Depends on which PQ u like. Some like the brighter more vibrant colors others see no difference or just dont care. Both r good tvs IMO. Better act on the 70" 632 as it is going to be discontinued by most stores as stock is getting low. I know it goes to closeout status for some stores next week. You might still be able to find it after that but its always risky to gamble. Some stores may even increase the price, don't buy it over $2k.