Performance to price ratio. The higher, the better.
GTX 1660 vs GT 640M LE
Combined performance score
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 ranking | 877 | 170 |
Place by popularity | not in top-100 | 48 |
Value for money | 0.11 | 25.04 |
Architecture | Fermi / Kepler (2012) | Turing (2018−2021) |
GPU code name | N13P-LP | Turing TU116 |
Market segment | Laptop | Desktop |
Release date | 22 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) |
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 cores | 384 | 1408 |
CUDA cores | Up to 384 | no data |
Core clock speed | Up to 500 MHz | 1530 MHz |
Boost clock speed | no data | 1785 MHz |
Number of transistors | 585 million | 6,600 million |
Manufacturing process technology | 28 nm | 12 nm |
Power consumption (TDP) | 20 Watt | 120 Watt |
Texture fill rate | Up to 16.0 billion/sec | 157.1 |
Floating-point performance | 384.0 gflops | no 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 size | medium sized | no data |
Bus support | PCI Express 2.0, PCI Express 3.0 | no data |
Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
Length | no data | 229 mm |
Width | no data | 2-slot |
Supplementary power connectors | no data | 1x 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 type | DDR3\DDR5 | GDDR5 |
Maximum RAM amount | 2 GB | 6 GB |
Memory bus width | 128bit | 192 Bit |
Memory clock speed | 1800 - 4000 MHz | 8000 MHz |
Memory bandwidth | Up to 28.8 GB/s | 192.1 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 Connectors | No outputs | 1x DVI, 1x HDMI, 1x DisplayPort |
HDMI | + | + |
HDCP | + | no data |
Maximum VGA resolution | Up to 2048x1536 | no 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.
DirectX | 12 API | 12 (12_1) |
Shader Model | 5.1 | 6.5 |
OpenGL | 4.5 | 4.6 |
OpenCL | 1.1 | 1.2 |
Vulkan | N/A | 1.2.131 |
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.
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%
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%
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%
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%
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%
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:
900p | 19
−1479%
| 300−350
+1479%
|
Full HD | 21
−310%
| 86
+310%
|
1440p | 2−3
−2300%
| 48
+2300%
|
4K | 1−2
−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.
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