Memory speed on Ryzen has always been a hot subject, with AMD’s 1000 and 2000 series CPUs responding favorably to fast memory while at the same time having difficulty getting past 3200MHz in Gen1. The new Ryzen 3000 chips officially support memory speeds up to 3200MHz and can reliably run kits up to 3600MHz, with extreme overclocks up to 5100MHz. For most people, this type of clock isn’t achievable, but frequencies in the range of 3200 to 4000MHz are done relatively easily, but then looser timings become a concern. Today, we’re benchmarking various memory kits at XMP settings, with Ryzen memory DRAM calculator, and with manual override overclocking. We’ll look at the trade-off of higher frequencies versus tighter timings to help establish the best memory solutions for Ryzen.
One of the biggest points to remember during all of this -- and any other memory testing published by other outlets -- is that motherboard matters almost more than the memory kit itself. Motherboards are responsible for most of the timings auto configured on memory kits, even when using XMP, as XMP can only store so much data per kit. The rest, including unsurfaced timings that the user never sees, are done during memory training by the motherboard. Motherboard manufacturers maintain a QVL (Qualified Vendor List) of kits tested and approved on each board, and we strongly encourage system builders to check these lists rather than just buying a random kit of memory. Motherboard makers will even tune timings for some kits, so there’s potentially a lot of performance lost by using mismatched boards and memory.
ASUS grew impatient waiting for Samsung to reach volume production on its 32GB DDR4 UDIMMs, and so the company instead designed a new double capacity DIMM standard. This isn’t a JEDEC standard, but is a standard that has gotten some attention from ZADAK and GSkill, both of whom have made some of the tallest memory modules the world has seen. These DIMMs are 32GB per stick, so two of them give us 64GB at 3200MHz and, after overclocking effort, some pretty good timings. Two of these sticks would cost you about $1000, with the 3600MHz options at $1300. Today, we’ll be looking into when they can be used and how well they overclock.
These are double-capacity DIMMs, achieved by making the PCB significantly taller than ordinary RAM. More memory fits on a single stick, making it theoretically possible to approach the max of the CPU’s memory controller. This is difficult to do, as signal integrity starts to become threatened as the PCB grows larger and more complex.
Our hardware news coverage has some more uplifting stories this week, primarily driven by the steepest price drop in DRAM since 2011. System builders who've looked on in horror as prices steadily climbed to 2x and 3x the 2016 rate may finally find some peace in 2019's price projections, most of which are becoming reality with each passing week. Other news is less positive, like that of Intel's record CPU shortages causing further trouble for the wider-reaching partnerships, or hackers exploiting WinRAR, but it can't all be good.
Find the show notes below the video embed, as always.
The best news of the week is undoubtedly the expected and continued decrease in memory prices, particularly DRAM prices, as 2019 trudges onward. DRAMeXchange, the leading source of memory prices in the industry, now points toward an overall downtrend in pricing even for desktop system memory. This follows significantly inflated memory prices of the past few years, which was predated by yet unprecedented low prices c. 2016. Aside from this (uplifting) news topic, we also talk about the GN #SomethingPositive charity drive, AMD's price clarifications on Vega, and WinRAR's elimination of a 14-year-old exploit that has existed in third party libraries in its software.
Show notes below the video embed, as always.
Extreme Ultra-Violet Lithography is something of a unicorn in the space of silicon manufacturing, and has been discussed for generation upon generation. EUV only recently started seeing any form of use in mass produced products, with Samsung kicking off high-volume efforts recently. Intel has also made progress with EUV, deviating from its choice of DUV lithography for a struggling 10nm process and instead setting sights on a 7nm option. This is our leading news item in the recap today, with RAM price declines following closely behind.
As always, show notes are below the embedded video.
The memory supplier price-fixing investigation has been going on for months now, something we spoke about in June (and before then, too). The Chinese government has been leading an investigation into SK Hynix, Samsung, and Micron regarding memory price fixing, pursuant to seemingly endless record-setting profits at higher costs per bit than previous years. That investigation has made some headway, as you'll read in today's news recap, but the "massive evidence" claimed to be found by the Chinese government has not yet been made public. In addition to RAM price fixing news, the Intel CPU shortage looks to be continuing through March, coupled in news with rumors of a 10-core desktop CPU.
Show notes below the video for our weekly recap, as always.
Hardware news for the last week has primarily revolved around re-re-releases of hardware, like NVIDIA's GTX 1060 GDDR5X model and AMD's RX 580-not-580. Both are unimaginative, but worth covering. For its part, AMD's RX 580 is an RX 570, just 40MHz faster. It has the same FPU count as the RX 570, despite being named "RX 580." NVIDIA's launch, meanwhile, is a move from 8Gbps GDDR5 to GDDR5X on the 1060 6GB card, which has previously already been pseudo-re-released as a 3GB model and (now gone) 9Gbps model.
Other hardware news includes reduced RAM pricing, SSD pricing, and more. The show notes are below the embedded video, if you prefer articles.
We've been working hard at building our second iteration of the RIPJAY bench, last featured in a livestream where we beat JayzTwoCents' score in TimeSpy Extreme, taking first place worldwide for a two-GPU system. Since then, Jay has beaten our score -- primarily with water and direct AC cooling -- and we have been revamping our setup to fire back at his score. More on that later this week.
In actual news, though, it's still been busy: RAM prices are behaving in a bipolar fashion, bouncing around based on a mix of supply, demand, and manufacturers trying to maintain high per-unit margins. Intel, meanwhile, is still combating limited supply of its now-strained 14nm process, resulting in some chipsets getting stepped-back to 22nm. AMD is also facing shortages for its A320 and B450 chipsets, though this primarily affects China retail. We also received word of several upcoming launches from Intel, AMD, and NVIDIA -- the RTX 2070 and Polaris 30 news (the latter is presently a rumor) being the most interesting.
Frequency is the most advertised spec of RAM. As anyone who’s dug a little deeper knows, memory performance depends on timings as well--and not just the primary ones. We found this out the hard way while doing comparative testing for an article on extremely high frequency memory which refused to stabilize. We shelved that article indefinitely, but due to reader interest (thanks, John), we decided to explore memory subtimings in greater depth.
This content hopes to define memory timings and demystify the primary timings, including CAS (CL), tRAS, tRP, tRAS, and tRCD. As we define primary memory timings, we’ll also demonstrate how some memory ratios work (and how they sometimes can operate out of ratio), and how much tertiary and secondary timings (like tRFC) can impact performance. Our goal is to revisit this topic with a secondary and tertiary timings deep-dive, similar to this one.
We got information and advice from several memory and motherboard manufacturers in the course of our research, and we were warned multiple times about the difficulty of tackling this subject. On the one hand, it’s easy to get lost in minutiae, and on the other it’s easy to summarize things incorrectly. As ASUS told us, “you need to take your time on this one.” This is a general introduction, to be followed by another article with more detail on secondary and tertiary timings.
Hardware news hasn’t slowed since Computex; in fact, this week has been among the busiest in months, with several news items out of the “Big Three” manufacturers. NVidia has seemingly purchased too many GPUs, according to GamersNexus sources (and verifying other stories), GPU shipments overall are trending downward, Intel’s CEO “resigned,” and AMD is working on Vega 20 and V340 products.
Other news for the week includes smaller items, like Be Quiet! opening a US service center and expanding US operations. Learn more in the video, or find the show notes below:
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