NVIDIA Ampere GA102-250 GPU Spotted on GeForce RTX 3090 Graphics Card, Was Going To Be Utilized In RTX 3080 Ti Before Spec-Change – Wccftech4 min read

https://wccftech.com/nvidia-ampere-ga102-250-gpu-spotted-on-geforce-rtx-3090-graphics-card-rtx-3080-ti-spec-change/

A user on Hardwareluxx’s Forums has confirmed the existence of NVIDIA’s Ampere GA102-250 GPU SKU which was previously expected to be featured on the GeForce RTX 3080 Ti graphics card. It was spotted when the forum member took apart his GeForce RTX 3090, only to reveal that the GPU had initially been labeled as the GA102-250 SKU instead of the GA102-300 which is the official SKU used on the RTX 3090.

NVIDIA’s Rumored GeForce RTX 3080 Ti GPU, The Ampere GA102-250, Spotted on A GeForce RTX 3090 Graphics Card

The NVIDIA GA102-250-KD-A1 GPU only existed in the rumor mill but now we can confirm that this is indeed a real chip. Initially planned for the GeForce RTX 3080 Ti graphics card, it looks like NVIDIA decided that they could use a further cut-down SKU to power the upcoming flagship while this SKU can be utilized for the GeForce RTX 3090 graphics card. You can clearly see that the GA102-250-KD-A1 GPU label has been cut-off and instead, it’s been repurposed as the GA102-300-A1 SKU. What’s interesting is that the GA102-250-KD-A1 was expected to feature 78 SM units enabled for a total of 9984 CUDA cores whereas the RTX 3090 with its GA102-300-A1 GPU packs 82 SMs or 10496 cores.

NVIDIA GeForce RTX 3050 Features Ampere GA107 GPU With 2048 CUDA Cores, Ray Tracing Coming Soon To Budget Gaming Laptops

It could be possible that NVIDIA decided to repurpose the GA102-250 SKU into  GA102-300 given the shortages of its high-end graphics cards. We cannot say for sure if the 250 variant offers the same performance/power limits as the 300 variant but given that it has a lower naming scheme, one could expect it to be a lower bin than the standard GA102-300 SKU. The GPU was also made during the 49th week of 2020 which is between the end of November and early December. Again, we do not know the extent to which NVIDIA is repurposing its GA102-250 chips to GA102-300 but since they exist and this is out now, we can expect more users to find this out by themselves.

NVIDIA’s GeForce RTX 3090 has been spotted utilizing the GA102-250 GPU, the once rumored SKU for the RTX 3080 Ti. (Image Credits: HardwareLuxx)

The NVIDIA GeForce RTX 3080 Ti on the other hand has seen a spec-change and will now be using the Ampere GA102-225-A1 GPU SKU. Following are the expected specifications of the upcoming RTX 30 series flagship.

NVIDIA GeForce RTX 3080 Ti 12 GB ‘Rumored’ Graphics Card Specifications

NVIDIA’s GeForce RTX 3080 Ti 12 GB FE (Founders Edition) graphics card is expected to feature the PG132-SKU18 PCB design and the GA102-225-KD-A1 graphics core. The GA102-225 GPU has also changed since the last time we saw them and will now feature 10240 CUDA cores within a total of 80 SM units. Since the main core configuration is entirely brand new, the previously leaked clocks & TMU/ROP counts should now be dismissed.

NVIDIA GeForce RTX 3080 Ti 12 GB Enthusiast Gaming Graphics Card Reportedly Pushed Back To May

As for memory, the card will feature 12 GB of GDDR6X memory. Unlike the 19.5 Gbps speeds of the RTX 3090, the GeForce RTX 3080 Ti is said to retain the same memory speeds as the RTX 3080 at 19 Gbps. Since we are getting 12 GB memory, the NVIDIA GeForce RTX 3080 Ti will be using a 384-bit bus interface which equals a total bandwidth of 912 GB/s. So while we see an 8 GB VRAM reduction over the previous spec, the larger bus interface should drive higher memory bandwidth.

