AMD's Ryzen is here!


#124

“Independent”, your conclusion will be more independent if you can compare more benches. the benches will always be biased, for as long as they can be manipulated in one or the other way.

optimisation will close that gap to 10% thats what i think is a realistic expectation.
It will be proofed in future or maybe not :wink:


#125

Hype trains are always a two-sided coin when it comes to fans on both sides of the aisle. Remember the Pentium 4 hype and more recently the Intel Atom Bay Trail and Cherry Trail hype? As it is, Ryzen desktop processors are between Broadwell and Kaby Lake which equates to the claimed 52% IPC (and single-thread) improvement over Bulldozer. This is nothing to be sneezed at no matter how you try cutting it.

Again, CPU power consumption is approximately a cubic function of the voltage you see (link). The lower slope means a huge savings in power draw for the lower frequencies. The higher slope means a huge uptick in power draw for the higher frequencies. Numerically, this means for half of the voltage, we will see about an eighth of the power draw without any additional transistor-level optimization. Better said, for a quarter drop in the voltage, we will approximately half the power draw without any additional transistor-level optimization. In addition, halving the number of cores will halve the power draw, where the processor in this chart is an eight-core configuration. Based on the model in the chart, since the voltage has increased substantially for the higher frequency processors, naturally, following the chart downwards in frequency, we should see far lower power draw given the lower slope and, in turn, lower power levels for the lower frequencies.

To reiterate, the second chart has nothing to do with frequency and per-core performance. Period. I do not know where you are extrapolating this from, but IPC (instructions per clock) does not change with frequency rate. IPC is a constant value, or, in other words, for a given unit of frequency, you get a given amount of performance throughput. As to the chart, all it is saying is the lowest stable voltage an eight-core Ryzen processor can be supplied by for a given clock frequency. This is to say, it is telling the lower the stable voltage, the lower the power draw. Nothing more, nothing less.

Now, the calculations I made were based solely on the 52% IPC improvement. This is why I added the qualifier “and possibly more.” In other words, this is without also taking into account Ryzen’s improved power efficiency and any additional transistor-level optimizations that will inevitably be made for the mobile versions of the architecture. These upcoming Raven Ridge APUs will be able to reach higher clocks as well at the same power level as Bristol Ridge. Even a meager 15% increase in clock rate compared to that Bristol Ridge processor, thanks to increased efficiency and transistor-level optimization on the top of the already 52% IPC improvement, would mean an overall single-core performance improvement of 60%. That would equate to a single-thread Cinebench score of 120 using the 76 reference score of the current Bristol Ridge processor. Note that this is a conservative estimate, meaning more performance is also possible.


#126

Golden quote. Golden.

Maybe. But not all of them can be manipulated. For example, running a benchmark on your own computer. Or asking a friend to run a benchmark. Or just using a “crowdsourced” benchmark website like userbenchmark.com


#127

:stuck_out_tongue: More like tin-plated considering this–and this is coming from a GTX 1060 6GB owner, yours truly:

TL;DR

DX11

On release (July 2016), the GTX1060 was around 12% and 8% better than RX480 in 1080P and 1440P. Now (Dec 2016), the GTX1060 is 2% and 0% better than RX480 in 1080P and 1440P.

DX12

On release (July 2016), the GTX1060 was around 3% and 4% worse than RX480 in 1080P and 1440P. Now (Dec 2016), the GTX1060 is 6% and 6% worse than RX480 in 1080P and 1440P.

Source:
http://www.hardwarecanucks.com/forum/hardware-canucks-reviews/73945-gtx-1060-vs-rx-480-updated-review.html


Once Vega comes out with tile-based rendering, things will end up being more in AMD’s favor. Note: This is in addition to Vega’s design being more powerful and its architecture more efficient. Since Maxwell, Nvidia has used tile-based rasterization as a technique or “trick” to eek out more performance. This has allowed their GPUs with less raw TFLOP throughput to win at game performance. Tile-based rendering will again put AMD on an even playing field with Nvidia, and then all bets are off for Nvidia.

Sources:


https://www.pcper.com/reviews/Graphics-Cards/AMD-Vega-GPU-Architecture-Preview-Redesigned-Memory-Architecture/Primitive-Sh


#129

Let me just add this final thought: the reason Ryzen’s current desktop processors consume so much power is there is an extremely steep slope immediately following the two critical points which are the region of their normal operating clock speeds (3.5 GHz-4.0GHz). One reason of the many aforementioned reasons that Ryzen’s upcoming mobile processors will consume much less power is their normal operating clock speeds are located long before the steep slope begins. I will leave it at that since this conversation is a topic typically reserved to upper-level undergraduate and graduate computer engineering courses and this topic alone could easily consume the rest of this thread for weeks on end.


#130

The most important thing - does it come with a lot of red LEDs, grey and black sharp angled edges, unneccessary bits of plastic and generally look like an alien weaopn from a 90’s film. These are the most important considerations for most people buying any new component as far as I can tell.


#131

Does the stock cooler have RBG effects?

Yes: sells a lot
No: … … … hm hm compares with something rbg or futuristic looking… … hm lets take the rbg one.


#132

Unfortunately, this is typically the case for a good deal of the PC gamers out there. They get sucked into the nonsensical world of brand tribalism and use their gaudy, tacky, overbuilt PC builds as their war paint. Over the years, I myself have switched back and forth between AMD, Intel and Nvidia without any regrets. At the end of the day, it is all about getting the best solution that meets your requirements for your given budget–to heck with brand loyalty and fanboyism.


#133

Here some fresh news to Raven ridge: http://wccftech.com/amd-raven-ridge-ryzen-apu-vega-gpu-leak/

Ryzen cpu’s are best received new cpu’s since years, more on: http://wccftech.com/amds-ryzen-5-well-received-cpu-launch-nearly-decade-survey-reveals/


#135

“Threadripper, AMD says, will try to conquer the high-end desktop CPU space with 16 cores and 32 threads.”

"The Mobile-branded chips will be destined for AMD-powered laptops, which are due later this year and will integrate bits of AMD’s “Vega” graphics tech."
Hmm… We could use this in an Eve device in the future…
Eve L? :stuck_out_tongue:


#136

No thanks, this thing will drain battery like crazy…


#137

It’s not even out yet…

You know that ryzen has a lower tdp than its respective counterparts?


#138

TDP != power consumption. With Intel laptop processors, the power consumption is usually several times lower. For example, my V prototype’s CPU was eating up 1W most of the time.During benchmarks it went up to 7W because that’s where the limit is, but that’s a “special” processor with power consumption being itsmain limit. Regular Core processorsnever reach their TDP: the highest power consumption I’ve seen on my tablet was 12W, and that includes the screen, WiFi and other components. It has a 17W processor. The system’s total power consumption doesn’t even come close to that, even at full load.

Then we can look at Lenovo Ideapad Y700, my friend has one. He manages to dqueeze it down to below 10W, even though the processor’s TDP is 45W. At full load it still doesn’t reach 45W.


#139

Ty for proofing my point.


#140

Take it with a grain of salt


#141

Here the compilation of AMD’s new stuff.
Vega, Whitehaven, naples etc.


#142

Can we do a group order on popcorn for when the AMD laptop processors come out? With all the hype around it, I guess it will be necessary to get popcorn at the lowest price possible…


#143

#144

The first Ryzen-powered laptop has been unveiled. No pricing details though…


#145

I suspect this weighs about 3kg though, so not even close to ultraportable laptops…