3 ms·

Related and also interesting: Ryzen 7950X3D with One CCD Disabled - The 7800X3D Preview https://www.techpowerup.com/review/ryzen-7800x3d-performance-preview/ h

Related and also interesting: Ryzen 7950X3D with One CCD Disabled - The 7800X3D Preview https://www.techpowerup.com/review/ryzen-7800x3d-performance-preview/ https://www.techpowerup.com/review/ryzen-7800x3d-performance...

Macha 4y ago
The one caveat here is that actual 7800X3Ds might not be binned as well as the top end model, so I'd wait for real 7800X3D reviews if you're thinking about pre-ordering one based on this experiment.
- doikor 4y ago
  Based on tech powerup tests the cores with the v-cache do not clock that high. The advertised 700MHz higher clockrate is for the non v-cache cores. I highly doubt AMD would release a part that does not hit the advertised numbers (which on the 7800X3D apply to the v-cache cores as that is all it has) > A 700 MHz frequency difference may sound like lot first, but as the data in our full Ryzen 9 7950X3D review shows today, the frequencies significantly above 5 GHz are only reachable on the second CCD, the one that does not have the cache, so it can run higher voltages, which lets it achieve those clock speeds.
justsomehnguy 4y ago
> Where AMD X3D is taking the wrecking ball to Intel is power consumption. Our simulated Ryzen 7 7800X3D is one of the most energy-efficient CPUs we ever tested. In gaming it consumes 44 W on average, while the competition is wasting a ton of energy to achieve the same FPS: 13900K (143 W), 13700K (107 W), 13600K (89 W)—all more than twice the power usage than AMD's new gaming gem. Wow. I don't needed such CPU now, but if I needed a low-noise/silent but performant PC I would definitely look at this one.
- Semaphor 4y ago
  Yeah, I’m pretty happy with my older and slower 3600, but after the preview I thought this might be an interesting upgrade in the future after prices for AM5 boards, DDR5, and the CPUs fall.
- WeylandYutani 4y ago
  I often game at night and less noise is definitely a point in favour to AMD!

Macha 4y ago

The one caveat here is that actual 7800X3Ds might not be binned as well as the top end model, so I'd wait for real 7800X3D reviews if you're thinking about pre-ordering one based on this experiment.

doikor 4y ago
Based on tech powerup tests the cores with the v-cache do not clock that high. The advertised 700MHz higher clockrate is for the non v-cache cores. I highly doubt AMD would release a part that does not hit the advertised numbers (which on the 7800X3D apply to the v-cache cores as that is all it has) > A 700 MHz frequency difference may sound like lot first, but as the data in our full Ryzen 9 7950X3D review shows today, the frequencies significantly above 5 GHz are only reachable on the second CCD, the one that does not have the cache, so it can run higher voltages, which lets it achieve those clock speeds.

justsomehnguy 4y ago

> Where AMD X3D is taking the wrecking ball to Intel is power consumption. Our simulated Ryzen 7 7800X3D is one of the most energy-efficient CPUs we ever tested. In gaming it consumes 44 W on average, while the competition is wasting a ton of energy to achieve the same FPS: 13900K (143 W), 13700K (107 W), 13600K (89 W)—all more than twice the power usage than AMD's new gaming gem. Wow. I don't needed such CPU now, but if I needed a low-noise/silent but performant PC I would definitely look at this one.

Semaphor 4y ago
Yeah, I’m pretty happy with my older and slower 3600, but after the preview I thought this might be an interesting upgrade in the future after prices for AM5 boards, DDR5, and the CPUs fall.
WeylandYutani 4y ago
I often game at night and less noise is definitely a point in favour to AMD!