Red Hawk
Diamond Member
- Jan 1, 2011
- 3,266
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So its basically gonna be a expensive overclocked 280x with 1gb more vram and a 256 bit bus?
Look at the specs of a 280x
http://www.anandtech.com/show/7400/the-radeon-r9-280x-review-feat-asus-xfx
Dam I had high hopes for this card.
Er...what were you expecting, exactly? We've known for a long time that Tonga is pretty much Tahiti with a few retuned parts. Twice the tessellation units and more refined at that, with a 256 bit memory bus and delta color compression on the ROPs to hopefully result in power savings without reducing effective memory bandwidth, and 8 asynchronous compute engines over Tahiti's 2. It also has a full 4 GB, unlike the 285 which was always hamstrung by AMD skimping out with only 2 GB of RAM, and it has DirectX Feature Level 12.0 instead of 11.3.
As far as sheer performance goes, for now it will only show an advantage in geometry-limited use scenarios. Looking forward towards DirectX 12, it's possible that it will enjoy a compute advantage thanks to the extra ACEs (enough to match Hawaii).
Tonga was meant to replace Tahiti in AMD's product stack as a more up-to-date chip, but it's not meant as a replacement for Tahiti owners. Tahiti owners who want more power have Hawaii and Fiji as their options (from AMD).
I agree that this should have been on the market a year ago, and I'm sure AMD would agree too, it's just that supplies were low and supplying Apple took priority. Maybe this is overpriced, we'll have to wait for reviews to get the final word on that. If it is, a price drop is inevitable.