Comparison - Both have have 2 cores with hypthreading for 4 logical cores. Neither are capable of Turbo Boosting.
6100 - 3.7ghz, 3mb cache
6300t - 3.3ghz, 4mb cache
6100 - currently $125 - MSRP $117/$117 BOX/TRAY
6300 - currently not sold - MSRP $147/$138 BOX/TRAY
According to Intel Data Sheet Thermal Test
6100 (PCG 2015c proccessor) @ 51w - ~64C
6300t (PCG 2015a proccessor) @ 35w - ~58C
http://cpuboss.com/cpus/Intel-Core-i3-6300T-vs-Intel-Core-i3-6100
Annual Home Power Cost - $3.86 savings for the 6300T
Conclusion/Opinions: T processors are good for notebooks because they'll draw less battery power. More CPU shoppers are building "Desktops" than notebooks so Intel is probably reserving T-sku's for bulk manufacturing orders. I think when they say MSRP they really just are giving a value gauge (technically that is all MSRP is as well). If you could buy a T-sku at MSRP though, I would still say that $.01 everyday is not significant savings nor is it worth the performance loss.
Bonus: Get a quiet aftermarket cooler if you don't want to hear the stock cooler blowing.
PCPartPicker part list / Price breakdown by merchant
| Type | Item | Price |
|---|---|---|
| CPU Cooler | Cooler Master Hyper TX3 54.8 CFM Sleeve Bearing CPU Cooler | $13.99 @ Newegg |
| CPU Cooler | CRYORIG H7 49.0 CFM CPU Cooler | $34.50 @ Newegg |
| Prices include shipping, taxes, rebates, and discounts | ||
| Total (before mail-in rebates) | $53.49 | |
| Mail-in rebates | -$5.00 | |
| Total | $48.49 | |
| Generated by PCPartPicker 2016-01-27 06:11 EST-0500 |