Personal computing discussed

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by techguy
Thu Jul 19, 2018 7:38 pm
Forum: Processors
Topic: Kampman wants 32 Core benchies? Here are a few!
Replies: 44
Views: 1609

Re: Kampman wants 32 Core benchies? Here are a few!

Yes, raw performance matters. However, raw performance is limited by MTBSI. A system that brute-forces a metric of performance by being 2x as big may end up being less useful once the failure rate is taken into account. Certainly if a machine is of similar size, similar cost, and similar power, the...
by techguy
Thu Jul 19, 2018 2:10 pm
Forum: Processors
Topic: Kampman wants 32 Core benchies? Here are a few!
Replies: 44
Views: 1609

Re: Kampman wants 32 Core benchies? Here are a few!

I'm not even sure why we should care about this % of peak number at all. Paying for dark silicon isn't a good thing. I care because the primary purpose of the HPC clusters I help design and run is to run problems very similar to HPCG in terms of workload. Going from 1.5% to 3% means the system cost...
by techguy
Wed Jul 18, 2018 4:22 pm
Forum: Processors
Topic: Kampman wants 32 Core benchies? Here are a few!
Replies: 44
Views: 1609

Re: Kampman wants 32 Core benchies? Here are a few!

An AVX workload or two would be nice. A Handbrake 2-pass 4k transcode would be awesome. Barring that, Asus' ROG Realbench has a quick H.264 video encoding benchmark which should give us *some* idea of encoding performance
by techguy
Wed Jul 18, 2018 11:47 am
Forum: Processors
Topic: Der8Auer ripped[2] Cinebench's threads out!
Replies: 20
Views: 834

Re: Der8Auer ripped[2] Cinebench's threads out!

The problem is one of logical organization of cores. 2-0-2-0 implies that cores 0-7 (or 1-8 if you prefer) will have access to a full 2 channels of memory bandwidth without the need to jump over infinity fabric to send/receive data in memory, and the next set of 8 cores will have to make that hop o...
by techguy
Wed Jul 18, 2018 11:45 am
Forum: Processors
Topic: Der8Auer ripped[2] Cinebench's threads out!
Replies: 20
Views: 834

Re: Der8Auer ripped[2] Cinebench's threads out!

Sure, but anything that scales well doesn't really depend on a single thread's memory bandwidth very heavily. Spreading the bandwidth evenly between dies and pinning processes properly will *always* be preferable to competing over remote resources in my book (simulation HPC and parallel storage sys...
by techguy
Wed Jul 18, 2018 10:32 am
Forum: Processors
Topic: Der8Auer ripped[2] Cinebench's threads out!
Replies: 20
Views: 834

Re: Der8Auer ripped[2] Cinebench's threads out!

I think the real question boils down to whether the memory config will be 2-2-0-0 or 2-0-2-0, as rumors first indicated. 2-2-0-0 is equivalent to 2-0-2-0. All dies on EPYC are directly connected to other dies. https://en.wikichip.org/w/images/3/39/AMD_Naples_SoC.svg https://en.wikichip.org/w/images...
by techguy
Wed Jul 18, 2018 10:00 am
Forum: Processors
Topic: Der8Auer ripped[2] Cinebench's threads out!
Replies: 20
Views: 834

Re: Der8Auer ripped[2] Cinebench's threads out!

He's going to be retesting with a 1+1+1+1 memory channel config in a few weeks too. I know I'm interested in that test versus the 2+0+2+0 config he tested in the video. Has AMD ruled officially on how TR2 memory will be wired up? I kinda stopped looking when the buzz died down. We'll find out if it...
by techguy
Fri Jul 06, 2018 9:05 am
Forum: Graphics
Topic: Vega 64 or GTX 1080 (not TI)?
Replies: 66
Views: 2499

Re: Vega 64 or GTX 1080 (not TI)?

1) if what you say is true then it should be easy enough to demonstrate across a WIDE RANGE of games and not just DX12 - i.e., show me the link 2) even if it is true - big deal. Vega 64 needs 100W more than a 2+ year old GTX 1080 and it's just now, finally beating it? let me know when AMD has somet...
by techguy
Thu Jul 05, 2018 9:07 pm
Forum: Graphics
Topic: Vega 64 or GTX 1080 (not TI)?
Replies: 66
Views: 2499

Re: Vega 64 or GTX 1080 (not TI)?

