Dell Precision 7560 & Precision 7760 pre-release discussion

Wait....... that screenshot from (http://forum.notebookreview.com/thr...e-dell-precision-7750-machine-forward.833554/) shows the GPU peak at 130 watts on the 7750. Wasn't there a 110 watt limit on the 7750?


And going off on another tangent, the stress test by that article on the CPU and GPU shows that the total power of the CPU and GPU couldn't be sustained over 150 watts combined. Maybe the >180W power said by @Dell-Mano_G was referring to a short burst of load? Or the other possibility could be slightly improved thermals. To be fair, the test in the article was performed with an ambient temperature of 27.5C - 32.5C which is quite high. Since a 1 degree reduction in ambient temp equates to around .7 degrees less component temp, 10-ish more watts could have been squeezed out with a colder room. But the full test showed a PL1 limit of 45 watts. Maybe the 45 watt limit was temperature induced (Considering that the max PL1 limit was 75 watts)?
Looking at the CPU and GPU temperatures in the test, the CPU averages around 83C while the GPU is at 68C.
Hopefully they slightly increase the thermal limit (at least for shorter workloads) in the 7760 since CPU @ 83C and GPU @ 68C is quite chilly for a laptop. Maybe the test didn't put the system in "ultra performance" mode.

 

To quote @Dell-Mano_G specifically, he says, "If there is thermal headroom,..." So, everything about these benchmarks will depend both on the interior laptop chassis and the ambient temperature. The internal temps of 83C and 68C are really great if you want the CPUs and GPUs to be run non-stop for more than a year. Ether mining apps, for example, often stop the GPU if it detects it getting to 70C at their default settings. If the laptop exceeds these limits, then the laptop is no longer focused on longevity. So in your statement 83C and 68C are chilly for a laptop, I would counter, not for a laptop that can run non-stop for half a decade or more.

 

7560 is available to purchase this morning!
https://www.dell.com/en-us/work/sho...bile-workstation/spd/precision-15-7560-laptop
...and 7760.
https://www.dell.com/en-us/work/sho...d/precision-7760/spd/precision-17-7760-laptop
(5560 and 5760 as well)

...Man. Nearly two months from order to delivery. (That's the world we live in now.)
Prices are generally around what I would expect. RTX A5000 price is actually not as bad as I thought it would be (expecting perhaps around $2,500). Still, $1,000 upgrade over RTX A4000 when the cards likely perform around the same is a bit crazy. And whereas normally the "Quadro premium" makes the Precision GPUs seem expensive, given what desktop cards are going for these days, $1,000 for RTX A4000 honestly sounds like a pretty good deal :-\

 

RTX A4000 and A5000 are the same except the memory chip density

 

Not exactly, see top post in the thread; RTX A5000 has more cores of all three types (CUDA/Tensor/RT). (TechPowerUp currently has some bad information here.) Performance may end up being similar because of the power limit for "typical" applications, but applications that hit one of the latter two types of cores hard might still perform better because they won't hit the power limit as easily.

 

so is the consensus that the A5000 is not worth $1,000? Student pricing it is coming out to $919 more.

thanks,

Mike

 

The extra vRAM could be nice but $1,000 is pretty steep, I have a hard time recommending it (unless you really need it and the money is not that big a deal). I mean, you're looking at basically 2× the cost compared to RTX 4000, and the performance boost in games and typical 3D applications (that don't need more than 8GB vRAM) is likely to be less than 10%. This is going off what has happened for the past few generations; both the 4000 and 5000-level GPUs have been able to hit the power limit so they end up performing around the same. Based on the specs, I expect the situation to be the same with these new Ampere GPUs, but we won't really know for sure until people have these in-hand and do testing (still weeks away)...

Ignoring vRAM, RTX A4000 (and even RTX A3000) are pretty decent upgrades over the previous generation Quadro RTX 5000.

 

on the drive options, besides the size, is there a performance difference on the 1TB Gen 3 and 2TB Gen 4?

M.2 2280 2 TB, Gen 4 PCIe x4 NVMe, Solid State Drive
M.2 2280 1 TB, Gen 3 PCIe x4 NVMe, Solid State Drive

Also, what is an SED Drive? I see that as an option.

 

SED means "self-encrypting drive". These drives support hardware encryption and you can leverage it with BitLocker to take some load off of the CPU while maintaining an encrypted drive. (You have to take some steps to activate it first.)

The PCIe4 drive would presumably be somewhat faster than a PCIe3 drive but I'm not aware of any specifics offered by Dell regarding the speeds or specific models selected.

I'm not sure why Dell is only offering PCIe4 with higher capacity drives. I'd still suggest thinking about ordering the system with the cheapest drive and then choosing your own drive to buy separately ... that way you know exactly what you're getting, there's more choices, and it'll probably be cheaper as well.

 

hmm i just found out on Dell website too about 7760. There is no spec about the gen4 ssd. Seems like no new dock for TB4 yet.