I'm looking to purchase a new graphics card, specifically a card from Nvidia. I could purchase the Gigabyte 2070 super gaming oc for about £500 which has a lower boost clock than the ASUS ROG STRIX 2070s OC but is about £120 cheaper. However, ASUS is currently running a 'trade in' program ( https://asustradeup.com/gb/en/pages/graphicscard/home ) which means I could trade in my old GTX 970 for £105 (which is about twice what it would fetch on ebay). So would the strix be worth the extra effort of sending in my old card or would I be able to achieve similar results with an overclock to the Gigabyte card?
Gigabyte: https://www.overclockers.co.uk/gigabyte-geforce-rtx-2070-super-gaming-oc-8192mb-gddr6-pci-express-graphics-card-gx-1b5-gi.html
ASUS: https://www.scan.co.uk/products/asus-geforce-rtx-2070-super-rog-strix-oc-8gb-gddr6-ray-tracing-graphics-card-2560-core-1605mhz-gpu-1