In a clock-to-clock test, China’s Loongson 3A6000 CPU achieves Core i5-14600K performance when overclocked. In clock-to-clock tests, the 3 GHz Longson 3A6000 CPU, designed for the Chinese home PC market, has achieved performance parity with Intel’s 14th-generation CPUs.
If not for its low clock speeds, the Loongson 3A6000 CPU could be a game-changer for China’s PC market. It has strong clock-to-clock performance against Intel’s latest CPUs.
We had our first real taste of the eagerly expected Loongson 3A6000 CPU last month. This brand-new chip is intended to cater to the PC market in China. In terms of IPC, we observed in the preview that the chip was able to catch up to the most recent desktop CPUs from AMD and Intel. Now, we have more tests that demonstrate the processor’s potential.
The specifications of the Loongson 3A6000 CPU include a quad-core (4C/8T) architecture and a top operating frequency of 2.5 GHz. Utilising a 4th Generation Dragon architecture, the CPU combines SMT2 with LA664 cores that handle both the 256-bit advanced vector processing extended instructions (LASX) and 128-bit vector processing extended instructions (LSX).
The chip’s performance was evaluated using the UnixBench and SPEC CPU 2006 benchmarks. First off, we have the single-core tests from SPEC CPU 2006, where the Loongson 3A6000 CPU provided a performance boost of up to 75% over the 3A5000. Despite using less power (42W as opposed to 52W), the chip ultimately came extremely close to the Core i3-10100. The Loongson 3A6000 CPU operated at 2.5 GHz clock speed, whereas the Core i3-10100 reached its maximum frequency of 4.3 GHz. This is where the differences lie. In multi-core testing, the chip demonstrated an over twofold increase in performance compared to its predecessor, the 3A5000, while providing performance that was approximately identical to that of the Core i3-10100 (4.3 GHz).
In clock-to-clock tests, Loongson’s 3A6000 CPU achieves performance parity with Intel’s 14th Gen CPUs.
In order to ensure fairness, the Loongson 3A6000 was compared at 2.5 GHz clock speeds to the Core i3-10100 and Core i5-14600K. This made it possible for the 3A600 to easily outperform the Core i3-10100 CPU, outperforming it by up to 40%. The chip also outperformed the Core i5-14600K in the integer tests, but it lagged somewhat in the floating point testing.
Only with LN2 cooling can the Loongson 3A6000 CPU reach clock rates of 3 GHz.
Last but not least, the UnixBench presented a comparable tale and demonstrated that the Loongson 3A6000 CPU has the potential to be a very competitive option on the Chinese home market. Although the chip’s clock speeds may be increased in subsequent generations, it appears that it can only operate at about 2.6 GHz at this time, with LN2 cooling needed for 3 GHz, as ASUS’s Tony has shown below.
The ASUS-designed motherboard utilised for the overclocking demonstration is the XC-LS3A6M, which supports DDR4 and has the 7A2000 PCH. It was made especially for the Loongson 3A6000 CPUs. Numerous I/O functions are included, and ASUS says that more OC improvements are on the way.
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