SMT is AMD's version of hyper-threading (HT), or vice versa. Every third-gen Ryzen processor so far features SMT. Here's a breakdown of all six CPUs...
- Ryzen 9 3950X: 16 cores / 32 threads, 3.5GHz to 4.7GHz, 64MB L3 cache, 105W TDP
- Ryzen 9 3900X: 12 cores / 32 threads, 3.8GHz to 4.6GHz, 64MB L3 cache, 105W TDP
- Ryzen 7 3800X: 8 cores / 16 threads, 3.9GHz to 4.5GHz, 32MB L3 cache, 105W TDP
- Ryzen 7 3700X: 8 cores / 16 threads, 3.6GHz to 4.4GHz, 32MB L3 cache, 65W TDP
- Ryzen 5 3600X: 6 cores / 12 threads, 3.8GHz to 4.4GHz, 32MB L3 cache, 95W TDP
- Ryzen 5 3600: 6 cores, 12 threads, 3.6GHz to 4.2GHz, 32MB L3 cache, 65W TDP
Now here's where things get interesting. Prominent leaker APISAK posted to Twitter what are supposedly leaked specs of a Ryzen 5 3500 CPU. According to APISAK, it is a 6-core/6-thread processor with a 3.6GHz base clock and 4.1GHz boost clock.
If true, the lack of SMT support would hurt performance in some scenarios, though we're still looking at a chip with 6 physical cores to throw at workloads, with relatively healthy clocks (same base clock as the Ryzen 5 3600 and just 100MHz slower on the boost clock).
We would expect the Ryzen 5 3500 to be sandwiched somewhere in between those parts, perhaps in the $169 to $179 range. Any higher and it wouldn't make much sense to pick the Ryzen 5 3500 over the Ryzen 5 3600.
Of course, the new SKU and accompanying specs and performance have not been confirmed. APISAK has been pretty reliable in the past, but as things stand, this is still an unconfirmed leak.