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Intel Core i9-7900X review: The fastest chip in the world

139 点作者 hvo将近 8 年前

17 条评论

tracker1将近 8 年前
Another issue beyond the fact that the X299 boards are problematic in terms of how many, and&#x2F;or what slots you can and can&#x27;t use seems to be excessive heat and stability in some of the reviews I&#x27;ve seen.<p>I&#x27;m still running a i7-4790K at home, and though I&#x27;d like something with more cores... nothing is compelling enough to bring me to switch given the costs involved. If I were building new, would most likely go with an AMD solution.
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cyphar将近 8 年前
... until ThreadRipper.<p>I&#x27;m not a fan of either megacorp (though I prefer Intel because their stuff works much better historically on GNU&#x2F;Linux), but it should be painfully obvious that &quot;i9&quot; is just a reaction to the threat of ThreadRipper from AMD (which is still going to be more powerful and <i>far</i> more affordable than i9 when it launches).<p>EDIT: To be fair, they do mention this in TFA:<p>&gt; That these chips are currently little more than a product name and a price [...] is a strong indication that Intel was taken aback by AMD&#x27;s Threadripper, a 16-core chip due for release this summer.
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jitl将近 8 年前
The HN title feels like an editorial by admission. The full title is<p><i>&gt; Intel Core i9-7900X review: The fastest chip in the world, but too darn expensive<p>&gt; When eight-core Ryzen costs £300, do any of these new Intel chips make sense?</i>
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msimpson将近 8 年前
Between the Intel Core i9-7900X and AMD Ryzen 7 1800X there is a $540 price difference.<p>But for that extra cost you get four more threads at a higher clock rate, twenty extra PCIE lanes, a 500 MHz higher turbo clock speed, and double the memory bandwidth.<p>Even with the lesser Intel Core i7-7820X you will get the same thread count but with a higher clock rate, four extra PCIE lanes, still a 500 MHz higher turbo clock speed, and double the memory bandwidth for only $140 more.<p>Now, of course, the AMD Ryzen Threadripper 1950X comes much closer to the i9-7900X price point.<p>However, you will sacrifice single core performance to gain twelve more threads at a lower clock rate. But, you will receive twenty more PCIE lanes, over twice as much L3 cache, and the same memory bandwidth as the i9-7900X.<p>So if your plan is to build a 3D render farm, the Threadripper seems quite appropriate.<p>Although, if you plan to build a workstation on which to model 3D assets and to perform preview renders--the Intel i9 series seems more apt.
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paulmd将近 8 年前
The real problems with Skylake-X are chipset cost, power consumption, shitty partner boards, and TIM. All of these are forgivable given the performance - except the TIM.<p>Chipset cost will come down in 6-12 months after launch like it always does. This is part for the course, at launch X370 boards for Ryzen were going for well over $250 as well.<p>Power consumption is a consequence of AVX512 and the mesh interconnect along with raw core count. Everyone wants higher clocks, more cores, and more functional units. There are no easy efficiency gains anymore, and this is the price - power consumption. This is the &quot;everything and the kitchen sink&quot; processor and it runs hot as a result - but it absolutely crushes everything else on the market. This is no Bulldozer.<p>Board partners with insulators on top of their VRMs was going to come to a head sooner or later. This is the natural outgrowth of form over function, RGB LEDs on everything and stylized heatsink designs that insulate the board instead of actual cooling. The terrible reviews on those boards will sort this problem right out, they will be unusable in their current form.<p>Intel has been cruising for issues with their TIM for years (since Ivy Bridge), this time they finally have a chip that puts out enough heat they can&#x27;t ignore it. Intel can get away with making you delid a $200 i5 or a $300 i7, it&#x27;s not acceptable on a $1000 processor.<p>There is still a market for a 6-12C HEDT chip that can hit 5 GHz overclocked. This thing absolutely smokes Ryzen in gaming at stock clocks let alone OC&#x27;d - single-thread performance is still a dominant factor in good gaming performance and this chip delivers in spades. Combining its leads in IPC and clocks, it&#x27;s fully 33% faster than Ryzen in single-thread performance. This is just a brutal amount of performance for gaming. Unfortunately without delidding you&#x27;re not going to hit good OC clocks given the current TIM. And delidding is a dealbreaker on a $1000 CPU.<p>TIM is the actual core problem with Skylake-X - everything else will sort itself out. Skylake-X with solder would be a winner and Intel would be wise to turn the ship as fast as possible. The 6C and 8C version are priced much more reasonably and will sell great as long as they fix the TIM problem.<p>Intel claims they have problems with dies cracking, but AMD manages to solder much smaller dies, so IMO Intel just doesn&#x27;t have a leg to stand on here. This is not something that should be pushed onto the customer with a $1000 processor - you&#x27;re Chipzilla, <i>figure something out</i>.
