PCPer Mailbag #46 - "Stimulants Needed" Edition

Subject: Editorial | June 1, 2018 - 11:50 PM |
Tagged: pcper mailbag, video, Josh Walrath

It's time for the PCPer Mailbag, our weekly show where Ryan and the team answer your questions about the tech industry, the latest and greatest GPUs, the process of running a tech review website, and more!

We're a little bit late with today's show due to a technical issue transferring bits from Wyoming. But, better late than never?

00:57 - RAM frequency vs. latency?
03:17 - Isolating two network connections on the same PC?
04:44 - NVIDIA's plans to address crypto mining insanity?
08:25 - When to plan a preemptive hardware upgrade?
11:03 - Trouble running older games on modern Windows?
12:21 - Josh & Linux?
14:32 - Solder vs. thermal paste for CPU heat spreader?
16:46 - Josh, alone in the wilderness?
18:02 - Homemade burger tips?
20:00 - Hair care?

Want to have your question answered on a future Mailbag? Leave a comment on this post or in the YouTube comments for the latest video. Check out new Mailbag videos each Friday!

Be sure to subscribe to our YouTube Channel to make sure you never miss our weekly reviews and podcasts, and please consider supporting PC Perspective via Patreon to help us keep videos like our weekly mailbag coming!

Source: YouTube

Video News


June 2, 2018 | 07:38 AM - Posted by misku (not verified)

Succinct question for the next show:


Samsung just announced mass production of 32GB SO-DIMM modules. What's usually the time period between a mass production of a DDR chip and any related product release e.g. a RAM stick?

I couldn't find that information online in reasonable time and I believe you have a lot of experience in this matter. How long do we have to wait for slim 64GB RAM laptops or RAM stick we could purchase? 2-3 months? Half a year? Or maybe it's going to come next year?

Many thanks!

misku

June 2, 2018 | 05:00 PM - Posted by LucidMew (not verified)

You guys upload the podcasts to soundcloud, can you start doing that with the mailbags? Thanks!

June 2, 2018 | 05:02 PM - Posted by Paul A. Mitchell (not verified)

Re: RAM frequency vs. latency?

Crucial prepared a nice table that explains the
numerical relationship between the two:

https://pics.crucial.com/wcsstore/CrucialSAS/images/campaigns/c3-speed-v...

Thus, even though the CAS latency is much longer,
the shorter clock cycle time more than compensates
for the larger CAS latency setting.

June 3, 2018 | 02:23 AM - Posted by WhyMe (not verified)

If you want to apply that to different RAM you could use this equation.

CL/Mhz * 1000 = true latency in ns.

There's a more accurate equation but dividing the CAS setting by the speed and multiplying it by 1k is normally more than enough to know what RAM has the lower real world latency.

June 2, 2018 | 05:24 PM - Posted by Paul A. Mitchell (not verified)

p.s. Just to clarify, in that table prepared by Crucial,
"true latency" = clock cycle time x CAS latency,
e.g.:

2,666 MHz double data rate / 2 = 1,333 MHz DRAM clock rate

1 / 1,333,000,000 Hz = 0.75 nanoseconds

0.75 ns x 18 clock cycles = 13.5 ns

As such, Column Address Strobe ("CAS") is
measured in the number of clock cycles per strobe.

Thus, 18 clock cycles @ 0.75 nanoseconds per clock cycle
= 13.5 nanoseconds of "true latency".

Hope this helps.

June 5, 2018 | 09:29 AM - Posted by Dbsseven

How do NDA's work at PC Per? How long ahead of time do you know about upcoming products? And how do you keep a straight face when discussing rumors/leaks on the podcast?

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