In reference form both cards are rumored to sit below the $100 price point, but the Sapphire versions we're looking at today will indeed carry a slightly higher price tag due to the coolers. Because we don't know exact pricing, we're not sure if the below $100 tag will stay on the Sapphire HD 6670. If the MSRP on a reference one is $99, the chances are the Sapphire version with this cooler could carry a price tag of somewhere around $105.
Considering the HD 6790 can be had for $149 US, the under $100 price makes a lot of sense. Looking at the performance between the HD 6670 and HD 6790, though, and the $50 price difference, it's clear there's some room for another model to come in at around the $119 - $129 mark. A card in that area would offer playable numbers at 1680 x 1050 on most games, especially with a slight detail drop. Of course, there would be games that just wouldn't play nice like Lost Planet 2 and Aliens vs. Predator.
Really, the performance of these models isn't too bad; the HD 6670 especially, which does offer some playable numbers in games at 1680 x 1050. An average of 55 FPS under H.A.W.X. 2 is impressive and while we'd probably prefer to see a slightly higher average, many will probably find the game playable with the very high image settings. The good news is you've got so much room to move when it comes to in game detail, meaning you shouldn't have an issue getting the FPS to a point you're happy with.
While on the top of 60 FPS, it's important to know what we mean by this. So often you will hear things like "The eyes can't see the difference above 30 FPS." If this was true gaming on a 60 Hz monitor at 60 FPS would feel exactly the same as gaming on a 120 Hz monitor at 120 FPS. It doesn't, though; gamers will find the 120 FPS / 120 Hz setup smoother. The difference between 30 FPS to 60 FPS is more noticeable than 60 FPS to 120 FPS, but a difference can be seen.
When we aim for an average of 60 FPS, though, it's not so much because we need to always be seeing 60 FPS, but more so the fact that a game with an average of 60 FPS carries with it a minimum greater than 30 FPS. If we can avoid dipping below 30 FPS our gaming experience is considered very playable. While we can indeed game at 30 FPS, an average of 30 FPS would mean we're seeing dips well below 30 FPS and that means our game won't run as smooth. We can easily see the difference between 15 FPS and 30 FPS and this is the reason we aim for that 60 FPS mark.
The HD 6670 and HD 6570 is painfully slow and benchmarking is like nails on a chalkboard
..when compared to the HD 6800s, HD 6900s and other high end cards. The thing is, though, when you really ignore what $250+ cards bring to the table, these cards do offer some good performance and some playable numbers.
Like we say so often with these low end models, though, you've got to make sure you don't get tricked into a DDR3 version of the HD 6570. Don't let someone tell you that a 1GB GDDR3 is faster than a 512MB GDDR5. It's not! The cards we're looking at today, though, which are at the top of the pyramid when it comes to these models do offer some good performance, but more importantly some playable numbers in some very modern games. Worst case, a small detail drop might be needed in some scenarios at 1680 x 1050. Of course, if you game even lower than that you might be able to play with higher in-game settings.
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