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Thread: AMD officially releases Ryzen Threadripper 1900X, adds features

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    Re: AMD officially releases Ryzen Threadripper 1900X, adds features

    What X399 motherboards have 4 M.2 ports, much less 10?
    Are we expected to wait for a new generation of motherboards
    with 4 or more U.2 ports? I do like the idea of NVMe RAID
    support in future AMD chipsets, but please show me
    4 connectors for at least 4 bootable NVMe SSDs in RAID-0
    withOUT an AIC (add-in card).

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    Re: AMD officially releases Ryzen Threadripper 1900X, adds features

    Maybe you guys & girls can help me with a question that's been in my head since they released the specs: Why does the 1900X come with the same TDP as the other two TR when it comes with half the cores and cache?

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    Re: AMD officially releases Ryzen Threadripper 1900X, adds features

    Quote Originally Posted by Corky34 View Post
    Maybe you guys & girls can help me with a question that's been in my head since they released the specs: Why does the 1900X come with the same TDP as the other two TR when it comes with half the cores and cache?
    Why not? The actual power usage will no doubt be slightly lower, but the TDP is a measure of which heatsink they expect you to use. This won't be used in the sort of machine where a piddly little heatsink is expected or welcome, so you want something massive with huge fans to keep it on boost as much as possible.

    How much the power usage changes will also be interesting. Driving 64 PCIe lanes requires quite a bit of juice, same with quad memory channels.

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    Re: AMD officially releases Ryzen Threadripper 1900X, adds features

    TDP isn't a measure of which heatsink they expect you to use, it's the maximum amount of heat generated and you'd expect a chip with half the cores and cache to generate less heat, it either seems like bad marketing or something else is going on, I'd also dispute that someone using a 1900X would want a massive heatsink with huge fans to keep it on boost as much as possible.

    If the 1900X needs something massive with huge fans to keep it on boost as much as possible then does that mean the 1950X with twice the cache and core count can't maintain that same level of boost for the same time?

    Something just seems off with its TDP as it's almost twice that of the R7 1800X and for that extra 85W TDP you get an 100Mhz more of boost and another memory controller.

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    Re: AMD officially releases Ryzen Threadripper 1900X, adds features

    Quote Originally Posted by Corky34 View Post
    TDP isn't a measure of which heatsink they expect you to use...
    Sorry, but "Thermal Design Power" is a guide for how much power the system needs to get rid of. Hence they get lumped into bands, you don't get a 43.6W CPU you get a 65W CPU because no-one makes a 43.6W heatsink. If the CPU dissipates 65.1W then it becomes a 95W TDP part.

    Edit: If you want to look at it another way, not that much of the CPU die is used up by that second CCX so most of the silicon is still active. The drop won't be that much, keeping it in the same band.

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    Re: AMD officially releases Ryzen Threadripper 1900X, adds features

    They don't get lumped into bands though, at least not bands of 90 - 180W, the Phenom II ranged from 65W all the way up to 140W with 80, 95, and 125W between those two bookends, the same TDP for the 1950X and 1920X could be seen as lumping two similar chips together but lumping the 1900X into that same TDP range just seems like something odds going on or bad marketing.

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    Re: AMD officially releases Ryzen Threadripper 1900X, adds features

    Quote Originally Posted by Corky34 View Post
    They don't get lumped into bands though, at least not bands of 90 - 180W, the Phenom II ranged from 65W all the way up to 140W with 80, 95, and 125W between those two bookends, the same TDP for the 1950X and 1920X could be seen as lumping two similar chips together but lumping the 1900X into that same TDP range just seems like something odds going on or bad marketing.
    OK, let's say they call it a TDP of 160W instead of 180W. Where do I get my 160W motherboard and heatsink? As a system builder, would you want to stock more parts when the 180W parts would do?

    If they release a non-X 1900 part then I expect a new TDP band, that would have enough sales to warrant it.

