The AMD Zen and Ryzen 7 Review: A Deep Dive on 1800X, 1700X and 1700
by Ian Cutress on March 2, 2017 9:00 AM ESTAMD Stock Coolers: Wraith v2
When AMD launched the Wraith cooler last year, bundled with the premium FX CPUs and highest performing APUs, it was a refreshing take on the eternal concept that the stock cooler isn’t worth the effort of using if you want any sustained performance. The Wraith, and the 125W/95W silent versions of the Wraith, were built like third party coolers, with a copper base/core, heatpipes, and a good fan. In our roundup of stock coolers, it was clear the Wraith held the top spot, easily matching $30 coolers in the market, except now it was being given away with the CPUs/APUs that needed that amount of cooling.
That was essentially a trial run for the Ryzen set of Wraith coolers. For the Ryzen 7 launch, AMD will have three models in play.
These are iterative designs on the original, with minor tweaks and aesthetic changes, but the concept is still the same – a 65W near silent design (Stealth), a 95W near silent design (Spire), and a 95W/125W premium model (Max). The 125W models come with an RGB light (which can be disabled), however AMD has stated that the premium model is currently destined for OEM and SI designs only. The other two will be bundled with the CPUs or potentially be available at retail. We have asked that we get the set in for review, to add to our Wraith numbers.
Memory Support
With every generation of CPUs, each one comes with a ‘maximum supported memory frequency’. This is typically given as a number, with the number aligning with the industry standard JEDEC sub-timings. Technically most processors will go above and beyond the memory frequency as the integrated memory controller supports a lot more; but the manufacturer only officially guarantees up to the maximum supported frequency on qualified memory kits.
The frequency, for consumer chips, is usually given as a single number no matter how many memory slots are populated. In reality when more memory modules are in play, it puts more strain on the memory controller so there is a higher potential for errors. This is why qualification is important – if the vendor has a guaranteed speed, any configuration for a qualified kit should work at that speed.
In the server market, a CPU manufacturer might list support a little differently – a supported frequency depending on how many memory modules are in play, and what type of modules. This arguably makes it very confusing when applied at a consumer level, but on a server level it is expected that OEMs can handle the varying degree of support.
For Ryzen, AMD is taking the latter approach. What we have is DDR4-2666 for the simplest configuration – one module per channel of single rank UDIMMs. This moves through to DDR4-1866 for the most strenuous configuration at two modules per channel with dual-rank UDIMMs. For our testing, we were running the memory at DDR4-2400, for lack of a fixed option, however we will have memory scaling numbers in due course. At present, ECC is not supported ECC is supported.
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lakerssuperman - Thursday, March 2, 2017 - link
People like me. I was previously running a 2600k overclocked. Nice chip. Still runs great, but I was looking for an upgrade about a year ago as one of the things I do a lot of is Handbrake conversion for my HTPC. Going to even the newest Intel 4 core got me maybe 20% improvement on one of my major workloads for insane amounts of money and going to the high end to get 8-10 cores was just not justifiable.I ended up buying a used Xeon/X79 motherboard combo for around $300 off ebay. 8 cores/16 threads and it works great for Handbrake. I lost some clock speed in the move so single thread performance took a bit of a hit, but was more than made up for in multi-thread performance. I can still game on this CPU just fine and I don't play the newest stuff right away anyway just because of time constraints.
The X79 platform is fine for what I'm doing with it. Would I like the new stuff? Sure. And if I was in the position I was last year looking for an upgrade I don't see how I wouldn't get an 1800x. It gives me the right balance of features for what I do with my computer.
If I was just gaming, I'd look at Intel currently because their 4 core i5 is the sweet spot for this. But I'm not just gaming so this chip is infinitely more attractive to someone like me. With the price and features I can't see how it isn't a winner and when the 4 and 6 core parts come out at likely higher frequencies, I think they are going to be the real winners for gaming.
rarson - Thursday, March 2, 2017 - link
Ryzen is clearly well-suited to anyone who values high performance in a multitude of usage scenarios over one single usage scenario, especially if one cares about how much money they need to spend to achieve those results.injurer - Friday, March 3, 2017 - link
1800X is definitely designed for enthusiast, and AMD fans, but when you go to 1700X this is a price killer targeting the mainstream. 1700 is on the same boat but at even lower price. All the 3 are 8 core chips and are quite close to the 6900K but at 2-4 times lower price.At the end I really believe AMD are still having to show us the real potential of their architecture. Those chips are just the start. Remember Ryzen design is a new from its core, so they definitely have room to ecpand and enhance it.
bill.rookard - Thursday, March 2, 2017 - link
Well, thing to remember is that for those looking for a new build, they now have a legitimate choice. I still do see in the future that things will only go more multithreaded, and even though the i7-7700k is still a great chip, having more physical cores and resources to throw at it will only help.To that end, again, anyone planning a NEW build from the ground up will be able to seriously consider a Ryzen system.
Worst case, think about it. In the deep dive they had mention of 'competitive resource sharing' with SMT enabled. If you were to disable SMT on Ryzen - it would give you 8 PHYSICAL cores versus the 4 physical/4 logical cores of the 7700k. Without those resources being partially used across 16 threads - all resources would be allocated to the physical cores instead, potentially allowing more processing power per physical core.
There's still quite a bit to be checked out and dug through.
lilmoe - Thursday, March 2, 2017 - link
This. I want 2 things dug deeper in follow ups:1) Single/multi threaded performance with SMT disabled VS SMT enabled.
2) Game comparisons with more sensible GPUs (which actually ship and sell in volume, IE: the ones people actually buy), like the GTX 1060 and/or RX 480.
BurntMyBacon - Friday, March 3, 2017 - link
@lilmoeI agree with 1). Intel had HT for several generations before it was universally better to leave it enabled (still needs to be disabled some times, but these are more the edge cases now).
Not so sure I'm onboard with 2). Pairing a $200 GPU with a $500 processor for gaming purposes seems a little backwards. I'd like to see that (GTX1060 / RX480) gaming comparison on a higher clocked R5 or R3 processor when they are released.
Meteor2 - Friday, March 3, 2017 - link
I'd rather see tests paired with a 1080 Ti. At RX480/1060 level, it's well known the bottleneck is GPU performance not CPU. A 1080 Ti should be fast enough to show up the CPU.lilmoe - Friday, March 3, 2017 - link
@BurntMyBacon @Meteor2Lots of people, like me, are more into CPU power. I'm OK with a mid-range GPU. Gaming is not my top priority, and when I do, It's never above 1080p.
It'd be interesting to see if there are differences. I wouldn't dismiss it, saying the GPU would be the bottleneck so fast.
bigboxes - Sunday, March 5, 2017 - link
I'm with you on that. Gaming is way down in my priority list. I do it occasionally just because I love to see what my hardware can do. I currently have a ultrawide 1080p monitor. When I move to 4K then hopefully midrange GPU will cover that. My CPU is a 4790K. It's great for most tasks. I've been wanting to go to 6/8 core for some time, but the cost for the platform was too high. I think in a couple of years I will seriously think about Ryzen when building a new workstation.rarson - Thursday, March 2, 2017 - link
I am interested in seeing potential improvement due to BIOS updates. Additionally, I'm interested in seeing potential improvement due to better multi-threaded software. My hunch is that AMD is either on-par or better than Intel, or maybe damn near that prediction, so I think the 4-core parts will compare well to the current Skylake SKUs. I also expect them to overclock better than the 8-core chips. I guess we'll just have to wait for them to release.8 physical cores is definitely better than 4 cores with SMT/HTT/whatever you want to call it.