GTX 1660 vs GT 640M LE

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Combined performance score

GT 640M LE
1.79

GTX 1660 outperforms GT 640M LE by 1585% in our combined benchmark results.

General info

GPU architecture, market segment, value for money and other general parameters compared.

Place in performance ranking877170
Place by popularitynot in top-10048
Value for money0.1125.04
ArchitectureFermi / Kepler (2012)Turing (2018−2021)
GPU code nameN13P-LPTuring TU116
Market segmentLaptopDesktop
Release date22 March 2012 (12 years old)14 March 2019 (5 years old)
Launch price (MSRP)$849.99 $219
Current price$310 (0.4x MSRP)$252 (1.2x MSRP)
Value for money

Performance to price ratio. The higher, the better.

GTX 1660 has 22664% better value for money than GT 640M LE.

Technical specs

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores3841408
CUDA coresUp to 384no data
Core clock speedUp to 500 MHz1530 MHz
Boost clock speedno data1785 MHz
Number of transistors585 million6,600 million
Manufacturing process technology28 nm12 nm
Power consumption (TDP)20 Watt120 Watt
Texture fill rateUp to 16.0 billion/sec157.1
Floating-point performance384.0 gflopsno data

Size and compatibility

Information on GeForce GT 640M LE and GeForce GTX 1660 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Laptop sizemedium sizedno data
Bus supportPCI Express 2.0, PCI Express 3.0no data
InterfacePCIe 2.0 x16PCIe 3.0 x16
Lengthno data229 mm
Widthno data2-slot
Supplementary power connectorsno data1x 8-pin

Memory

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeDDR3\DDR5GDDR5
Maximum RAM amount2 GB6 GB
Memory bus width128bit192 Bit
Memory clock speed1800 - 4000 MHz8000 MHz
Memory bandwidthUp to 28.8 GB/s192.1 GB/s
Shared memory--

Video outputs and ports

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display ConnectorsNo outputs1x DVI, 1x HDMI, 1x DisplayPort
HDMI++
HDCP+no data
Maximum VGA resolutionUp to 2048x1536no data

Technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

3D Blu-Ray+no data
Optimus+no data

API support

List of supported graphics and general-purpose computing APIs, including their specific versions.

DirectX12 API12 (12_1)
Shader Model5.16.5
OpenGL4.54.6
OpenCL1.11.2
VulkanN/A1.2.131
CUDA+7.5

Synthetic benchmark performance

Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.


Combined synthetic benchmark score

This is our combined benchmark performance score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

GT 640M LE 1.79
GTX 1660 30.17
+1585%

GTX 1660 outperforms GT 640M LE by 1585% in our combined benchmark results.


Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

Benchmark coverage: 25%

GT 640M LE 692
GTX 1660 11692
+1590%

GTX 1660 outperforms GT 640M LE by 1590% in Passmark.

3DMark Vantage Performance

3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.

Benchmark coverage: 17%

GT 640M LE 5788
GTX 1660 71229
+1131%

GTX 1660 outperforms GT 640M LE by 1131% in 3DMark Vantage Performance.

3DMark 11 Performance GPU

3DMark 11 is an obsolete DirectX 11 benchmark by Futuremark. It used four tests based on two scenes, one being few submarines exploring the submerged wreck of a sunken ship, the other is an abandoned temple deep in the jungle. All the tests are heavy with volumetric lighting and tessellation, and despite being done in 1280x720 resolution, are relatively taxing. Discontinued in January 2020, 3DMark 11 is now superseded by Time Spy.

Benchmark coverage: 17%

GT 640M LE 1259
GTX 1660 21131
+1578%

GTX 1660 outperforms GT 640M LE by 1578% in 3DMark 11 Performance GPU.

GeekBench 5 OpenCL

Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses OpenCL API by Khronos Group.

Benchmark coverage: 9%

GT 640M LE 2176
GTX 1660 57413
+2538%

GTX 1660 outperforms GT 640M LE by 2538% in GeekBench 5 OpenCL.

GeekBench 5 Vulkan

Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses Vulkan API by AMD & Khronos Group.

Benchmark coverage: 5%

GT 640M LE 2240
GTX 1660 55668
+2385%

GTX 1660 outperforms GT 640M LE by 2385% in GeekBench 5 Vulkan.