    So yes the Phenom II had a wide range of TDPs available, but most of the time people seem to buy the biggest aftermarket cooler they could lay hands on regardless of TDP. I did, I still using the thing on my Fx8350 and it is way quieter than the 125W part it came with so money well spent. You have to remember where those Phenom TDP ratings came from:

    Initially there were 95W and 125W rated motherboards. That cost reduces the cheaper OEM machines in PSU, heatsink and VRM costs. The high volume CPUs could get away with really cheap aluminium heatsinks, so 45W and 65W parts came out (I have a 45W Athlon somewhere that unlocks to a 3 core Phenom II). Then AMD blew past the upper 125W limit and had to release 140W parts, which meant new motherboards.

    So I have to ask, I can see why you would like a lower power consumption on your processor, but why do you want to mess with the TDP? It would be like looking at a car and saying that you like the fuel saving of the slightly smaller engine model, but can you have skinny wheels and a pea-shooter width exhaust pipe please because you want it to look cost reduced.

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    Re: AMD officially releases Ryzen Threadripper 1900X, adds features

    Quote Originally Posted by scaryjim View Post
    What's the use case for a bootable array of 10 NVME drives?!
    I'm guessing mostly home users.......lol

    Just wonder who would buy 10 NVME drives to RAID and then decide a boot drive is too much extra cost....
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    Re: AMD officially releases Ryzen Threadripper 1900X, adds features

    Quote Originally Posted by DanceswithUnix View Post
    OK, let's say they call it a TDP of 160W instead of 180W. Where do I get my 160W motherboard and heatsink? As a system builder, would you want to stock more parts when the 180W parts would do?
    I would imagine losing 8 cores and 16Mb of cache would net you a little more than 20W, if you want a heatsink with a 160W TDP rating then the Shadow Rock Slim is bang on that TDP, however it's not about matching the exact motherboard and heatsink with the exact CPU or system builders stocking more parts, it's about not wasting money, resources, and energy on overly engineered products.

    If it was about system builders stocking to many parts then why not just use a single 200W TDP heatsink with fixed 3000rpm fans for everything.

    Quote Originally Posted by DanceswithUnix View Post
    So I have to ask, I can see why you would like a lower power consumption on your processor, but why do you want to mess with the TDP? It would be like looking at a car and saying that you like the fuel saving of the slightly smaller engine model, but can you have skinny wheels and a pea-shooter width exhaust pipe please because you want it to look cost reduced.
    Analogies rarely work, but in this case it would be more like buying a car that can only get up to 120Mph but fitting it with a speedo that reads 180Mph and fitting with Y rated tiers instead of U.

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    Re: AMD officially releases Ryzen Threadripper 1900X, adds features

    Quote Originally Posted by Corky34 View Post
    Maybe you guys & girls can help me with a question that's been in my head since they released the specs: Why does the 1900X come with the same TDP as the other two TR when it comes with half the cores and cache?
    It maybe down to how all the TR CPUs XFR is 4 cores 4.2GHz.
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    Re: AMD officially releases Ryzen Threadripper 1900X, adds features

    I'll take one bootable Highpoint SSD7101A-1 with 4 x Samsung 960 Pro
    installed in an AMD X399 motherboard, starting out. If it works,
    then I'll take two bootable Highpoint SSD7101A-a with 8 x Samsung 960 Pro,
    or 4 x Samsungs + 4 x Intel M.2 Optanes. One TR 1900X also.

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    Re: AMD officially releases Ryzen Threadripper 1900X, adds features

    Quote Originally Posted by Corky34 View Post
    If it was about system builders stocking to many parts then why not just use a single 200W TDP heatsink with fixed 3000rpm fans for everything.
    All about volume of sales. If you are going to sell 10M units then saving 50p per unit on a cheaper fan saves a lot of money. A high end platform won't sell in those sorts of quantities, so spending 50K on engineering and validating a new heatsink isn't ever going to get made back.

    Quote Originally Posted by Corky34 View Post
    Analogies rarely work, but in this case it would be more like buying a car that can only get up to 120Mph but fitting it with a speedo that reads 180Mph and fitting with Y rated tiers instead of U.
    Sort of. The tyres are off the shelf, only a pretty special car will get them custom made so just pick the right speed rating. Speedo is another matter, I believe mine goes up to 160mph same as the top of the range model of my car despite my car supposedly topping out at 135. My previouis 1.9 diesel had the same speedo as the 3.2l v6 petrol in the range.

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