MSI GeForce GTX 1660 Gaming X review

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The GPU Specifications

Turing TU116 GPU Specifications

The GPU TU116 for the GeForce GTX 1660 and 1660 Ti contains 6.6 billion transistors localized on the die. In comparison, Pascal had close to 12 billion transistors on a die size of 471mm2. Gamers will immediately look at the shader processors; the Quadro RTX 8000 has 4608 of them enabled and since everything with bits is in multitudes of eight and while looking at the GPU die photos; it has 24 SMs (streaming multiprocessors) each holding 64 cores = 1536 Shader processors. This GPU is fabbed on an optimized 12nm TSMC FinFET+ node and the full GPU is unlocked. Since the GeForce GTX 1660 is using the same chip as the Ti and has 1408 Shader processors we can quickly conclude that 1408/64 the unit has 22 shader clusters. Each shader cluster has four Texture units, so that makes up for 88 of them. 


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GeForceRTX 2080 Ti FERTX 2080 FERTX 2070 FERTX 2060 FEGTX 1660 TiGTX 1660
GPU TU102 TU104 TU106 TU106 TU116 TU116
Node TSMC 12 nm FFN
Die Size mm² 754 545 445
Shader cores 4352 2944 2304 1920 1536 1408
Transistor count 18.6 Billion 13.6 Billion 10.8 Billion 10.8 Billion 6.6 Billion  6.6 Billion 
Base frequency 1350 MHz 1515 MHz 1410 MHz 1365 MHz 1500 MHz 1530MHz
Boost frequency 1635 MHz 1800 MHz 1710 MHz 1680 MHz 1770 MHz 1785 MHz
Memory 11GB GDDR6 8GB GDDR6 8GB GDDR6 6GB GDDR6 6GB GDDR6  6GB GDDR5
Memory frequency 14 Gbps 14 Gbps 14 Gbps 14 Gbps 12 Gbps  8 Gbps
Memory bus 352-bit 256-bit 256-bit 192-bit 192-bit  192-bit
Memory bandwidth 616 GB/s 448 GB/s 448 GB/s 336 GB/s 288 GB/s  192 GB/s
RT cores (x64) 68 46 36 30 -  -
Tensor cores 544 368 288 240 -  -
Texture units 272 184 144 120 96  88
ROPs 96 64 64 48 48  48
TDP 260W 225W 185W 160W 120W  120W
Power connector 2x 8-pin 8+6-pin 8-pin 8-pin 8-pin  8-pin
NVLink Yes Yes - - -  -
Max Therm degree C 89 89 95
price $ 1199 $ 799 $ 599 $ 349 $ 279  $ 219

Next, to a slightly reconfigured shader count, the secondary change for the GTX 1660 is its memory. NVIDIA fits this card series with cheaper GDDR5 memory, which will offer less bandwidth, 192 Gb/sec over 288 GB/s for the Ti model. That difference is substantial and will make the card perform quite a bit slower than the Ti version. Of course, you can always try to tweak the memory bandwidth, which we'll show you in our tweaking segment of this article.

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