Nvidia Pascal GTX 1080 Has 8GB GDDR5X & 320GB/s Of Bandwidth, GTX 1070 Has 8GB GDDR5 & 256GB/s - GP104 GPU Supports GDDR5/X

Co-ordinate to the latest whispers Nvidia has allegedly designed ii reference PCBs with GDDR5X and GDDR5 compatibility for its GP104 GPU based GTX 1080 and GTX 1070 graphics cards. The latest whispers claim that Nvidia has decided to create a "premium" GP104 board based on the GP104-400 GPU that is going to power the flagship Pascal GeForce GTX graphics card this yr. Otherwise known as the GTX 1080 in the web's echochambers, this "premium" board will allegedly feature GDDR5X rather than GDDR5.

Whilst Nvidia's more mainstream GP104 based graphics card, the purported GTX 1070, will be based on a cutting down version of the aforementioned GP104 scrap code named GP104-200 and feature 8Gbps GDDR5 chips instead. This rumor comes straight from the chiphell forums via bitsandchips.information technology, which have also brought us the leaked GP104 die shots a few days ago. And so while there peradventure veracity to these claims, nosotros'd notwithstanding advise our readers to accept this with the usual grain of salt.

Nvidia GeForce GTX 1080 And GeForce GTX 1070 To Characteristic Unlike PCBs Due to Different GDDR5X & GDDR5 Pin Layout

According to the same source two different PCB designs are necessary due to the different pin layout of GDDR5X and GDDR5 chips. So whilst the GP104 GPU is claimed to be compatible with both retentivity technologies, the different pivot layout doesn't allow GDDR5X to exist a simple drop-in replacement.

The leaked GP104 die shot revealed that the pictured graphics lath features 8Gbps Samsung GDDR5 memory fries. Unfortunately the nscripted info on the die has been omitted, otherwise we would've been able to determine whether this is GP104-400 or GP104-200 and validate the rumored claims of GP104-400 using GDDR5X. Assuming the whispers are true, this die shot should be of GP104-200 and this should be a GTX 1070 board rather than a GTX 1080.

The first wave of GDDR5X memory chips that Micron has started sampling terminal month and will be mass producing in the summer are rated at 10Gbps, 11Gbps and 12Gbps. Which means that the fastest GDDR5X configuration will yield up to 50% more bandwidth vs the 8Gbps GDDR5 retentiveness chips pictured to a higher place.

Considering the GP104 GPU is configured with a 256bit retentivity interface. With 10gbps GDDR5X chips chosen, the GTX 1080 will take access to320GB/s of memory bandwidth. That's upwards to 43% more compared to the GTX 980 and just 5% less than the GTX 980 Ti.

Nvidia Pascal Specs

WCCF	GTX 980 Ti	GTX 980	GTX 1080	GTX 1070	TESLA P100 (GP100)
GPU	GM200	GM204	GP104	GP104	GP100
Process Node	28nm	28nm	16nm FinFET	16nm FinFET	16nm FinFET
Transistors	8 Billion	v.2 Billion	TBA	TBA	xv.three Billion
CUDA Cores	2816 CUDA Cores	2048 CUDA Cores	2560 CUDA Cores?	2048 CUDA Cores?	3840 CUDA Cores
VRAM	vi GB GDDR5	iv GB GDDR5	viii GB GDDR5X	8 GB GDDR5	16GB HBM2
Memory Charabanc	384-scrap	256-bit	256-scrap	256-flake	4096-bit
Memory Speed	7Gbps	7Gbps	10Gbps	8Gbps	1.4Gbps
Bandwidth	336GB/s	224GB/due south	320GB/south	256GB/south	720GB/s
TDP	250W	165W	TBA	TBA	300W
Launch Date	May 2022	September 2022	June 2022	June 2022	Q1 2022

Micron appear belatedly last month that it's already aircraft 10Gbps, 11Gbps and 12Gbps samples to its customers. Which ways that Nvidia, also as AMD, have already got admission to GDDR5X chips to test and will exist set to ringlet out graphics cards featuring the new memory technology as production ramps up this summer. This indicates that the decision to use both GDDR5X and GDDR5 retentiveness technologies as opposed to just GDDR5X was driven mainly by a desire from Nvidia to reduce cost.

So far all rumors and leaks point towards a Computex, late May, annunciation and June launch of Nvidia's next generation Pascal GP104 based GTX 1080 and GTX 1070 graphics cards. Whether Nvidia will actually proper name their next generation GTX 980 and GTX 970 replacements GTX 1080 and GTX 1070 is bailiwick to speculation at this point. But I fully wait Nvidia to roll out a new naming scheme for its new products this year.

