The specifications of the NVIDIA GeForce RTX 3080 mobility video card have been confirmed in a list on the Geekbench. The list was found by TUM_APISAK and shows the next generation RTX 30 series mobility GPU running on the OpenCL test suite.
NVIDIA GeForce RTX 3080 mobility GPU to present GA104 GPU with 6144 cores, 16 GB memory and 1540 MHz clock in Max-P variant, on par with an RTX 2080 Ti
A few days ago, we saw the benchmarks and specifications for the GeForce RTX 3070 GPU for laptops along with the first listings for the NVIDIA GeForce RTX 30 series mobility line along with some preliminary specifications. Furthermore, based only on clock speeds, we can say that this is the Max-P variant of the GeForce RTX 3080 instead of the Max-Q variant which offers conservative clock speeds to offer greater efficiency and battery times.
Therefore, reaching specifications, the NVIDIA GeForce RTX 3080 Mobility will feature 48 SMs in the GA104 GPU SKU (presumably the GA104-775). This chip would have a total of 6144 cores and a maximum clock speed of around 1540 MHz. The video card also has a 16 GB VRAM that works on a 256-bit bus interface, but it is not yet known whether NVIDIA is using 12 or 14 Gbps DRAM modules for your mobility line. In the case of 14 Gbps, the GPU will be able to offer a maximum bandwidth of 448 GB / s.
NVIDIA GeForce RTX 30 mobility GPU line:
| GPU Name | NVIDIA GeForce RTX 3060 | NVIDIA GeForce RTX 3070 | NVIDIA GeForce RTX 3080 |
|---|---|---|---|
| Process Node | Samsung 8nm | Samsung 8nm | Samsung 8nm |
| SKU GPU | GA106 | GA104-770 | GA104-775 |
| SMS | 24 | 40 | 48 |
| CUDA Cores | 3072 | 5120 | 6144 |
| Base Clock | ~ 900 MHz | ~ 1100 MHz | ~ 1100 MHz |
| Boost Clock | ~ 1700 MHz | ~ 1620 MHz | ~ 1700 MHz |
| Memory clock | 14 Gbps | 14 Gbps | 14 Gbps |
| Memory Type | GDDR6 | GDDR6 | GDDR6 |
| Memory size | 6 GB | 8 GB | 8/16 GB |
| Memory Bus | 192 bits | 256 bits | 256 bits |
| Bandwidth | 336 GB / s | 448 GB / s | 448 GB / s |
| TGP | 80-115W 60-70W |
115-150W 80-90W |
115-150W 80-90W |
| settings | Max-Q Max-P |
Max-Q Max-P |
Max-Q Max-P |
| Launch | Q1 2021 | Q1 2021 | Q1 2021 |
Preliminary specifications also seem to indicate that the Max-Q variant will have a TGP between 80-90W, while the fastest Max-P variant will have a 115-150W TGP. The NVIDIA GeForce RTX 3080 Mobility was tested on a next-generation ASUS ROG Zephyrus GX551QS laptop that comes with the AMD Ryzen 9 5900H CPU with 8 Zen 3 cores, 16 threads, a base clock of 3.30 GHz and an increase clock of up to 4.55 GHz. You can see CPU benchmarks in this previously reported article.
In terms of performance, the GPU scored 139181 points in the OpenCL test. The score places GeForce RTX 3080 mobility on the same level as the GeForce RTX 2080 Ti and GeForce RTX 3070 Desktop variants. But at the same time, it is slower than the GeForce RTX 3080 desktop by 30%, which was to be expected, since the variant not only offers smaller cores, but also comes with much smaller clocks, although it is a Max- P. The score also puts the GeForce RTX 3080’s mobility around 25% faster than the GeForce RTX 3070’s mobility results we’ve seen before.
So, essentially, you will get performance levels of the RTX 2080 Ti on a GPU, which was not the case in the previous generation.
Laptop manufacturers will also offer sophisticated and enthusiastic configurations of NVIDIA GeForce RTX 30 Ampere GPUs with AMD’s Ryzen 5000H ‘Cezanne-H’ CPUs and Intel’s Tiger Lake-H 11th Generation CPU lineup at CES 2021.