Oliver Haslam on July 2, 2020, 9:59 pm

2020 iMac With 10-Core Intel i9 CPU, Radeon Pro 5300 GPU Appears In Benchmarks

We’ve been hearing rumors in recent weeks that point the finger squarely at the arrival of a new iMac at some point soon. We thought that might happen during WWDC, but it didn’t. Whenever it happens, it has to be soon after benchmark scores for an unannounced machine appeared online.

The iMac, spotted by @rogame on Twitter and shared by Tom’s Hardware. appears to pack a 10-core Intel Core i9-10910 processor. And it seems to be a custom chip, specifically designed for Apple.

Being a member of the Core i9 family, the CPU comes with the same base specifications as the other variants. In this case, the processor sports 10 CPU cores, 20 threads and 20MB of L3 cache. Ultimately, the listed clock speeds are what differentiates the Core i9-10910 from its siblings.

The chip appears to run at 3.6GHz as a base speed and offers a 4.7GHz turbo boost. Tom’s Hardware also pegs it as a 95W processor, again making it a special part only available to Apple.

The unannounced iMac also includes a new GPU in the form of an AMD Radeon Pro 5300. It offers a clock speed of 1,650 MHz and 4GB of onboard memory.

With iMacs currently using the 8th and 9th-generation Intel chips this would be the first to use a 10th-generation part, also suggesting that it will be reserved for the higher end 27-inch iMacs, too.