The TGP for the card is set to be the same as the RTX 3080 at 320 Watts. That’s definitely needed to feed the extra cores so NVIDIA might have to optimize the clocks a bit here. The NVIDIA GeForce RTX 3080 Ti is expected to launch in mid-April for an MSRP of around $999 US. The card is rumored for launch in May.

NVIDIA GeForce RTX 30 Series ‘Ampere’ Graphics Card Specifications:

Graphics Card Name NVIDIA GeForce RTX 3050 NVIDIA GeForce RTX 3050 Ti NVIDIA GeForce RTX 3060 NVIDIA GeForce RTX 3060 Ti NVIDIA GeForce RTX 3070 NVIDIA GeForce RTX 3070 Ti? NVIDIA GeForce RTX 3080 NVIDIA GeForce RTX 3080 Ti? NVIDIA GeForce RTX 3090
GPU Name Ampere GA107 Ampere GA106? Ampere GA106-300 Ampere GA104-200 Ampere GA104-300 Ampere GA104-400 Ampere GA102-200 Ampere GA102-225? Ampere GA102-300
Process Node Samsung 8nm Samsung 8nm Samsung 8nm Samsung 8nm Samsung 8nm Samsung 8nm Samsung 8nm Samsung 8nm Samsung 8nm
Die Size TBA TBA TBA 395.2mm2 395.2mm2 395.2mm2 628.4mm2 628.4mm2 628.4mm2
Transistors TBA TBA TBA 17.4 Billion 17.4 Billion 17.4 Billion 28 Billion 28 Billion 28 Billion
CUDA Cores 2304? 3584? 3584 4864 5888 6144? 8704 10240? 10496
TMUs / ROPs TBA TBA 112 / 64 152 / 80 184 / 96 192/ 104? 272 / 96 320 / 112? 328 / 112
Tensor / RT Cores TBA TBA 112 / 28 152 / 38 184 / 46 192/ 48? 272 / 68 320 / 76? 328 / 82
Base Clock TBA TBA 1320 MHz 1410 MHz 1500 MHz TBA 1440 MHz TBA 1400 MHz
Boost Clock TBA TBA 1780 MHz 1665 MHz 1730 MHz TBA 1710 MHz TBA 1700 MHz
FP32 Compute TBA TBA 12.7 TFLOPs 16.2 TFLOPs 20 TFLOPs TBA 30 TFLOPs TBA 36 TFLOPs
RT TFLOPs TBA TBA 25.4 TFLOPs 32.4 TFLOPs 40 TFLOPs TBA 58 TFLOPs TBA 69 TFLOPs
Tensor-TOPs TBA TBA 101 TOPs 129.6 TOPs 163 TOPs TBA 238 TOPs TBA 285 TOPs
Memory Capacity 4 GB GDDR6? 6 GB GDDR6? 12 GB GDDR6 8 GB GDDR6 8 GB GDDR6 8 GB GDDR6X 10 GB GDDR6X 12 GB GDDR6X 24 GB GDDR6X
Memory Bus 128-bit 192-bit? 192-bit 256-bit 256-bit 256-bit 320-bit 384-bit 384-bit
Memory Speed TBA TBA 15 Gbps 14 Gbps 14 Gbps TBA 19 Gbps 19 Gbps 19.5 Gbps
Bandwidth TBA TBA 360 Gbps 448 Gbps 448 Gbps TBA 760 Gbps 912 Gbps 936 Gbps
TGP 90W? TBA 170W 200W 220W 250W? 320W 320W 350W
Price (MSRP / FE) $149? $199? $329 $399 US $499 US $599 US? $699 US $999 US? $1499 US
Launch (Availability) 2021? 2021? February 2021 December 2020 29th October May 2021? 17th September April 2021? 24th September

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