Trying to decide which Razer Blade 15 I should get?

I want to get a razer blade 15 as my first gaming laptop and have been trying to decide which model I should get. I know for sure I want an RTX graphics card, my main issue is trying to determine if there is a huge difference between the 9th gen i7-9750 and the 8th gen i7-8750. Can anyone let me know which model between the two would be better for work/gaming please? The 2 models in question are:

Model: Razer Blade 15 - Base Model
Processor: 9th Gen Intel Core i7-9750H 6 Core (2.6GHz/4.5GHz)
Graphics: NVIDIA GeForce RTX 2060 (6GB GDDR6 VRAM)
Display: 15.6" Full HD 144Hz, 100% sRGB, 4.9mm bezel, factory calibrated
Storage: 512GB SSD (NVMe) + empty 2.5" (SATA, 7mm max. thickness)
Memory: 16GB Dual-Channel (8GB x 2) DDR4 2667MHz
Battery: 65Wh
Keyboard: Single-zone RGB powered by Razer Chroma
Gigabit Ethernet: Yes

Model: Razer Blade 15 - Advanced Model
OS: Windows 10 Home (64-bit)
Processor: 8th Gen Intel Core i7-8750H 6 Core (2.2GHz/4.1GHz)
Graphics: NVIDIA GeForce RTX 2070 with Max-Q Design (8GB GDDR6 VRAM)
Display: 15.6" Full HD 144Hz, 100% sRGB, 4.9mm bezel, factory calibrated
Storage: 256GB SSD (NVMe)
Memory: 16GB Dual-Channel (8GB x 2) DDR4 2667MHz
Battery: Up to 6 hours (80Wh)
Keyboard: Per-key RGB powered by Razer Chroma
Gigabit Ethernet: Not available