AMD Could Already Have A Radeon R9 290X Successor - Hawaii XT Also Not Full Chip, Planning To Tackle GeForce GTX 780 Ti

Reports from Overclockers.Co.United kingdom have emerged which seem to point that successor of AMD's flagship Radeon R9 290X graphics bill of fare might possibly in-development. The new graphics card is existence positioned to tackle NVIDIA GeForce GTX 780 Ti which however holds the single-chip performance crown whereas the dual-bit throne is held past AMD's Radeon R9 295X2. AMD Radeon R9 290X Successor Hawaii XTX

Image Credits: TechSpot

AMD Could Already Have A Radeon R9 290X "Hawaii XT" GPU Successor

In comments posted past overclocker 8Pack over at OCUK forums which were spotted by Videocardz, the user tells that the Radeon R9 290X successor is definitely on the mode. Surprisingly, if you lot take a closer expect at the comment, 8Pack seems to confirm the beingness of not i but two carve up chips. In the original thread, 8Pack mentions that AMD already take their next-generation high-stop part ready for a while and that AMD also take a Hawaii bit fully enabled, in-development under their sleeves. We might have non taken this seriously if this was a post from a random forum but this coming out from 8Pack who'due south a renowned overclocker and has links with several tech companies is quite surprising indeed.

At present you may remember my onetime article which explicitly mentioned that the Hawaii GPU may accept extra compute units left disabled? The article being a rumor was chop-chop debunked past AMD's Dave Baumann (Technical Marketin Manager at AMD) at Beyond3D Forums. The report which was posted past industry insider MedicoLee or DGLee unveiled some critical details of the fully enabled Hawaii scrap and mentioned that the Hawaii GPU actually holds 48 compute units which amount to 3072 stream processors. If AMD does have this chip prepared for launch, then this could be a major attack on the GeForce GTX 780 Ti which has no successor in sight planned till Q4 2022 every bit hinted in the recent rumors. The upcoming GeForce GTX 880 and GeForce GTX 870 which are expected to launch with the latest Maxwell core and at lower cost than the GeForce 700 series cards will arrive in either October or November fourth dimension-frame.

The fully enabled Hawaii GPU might have 48 Compute Units, 192 Texture Mapping Units and 64 Raster Operators. The 48 Compute units amount to a total of 3072 stream processors. That's the aforementioned number of cores once featured on AMD's Radeon HD 6990 dual-chip graphics bill of fare and also the same number of cores which are currently available on NVIDIA's GeForce GTX 690 dual-chip card. Although there'due south no comparison between the cores since all cards are based on different architectures but its nevertheless a surprise that AMD tin can integrated such a high number of cores in their flagship bit, NVIDIA's GK110 has a maximum 2880 Cuda core count on the loftier-performance GeForce GTX 780 Ti and its Tesla/Quadro variants. The official naming scheme for the new card is non known but at that place's a possibility that nosotros may see a Radeon R9 295X branding every bit AMD has released Radeon R7 265, R7 255, R9 295X2 so a similar naming scheme should exist expected. Every bit for pricing, we may see a price of around $599-$649 for this variant pitting information technology close to the GeForce GTX 780 Ti which retails at $699 United states and offer more functioning.

The carte might fifty-fifty get a new cooling scheme as 8Pack goes on to mention that they have been in-talks with AMD around the temperature issue which plagued the original Hawaii chips until they were cooled by custom cooling from AIC partners. I even so don't know why didn't AMD release this chip before since information technology could have been used in both the new FirePro W9100 and Radeon R9 295X2 GPUs which were launched a few months back.

AMD Radeon R9 290 Serial Specifications:

	AMD Radeon R9 290	AMD Radeon R9 290X	AMD Radeon R9 295X	AMD Radeon R9 295X2
GPU Codename	Hawaii Pro	Hawaii XT	Hawaii XTX?	Vesuvius
GPU Procedure	28nm	28nm	28nm	28nm
Stream Processors	2560	2816	3072	5632
Base Clock	800 MHz	900 MHz	TBC	1018 MHz
Turbo Clock	947 MHz	1000 MHz	TBC	1018 MHz
VRAM	4 GB	4 GB	four GB	4 GB x 2
Memory Bus	512-Bit	512-Scrap	512-Flake	512-Bit x2
Retention Clock	5 GHz (effective)	v GHz (effective)	5 GHz (constructive)	five GHz (effective)
Power Configuration	viii+6 Pivot	8+6 Pin	TBC	8+8 Pin
PCB VRM	v+1+1	v+1+ane	TBC	v+ane+1
Die Size	438mm²	438mm²	438mmii	438mm2
Launch Date	31st October 2022	24th Oct 2022	2H 2022?	8th April 2022
Launch Price	$449	$549	$599 -$649?	$1499

AMD Already Has Hawaii GPU Successor Planned For Launch?

Only the biggest revelation of this report is not the new Hawaii GPU that volition shortly replace the R9 290X as the flagship single chip but the Hawaii GPU successor itself. Equally 8Pack mentions, the GPU has been in-development for a while at present and for all we know, the Hawaii and Bonaire GPUs were already in-plans for quite a while earlier their launch and were part of the GCN one.1 family unit. The bodily GCN ii.0 or the next generation Radeon GPU family based cards are yet nether-development such as Tonga, Iceland, Maui which will replace the three year sometime rebrands based on Tahiti, Pitcairn and Cape Verde. Then this might be an indication that we might run into new additions to the Radeon family or a new Radeon family series sooner or later effectually the aforementioned time NVIDIA plans to unveil Maxwell GeForce 800 serial cards.

We know that AMD has already started samplingfirst generation HBM with their graphics cards. The specifications of the HBM retention are interesting featuring a voltage of ane.two – 2.5V with the DRAM Die density of 2 Gb per stack, each stack featuring iv DRAM modules. The charabanc interface would be 1024-bit wide and the control interface would be the traditional DDR (GDDR for graphics units). Each stack would be fabricated up of a logic dice which volition characteristic a 2.5D or3D interface on which four DRAMs would exist stacked. This stacked layer would exist fused on the PCB just like the regular memory chips only would deliver high functioning as the name suggests (HBM = High Bandwidth Retention). The slide is from Dec 9th 2022 and is called "Dice Stack is Happening" which might give an idea why we have seen so many rebrands within the initial Volcanic Islands launch lineup till at present. The following nautical chart shows some deviation between GDDR5 and HBM Stacked retention designs:

	GDDR5	two-How-do-you-do HBM 'Stacked DRAM'	iv-Hullo HBM 'Stacked DRAM'
I/O	32	512	1024
Max Bandwidth Per Pin	7 Gbps	ane Gbps	1 Gbps
Max Bandwidth	28 GBps	64 GBps	128 GBps
Voltage	1.35 – ane.65	~1.2	~1.two
Command Input	Single	Dual	Dual
Layers	1	2 + 1	four + i