Nvidia'due south Pascal Compages - Fewer, Faster CUDA Cores With Significantly Higher Per Thread Throughput

We dove deep into Nvidia's Pascal architecture concluding week later the company's GTC 2022 reveal of the Tesla P100 and the flagship Pascal GP100 GPU that will exist launching in 2022. We discussed all the architectural updates that Nvidia has made to Pascal which I'd highly recommend that you check out if y'all're interested in finding out how much faster Pascal is going to be.

A few very significant changes from Maxwell to Pascal stick out. Each Pascal CUDA cadre has been beefed up considerably compared to Maxwell and clock speeds have gone up by 33%. And then core for core, Pascal will be much faster than Maxwell.

Tesla Products	Tesla K40	Tesla M40	Tesla P100
GPU	GK110 (Kepler)	GM200 (Maxwell)	GP100 (Pascal)
SMs	15	24	56
TPCs	15	24	28
FP32 CUDA Cores / SM	192	128	64
FP32 CUDA Cores / GPU	2880	3072	3584
FP64 CUDA Cores / SM	64	4	32
FP64 CUDA Cores / GPU	960	96	1792
Base Clock	745 MHz	948 MHz	1328 MHz
GPU Boost Clock	810/875 MHz	1114 MHz	1480 MHz
Compute Performance - FP32	v.04 TFLOPS	6.82 TFLOPS	10.6 TFLOPS
Compute Performance - FP64	1.68 TFLOPS	0.21 TFLOPS	5.3 TFLOPS
Texture Units	240	192	224
Retentivity Interface	384-bit GDDR5	384-bit GDDR5	4096-bit HBM2
Memory Size	Up to 12 GB	Up to 24 GB	16 GB
L2 Enshroud Size	1536 KB	3072 KB	4096 KB
Register File Size / SM	256 KB	256 KB	256 KB
Register File Size / GPU	3840 KB	6144 KB	14336 KB
TDP	235 Watts	250 Watts	300 Watts
Transistors	7.i billion	8 billion	15.iii billion
GPU Die Size	551 mm²	601 mm²	610 mm²
Manufacturing Process	28-nm	28-nm	xvi-nm

This should come equally a relief to those who accept been wondering if Nvidia'due south GP104 based, GTX 1080 and GTX 1070, graphics cards volition offering a reasonable speed-up over the GTX 980 Ti and GTX 980. The leaked die shot of GP104 revealed that the chip in question is roughly merely 300mm² large, half that of the 3840 CUDA core GP100 GPU.

The GP100 GPU features 6 GPCs, Graphics Processing Clusters. Each contains ten Pascam SMs, Streaming Multiprocessors. Each SM contains 64 Pascal CUDA cores. Which ways that each GPC houses 640 Pascal CUDA cores. Since the GP104 GPU is well-nigh exactly half the size of GP100, If Nvidia maintains the same x SM per GPC design,the GTX 1080 should feature 3 GPCs and 1920 CUDA cores. And up to 2048 CUDA cores if Nvidia decides to tweak the pattern and opt for a four GPC layout with north eight SMs per GPC.

GPU	Kepler GK110	Maxwell GM200	Pascal GP100	Volta GV100
Compute Capability	3.v	5.3	6.0	7.0
Threads / Warp	32	32	32	32
Max Warps / Multiprocessor	64	64	64	64
Max Threads / Multiprocessor	2048	2048	2048	2048
Max Thread Blocks / Multiprocessor	16	32	32	32
Max 32-bit Registers / SM	65536	65536	65536	65536
Max Registers / Block	65536	32768	65536	65536
Max Registers / Thread	255	255	255	255
Max Thread Block Size	1024	1024	1024	1024
CUDA Cores / SM	192	128	64	64
Shared Memory Size / SM Configurations (bytes)	16K/32K/48K	96K	64K	96K

In either example, with Pascal's pregnant architectural improvements and very loftier frequency increase in mind. A 1920-2048 CUDA cadre GTX 1080 graphics bill of fare should finish upwards being faster than a GTX 980 Ti. The performance delta should be reminiscent of what GTX 980 brought to the table when it launched compared to the GTX 780 Ti. A 15-xx% performance increment at a lower price betoken. That being said the GTX 1070 should be the star of the lineup. Offering GTX 980 Ti comparable performance at a much more affordable toll point, once again similar to what the 970 delivered compared to the 780 Ti.

AMD'southward Polaris GCN 4.0 architecture is purported to deliver similar gains over the company's current GCN iteration, nosotros'll exist detailing those in an upcoming architectural deep dive piece too. Polaris 10 and Polaris 11 based cards, R9 490, 480 and 470 series, are also pegged for a June launch against Pascal. So we tin can't wait to come across both Pascal and Polaris in activity this summer.

Source: https://wccftech.com/rumor-nvidia-pascal-gtx-1080-gddr5x-gtx-1070-f-gddr5/

Posted by: hamiltonbefee1995.blogspot.com

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