ultra / 1080p	−	16−18
low / 720p	8−9	50−55
medium / 1080p	−	21−24
The average gaming FPS of GeForce GTX 850M in PLAYERUNKNOWN'S BATTLEGROUNDS is 550% more, than GeForce GT 640M LE.
high / 1080p	−	12−14
ultra / 1080p	−	9−10
QHD / 1440p	−	0−1
low / 720p	0−1	24−27
medium / 1080p	−	14−16
low / 768p	0−1	45−50
medium / 768p	−	30−33
high / 1080p	−	16−18
ultra / 1080p	−	10−11
4K / 2160p	−	7−8
low / 768p	45−50	95−100
medium / 768p	14−16	55−60
ultra / 1080p	0−1	30−35
high / 768p	12−14	50−55
The average gaming FPS of GeForce GTX 850M in World of Tanks is 176% more, than GeForce GT 640M LE.

Full Specs

	GeForce GT 640M LE	GeForce GTX 850M
Architecture	Fermi / Kepler	Maxwell
Code name	N13P-LP	N15P-GT
Type	Laptop	Laptop
Release date	22 March 2012	12 March 2014
Pipelines	384	640
Transistor count	585 million	1,870 million
Manufacturing process technology	28 nm	28 nm
Texture fill rate		36.08
Floating-point performance	384.0 gflops	1,155 gflops
Memory bus width	128bit	128 Bit
Memory clock speed	1800 - 4000 MHz
Memory bandwidth		80.0 GB/s
Shared memory	-	-
DirectX	12 API	12 (11_0)
Shader Model	5.1	5.1
OpenGL	4.5	4.5
OpenCL	1.1	1.1
Vulkan	N/A	1.1.126
CUDA	+	+
CUDA cores	Up to 384	640
Bus support	PCI Express 2.0, PCI Express 3.0	PCI Express 2.0, PCI Express 3.0
SLI options		+
HDMI	+	+
HDCP	+
Maximum VGA resolution	Up to 2048x1536
3D Blu-Ray	+
Bitcoin / BTC (SHA256)	14 Mh/s	153 Mh/s
Laptop size	medium sized	medium sized
Standard memory configuration		DDR3 or GDDR5
eDP 1.2 signal support		Up to 3840x2160
LVDS signal support		Up to 1920x1200
DisplayPort Multimode (DP++) support		Up to 3840x2160
HDCP content protection		+
7.1 channel HD audio on HDMI		+
TrueHD and DTS-HD audio bitstreaming		+
H.264, VC1, MPEG2 1080p video decoder		+
Optimus	+	+
Ethereum / ETH (DaggerHashimoto)		1.8 Mh/s
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GeForce GT 640M LE vs GeForce GTX 850M

GeForce GT 640M LE and GeForce GTX 850M are Laptop Graphics Cards

Main Specs

Game benchmarks

Full Specs

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