Monday, February 9th 2015
Radeon R9 380X Based on "Grenada," a Refined "Hawaii"
AMD's upcoming Radeon R9 380X and R9 380 graphics cards, with which it wants to immediately address the GTX 980 and GTX 970, will be based on a "new" silicon codenamed "Grenada." Built on the 28 nm silicon fab process, Grenada will be a refined variant of "Hawaii," much in the same way as "Curacao" was of "Pitcairn," in the previous generation.
The Grenada silicon will have the same specs as Hawaii - 2,816 GCN stream processors, 176 TMUs, 64 ROPs, and a 512-bit wide GDDR5 memory interface, holding 4 GB memory. Refinements in the silicon over Hawaii could allow AMD to increase clock speeds, to outperform the GTX 980 and GTX 970. We don't expect the chip to be any more energy efficient at its final clocks, than Hawaii. AMD's design focus appears to be performance. AMD could save itself the embarrassment of a loud reference design cooler, by throwing the chip up for quiet custom-design cooling solutions from AIB (add-in board) partners from day-one.
In other news, the "Tonga" silicon, which made its debut with the performance-segment Radeon R9 285, could form the foundation of Radeon R9 370 series, consisting of the R9 370X, and the R9 370. Tonga physically features 2,048 stream processors based on the more advanced GCN 1.3 architecture, 128 TMUs, 32 ROPs, and a 384-bit wide GDDR5 memory interface. Both the R9 370 and R9 370X could feature 3 GB of standard memory amount.
The only truly new silicon with the R9 300 series, is "Fiji." This chip will be designed to drive AMD's high-end single- and dual-GPU graphics cards, and will be built to compete with the GM200 silicon from NVIDIA, and the GeForce GTX TITAN-X it will debut with. This chip features 4,096 stream processors based on the GCN 1.3 architecture - double that of "Tonga," 256 TMUs, 128 ROPs, and a 1024-bit wide HBM memory interface, offering 640 GB/s of memory bandwidth. 4 GB could be the standard memory amount. The three cards AMD will carve out of this silicon, are the R9 390, the R9 390X, and the R9 390X2.
Source:
3DCenter.org
The Grenada silicon will have the same specs as Hawaii - 2,816 GCN stream processors, 176 TMUs, 64 ROPs, and a 512-bit wide GDDR5 memory interface, holding 4 GB memory. Refinements in the silicon over Hawaii could allow AMD to increase clock speeds, to outperform the GTX 980 and GTX 970. We don't expect the chip to be any more energy efficient at its final clocks, than Hawaii. AMD's design focus appears to be performance. AMD could save itself the embarrassment of a loud reference design cooler, by throwing the chip up for quiet custom-design cooling solutions from AIB (add-in board) partners from day-one.
The only truly new silicon with the R9 300 series, is "Fiji." This chip will be designed to drive AMD's high-end single- and dual-GPU graphics cards, and will be built to compete with the GM200 silicon from NVIDIA, and the GeForce GTX TITAN-X it will debut with. This chip features 4,096 stream processors based on the GCN 1.3 architecture - double that of "Tonga," 256 TMUs, 128 ROPs, and a 1024-bit wide HBM memory interface, offering 640 GB/s of memory bandwidth. 4 GB could be the standard memory amount. The three cards AMD will carve out of this silicon, are the R9 390, the R9 390X, and the R9 390X2.
156 Comments on Radeon R9 380X Based on "Grenada," a Refined "Hawaii"
"The only truly new silicon with the R9 300 series, is 'Fiji.'"
Ok.. Nevermind. At least there will be something that's actually new.
"4 GB could be the standard memory amount."
Awful. 6 GB should be the standard for high-end cards going forward.
I wonder what the 16nm and 14nm GPUs will bring. ;)
Rebrand for the lose?
For my FX-6300 I wasn't looking for anything more than performance of GTX 970, but everything is a mixed bag.
yeah it would have been nice to see a 20nm chip. probably could have lowered the power draw anyway but maybe hbm is more efficient and will help out. have not seen anything about the efficiency... really just that its up to 9x faster than ddr5 and should be kick ass for high res and eyefinity.
edit-I have expressed how high clocks may not be the most reliable but if they can make refinements and deliver reliable products then I'm all in for the race to the first 2000mhz gaming gpu :clap:
nvidia uses compression techniques to have a narrow bus.
But, anyway, rumors...
AMD Radeon 300 series speculation: 395X2 "Bermuda", 390X "Fiji" and 380X "Grenada" | VideoCardz.com
AMD's solutions have always shown better behaviour with resolution scaling, i.e losing less performance than nvidia's....Historically, truth is actually the other way round. AMD offered narrow busses with state-of-the-art memory. Like being first with GDDR4, GDDR5, and now HBM.
Hawaii hit the upper performance limit of GDDR5 and that's why it needed a 512-bit MI.
With this news, he is mainly regurgitating stuff from the worst sites out there,
WhatTheFCK-Tech and VideocardsIMakeStuffUp.
Please don't take this "news" to mean anything.
I am really curious about FirePro, just as Boney said, what they will actually do when they need more vram.
We totally lack information really.
And R9-390X will exist after all. Though it kinda sucks that they rebrand last gen high end into current gen mid end. While it is the most economic solution, it's bad for customers. Unless if they plan to price them really well. In that case even rebranded R9-290X might be interesting. Especially if they'll be fully DX12 compatible (they should be afaik).