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Indecision : 7900x or 7940x Photoscan workload

Thingomy
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I'm building a rig that will be doing some heavy Agisoft Photoscan work, and am struggling a bit. This workload uses mostly multi core, but with some single core in there too.

 

looking at available processors in the price range, it seems somewhat of a no brainer to go for either a 7900x or a 7940x, but I'm struggling ot know which to go for.

 

Core counts suggests that 7940x is the way to go; however Pugit Systems spec a 7900x in their standard systems. Sure the actual clock speed is a bit lower on the 7940x, but it looks almost negligible numbers wise to me. To confuse things, the price is almost identical.

 

Have I missed something? Is there an actual difference here that I'm not seeing?

 

Thoughts? recommendations?

 

 

 

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1 minute ago, Thingomy said:

snip

intel skylake x is really overpriced for what it is. if it relies heavily on multitread, get a 1920x or 1950x. if it depends more on single tread get a 9900k instead

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pic_disp.php?id=47487&width=800&height=8

 

It would seem that it does favour single thread performance above more cores so the i7 9700K sounds like the best value for your money here, given it has the best single thread of all, capacity of running at above 5ghz and still enough multi-threading capacity.

Personal Desktop":

CPU: Intel Core i7 8700 @4.45ghz |~| Cooling: Cooler Master Hyper 212X |~| MOBO: Gigabyte Z370M D3H mATX|~| RAM: 16gb DDR4 3333mhzCL16 G.Skill Trident Z |~| GPU: nVidia Founders Edition GTX 1080 Ti |~| PSU: Corsair TX650M 80Plus Gold |~| Boot:  SSD WD Green M.2 2280 240GB |~| Storage: 1x3TB HDD 7200rpm Seagate Barracuda + SanDisk Ultra 3D 1TB |~| Case: Fractal Design Meshify C Mini |~| Display: Toshiba UL7A 4K/60hz |~| OS: Windows 10 Pro.

Luna, the temporary Desktop:

CPU: Intel Core i7 10700KF @ 5.0Ghz (5.1Ghz 4-core) |~| Cooling: bq! Dark Rock 4 Pro |~| MOBO: Gigabyte Z490 UD |~| RAM: 32G Kingston HyperX @ 2666Mhz CL13 |~| GPU: AMD Radeon RX 6800 (Reference) |~| PSU: Corsair HX1000 80+ Platinum |~| Windows Boot Drive: 2x 512GB (1TB total) Plextor SATA SSD (RAID0 volume) |~| Linux Boot Drive: 500GB Kingston A2000 |~| Storage: 4TB WD Black HDD |~| Case: Cooler Master Silencio S600 |~| Display 1 (leftmost): Eizo (unknown model) 1920x1080 IPS @ 60Hz|~| Display 2 (center): BenQ ZOWIE XL2540 1920x1080 TN @ 240Hz |~| Display 3 (rightmost): Wacom Cintiq Pro 24 3840x2160 IPS @ 60Hz 10-bit |~| OS: Windows 10 Pro (games / art) + Linux (distro: NixOS; programming and daily driver)
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9th gen x299 chips should be showing up in the next few weeks.  I would wait and see how they do.

 

i9-9900k @ 5.1GHz || EVGA 3080 ti FTW3 EK Cooled || EVGA z390 Dark || G.Skill TridentZ 32gb 4000MHz C16

 970 Pro 1tb || 860 Evo 2tb || BeQuiet Dark Base Pro 900 || EVGA P2 1200w || AOC Agon AG352UCG

Cooled by: Heatkiller || Hardware Labs || Bitspower || Noctua || EKWB

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