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

900p19
−1479%
300−350
+1479%
Full HD21
−310%
86
+310%
1440p2−3
−2300%
48
+2300%
4K1−2
−2700%
28
+2700%

Performance in popular games

Full HD
Low Preset

Cyberpunk 2077 4−5
−1675%
71
+1675%

Full HD
Medium Preset

Assassin's Creed Odyssey 1−2
−5600%
55−60
+5600%
Battlefield 5 2−3
−4600%
90−95
+4600%
Call of Duty: Modern Warfare 10−11
−1020%
112
+1020%
Cyberpunk 2077 4−5
−1350%
58
+1350%
Far Cry 5 1−2
−9900%
100
+9900%
Far Cry New Dawn 0−1 95
Forza Horizon 4 3−4
−4300%
132
+4300%
Hitman 3 3−4
−3567%
110
+3567%
Horizon Zero Dawn 2−3
−4000%
82
+4000%
Red Dead Redemption 2 4−5
−1725%
73
+1725%
Shadow of the Tomb Raider 8−9
−1063%
93
+1063%

Full HD
High Preset

Assassin's Creed Odyssey 1−2
−5600%
55−60
+5600%
Battlefield 5 2−3
−4600%
90−95
+4600%
Call of Duty: Modern Warfare 10−11
−750%
85
+750%
Cyberpunk 2077 4−5
−1075%
47
+1075%
Far Cry 5 1−2
−9100%
92
+9100%
Far Cry New Dawn 0−1 89
Forza Horizon 4 3−4
−4000%
123
+4000%
Hitman 3 3−4
−2900%
90
+2900%
Horizon Zero Dawn 2−3
−2950%
61
+2950%
Metro Exodus 2−3
−2750%
57
+2750%
Red Dead Redemption 2 4−5
−900%
40
+900%
Shadow of the Tomb Raider 8−9
−875%
78
+875%
The Witcher 3: Wild Hunt 5−6
−1940%
102
+1940%

Full HD
Ultra Preset

Assassin's Creed Odyssey 1−2
−5600%
55−60
+5600%
Battlefield 5 2−3
−4600%
90−95
+4600%
Cyberpunk 2077 4−5
−900%
40
+900%
Far Cry 5 1−2
−8500%
86
+8500%
Far Cry New Dawn 0−1 82
Forza Horizon 4 3−4
−3167%
98
+3167%
The Witcher 3: Wild Hunt 5−6
−1040%
57
+1040%

1440p
High Preset

Call of Duty: Modern Warfare 4−5
−1325%
57
+1325%
Hitman 3 4−5
−1325%
57
+1325%
Horizon Zero Dawn 9−10
−344%
40
+344%
Metro Exodus 0−1 33
Red Dead Redemption 2 0−1 25
Shadow of the Tomb Raider 5−6
−860%
48
+860%

1440p
Ultra Preset

Cyberpunk 2077 1−2
−2300%
24
+2300%
Far Cry 5 3−4
−1867%
59
+1867%
The Witcher 3: Wild Hunt 2−3
−1850%
35−40
+1850%

4K
High Preset

Call of Duty: Modern Warfare 2−3
−1500%
32
+1500%
Hitman 3 2−3
−1450%
31
+1450%
Horizon Zero Dawn 8−9
−37.5%
11
+37.5%
Red Dead Redemption 2 0−1 16−18

4K
Ultra Preset

Assassin's Creed Odyssey 1−2
−1900%
20−22
+1900%
Assassin's Creed Valhalla 0−1 15
Far Cry 5 3−4
−900%
30
+900%
Far Cry New Dawn 5−6
−520%
31
+520%

This is how GT 640M LE and GTX 1660 compete in popular games:

900p resolution:

  • GTX 1660 is 1479% faster than GT 640M LE

1080p resolution:

  • GTX 1660 is 310% faster than GT 640M LE

1440p resolution:

  • GTX 1660 is 2300% faster than GT 640M LE

4K resolution:

  • GTX 1660 is 2700% faster than GT 640M LE

Here's the range of performance differences observed across popular games:

  • in Far Cry 5, with 1080p resolution and the Medium Preset, the GTX 1660 is 9900% faster than the GT 640M LE.

All in all, in popular games:

  • Without exception, GTX 1660 surpassed GT 640M LE in all 42 of our tests.

Advantages and disadvantages


Performance score 1.79 30.17
Recency 22 March 2012 14 March 2019
Cost $849.99 $219
Maximum RAM amount 2 GB 6 GB
Chip lithography 28 nm 12 nm
Power consumption (TDP) 20 Watt 120 Watt

The GeForce GTX 1660 is our recommended choice as it beats the GeForce GT 640M LE in performance tests.

Be aware that GeForce GT 640M LE is a notebook card while GeForce GTX 1660 is a desktop one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

User ratings

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


NVIDIA GeForce GT 640M LE
GeForce GT 640M LE
NVIDIA GeForce GTX 1660
GeForce GTX 1660

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Questions and comments

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