Here is a quick comparison of the number of SNP's tested by the main genomics companies offering ancestry DNA tests.
Company
Autosomal SNP's
Y-DNA SNP's
mtDNA SNP's
Price (USA/EU/UK)
23andMe
577,382
2,329
3,154
99~199$/169€/149£
Geno 2.0
700,000
~20,000
~4,000
180$
Chrono 2.0
290,169...