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Around 30% of GeForce RTX 3080 would not achieve expected performance due to Samsung’s 8nm

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The only “negative point” of the Nvidia GeForce RTX 30 series graphics cards we have seen so far is in Samsung’s 8nm manufacturing process. Although it was expected that Nvidia would resort to TSMC and its already very mature 7nm, after several news on poor performance of Samsung 8nm’s wafer, which would cause a limited stock of GPUs, because Nvidia wanted to avoid wafers with lots of wastage, and for this it reduced the number of wafers purchased until Samsung improve the quality.

Now, with the graphics cards in the reviewers’ home, more information has begun to be revealed, such as all Nvidia GeForce RTX 3080 graphics cards will not perform evenly, because not all GPU Cores have the same quality, so a minority of models will not be able to reach the same potential.

Specifically, it is indicated that the poor performance of the company’s silicon affects 30 percent of the Nvidia GeForce RTX 3080 GPUs that we will be able to know their official performance on September 14 (only the Founders) and that will go on sale three days later.

Just for information, the longer a chip production runs, the better the chip qualities or the percentage ratio of very good, good and ok with graphics cards. According to Igor Wallossek, he has various statistical evaluations, which can of course be averaged. But as we are still at a very early stage, the shares are of course only worse than they could be in a few months. Internally, binning is usually divided into 3 stages. Then there is the sort ok as “Bin 0”, the sort good as “Bin 1” and the really good as “Bin 2”.

The sources speak almost unanimously of an average of up to 30% of chips with Bin 0, approx. 60% with Bin 1 and only 10% with Bin 2 for the RTX 3080, which is ok for such a short production period.

To avoid this problem, Nvidia is preparing new graphics drivers to balance the performance of the GPUs, so it could be normal to see some reviews where the performance of some model is slightly lower than others, since many reviewers will have practically the reviews already ready and they will be finalizing the details.

Obviously, the only solution to this problem will be to let the first batch of GPUs pass and wait for models with more mature manufacturing processes to arrive, although of course, this will mainly affect the user who wants to squeeze every last MHz through overclocking.

Source: igorslab.de

NVIDIA GeForce RTX 30 Series Graphics Card Specifications:

Graphics Card Name NVIDIA GeForce RTX 3070 NVIDIA GeForce RTX 3080 NVIDIA GeForce RTX 3090
GPU Name Ampere GA104-300 Ampere GA102-200 Ampere GA102-300
Process Node Samsung 8nm Samsung 8nm Samsung 8nm
Die Size 395.2mm2 628.4mm2 628.4mm2
Transistors 17.4 Billion 28 Billion 28 Billion
CUDA Cores 5888 8704 10496
TMUs / ROPs TBA 272 / 96 TBA
Tensor / RT Cores 184 / 46 272 / 68 328 / 82
Base Clock 1500 MHz 1440 MHz 1400 MHz
Boost Clock 1730 MHz 1710 MHz 1700 MHz
FP32 Compute 20 TFLOPs 30 TFLOPs 36 TFLOPs
RT TFLOPs 40 TFLOPs 58 TFLOPs 69 TFLOPs
Tensor-TOPs 163 TOPs 238 TOPs 285 TOPs
Memory Capacity 8/16 GB GDDR6 10/20 GB GDDR6X 24 GB GDDR6X
Memory Bus 256-bit 320-bit 384-bit
Memory Speed 14 Gbps 19 Gbps 19.5 Gbps
Bandwidth 448 Gbps 760 Gbps 936 Gbps
TDP 220W 320W 350W
Price (MSRP / FE) $499 US $699 US $1499 US
Launch October 2020 17th September 24th September