re: PC Discussion - Gaming, Performance and Enthusiasts

The Alienware 27" 1440p 360Hz QD-OLED refurb is $599 on Dell outlet. $899 new.

10% off coupon: 841010AW2

$539.

LINK

The case was $60+$15 for a 300mm pcie riser.

The rest of the build... I couldn't tell you. I've had these parts in another ITX build for a while

And it's still a beast

Finally finished the beast. My last time touching this AM4 ITX build

Upgraded from a Sentry 2.0 case to a Dan A4 H20, 2070 Super to 4080 Super, and got a Fractal S24 V2 240 MM AIO and am using Noctua fans with it.

Went with a non-RGB all black/silver look. Didn't connect the RGB on the AIO CPU block. Looks pretty great.

Final parts list:

PCPartPicker Part List: https://pcpartpicker.com/list/PHT9MV

CPU: AMD Ryzen 7 5800X3D 3.4 GHz 8-Core Processor (Purchased For $299.99)
CPU Cooler: Fractal Design Lumen S24 RGB V2 56 CFM Liquid CPU Cooler (Purchased For $109.99)
Motherboard: Gigabyte B550I AORUS PRO AX Mini ITX AM4 Motherboard (Purchased For $179.99)
Memory: TEAMGROUP T-Create Expert 32 GB (2 x 16 GB) DDR4-3200 CL14 Memory ($189.99)
Storage: Western Digital Black SN750 500 GB M.2-2280 PCIe 3.0 X4 NVME Solid State Drive (Purchased For $79.99)
Storage: SK Hynix Gold P31 2 TB M.2-2280 PCIe 3.0 X4 NVME Solid State Drive (Purchased For $149.99)
Video Card: NVIDIA Founders Edition GeForce RTX 4080 SUPER 16 GB Video Card (Purchased For $999.99)
Case: Lian Li A4-H20 X4 Mini ITX Desktop Case (Purchased For $154.99)
Power Supply: Corsair SF750 (2018) 750 W 80+ Platinum Certified Fully Modular SFX Power Supply (Purchased For $169.99)
Total: $2334.91
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2024-06-27 10:20 EDT-0400


Did some mild undervolting on both the 5800x3d and the 4080 Super.

Got the 5800x3d with PBO2 Curve Optimizer enabled:

115W PPT (reduced from 142W Stock)
90A TDC (reduced from 95A Stock)
115A EDC (reduced from 140A Stock)

-20 on Cores 4 and 5
-25 on all other cores

It doesnt exceet 83 degrees C under stress testing, and hits between 4.35 and 4.4 on all cores.Pretty much better thermals with better than stock performance.

Also have the 2 fractal fans set at 1300 RPM, and the AIO Pump set at 3100 RPM. Its fairly quiet.

For the 4080 Super, I played with the voltage frequency curve, and I got it to routinely hit 2820 MHz during stress testing at 950 mV, while not exceeding 61 degrees C. I have not tried OC'ing the memory yet - my old 2070 Super was a great memory oc'er with the Samsung GDDR6, I'm curious how this Micron GDDR6X does.

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I thought it was pretty well known that the only changes were smaller ones under the hood. That's what all the articles have said since earlier this year at least.

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I would consider a small bump in the amount of vcache to be a small change, but like I said, only a very mild disappointment.

I was primarily posting that article because I was surprised they are going to release a 9900x3D. Genuinely, genuinely surprised.

That's... my point?

I completely understand why they aren't doing two 3D vcache chips. But the reality is that the 7900x3D does basically nothing well, which is why they've had to sell it for cheaper than the 7800x3D. As such, I don't understand why they are insisting on producing a 9900x3D at all. They should simply produce a 9950x3D, a 9800x3D, and if they need an outlet for six core chips, a 9600x3D.

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Since it's cheaper to make it that way it probably allows them that room to discount it so they're probably not losing much even at discount and allows them to get rid of inventory.

If it sells enough still and they make decent money even at discount no reason not to keep the same skus I guess. The vcache still matters as it slaughters the 7900X at gaming.

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But it's only "cheaper to make" than a hypothetical 9900x3D with both CCDs having 3D vcache.

To bring it out of hypotheticals:

- The 7800x3D is cheaper to produce than the 7900x3D.
- The 7800x3D is better at gaming than the 7900x3D.
- The 7900x is cheaper to produce than the 7900x3D.
- The 7900x is better at productivity than the 7900x3D.

Everyone knows the above, which is why no one wanted the 7900x3D at retail pricing. And at which point you have to sell the 7900x3D for less than the 7800x3D and for nearly the same price as the 7900x, it means your margin is lower on the 7900x3D than either of the other chips.

Which brings me back to my original point: why continue producing a lower margin chip? If you have extra 6 core CCDs with 3D vcache lying around this gen, just roll a 9600x3D out the door with higher margins. Maybe I'm missing something, but I just don't see the logic.

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Yeah but the 7900X3D still slaughters the 7900X at gaming and that's what these chips are for. You're just getting more cores both future proofing and for better productivity over a potential 6 or 8 core.

I can see a spot for it honestly. Some people don't think 8 cores are enough regardless of usage case.

Only AMD knows what the actual performance difference is in what they call minimum to add second versus the added cost. If it's really that small then yeah makes no sense plus higher cost.

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Correct me if I'm wrong, but doesn't the 7900x3D essentially idle the second CCD during gaming, functionally turning it into a 6 core chip for that usage case?

That's great and all, but who is using a 4090 to game at 1080p? Any and all performance ratings using a 4090 should be at 1440 and 4K. Sorry, no 4090 owner is running 1080. I don't know if the results change a bunch, but it matters.