I have a Freesync monitor as well. Still went with Nvidia. I would rather keep FPS above the low numbers where VRR technologies become truly valuable, than get a slower graphics card and rely on my monitor to bail me out. Have a friend who was in the same boat and did the same thing. He desperately...
by techguy
Thu Jul 05, 2018 10:46 am
Forum: Graphics
Topic: Vega 64 or GTX 1080 (not TI)?
Replies: 66
Views: 2499

Re: Vega 64 or GTX 1080 (not TI)?

I have a Freesync monitor as well. Still went with Nvidia. I would rather keep FPS above the low numbers where VRR technologies become truly valuable, than get a slower graphics card and rely on my monitor to bail me out. Have a friend who was in the same boat and did the same thing. He desperately ...
by techguy
Tue Jun 26, 2018 12:32 pm
Forum: Processors
Topic: Intel Speculative Execution - yet another flaw
Replies: 7
Views: 758

Re: Intel Speculative Execution - yet another flaw

And now TLBleed which is hyperthreading rather than speculative execution. 1. Not that worried about the real-world effectiveness of TBleed from what we've seen so far. It requires highly controlled circumstances to be effective. 2. If you are that worried about TBleed then expect to turn off hyper...
by techguy
Wed Jun 20, 2018 3:11 pm
Forum: Processors
Topic: 16/0 True cores 1% faster then 16/32threads. Threadripper
Replies: 12
Views: 964

Re: 16/0 True cores 1% faster then 16/32threads. Threadripper

There are 2 levers that can be used to extract parallelism from encoding workloads (neither of which are featured in your test case): 1) high bitrates (think Blu-ray quality or higher) 2) high resolution (think 1080p or even 4k) I regularly peg my 10c/20t 7900x @ 100% with Handbrake transcoding from...
by techguy
Mon Jun 18, 2018 11:44 am
Forum: Graphics
Topic: Nvidia Turing GTX1180 Rumors
Replies: 26
Views: 2457

Re: Nvidia Turing GTX1180 Rumors

Thanks for posting that table.

Quick corrections:
GTX 1080 Ti = GP102 and die size = 471 mm^2

Edit: I see you caught that already :D
by techguy
Mon Jun 18, 2018 11:31 am
Forum: Graphics
Topic: Nvidia Turing GTX1180 Rumors
Replies: 26
Views: 2457

Re: Nvidia Turing GTX1180 Rumors

@techguy: The spec comparison in my OP seems to back up your suspicions. Nvidia is potentially leveraging a larger die (for more coarz) and faster GDDR6 RAM to achieve their performance improvements. We should probably define the basis of comparison. I believe that GTX 1180 will be faster than GTX ...
by techguy
Mon Jun 18, 2018 10:25 am
Forum: Graphics
Topic: Nvidia Turing GTX1180 Rumors
Replies: 26
Views: 2457

Re: Nvidia Turing GTX1180 Rumors

I posted this over at beyond3d, figured there are a few people here that may be interested: Re: the leaks about a "new boost clock algorithm" for Turing: It seems to me as though Nvidia's boost clock algorithm is already quite mature, and as such there is minimal clock headroom left for ov...
by techguy
Sun Jun 17, 2018 10:07 pm
Forum: Graphics
Topic: upgrading a graphics card
Replies: 40
Views: 2686

Re: upgrading a graphics card

lmc, please check your private messages.
by techguy
Sun Jun 17, 2018 6:35 am
Forum: Graphics
Topic: upgrading a graphics card
Replies: 40
Views: 2686

Re: upgrading a graphics card

I found a review that should help clear things up: https://www.notebookcheck.net/Zotac-GeForce-GT-1030-Review.229134.0.html The GT 1030, with a MUCH faster CPU than the fastest Richland APU ever made, runs modern games at 1080p/high in the teens and 20s. The only games that do better are The Sims (l...
by techguy
Sat Jun 16, 2018 4:36 pm
Forum: Graphics
Topic: upgrading a graphics card
Replies: 40
Views: 2686

Re: upgrading a graphics card

My first comment was serious, though the second was tongue-in-cheek. That computer almost certainly does not have a power supply capable of supporting a "real" graphics card (i.e. one that requires a power connector), so you will have to buy a new power supply in addition to the graphics c...
by techguy
Thu Jun 14, 2018 3:04 pm
Forum: Graphics
Topic: upgrading a graphics card
Replies: 40
Views: 2686

Re: upgrading a graphics card

Budget friendly please Get a new computer. Even if it's a Richland APU, it's still perfectly capable of powering a "budget friendly" graphics card at 1920x1080 resolution. Not to mention that a new ~$500 OEM computer probably wouldn't even come with discrete graphics anyway (not to mentio...
by techguy
Thu Jun 14, 2018 2:05 pm
Forum: Graphics
Topic: upgrading a graphics card
Replies: 40
Views: 2686

Re: upgrading a graphics card

It's a low-end APU from the Richland generation.