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sengork将近 8 年前
What I really wonder is when this chip would have been released if AMD didn&#x27;t come out with Ryzen line up in 2017.
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sliken将近 8 年前
I&#x27;m all for double the memory bandwidth (and more importantly double the memory channels) as long as it&#x27;s not too expensive. But I&#x27;m holding off on buying a new desktop till the AMD Threadripper hits in a few weeks.<p>I suspect that benchmarks do a really poor job of measuring worst case performance... which is what users notice. Things like UI lag and audio skipping. I suspect double the memory bandwidth (assuming a nice fast M.2 SSD) is the limiting factor for heavy workloads made up of independent tasks.
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rbanffy将近 8 年前
&gt; fastest chip in the world<p>Impressive for a x86 as this is, some POWER and SPARC users may disagree with this assessment. In fact, some Xeon users will doubtlessly scratch their heads too.
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pella将近 8 年前
Anandtech: <a href="http:&#x2F;&#x2F;www.anandtech.com&#x2F;show&#x2F;11550&#x2F;the-intel-skylakex-review-core-i9-7900x-i7-7820x-and-i7-7800x-tested" rel="nofollow">http:&#x2F;&#x2F;www.anandtech.com&#x2F;show&#x2F;11550&#x2F;the-intel-skylakex-revie...</a>
turblety将近 8 年前
But once again they have included a second &quot;processor&quot; on each chip with a bunch of restricted backdoors that can not be removed [1]. There have already been bugs [2] and exploits [3] found and therefore no Intel or AMD chip can be used if you care about security and&#x2F;or privacy.<p>If I think Microsoft isn&#x27;t free enough for me, then I can remove Windows and install Linux (or BSD). If I think Chrome is sending my data to Google, then I can remove it and install Firefox.<p>But if don&#x27;t like that Intel can take over my PC at any time, watch my screen, log my keystrokes, prevent me from installing another operating system, manipulate what I see on the screen, and much much more, then there is nothing I can do. I can not remove the second chip or remove the code. I must have a proprietary blob [4] (of who&#x27;s source code no one can see to audit) running on my Intel PC.<p>But the worst thing has to be Intel and AMT&#x27;s complete refusal to provide a clean chip to companies that are trying to provide backdoor free computers. Look at <a href="http:&#x2F;&#x2F;puri.sm" rel="nofollow">http:&#x2F;&#x2F;puri.sm</a> [5] for example. They are trying to provide a PC that does not restrict what operating system or BIOS you run, and have repeatedly contacted Intel to ask them to provide a batch of chips with no ME or AMT installed. Even Google, which sells millions of chromebooks (coreboot preinstalled) have been unable to persuade them. [6]<p>As Intel and AMT are the biggest players and arguably a monopoly of the microprocessor market, they have a responsibility to provide safe and clean processors that customers can truly own. Please try your best not to buy these products until they resolve these issues.<p>[1] <a href="https:&#x2F;&#x2F;libreboot.org&#x2F;faq.html#intelme" rel="nofollow">https:&#x2F;&#x2F;libreboot.org&#x2F;faq.html#intelme</a><p>[2] <a href="https:&#x2F;&#x2F;www.theregister.co.uk&#x2F;2017&#x2F;05&#x2F;01&#x2F;intel_amt_me_vulnerability&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.theregister.co.uk&#x2F;2017&#x2F;05&#x2F;01&#x2F;intel_amt_me_vulner...</a><p>[3] <a href="https:&#x2F;&#x2F;www.intel.com&#x2F;content&#x2F;www&#x2F;us&#x2F;en&#x2F;architecture-and-technology&#x2F;intel-amt-vulnerability-announcement.html" rel="nofollow">https:&#x2F;&#x2F;www.intel.com&#x2F;content&#x2F;www&#x2F;us&#x2F;en&#x2F;architecture-and-tec...