Hmmm.. it maybe free from IME! Maybe the FSF want a word with them.
No IME but whatever unknown chinese rootkit? Out of the frying pan, into the fire
I can reason about an "unknown chinese rootkit" as much as about an "unknown US rootkit".
Zhaoxin's KX-7000
21–30 of 60 posts
Re: Zhaoxin's KX-7000
#22Earlier quoted context omitted.
Seems like it depends on the price point. These chips might be slow by modern standards, but if they're cheap enough then it doesn't really matter for a lot of the potential applications. I'm typing this post on a chip that is roughly in that performance bracket (an i5-3750k) that only rarely feels like the bottleneck. And this is my gaming machine.
I'm running a well-optimized 2014 Haswell I5-4590 system with a Radeon 7800 XT in my virtual pinball cabinet. It's handling real-time 3D at 1440p 120fps at medium-high settings and VPX is pretty CPU heavy. My system is probably only a generation or two ahead of the one described (although it's true that Haswell was one of those occasional Intel generations that became legendary for outperforming and generally aging v…
That's very lopsided in favor of the GPU - if VPX is more CPU intensive that the average video game you could probably swap the 7800 xt for something much cheaper and get the same performance.
Re: Zhaoxin's KX-7000
#23This review is an object lesson about why there is so much more to shipping a decent processor than making a CPU core with reasonable performance (and decent is being polite given that we are talking about Bulldozer-class single-threaded perf, which most folks were beyond thrilled to abandon when Zen arrived eight years ago.)
The behavior of the memory controller is wild to see in this day and age. You really don't want to see latency that high in general, but especially not for a client processor. I'd really like to see how it behaves with a reasonably powerful GPU in a CPU-bound gaming workload relative to the competition (to simulate what one of these might see in an internet café setting, for instance).
Power efficiency also seems truly dismal according to PCWatch: https://pc.watch.impress.co.jp/docs/column/hothot/1626253.ht... . In Cinebench MT, it's consuming about the same power as a Ryzen 5 5600G while delivering about 1/3 the performance, and the idle power is much higher than the Core i3-8100/R5 5600G to boot. That's not a huge issue for desktops, but it would not make a good foundation for a mobile system.
Overall an improvement versus past Zhaoxin efforts but people shouldn't kid themselves about the quality of the overall package here. There is a long way to go.
Re: Zhaoxin's KX-7000
#24Earlier quoted context omitted.
Seems like it depends on the price point. These chips might be slow by modern standards, but if they're cheap enough then it doesn't really matter for a lot of the potential applications. I'm typing this post on a chip that is roughly in that performance bracket (an i5-3750k) that only rarely feels like the bottleneck. And this is my gaming machine.
I'm running a well-optimized 2014 Haswell I5-4590 system with a Radeon 7800 XT in my virtual pinball cabinet. It's handling real-time 3D at 1440p 120fps at medium-high settings and VPX is pretty CPU heavy. My system is probably only a generation or two ahead of the one described (although it's true that Haswell was one of those occasional Intel generations that became legendary for outperforming and generally aging v…
Haswell/Broadwell with embedded 128MB of eDRAM Level 4 cache are some extremely awesome hidden gems.
Re: Zhaoxin's KX-7000
#25This review is an object lesson about why there is so much more to shipping a decent processor than making a CPU core with reasonable performance (and decent is being polite given that we are talking about Bulldozer-class single-threaded perf, which most folks were beyond thrilled to abandon when Zen arrived eight years ago.) The behavior of the memory controller is wild to see in this day and age. You really don't w…
Absolutely a lomg way to go.
Interestingly, the chip is rated to run at DDR4-3200 or DDR5, so it's strange C&C got half that.
The power issues are likely from by modern standards pre-historical clocking behavior (single P-state to my understanding)!
Re: Zhaoxin's KX-7000
#26Been interesting following Zhaoxin, but yeah, looks like there's still a mountain to climb before these chips hit the big time. Kinda wild they're still so far behind, but I get why China wants to push their own stuff anyway.
Re: Zhaoxin's KX-7000
#27This review is an object lesson about why there is so much more to shipping a decent processor than making a CPU core with reasonable performance (and decent is being polite given that we are talking about Bulldozer-class single-threaded perf, which most folks were beyond thrilled to abandon when Zen arrived eight years ago.) The behavior of the memory controller is wild to see in this day and age. You really don't w…
Absolutely a lomg way to go. Interestingly, the chip is rated to run at DDR4-3200 or DDR5, so it's strange C&C got half that. The power issues are likely from by modern standards pre-historical clocking behavior (single P-state to my understanding)!
It does clock ramp from 800 MHz idle to 3.2 GHz under load, with 900, 1000, 1100, 1300, 1500, 1800, 2200, and 2700 MHz steps in between until it hits 3.2 GHz after 71.6 ms. Article was getting long enough so I just left it at, it reaches 3.2 GHz and stays there even though the spec sheet says it should go higher.
I remoted into the system for testing (Cheese/George had it), and he said it took 3-4 cold reboots for it to come up, and suspected memory wasn't training correctly. So I did all the testing without ever rebooting the system, because it might not come back up if I tried.
Re: Zhaoxin's KX-7000
#28Earlier quoted context omitted.
I'm running a well-optimized 2014 Haswell I5-4590 system with a Radeon 7800 XT in my virtual pinball cabinet. It's handling real-time 3D at 1440p 120fps at medium-high settings and VPX is pretty CPU heavy. My system is probably only a generation or two ahead of the one described (although it's true that Haswell was one of those occasional Intel generations that became legendary for outperforming and generally aging v…
That's very lopsided in favor of the GPU - if VPX is more CPU intensive that the average video game you could probably swap the 7800 xt for something much cheaper and get the same performance.
Yes, I agree. I was actually planning to retire that mobo and CPU after the GFX upgrade but that damn Haswell is so good, I didn't need to. The previous GFX card (a 1080) was the bottleneck getting 120fps reliably. I really didn't expect the i5-4590 to keep up with 120fps at low latency but got surprised.
Re: Zhaoxin's KX-7000
#29Earlier quoted context omitted.
Absolutely a lomg way to go. Interestingly, the chip is rated to run at DDR4-3200 or DDR5, so it's strange C&C got half that. The power issues are likely from by modern standards pre-historical clocking behavior (single P-state to my understanding)!
It does clock ramp from 800 MHz idle to 3.2 GHz under load, with 900, 1000, 1100, 1300, 1500, 1800, 2200, and 2700 MHz steps in between until it hits 3.2 GHz after 71.6 ms. Article was getting long enough so I just left it at, it reaches 3.2 GHz and stays there even though the spec sheet says it should go higher. I remoted into the system for testing (Cheese/George had it), and he said it took 3-4 cold reboots for it…
Tangential but thank you for always providing such detailed benchmarks and insights. Your work is a treasure!
Re: Zhaoxin's KX-7000
#30Love reading these highly detailed analyses. Short version: Zhaoxin's currently competitive with 2010/2011-era AMD and Intel, with some asterisks around RAM speed. There is to my mind a sort of race to get up to "fast enough to host H100 competitor AI hardware" with non-US IP that makes sense to engage in. In those terms, it looks like they're maybe 2 revs away -- I'm not sure what process node the KX7000 is on, but…
"Zhaoxin did not specify what process node they’re using. Techpowerup and Wccftech suggests it uses an unspecified 16nm node."