Tencent Cloud is the second Cloud provider by market share in China (or 3rd, Huawei may be ahead depending on the source). However, the ARM solution is using the same cores ( Ampere Altra) as Tencent, which I did get to try.
COMPUTER BENCHMARK COMPARISON REGISTRATION
I had signed up for an enterprise account under own sole-proprietorship (it seemed to offer a wider range of services), so I could not then complete the China region requirements which asked me to send my business registration number (don't have one, not an Inc.) and documents. There are reservation discounts and prices vary by region. Availability of instance types also varies by region - I could only get the latest Ice Lake and Milan instances in Singapore (or China if I could), while there is an Arm offering limited to China. Well almost, although theoretically the credit accrual/consumption of the t6 burstable instances is the same as on Amazon, one difference is that once you have about 5 credits left, the throttling starts slowly, so you approach 0 credits slowly (almost asymptotically), by using less credit the more you are throttled. There's a wide range of cloud services, with their ECS modelled after Amazon's EC2, down to how burstable instances with credits work.
I do sometimes get Intel Skylake instances on that region instead. I only once managed to get a Rome instance in the Ontario, CA region, but it was the only case I ever had an AMD Rome instance break 1000 on single-thread Geekbench. Although the 7542 vs 7642 models on paper have a large base clock-rate difference (2.3GHz vs 2.9GHz), their peak clock rate & performance can be similar (more of a difference between data-centers than between models). The performance difference between the different generations of processors is vast and it is possible the users have picked up on it and have allocated most of the Rome instances - at least for US/CA regions I had to spin up dozens of VMs to be assigned a Rome-powered model, although it is (currently) relatively easy in Singapore or Mumbai regions. It might be a first-gen AMD EPYC Naples (either 7501 or 7601 model), or a second-gen AMD EPYC Rome (7542 or 7642). They were one of the first cloud providers to offer AMD EPYC servers, however the main issue is that when spinning up an instance, you can't know what you are going to get. Basically if you don't have a constant high CPU load, they might be a good solution. Max credit allocation is 576, so theoretically if you are under the baseline for a 24h period, you reach those 576 which are enough to use 2xvCPU at 100% for 4.8 hours straight.
COMPUTER BENCHMARK COMPARISON FULL
medium instances tested can operate at 20% of their full performance while collecting "CPU credits" at a rate of 24/hour and each credit is enough to allow 1vCPU to run at 100% for a minute (or 1vCPU to run at 50% for 2 minutes, or 2vCPU to run at 50% for a minute etc). When assessing performance & value, we have to note how the low cost t xx "burstable" instance types behave.
A bit disappointingly, while they have an AMD EPYC Milan offering in some regions, it is a lower clocked version than any other provider. Unfortunately, the latest Graviton3 was still in a closed beta when I was benchmarking, so I had to settle with the Graviton2. Looking at their EC2 cloud computing platform specifically, what is interesting is that they have their own ARM offering called Graviton. Amazon Web Services is still the most popular cloud provider, with an extensive platform.
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