Both mainboards offer the primary advantages of the i820 chipset, including support for 133MHz bus-utilizing CPUs (like the new Coppermine P3-733) AGP4X, UDMA/66 support, and dedicated bandwidth for PCI peripherals.

You'll notice though that the Intel i820 chart above includes bandwidth figures in bubbles that are based on 400MHz PC800 RDRAM, which offers up to 1,600MB/sec of total throughput "vs." the smaller bandwidth figures that ordinary PC100 SDRAM would offer.

Both the VC820 and the CC820 are offered at similar price points to system builders, and their maximum memory totals are identical at 512MB. Also identical, are both mainboard's support for Intel CPUs that utilize either a 100 or a 133MHz front side bus.

This is possible because the i820 treats the memory system bus as a separate entity versus the CPU's native bus speed, similarly to how AMD's EV6 architecture does on Athlon-based platforms.

The CC820 is clearly a solution that was easy for Intel to develop and implement quickly, we get the feeling that it was a last second addition to the i820 product family thanks again to higher than anticipated RDRAM prices.