Wednesday, September 9th 2020

Alleged AMD Radeon "Big Navi" Prototype Pictured

Following Wednesday's announcement of the Radeon RX 6000 series with product launches on October 28, the rumor mill started rolling full steam ahead. The RX 6000 series GPUs by AMD will be based on the RDNA2 graphics architecture, the same exact architecture powering the Xbox Series X and PlayStation 5, and will feature DirectX 12 Ultimate support, including hardware raytracing. A PC enthusiast on Chinese microblogging site Bilibili posted a picture of an alleged "Big Navi" prototype. Since its July 2019 debut, there have been rumors of AMD working on a new high-end GPU to take on the upper-segment of NVIDIA, given that the RX 5700 series offered competitive performance to NVIDIA's breadwinning products, such as the RTX 2070 series and RTX 2060 series.

The picture reveals the reverse side of the alleged "Big Navi" prototype's PCB, showing a larger cluster of GPU ancillaries than those behind a "Navi 10," and eight memory pads with the paper labels "Typical XT ASIC" references for a "16 Gb Samsung GDDR6 memory." Over a 256-bit wide memory interface, the chip should hence have 16 GB of GDDR6 memory. Since this is a prototype, several headers are sticking out of the PCB for the design and prototyping of the product. A tower-type CPU cooler has been MacGyvered onto the GPU (which isn't uncommon for VGA prototypes). We'll hear a lot more about this product in the run up to its October 28 launch.
Sources: 搞机猛男 (bilibili), ChipHell Forums
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96 Comments on Alleged AMD Radeon "Big Navi" Prototype Pictured

#2
saikamaldoss
Nice. Hopefully it will be good and worth the wait
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#3
Caring1
Looks like a 40mm fan on the rear I/O section too.
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#4
ernorator
So I see that AMD know how to air cool there cards....si they get it just decided to feed us with blowers

Hope they are good
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#5
STSMiner
Looks like the sucker has 16GB of memory too !
Posted on Reply
#6
thesmokingman
ernorator
So I see that AMD know how to air cool there cards....si they get it just decided to feed us with blowers

Hope they are good
Yea, I was like that is some good shit. They should sell that bracket.
Posted on Reply
#7
Anymal
STSMiner
Looks like the sucker has 16GB of memory too !

No x in gddr6!
Posted on Reply
#8
xkm1948
Current assessment from a famous leaker claims this is the big Navi: Navi 21. So only 256 bit though...

[MEDIA=twitter]1303890583123968000[/MEDIA]
Posted on Reply
#9
murr
Somebody needs a dust blower.
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#10
Mouth of Sauron
But how about its POWER CONNECTOR? I need a lots and lots of renders, 'leaked pics' and real pictures by custom cards makers!
Posted on Reply
#11
btarunr
Editor & Senior Moderator
Anymal
No x in gddr6!
GDDR6X is not a JEDEC standard. It's an NVIDIA+Micron exclusive. The only way AMD can match up is the expensive HBM2 MCM route.
Posted on Reply
#12
Caring1
STSMiner
Looks like the sucker has 16GB of memory too !

Well how about that, for those of us that can read, it's WRITTEN in the O.P.
Posted on Reply
#14
laszlo
seems i have to eat salt again... damn it i'll destroy my kidney and can't sell it to buy a new gpu...
Posted on Reply
#15
watzupken
Windyson
256Bit ? so disappointed !
It is too early to conclude if it is just 256 Bit because we don't know if that card in the picture is the top end card. This could well be the direct competitor of the RTX 3070 which also features a 256 Bit memory interface. I feel AMD may also be using the faster 16Gbps GDDR6, instead of the 14Gbps used on the RTX 3070.
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#16
Vayra86
Yep...

So... this might even end up no higher than 3070. That's worse than expected. Also, once again you gotta wonder... how the f does this pic exist. Its like my three year old dust bin built up out of second-hand parts from 8 years old. Or is this AMD doing testing in 'real world scenario's' right here? o_O Marketing machine firing on all cilinders clearly
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#17
Poul-erik
Someone writes 256bit, I saw this, but if it's true I do not know.
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#18
Vayra86
Straight to 512 bit? That wipes every chance of a faster version off the table. Seems excessive, but who knows.
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#19
ExcuseMeWtf
Windyson
256Bit ? so disappointed !
Why?

It is only one part of achieving needed memory bandwidth...
Posted on Reply
#20
Windyson
watzupken
It is too early to conclude if it is just 256 Bit because we don't know if that card in the picture is the top end card. This could well be the direct competitor of the RTX 3070 which also features a 256 Bit memory interface. I feel AMD may also be using the faster 16Gbps GDDR6, instead of the 14Gbps used on the RTX 3070.
16GB,it's not the mid-end card.
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#21
M2B
If this is indeed the top-end RDNA2 GPU, I can understand why AMD wouldn't want to enter the high-end segment. THEY JUST DON'T SELL. AMD's midrange 5700 series ended up selling way less than Nvidia's high-end, so why would AMD waste their R&D budget for something that they can't sell?
Not to mention the limited producation capacity that could go towards the CPU portion and be way more profitable.
I hope this isn't the top-end chip and AMD can compete with even the 3090, but you can't really expect a 256-bit GPU to be that much faster than a 2080Ti.
Posted on Reply
#22
SIGSEGV
xkm1948
Current assessment from a famous leaker claims this is the big Navi: Navi 21. So only 256 bit though...

[MEDIA=twitter]1303890583123968000[/MEDIA]
he also mentioned the battle between HD4870 vs GTX260
Posted on Reply
#23
Vya Domus
One thing for sure is that this ain't a 300W GPU judging from that small cooler.
Vayra86
Straight to 512 bit? That wipes every chance of a faster version off the table.
How does that work ? A wider bus can only mean higher performance not lower.
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#24
rippie
big navi (navi 21) will have likely 384 bit mem, 24GB, 80 compute units, ~3080 perf?
this is most likely "middle navi" (navi 22) 256 bits mem, 16GB, ~64 compute units -> ~3070 perf?
Posted on Reply
#25
Fluffmeister
Good to see it tested in a clean and sterile environment.
Posted on Reply
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