</a><p>[4] <a href="http:&#x2F;&#x2F;boingboing.net&#x2F;2016&#x2F;06&#x2F;15&#x2F;intel-x86-processors-ship-with.html" rel="nofollow">http:&#x2F;&#x2F;boingboing.net&#x2F;2016&#x2F;06&#x2F;15&#x2F;intel-x86-processors-ship-w...</a><p>[5] <a href="https:&#x2F;&#x2F;puri.sm&#x2F;learn&#x2F;intel-me&#x2F;" rel="nofollow">https:&#x2F;&#x2F;puri.sm&#x2F;learn&#x2F;intel-me&#x2F;</a><p>[6] <a href="https:&#x2F;&#x2F;libreboot.org&#x2F;faq.html#intel-is-uncooperative" rel="nofollow">https:&#x2F;&#x2F;libreboot.org&#x2F;faq.html#intel-is-uncooperative</a>
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chx将近 8 年前
Careful with these benchmarks. The 6700K and the 6700T shows the same Cinebench R15 on <a href="https:&#x2F;&#x2F;www.notebookcheck.net&#x2F;Intel-Core-i7-6700T-Processor-Benchmarks-and-Specs.196670.0.html" rel="nofollow">https:&#x2F;&#x2F;www.notebookcheck.net&#x2F;Intel-Core-i7-6700T-Processor-...</a> -- click on Show comparison chart below Cinebench R15 - CPU Multi 64Bit. I do not think anyone believes those two CPUs are performing the same -- they are the same Skylake architecture but one is 4-4.2GHz w&#x2F; a 91W TDP while the other is 2.8-3.6GHz w&#x2F; a 35W TDP. The difference is decidedly <i>not</i> 1%.<p>It&#x27;s not that notebookcheck is benchmarking something outlandish: it shows 668 while this Ars article claims 637 for the 6700K, Notebookcheck benchmarked the 6950X to 1859 while Ars has 1786, both are very close.
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rkv将近 8 年前
Out of the loop when it comes to the latest processor technology. How does this chip maintain the same TDP as a 6850K but with 4 more core? Same size (lithography), roughly the same freq, memory size&#x2F;types.
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dis-sys将近 8 年前
&gt; fastest chip in the world<p>what a huge load of biased non-sense! I have a machine pretty similar to the one mentioned in the article below, it is using Intel processors released ages ago, in fact they were from decommissioned servers from some random data centres. I&#x27;d willing to bet that machine with &quot;the fastest chip in the world&quot; is significantly slower&#x2F;more expensive than mine when it comes to my long list of day to day development tasks.<p>Oh, don&#x27;t forget to mention the fact that the &quot;fastest chip in the world&quot; can reach &gt;100 degrees when fully loaded. Maybe Intel should pay some review sites to claim it to be the processor most suitable for cooking a meal.<p><a href="https:&#x2F;&#x2F;www.techspot.com&#x2F;review&#x2F;1218-affordable-40-thread-xeon-monster-pc&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.techspot.com&#x2F;review&#x2F;1218-affordable-40-thread-xe...</a><p>In case you want to argue that my machine has two Xeon - you can actually order one single Xeon from newegg.com which is more recent, put it into a consumer motherboard and beat the xxx out of i9-7900x. There is no way a 10-core Intel processor could possibly be the &quot;fastest chip in the world&quot;.
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polskibus将近 8 年前
I&#x27;m a bit disappointed - it said &quot;review&quot; in the title, but there are no interesting details or tests inside.
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Frogolocalypse将近 8 年前
Am i the only person to read that and think &quot;a couple of reasons to buy and a whole bunch to not&quot;?
gcb0将近 8 年前
why does the title says exactly the opposite of the article?<p>maybe if it ended with &quot;for very specific cases&quot; it would be more true.
fasterthanjim将近 8 年前
&quot;I wanna go fast!&quot; - Ricky Bobby
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