The 507528‑B21 is a four‑processor kit featuring HPE‑branded AMD Opteron 8380 chips. Each quad‑core processor runs at 2.50 GHz, includes 6 MB of L3 cache, and supports Hyper‑Threading. All four CPUs use the Socket F interface and are designed to be installed in HP Proliant DL785 G5 servers. Each processor features 4 cores, delivering a total of 16 cores across the kit. The 6 MB L3 cache is shared per processor, and Hyper‑Threading allows each core to handle two threads simultaneously, doubling the logical processors to 32. The Socket F platform supports DDR2 memory up to 1000 MHz, ensuring adequate memory bandwidth.