Chat tema ljubitelja hardvera

Ja nisam impresioniran, ne sjaji joj se bivši film u ocima i sjene su lose. Nema RTX - nije realisticno

 nisi ništa propustio - par slikica ocvale milfače obješenih sisona i razvaljenih usta u pozi pijana-sam-i-riga-mi-se, koje je nekako u svojoj glavi zamijenila za baš-sam-sexy selfije

ma imaš na netu i njezin uradak, onaj sevkin prvi je ipak bolji

 s kim se ti boriš?

Why AMD Had to Use HBM2

There’s more to it, though. HBM2 critically allows AMD to run lower power consumption than GDDR5 would enable, given the Vega architecture.

Speaking with Buildzoid, we know that Vega: Frontier Edition’s 16GB HBM2 pulls 20W max, using a DMM to determine this consumption. This ignores the voltage controller’s 3.3v draw, but we’re still at 20W memory, and no more than an additional 10W for the controller – that’s less than 30W for the entire memory system on Vega: Frontier Edition.

We also know that an RX 480 uses 40-50W for its 8GB, which is already a significant increase in power consumption per-GB over Vega: FE. The RX 480 also has a memory bandwidth of 256GB/s with 8GB GDDR5, versus Vega 64’s 484GB/s. The result is increased bandwidth, the same capacity, and lower power consumption, but at higher cost to build. In order for an RX 480 to hypothetically reach similar bandwidth, power consumption would increase significantly. Buildzoid calculates that a hypothetical 384-bit GDDR5 bus on Polaris architecture would push 60-75W, and an imaginary 512-bit bus would do 80-100W. For this reason alone, HBM2 saves AMD from high power budget that would otherwise be spent solely on memory. This comes down to architectural decisions made years ago by AMD, which are most readily solved for with HBM2, as HBM2 provides greater bandwidth per watt than GDDR5. HBM is effectively a necessity to make Vega at least somewhat power efficient while keeping the higher memory bandwidth. Imagine Vega 56, 64, or FE drawing an additional 70-100W – the world wouldn’t have it, and it’d be among the hottest cards since the GTX 480 or R9 290X.

The Vega architecture is clearly starved by memory bandwidth, too: Overclocking HBM2 alone shows this, as its gains are greater than just core clock increases. AMD didn’t have another choice but to go with HBM2, even though costs would be roughly one-third on the memory. GDDR5 might be possible, but not without blowing power consumption through the roof or losing on performance by limiting bandwidth.

AMD provided GN with a statement pertaining to choices revolving around HBM2, which reads as follows:

“AMD chose HBM2 memory for Vega because this advanced memory technology has clear benefits on multiple fronts. HBM2 is a second-generation product that offers nearly twice the bandwidth per pin of first-generation HBM thanks to various refinements.

“As we noted in the Vega whitepaper, HBM2 offers over 3x the bandwidth per watt compared to GDDR5. Each stack of HBM2 has a wide, dedicated 1024-bit interface, allowing the memory devices to run at relatively low clock speeds while delivering tremendous bandwidth. Also, thanks to die stacking and the use of an interposer, Vega with HBM2 achieves a 75% smaller physical footprint for the GPU die plus memories versus a comparable GDDR5 solution.

“The combination of high bandwidth, excellent power efficiency, and a compact physical footprint made HBM2 a clear choice for Vega. We have no plans to step back to GDDR5.”

AMD ended up opting for two stacks of HBM2 on the current Vega cards, which limits its bandwidth to Fury X bandwidth (2x 1024-bit Vega vs. 4x 1024-bit Fury X), ultimately, but AMD does benefit in the bandwidth-per-watt category. That’s the crux of this decision.

linkao sam ti tekst gdje je sve objašnjeno, a još imaju i priopćenje amd-a po tom pitanju - doduše bez konkretnih izračuna potrošnje od strane amd-a

dakle, ako ti misliš da znaš nešto više, probaj sam mjeriti potrošnje ove i one kartice, sa i bez memorije ili sa jednom ili drugom vrstom, pa fino objavi istraživanje i demantiraj ih

nema potrebe za "how-yes-no" forama meni koji samo prenosim informacije iz razloga jer sam te pokušao nečemu naučiti, a ne da lupetaš i izvlačiš pretpostavke iz dupeta i predstavljaš ih na forumu kao činjenice

Gledaj, pročitaj još jednom što sam ti napisao i reci mi ima li ti logike, pusti sad spike od ovih likova, ne kažem da su u krivu 100%, ali previše je tu aproksimacija, i memorija na rx480 sigurno ne troši 50 w, niti na 1080ti 100w, jer bi onda i na 1080 bila raspodjela 90w jezgra, 90w memorija, što naravno da nije istina, pogledaj kakvo je hlađenje za jedno, a kakvo za drugo.

Imam rx470 koja nema heatsink preko memorije, i mjerio sam joj temperaturu infracrvenom kamerom dok je jezgra bila na vodi a memorija gola, i nije išla preko 75-80 stupnjeva, što naravno nije moguće ako troši 50w lol.

Ponekad treba samo malo kritički razmišljat. Vega 64 ima pola memorije od frontier, 8gb, dakle ajmo reći da troši duplo manje, 10W, i onda ako je gddr5 tri puta manje efikasan to je uvrh glave 30w, a ne 100w.

 hehe, ti meni govoriš da trebam kritički razmišljati, a jel to primjenjuješ na sebi?

dao sam ti analizu ekipe koja ipak kuži ponešto, a nasuprot toga su tvoja nagađanja

jel ti palo na pamet da grijanje različitih komponenti nemereš uspoređivati samo po potrošnji, i obrnuto? jel ti palo na pamet da se možda memorija sa 100w grije puno manje od čipa koji troši 100w jer nisu jedna te ista stvar i da po tome što čip treba jače hlađenje od memorije nemereš ovako ofrlje mjeriti potrošnju?

uostalom jesi li uopće pročitao što su im iz amd-a rekli? na prvo mjesto su stavili 3x veću propusnost po watu u usporedbi s gddr5, a propusnost im je iznimno bitna - što su fino u tekstu dokazali perfomansama koje na vegi rastu ocanjem memorije više nego jezgre

As we noted in the Vega whitepaper, HBM2 offers over 3x the bandwidth per watt compared to GDDR5.

jbt što ameri dobiju za kilu dolara

https://www.bhphotovideo.com/c/product/1430438-REG/evga_geforce_gtx_1080_ti.html

 Troškovi dostave, troškovi uvoza, PDV i još marža.

Kad se grafičke počnu proizvoditi u HR, onda smijemo plakati ako će vani biti jeftinije...

Opce poznata stvar je kad fanboju nesto stavis crno na bijelo pisano od strucnih ljudi (pa cak i samog AMD-a u ovom slucaju) da to "nije tako" ako ne ide u njegovu korist. 

 sabotaža

 Sve novije grafičke kartice gase ventilatore kad nisu pod opterećenjem i ispod (recimo) 50 stupnjeva C.

Potpuno u redu i potpuno sigurno za karticu.

Uživaj u tihom računalu.

Negdje sam pročitao da gddr5 troši oko 0,2 W po 1Gb/s, sad ako je to 320 Gb/s to iznosi oko 64 W. Pošto je na grafičkoj više memorijskih čipova na svakog otpada otprilike 5-6 W što nije problem ohladiti. 

alpha bf V ryzen 2600 gtx 1070 jedva 50fps ide hahah