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cpu showdown 7800X3D vs. 13900K

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Result of test by Wired2Fire, a retail flightsimulator computer builder in the UK

7800X3D 105 fps

13900K ....74 fps

 

5800X3D, RTX4070, 600 Watt, one or two 1440p 32" screens, 64 GB RAM, 4 TB  PCle 3 NVMe, Warthog throttle, VKB NXT EVO stick, Honeycomb Alpha yoke, CH quad, 3 Logitech panels, 2 StreamDecks, Desktop Aviator Trim Panel. Crystal Light VR.

 

  • Author

5:00  "They do specialize in flightsimulator at Wired2Fire" - Mark

5800X3D, RTX4070, 600 Watt, one or two 1440p 32" screens, 64 GB RAM, 4 TB  PCle 3 NVMe, Warthog throttle, VKB NXT EVO stick, Honeycomb Alpha yoke, CH quad, 3 Logitech panels, 2 StreamDecks, Desktop Aviator Trim Panel. Crystal Light VR.

 

  • Author

Temperatures. The 7800X3D ran 15 degrees cooler than the 13900K and drew 32 watts less power too.

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5800X3D, RTX4070, 600 Watt, one or two 1440p 32" screens, 64 GB RAM, 4 TB  PCle 3 NVMe, Warthog throttle, VKB NXT EVO stick, Honeycomb Alpha yoke, CH quad, 3 Logitech panels, 2 StreamDecks, Desktop Aviator Trim Panel. Crystal Light VR.

 

That 6000 MHz CAS36 is off-the-shelf Joe Average RAM...put some decent memory in that 13900K and overclock the CPU to its potential, and the numbers will come out much closer.

The AMD CPU isn't affected nearly as much by that slow RAM due to its massive L3 cache, and it can't be overclocked much, if at all, due to heat dissipation issues with the X3D cache piggybacked on top of the CCD.

Bob Scott | President and CEO, AVSIM Inc
ATP Gulfstream II-III-IV-V

Sys1 (MSFS20+24/XPlane12+11): AMD 9800X3D, water 2x240mm, MSI MPG X670E Carbon, 64GB GSkill 6000/30, nVidia RTX4090FE
Alienware AW3821DW 38" 21:9 GSync, 2x4TB Crucial T705 PCIe5 + 2x2TB Samsung 990 SSD, EVGA 1000P2 PSU, 12.9" iPad Pro
Thrustmaster TCA Boeing Yoke, TCA Airbus Sidestick, Twin TCA Airbus Throttle quads, PFC Cirrus Pedals, Coolermaster HAF932 case

Sys2 (P3Dv5/v4): i9-13900KS, water 2x360mm, ASUS Z790 Hero, 32GB GSkill 7800MHz CAS36, ASUS RTX4090
Samsung 55" JS8500 4K TV@60Hz,
3x 2TB WD SN850X 1x 4TB Crucial P3 M.2 NVME SSD, EVGA 1600T2 PSU
Fiber link to Yamaha RX-V467 Home Theater Receiver, Polk/Klipsch 6" bookshelf speakers, Polk 12" subwoofer, 12.9" iPad Pro
PFC yoke/throttle quad/pedals with custom Hall sensor retrofit, Thermaltake View 71 case, Stream Deck XL button box

Sys3 (DCS/P3Dv4/ATS/ETS): AMD 7800X3D, MSI MPG X870E Carbon, Noctua NH-D15S, 64GB GSkill 6000/30, EVGA RTX3090
Alienware AW3420DW 34" 21:9 GSync, Corsair HX1000i PSU, 4TB Crucial T705 PCIe5 + 2TB Samsung 970Evo Plus,
TM TCA Officer Pack
, Saitek combat pedals, TM Warthog, TM RS300 FF wheel/pedals, Coolermaster HAF XB case

While the 7800x3d is the undisputed king of these 1:1 tests, its important to note where it falls short to the 13900 is in background tasks. You can have a LOT more going on with your PC and not suffer much performance impact whereas with the AMD chip if you have many different processes running in the BG it can start to lag.


Despite that, I am happy I made the switch from the 12.9K to the 78x3 as I no longer deal with noise and temps that are cooking the fans in my rig. The lower power draw is nice as well.

Keep the blue part on top...

 

For the gearheads: Ryzen 9800x3D | ASUS Rog Strix B650E-F | MSI RTX 4090 Suprim Liquid X | 64GB DDR5 6000Mhz RAM | NZXT Kraken x72 Cooler | EVGA 1000 PSU

will be very interesting whenever the 9 series x3d comes out.  

5800X3D, 4090FE, 64GB DDR4 3600C16, Gigabyte X570S MB, EVO 970 M.2's, Alienware 3821DW  and 2  22" monitors, Corsair RM1000x PSU,  360MM MSI MEG, MFG Crosswind, T16000M Stick, Boeing TCA Yoke/Throttle, Skalarki MCDU and FCU, Logitech Radio Panel/Switch Panel, Spad.Next

21 hours ago, micstatic said:

will be very interesting whenever the 9 series x3d comes out.  

According to reviews, the 9 X-series (without 3D) is actually pretty disappointing. The X3D-version seems to be postponed to 2025.

38 minutes ago, -Belga- said:

According to reviews, the 9 X-series (without 3D) is actually pretty disappointing. The X3D-version seems to be postponed to 2025.

Right.  x3d is the only type of chip I would consider for flight sim at the moment.  

5800X3D, 4090FE, 64GB DDR4 3600C16, Gigabyte X570S MB, EVO 970 M.2's, Alienware 3821DW  and 2  22" monitors, Corsair RM1000x PSU,  360MM MSI MEG, MFG Crosswind, T16000M Stick, Boeing TCA Yoke/Throttle, Skalarki MCDU and FCU, Logitech Radio Panel/Switch Panel, Spad.Next

  • 2 weeks later...

I have the 7800x3d coupled with the 7900xt 20 gig video. My experience has been excellent.

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