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8GB AMD R9 300 Series Hawaii GPUs Leaked

Khalid Moammer
Posted May 18, 2015
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The Hawaii GPUs will reportedly make a return in the 300 series. Featuring 8GB of memory as standard and increased core and memory clocks. The final name designated for 300 series based Hawaii cards hasn’t been confirmed yet. But Videocardz.com reports that there will be two Hawaii based cards in the 300 series.

AMD Radeon R9 295X2
One will feature an enhanced version of Hawaii Pro and the other will feature an enhanced version of Hawaii XT.
Currently Hawaii XT powers the R9 290X and Hawaii Pro powers the R9 290. Both updated versions of the GPU will feature increased memory and GPU  clock speeds compared to their R9 290 series predecessors. Both new iterations of the enhanced Hawaii GPU will feature memory speeds of 1500Mhz, a 250Mhz increase over the R9 290X and R9 290. The GPU clock speed for the new Hawaii XT is 1050Mhz, a 50Mhz improvement compared to the R9 290X. While the enhanced Hawaii Pro will feature a GPU clock speed of 1010Mhz, a 63Mhz improvement over the R9 290.

8GB R9 300 Series AMD Hawaii GPUs Leaked

The most interesting piece of information is that Videocardz claims both 300 series Hawaii based graphics cards will feature 8GB of memory as standard. That was not expected, especially since some rumors which were circulating around suggested the possibility that Fiji would debut with 4GB of memory as opposed to 8GB. However if Hawaii based GPUs will feature 8GB of memory as standard then it stands to reason that their higher-end, bigger brother Fiji would feature at least the same amount of memory and not less.

Interestingly, Fiji will most likely not debut under a 300 series name and would instead have a unique brand. That’s because AMD rebranded Tonga , the R9 285, as the R9 380 for OEMs. Which means that when Hawaii, R9 290 series, debuts as the R9 390 series in its “enhanced Hawaii” form this would leave no room for Fiji in the nomenclature. So it remains to be seen how AMD will attempt to solve this dilemma.

GPU Card 200 Series Counterpart GCN Iteration Mem. GPU/Memory Frequency Memory Bandwidth
FIJI AMD Radeon R9 ? 1.2 ? 1050/1000 MHz* 640 GB/s
FIJI AMD Radeon R9 ? 1.2 ? 1000/1000 MHz 640 GB/s
HAWAII AMD Radeon R9 390X?
Radeon R9 290X 1.1 8GB 1050/1500 MHz 384 GB/s
HAWAII AMD Radeon R9 390?
Radeon R9 290 1.1 8GB 1010/1500 MHz 384 GB/s
TONGA AMD Radeon R9 380 Radeon R9 285 1.2 4GB/2GB 970/1425 MHz 182 GB/s
AMD Zen Summit Ridge Processors Rumored For 17th January Launch - Performance on Par With Core i7-6850K at $250-$300 US Pricing

We covered five days ago a report which indicated that the new flagship Radeon based on the Fiji GPU with stacked HBM VRAM will launch on the 24th of June. While other 300 series cards will debut approximately a week prior.
AMD promised that gamers will be able to choose from “multiple” Fiji powered boards with different form factors and cooling. The image you see above is only of those multiple. It features water-cooling and a very small form factor, resembling that of the Nvidia GeForce GTX 750 Ti cards and other mini-itx graphics cards.

AMD GCN HBM High Bandwidth Memory

 WCCFTechAMD Fiji Flagship
AMD Radeon R9 290X
GPU Code NameFiji XTHawaii XT
GPU Cores / Shaders40962816
Memory
4GB Stacked HBM4GB GDDR5
Memory  Frequency1.00Ghz5.0Ghz
Memory Interface4096 Wide IO512bit GDDR5
Total Memory Bandwidth512GB/S320GB/S
GPU  Clock Speed1.05Ghz1Ghz
Compute Performance8.5TFLOPS*5.6TFLOPS
Launch Price$649$549
* Estimated from core count and clock speed.

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