Personal computing discussed

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by ptsant
Tue Jul 25, 2017 2:21 am
Forum: Gaming
Topic: Will high GPU prices kill off PC gaming?
Replies: 72
Views: 1419

Re: Will high GPU prices kill off PC gaming?

"High end" has always required a non-trivial cash outlay. What's different today is that more of the cost of a high-end gaming rig is in the GPU, as opposed to other system components. I don't think overall system cost has changed much in roughly 2 decades. I would also add the peripheral...
by ptsant
Tue Jul 25, 2017 2:17 am
Forum: Gaming
Topic: Will high GPU prices kill off PC gaming?
Replies: 72
Views: 1419

Re: Will high GPU prices kill off PC gaming?

Now I'm and now wondering with the outrageous prices of GPUs now if that will end up killing off or doing some major damage to PC gaming? I mean I would I would be pissed off if I couldn't play new games at 2560x1600 considering how much I paid for my display or if I would have to pay an arm and le...
by ptsant
Sun Jul 23, 2017 7:00 am
Forum: Processors
Topic: AMD is back with a vengeance -
Replies: 17
Views: 1067

Re: AMD is back with a vengeance -

Anything that's memory latency or bandwidth bound that doesn't fit in GPU memory. In my line of work, that's basically all of the problems we run (physics simulations). They tend to sweep all of memory evenly, and we buy machines for memory capacity and bandwidth, for the most part. The cache hiera...
by ptsant
Sat Jul 22, 2017 1:51 pm
Forum: Processors
Topic: AMD is back with a vengeance -
Replies: 17
Views: 1067

Re: AMD is back with a vengeance -

Anything that's memory latency or bandwidth bound that doesn't fit in GPU memory. In my line of work, that's basically all of the problems we run (physics simulations). They tend to sweep all of memory evenly, and we buy machines for memory capacity and bandwidth, for the most part. The cache hiera...
by ptsant
Sat Jul 22, 2017 3:11 am
Forum: Processors
Topic: AMD is back with a vengeance -
Replies: 17
Views: 1067

Re: AMD is back with a vengeance -

Waco wrote:
I'm no fan of GPUs for doing HPC work (they're pretty terrible for certain workloads), but yes, the PCIe layout is extremely attractive for many other reasons. :)


What are the workloads that don't execute well on GPUs? I imagine those with lots of loops and conditionals?
by ptsant
Thu Jul 13, 2017 9:10 am
Forum: Graphics
Topic: Holy Mining Crash Batman
Replies: 75
Views: 3314

Re: Holy Mining Crash Batman

Proof of Work is a highly inefficient way of doing things. The energy cost is simply unacceptable. Given that, fundamentally, people invest electricity (ie $) to generate work, we should simply adopt proof of stake and use $ without wasting energy in the intermediate step of calculating useless cryp...
by ptsant
Sat Jul 01, 2017 2:45 pm
Forum: Graphics
Topic: Vega FE Fire Strike, on par with GTX 1080
Replies: 105
Views: 3910

Re: Vega FE Fire Strike, on par with GTX 1080

What's the problem gaming with a Quadro? It's no more like in the old days. I can't confirm for all games of course but they have comparable performance to an equivalent GeForce, some did actually made a review https://hothardware.com/reviews/nvidia-quadro-p6000-and-p5000-workstation-gpu-reviews?pa...
by ptsant
Sat Jul 01, 2017 7:46 am
Forum: Graphics
Topic: Vega FE Fire Strike, on par with GTX 1080
Replies: 105
Views: 3910

Re: Vega FE Fire Strike, on par with GTX 1080

PC Perspective review is up: https://www.pcper.com/reviews/Graphics-Cards/Radeon-Vega-Frontier-Edition-16GB-Air-Cooled-Review Good News: It tends to beat the GTX 1070. Bad News: Only just barely at twice the power consumption. On the other hand, Vega FE is highly competitive with the Quadros in pro...
by ptsant
Thu Jun 29, 2017 2:13 am
Forum: Graphics
Topic: Vega FE Fire Strike, on par with GTX 1080
Replies: 105
Views: 3910

Re: Vega FE Fire Strike, on par with GTX 1080

Like I commented in several places, including in Jeff's story, this is about right. AMD would have done everything to get a token "win" against the 1080, although in truth we are probably looking at a product that is more or less equivalent at the cost of more power. However, it would be u...
by ptsant
Tue Jun 27, 2017 2:29 am
Forum: Processors
Topic: Ryzen and Linux: A cautionary tale
Replies: 38
Views: 1764

Re: Ryzen and Linux: A cautionary tale

I bought a Ryzen CPU intending to use it for both Windows 7 and Linux. Foolishly (for I should know better), I didn't check first whether my distribution supported Ryzen. Finally I discovered my problem: my version of Linux didn't support Ryzen. :-( For what it's worth, I use Mint 16.04 and it work...
by ptsant
Wed Jun 14, 2017 10:13 am
Forum: The Back Porch
Topic: Tell me about the new Crypto-Currency
Replies: 97
Views: 3419

Re: Tell me about the new Crypto-Currency

I think he is in Bitcoin for the "long haul." :o You might want to let him know that, despite what proponents believe, tracing Bitcoin transactions to individuals is trivially easy these days. [/day job] Even when the individual has a personal wallet? Wouldn't that mean matching the IP to...
by ptsant
Thu Jun 08, 2017 3:03 am
Forum: Processors
Topic: What are REAL consumer CPUs?
Replies: 132
Views: 3935

Re: What are REAL consumer CPUs?

