AMD has two Radeon cards in the R9 series and three in the R7-series was released. It comes to existing cards under a new name with a slightly higher clock speed and lower prices on the market and not about the new Hawa lwa-gpu.
The renamed R9 cards, the R9-280X, R9 270X and R7 260X for the higher segment and the mainstream, which formerly were known as, respectively, the Radeon HD 7970, HD 7870 XT and the HD 7790. The R7 series consists of the R7-250 and -240 for the instapsegment, with performance around that of the Radeon HD 5770. The gpu’s are on 28nm will be produced and AMD’s gcn-architecture based.
AMD has some innovation with the cards. In addition to higher clock speed, there are improvements in PowerTune and the release of the Mantle api, which, however, also to other cards. To continue to support the cards pci-express 3.0, DirectX 11.2 and OpenGL 4.3. Finally, get the R7 260X support for AMD True Audio: programmable dsp’s that the cpu should defecate in audio processing.
In the review of the Tweakers of the R9-280X and 270X to the conclusion that there are few surprises: more interesting is the release of the R9-290X a new gpu, with games that have True Audio support and, with the final release of new drivers.
R9 280XR9 270XR7 260X
Streamprocessors
2048
1280
896
Clock frequency (max.)
1GHz
To 1.05 GHz
1,1 GHz
Computing power
4,1 Tflops
2,69 Tflops
1.97 in Tflops
Memory
3GB
2GB or 4GB
2GB
Memory bus
384bit
256bit
128bit
Memory speed (effective)
6Gbit/s
5,6 Gbit/s
6,5 Gbit/s
Power supply
1x 6-pin +
1x 8-pin
2x 6-pin
1x 6-pin
Tdp
250W
180W
115W
AMD TrueAudio
no
no
yes
Price (usd)
299
2GB: 199
4GB: 229
139
R7 250R7 240
Streamprocessors
384
320
Clock frequency (max.)
To 1.05 GHz
780MHz
Computing power
806Gflops
499Gflops
Memory
1GB gddr5 or 2GB ddr3
1GB gddr5 or 2GB ddr3
Memory bus
128bit
128bit
Memory speed (effective)
To 4.6 Gbit/s
To 4.6 Gbit/s
Tdp
65W
30W
AMD TrueAudio
no
no
Price (usd)
89
unknown