China's new Hygon C86-7490: based on AMD Zen 1, custom CPU with 64C/128T, DDR5, SP5 socket

As an Amazon Associate, we earn from qualifying purchases. TweakTown may also earn commissions from other affiliate partners at no extra cost to you.

Chinese company Hygon has just teased its new C86-7490 CPU, which is based on the Dhyana x86 IP (AMD Zen architecture) in customized form: up to 64 cores and 128 threads, DDR5 memory support, and on the SP5 platform.

7

There has been a joint venture between AMD, HMC, Hygon, and Global Foundries for a few years now, with custom-designed chips to meet the domestic needs of Chinese companies. Hygon has a CPU family of up to 32 cores, based on the first-gen Zen core IP, but the new family of CPUs are going to offer upgrades across the board.

Hygon is now offering its new C86-7490 and C86-7390, which are CPUs based on the customized Zen 1 core very similar to Zen +. The first-gen Zen core architecture topped out at 32 cores and 64 threads max, but Hygon's new custom Zen 1-based CPU offers up to 64 cores and 128 threads of Zen 1 processing power.

The company has dived into the details of its new processors, but leaker "Everest" posted on X that the Hygon Dyhana C86-7490 processor has 4 x 16-core CCDs which make up the 64 cores and 128 threads, with the chip also packing two IO dies, whereas the original Zen and Zen+ EPYC processors only featured a single IOD.

• Read more: Chinese company making x86 CPUs based on AMD Zen tech

Another nifty thing to see with the custom-designed Hygon CPU is that they support the SP5 socket, which as Wccftech says, could explain how the Zen 1-based chip has two IO dies instead of one. The SP5 package is a bit bigger than the SP3 sockets that the Zen 1-based EPYC processors went into, and there's also extra space on the package since only 4 x CCDs are on the entire chip.

7

Now that we're on the SP5 socket, Hygon's new C86 series CPUs support up to 12-channel DDR5 memory support, and while we're on the topic of DDR5, the original Zen EPYC processors didn't use DDR5, they used DDR4. Another nice touch of a custom-designed Zen 1-based processor.

Now, let's talk about pricing: Hygon's new C86 processors range between 35,000 RMB (around $4900 USD or so) up to 42,000 RMB (around $5900 USD or so), respectively.