Real consumer CPUs? The ARM chips in your phone/tablet/toaster! +1 I wonder hour Moore's Law looks if you "reset" it to ARM rather than intel. Those chips seem to get the kind of jumps in performance that we had in the 2000's and earlier with x86. It won't last. ARM chips have been harves...
by ptsant
Thu Jun 08, 2017 3:00 am
Forum: Processors
Topic: What are REAL consumer CPUs?
Replies: 132
Views: 3935

Re: What are REAL consumer CPUs?

OK after hearing all about AMD and Intel's new "Threadripper" and Core i9 CPUs along with their price tags, I'm beginning to wonder what exactly is a consumer CPU? Don't get wrong, I love having high end hardware but I would have to be making money with it to consider buying what are now ...
by ptsant
Tue Jun 06, 2017 2:49 am
Forum: Graphics
Topic: Budget Graphics for Ryzen?
Replies: 28
Views: 1554

Re: Budget Graphics for Ryzen?

It seems like the only option has been something along the lines of the GT 710. I was hoping for something a little newer than that for around $50-60. Ryzen not having integrated graphics until the APUs is really starting to suck for people wanting budget builds who want the extra cores but don't n...
by ptsant
Tue May 30, 2017 7:55 am
Forum: Graphics
Topic: RX480 Remorse for not buying?
Replies: 28
Views: 1425

Re: RX480 Remorse for not buying?

all the cheap AMD cards have probably been bought by crypto miners The mania is about to crash too. AMD and etailers are just laughing themselves to the bank. Well, that was what the people were saying a few years ago, but bitcoins have been appreciating in value. My mini-farm (2xR9 280X) paid for ...
by ptsant
Tue May 30, 2017 7:03 am
Forum: Processors
Topic: Skylake-X Round 2: 7980XE, 18 COARZ
Replies: 15
Views: 1393

Re: Skylake-X Round 2: 7980XE, 18 COARZ

I guess Intel had been keeping these for 2025, until suddenly ... competition happened. Whatever your preferred platform (AMD or Intel). This is good news. Unless said competition leads to a significant bump in single threaded throughput, most consumer workloads won't give a damn, and so will non g...
by ptsant
Mon May 29, 2017 8:58 am
Forum: Processors
Topic: Skylake-X Round 2: 7980XE, 18 COARZ
Replies: 15
Views: 1393

Re: Skylake-X Round 2: 7980XE, 18 COARZ

I guess Intel had been keeping these for 2025, until suddenly ... competition happened.

Whatever your preferred platform (AMD or Intel). This is good news.
by ptsant
Mon May 29, 2017 4:19 am
Forum: Graphics
Topic: RX480 Remorse for not buying?
Replies: 28
Views: 1425

Re: RX480 Remorse for not buying?

Yeah the RX 580 seems like a bad buy given the power consumption and only ho-hum performance increase. Hopefully AMD will offer something more worthwhile in the mid-range soon. If you find it at nice price, underclock/undervolt is trivial. The chip will certainly run at ~150W, if you want it to. So...
by ptsant
Mon May 29, 2017 3:13 am
Forum: Processors
Topic: VME Broken on AMD Ryzen
Replies: 28
Views: 2618

Re: VME Broken on AMD Ryzen

So could this prevent running old DOS games under DOSBox? I'm still a big fan of old DOS games and those are pretty much 16-bit. Who knows, some of them may even be 8-bit like some really old titles like Dragonworld (1984). DOSbox is not a virtual machine. In addition, if you are running in 64-bit ...
by ptsant
Mon May 29, 2017 3:11 am
Forum: Processors
Topic: VME Broken on AMD Ryzen
Replies: 28
Views: 2618

Re: VME Broken on AMD Ryzen

http://www.os2museum.com/wp/vme-broken-on-amd-ryzen/ This would be of rather minor importance - it's only going to affect 16-bit processes running in V86 mode on a 32-bit OS (or memory manager, JemmEx for FreeDOS being the cited one) - if it weren't for the fact that XP and Server 2003 execute the ...
by ptsant
Fri May 19, 2017 9:07 am
Forum: Apple Sanctuary
Topic: Retiring from gaming, need a MacBook for audio work
Replies: 14
Views: 1154

