AMD Ryzen™ 7 3700X
Gigabyte A520M DS3H Wifi Motherboard
<- bad mobo for this CPU. All you're getting then is a 8-core CPU with no PBO. PBO is amazing for unlocked processors. If you want this Mobo with an 8-core CPU, I'd rather get the 4750G which is locked anyway and has onboard Radeon Vega graphics.
AFTERSHOCK M-40 Frost Air Cooling
16GB 3600mhz DDR4 (8x2)
ZOTAC RTX 3070 TWIN EDGE OC 8GB
512GB Samsung NVMe M.2 SSD R: 3500 W 2900
FSP 650W 80Plus *Bronze Certified* PSU
On-Board Wi-Fi & Bluetooth Included
6x Addressable RGB Fans
RAPID High Airflow Mesh Chassis*
2040
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AMD Ryzen™ 5 5600X
GIGABYTE B550M DS3H Motherboard
Zoomflow 240xt Watercooling
16GB 3600mhz DDR4 (8x2)
ZOTAC RTX 3070 TWIN EDGE OC 8GB
1TB GIGABYTE AORUS GEN4 PCIE SSD (R 5000 W 4400)
FSP 650W 80Plus *Bronze Certified* PSU
INTEL AX200 Wireless WIFI6 + Bluetooth
6x Addressable ARGB fans
RAPID High Airflow Mesh Chassis
2415
<- I guess it's okay. A bit on the higher side but you chose a 1TB Gen4 SSD and 3600MHz RAM so.
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AMD Ryzen™ 7 5800X
GIGAYBTE B550 GAMING X Motherboard
ZOOMFLOW 240XT Watercooling
16GB 3600mhz DDR4 (8x2)
GIGABYTE RTX 3070 Eagle OC 8GB
1TB AFTERSHOCK GEN4 PRO Ultrafast SSD (NEW! E18 based) (R 7000 W 5300)
FSP 650W 80Plus *Bronze Certified* PSU
AX Wireless WIFI6 + Bluetooth Included
6x Addressable ARGB fans
ZEAL AIR Mesh Chassis
2635
<- for $200 over the second option, I'd rather get this. The CPU itself already worth the extra $200, mobo also better, SSD better. GPU wise I'm not sure but my impression is GB Eagle OC is similar quality to Zotac Twin Edge OC
Overall again I don't like the bronze PSU lol. But if you're not running it for extended hours, I guess it's fine. 650W will do fine for 3070 but won't give much room for upgrading the GPU in the future. This will probably a build that ends in the same config as it begins.