If they can get the spec not different from the higher end model it will be good.
I'm thinking 7-8tflop for low end and 12tflop for high end.
It can't be to big a gap because if devs choose to really push graphics at 1440p or 4kcb the lower end should have to be 1080p.
If the low end was 6tflops or less you might be getting 900p or even 720p resolutions further down the line.
But I think 2 price points is the best.
Have a
7.4tflop gpu
Zen2 8 core 2.8ghz
16gb gddr6 4gb ddr4
1tb HDD
Possibly digital only
$299
12tflop gpu
Zen 2 8 core 2.8ghz
16gb gddr6 4gb ddr4
1tb ssd
4k UHD bld
$499
The lower end (and possibly more popular) model missing SSD would mean that only 1st party studios utilized the SSD fully on the higher end model. That would make it pretty pointless.