Re: Retiring from gaming, need a MacBook for audio work

Just be aware that beneath the shiny Apple logo, the differences in hardware can be significant: the base model with from 5 years ago is not at all comparable with the latest i7 with 16GB RAM. And don't consider the Macbook non-Pro/Pro/Air to be even remotely similar. The non-pro Macbook is (computa...
by ptsant
Mon May 15, 2017 10:17 am
Forum: Processors
Topic: Looks like RyZen got caught cheating on benchmarks
Replies: 64
Views: 4743

Re: Looks like RyZen got caught cheating on benchmarks

When I got my Ryzen 1700x, I ran my own assembly hand-coded benchmark from the 90s. I have scores from K5, Pentium, K7, Phenom II, Vishera etc and the code still runs as it is under linux. So I thought it would be nice to see how Ryzen does. The benchmark itself is not particularly interesting, bec...
by ptsant
Thu May 04, 2017 3:03 am
Forum: System Builders Anonymous
Topic: Upgrade my aging FX8350
Replies: 49
Views: 8124

Re: Upgrade my aging FX8350

Hello all I thought I'd give you an update. You may remember that I was perplexed by the fact that my FX8350 would not wake from sleep, requiring a complex ritual every time (hard off, CMOS clear etc). I thought it was approaching end of life and decided to upgrade to a Ryzen 1700X before the appear...
by ptsant
Thu May 04, 2017 2:35 am
Forum: Processors
Topic: Looks like RyZen got caught cheating on benchmarks
Replies: 64
Views: 4743

Re: Looks like RyZen got caught cheating on benchmarks

TR says it all right here. Now admittedly CPU-Z was never a proper benchmarking tool, which is why TR wisely avoided using it, but that's still no excuse for "optimizing" your way to success in microbenchmarks by intentionally ignoring the program code. Especially when those optimizations...
by ptsant
Thu May 04, 2017 2:32 am
Forum: Processors
Topic: Looks like RyZen got caught cheating on benchmarks
Replies: 64
Views: 4743

Re: Looks like RyZen got caught cheating on benchmarks

When I got my Ryzen 1700x, I ran my own assembly hand-coded benchmark from the 90s. I have scores from K5, Pentium, K7, Phenom II, Vishera etc and the code still runs as it is under linux. So I thought it would be nice to see how Ryzen does. The benchmark itself is not particularly interesting, beca...
by ptsant
Thu Apr 27, 2017 2:16 am
Forum: Processors
Topic: AMD Ryzen 5 or AMD FX?
Replies: 12
Views: 1660

Re: AMD Ryzen 5 or AMD FX?

Hoping for some input as my younger brother wants to upgrade his rig a little. He is currently a pretty dated set up from roughly 1-2 years ago (parts bought at various times) Motherboard: MSI - A88XM Gaming. CPU: AMD Athlon X4 880k (shockingly the top supported CPU) GFX: 2GB Gigabyte Radeon R7 360...
by ptsant
Sat Apr 22, 2017 1:21 pm
Forum: Graphics
Topic: Flash your RX480 to an RX580
Replies: 25
Views: 4939

Re: Flash your RX480 to an RX580

so does that nullify 480s "advantage"? PS, before the RX580 launch I lobbied TR to do some investigation into the RX480 vs RX580 frequency/voltage relationships using manual voltage adjustments. That's still something that nobody else has really exclusively covered and it would've given T...
by ptsant
Tue Apr 18, 2017 2:24 pm
Forum: Processors
Topic: 80387 math coprocessors
Replies: 61
Views: 3642

Re: 80387 math coprocessors

The Pentium was the first x86 CPU with a fully pipelined FPU. When designing the Pentium, Intel wanted to go after the Workstation market which was dominated by RISC chips with fast floating point. The Pentium failed at that aim, but a side effect of this was that it had, for the x86 world, a super...
by ptsant
Tue Apr 18, 2017 2:22 pm
Forum: Processors
Topic: 80387 math coprocessors
Replies: 61
Views: 3642

Re: 80387 math coprocessors

All that said, I did get a few extra FPS out of Doom and Doom II on my old 486SX system by running an ancient shareware 8087 emulator. I suppose the game emulated a 387 if it didn't detect the real thing, and the simpler 8087 was faster to emulate. Something else was going on, DOOM (at least, not s...
by ptsant
Tue Apr 18, 2017 5:58 am
Forum: Processors
Topic: 80387 math coprocessors
Replies: 61
Views: 3642

Re: 80387 math coprocessors

one of the reasons the contemporary AMD CPUs (K5-K6) lost to Intel Pentiums, whose FPU actually warranted the name , in many gaming tests. FTFY :D LOL I don't remember the details from that era, although I could probably dig out the reference assembly manuals for the K5 and the Pentium at home. My ...
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