Intel Core i9-9940X Skylake X 14-Core 3.3 GHz (4.4 GHz Turbo) LGA 2066 165W BX80673I99940X Desktop Processor

Pros: Works fine.

Cons: Cost

Overall Review: I bought this to replace a 7920 that I de-lidded. The de-lid was a fun project and got me a 20 deg drop in temps but I lost 2 memory channels (c and d) so that was a thousand dollar mistake. I like this chip better cause it's clocked higher and runs the same temps as my de-lid 7920. update.... Running fine at 4.5Ghz all core under water. Im happy.

Pros: 18 cores / 36 threads Overclocks with ease Runs cool, about the same as a 'de-lidded' 7980x and all I am currently using is a Corsair AIO H110i The packaging is almost comically over done

Cons: Price. Price. Price - did I mention the price?

Overall Review: System this went in to: Asus WS x299 Sage 128gb GSkill 3866 DDR-4 Samsung 2tb NVMe 2 x 2080ti cards in SLI I game at 4k and so far every game has ran maxed out visually and ran at my current monitors max of 60 FPS. This isn't the best processor for only gaming at the moment, but I hoped it would do decently and it does. For whatever reason, my Asus WS x299 Sage motherboard detects and identifies this processor correctly as having a stock 3.0ghz frequency, but from the very beginning it automatically clocks it at 3.8, even in the BIOS. Now, obviously people buy a K or X processor to overclock it, but for me I always baseline everything at stock frequency and the only way I could do that was to set max CPU multiplier to 30. I can't pull in the reins of this thoroughbred! So far, the only overclocking I have been doing is setting it at 3.8ghz all stock voltages and then let it OC itself in Windows. It will run 4.2 ghz on all 18 cores at 100% with the temps still below the 80's. When not using this PC for gaming or editing tasks, I run Folding@home on it so the CPU gets pegged at 100 and stays there. If I run the Intel Turbo Boost 3.0 suite it then boosts it further and this is where I start getting an occasional crash. Gaming, it will boost up to 4.7ghz but for 24/7 100% use it ran hotter than I like. Keep in mind this is very early testing, having had it for only a couple of weeks. I am sure as I test more with voltage and such it will only get better. So far all manual testing has been done at stock volts.

Pros: I have all 10 cores running at 5.3GHz without a problem with HT on. Very stable. I do have a custom loop and never go over 70C. Mobo EVGA X299 Black.

Overall Review: I am very happy with it.

Pros: - 10 core / 20 thread CPU with 16MB L3 cache with lowest Intel HEDT price per core - Excellent performance in productivity and gaming loads within reasonable costs - Easy overclocking without much drama - soldered HEDT HCC chip larger than mainstream CPU improves heat transfer to CPU heatsink - AVX512 is very useful - 44 PCIe lanes is great - keep plugging in all GPUs and NVMe SSDs you want

Cons: - Intel has nothing on AMD price-wise, still pretty extreme pricing per core - Base frequency is artificially low, there is no practical thermal difference between 3.3GHz and 3.8GHz operation on any decent air cooler - marketing trick to sell more expensive 9900X - Mesh architecture is most definitely inferior to ring-bus performance-wise in most desktop and workstation tasks, and there is no real need for mesh for up to 12 cores - No ECC RAM support - that's HUGE deficiency

Overall Review: Running in TUF Mk2 under Noctua dual tower, upgraded from 7800X. I was considering TR, but 10-15% IPC penalty is not lining up well with my tasks

Pros: For memory bound applications, it's hard to beat quad channel memory and this CPU. I am happy I got it on release day for $500 since the current price is over $800.

Cons: None, really. Runs hot, but most people probably know that. I use a Noctua NH-D15 on an EVGA X299 Micro 1 board, and no cores get above 80C with all 8 cores at full load. (Note: X299 Micro 2 seems to run too hot)

Pros: Fast Chip, great easy install. Hope it lasts a long time

Overall Review: fast service...

Pros: You pay for what you get. This chip works hard, and doesnt let me down

Cons: Cost

Overall Review: You get what you pay for, I dont have problems doing what I need.

Pros: stable overclocked to 4.59Ghz on all 12 cores

Overall Review: good quality