Get a new computer.
by techguy
Fri Apr 13, 2018 2:28 pm
Forum: Processors
Topic: RyZen+ Preorder: DO IT NOW!
Replies: 34
Views: 3575

Re: RyZen+ Preorder: DO IT NOW!

Ryzen+ is a bit of a damp squib. The leaked benchmarks prove that there's minimal IPC gain, which was to be expected because this isn't a new architecture, it's a minor tweak for the new process; Also, this new process that seems to have released very little additional clockspeed headroom at the hi...
by techguy
Thu Apr 05, 2018 6:38 am
Forum: Graphics
Topic: Video card prices
Replies: 343
Views: 30318

Re: Video card prices

With the inevitable cryptocoin mining crash beginning to take hold (coin values are down to a third of their mid-December peak), a few graphics cards are actually in stock at your favorite e-tailers. The generous folks at Newegg have recently dropped their asking price for the miners' favorite Rade...
by techguy
Sat Feb 03, 2018 4:36 pm
Forum: General Software
Topic: VMWare ESXi 6.5 VS 5.5
Replies: 8
Views: 1330

Re: VMWare ESXi 6.5 VS 5.5

Strange, is vCenter 6.5 not compatible with ESXi 5.5 or something like that? If so I can see why they wouldn't want to update their existing vCenter instance. But this particular department with the new server is in a different office and country, with very little reason to need to be externally ma...
by techguy
Sat Feb 03, 2018 8:50 am
Forum: General Software
Topic: VMWare ESXi 6.5 VS 5.5
Replies: 8
Views: 1330

Re: VMWare ESXi 6.5 VS 5.5

Your sysadmin needs to upgrade vCenter to support ESXi 6.5. Sounds like he doesn't want to. Unless of course he communicated the following to you, and you have not relayed that information: vCenter upgrades technically won't disrupt any production workloads and could be done at almost any time. That...
by techguy
Sun Jan 28, 2018 8:42 am
Forum: Graphics
Topic: Video card prices
Replies: 343
Views: 30318

Re: Video card prices

You guys will have to excuse some of my ignorance and lack of knowledge here, but I have a couple of questions, and then a proposition. First... ⋅ Which specific cryptocurrencies are causing the run on GPUs? ⋅ Of those currencies, who controls or has the ability to make changes ...
by techguy
Tue Jan 09, 2018 3:30 pm
Forum: Graphics
Topic: Video card prices
Replies: 343
Views: 30318

Re: Video card prices

I thought about buying a 1080 Ti this week for 4k gaming. I checked prices @ MicroCenter, Newegg, and Amazon over the past few days. MicroCenter was straight up OUT of gaming graphics cards above GTX 1050 (now they have a few 1060 in stock), Newegg and Amazon didn't have any available for less than ...
by techguy
Tue Jan 02, 2018 11:30 am
Forum: Processors
Topic: H.265 decode requirements with Plex
Replies: 57
Views: 9595

Re: H.265 decode requirements with Plex

I'd open a ticket with them. Plex support? :lol: No such thing. I've been using Plex for years and as much as I love it when it works, it is literally the worst supported piece of software I have ever used. Plex has user forums but rarely does a Plex employee post and most issues go unresolved for ...
by techguy
Mon Jan 01, 2018 9:35 pm
Forum: TR Sports
Topic: NFL 2017
Replies: 145
Views: 19683

Re: NFL 2017

9ers fans will feel very awkward if Jimmy G isn't their QB next season. After all, his contract just ended :lol: Zero chance that happens aside from some career-ending injury in the off-season, but even if it did happen then my point would be proven as the San Francisco Jimmy Garoppolos would go do...
by techguy
Mon Jan 01, 2018 9:34 pm
Forum: TR Sports
Topic: NFL 2017
Replies: 145
Views: 19683

Re: NFL 2017

Redocbew wrote:
As a 49ers fan myself I appreciate the sentiment, but I don't think that's quite how things works. :lol:


I was only half serious, as a life-long Niners fan myself ;)
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