AMD, which announced its Ryzen Threadripper HEDT processor at its 2017 Computex show, closely followed by certain motherboard manufacturers' unveiling of their compatible AMD X399 chipset motherboards; is readying nine SKUs based on the dual "Summit Ridge" MCM. This includes 10-core (3+2+3+2), 12-core (3+3+3+3), 14-core (4+3+4+3), and 16-core (4+4+4+4) models, all of which have SMT enabled, resulting in 20, 24, 28, and 32 threads, respectively; full 64-lane PCI-Express gen 3.0 root-complexes; and full quad-channel DDR4 memory interfaces. Some of these models with the "X" brand extension feature XFR (extended frequency range), which adds 200 MHz to the boost clock, if the cooling is sufficient.The lineup is led by the 16-core/32-thread Ryzen Threadripper 1998X, with a healthy clock speed of 3.50 GHz, and 3.90 GHz boost, a TDP of 155W, and XFR. This is closely followed by the 16-core/32-thread 1998, clocked lower, at 3.20 GHz with 3.60 GHz boost, 155W TDP, and lack of XFR. The 16-core chips are followed by 14-core models. The 14-core/28-thread Ryzen Threadripper 1977X ships with 3.50 GHz core clock speed, but 4.00 GHz boost, XFR, and the same 155W TDP as the 16-core parts. This is closely followed by the 14-core/28-thread 1977 (non-X), with lower clocks of 3.20 GHz core, 3.70 GHz boost, and again, the same 155W TDP.AMD could trounce Intel's HEDT lineup in terms of TDP from its 12-core lineup and below. The 12-core/24-thread Ryzen Threadripper 1976X ships with a staggering 3.60 GHz core, and 4.10 GHz boost, XFR, and "only" 125W TDP. In comparison, everything 6-core thru 10-core in Intel's Skylake-X HEDT lineup is 140W. The next 12-core/24-thread Threadripper part is the 1956X with 3.20 GHz core, 3.80 GHz boost, XFR, and 125W TDP. Its smaller sibling, the 1956 (non-X), ships with 3.00 GHz core, 3.70 GHz boost, and no XFR, but the same 125W TDP.We now move on to AMD's 10-core/20-thread lineup. The Ryzen Threadripper 1955X ships with 3.60 GHz core and 4.00 GHz boost, and XFR adding further to the boost clock. The 1955 (non-X) will be the cheapest Threadripper you can buy. This 10-core/20-thread chip is clocked at 3.10 GHz, with 3.70 GHz boost. Both 10-core parts have their TDP rated at 125W.The company didn't disclose cache structure, or pricing. We expect the 10-core Threadripper models to take on Intel's 4-thru-6-core "Kaby Lake-X" and "Skylake-X" parts; the 12-core Threadripper on Intel's 8-thru-10 core parts, the 14-core Threadripper on Intel's 10-thru-12 core parts; and the 16-core Threadripper, bolstered by its high clock speeds, on Intel's 16-thru-18-core parts.