It looks like NVIDIA’s add-in board partners have begun to quietly launch GeForce RTX 3060 8GB graphics cards. This is a variant of the original RTX 3060 with a third of its memory size and memory bus removed. The original RTX 3060 is actually NVIDIA’s best-selling desktop SKU from the RTX 30 series and originally launched with 12GB of 15 Gbps GDDR6 across a 192-bit memory bus, giving the card a total of 360 GB/s memory bandwidth. The new 8GB version of the card will come with the same 15 Gbps data rate, but the 8GB of memory is across a 128-bit memory but, which works out to 240 GB/s.
NVIDIA has not changed any other specifications of the card like core-configuration. So you are still going to get the same 3584 CUDA cores across all 28 SM, which gives you 112 Tensor cores, 28 RT cores, 112 TMUs, and 48 ROPs. The clocks are also the same at 1320 MHz base and 1777 MHz GPU boost. This new 8GB variant will not be replacing the current RTX 3060, but will sit below it, possibly to compete with Intel’s Arc A750 or the Radeon RX 6600 (non-XT).