A 128GB 2TB Dell Pro Max with Nvidia GB10 is about $4200, a Mac Studio with 128GB RAM and 2TB storage is $4100. So pretty comparable. I think Dell's pricing has been rocked more by the RAM shortage too.
replyUnfortunately the GB10 is incredibly bandwith starved. You get 128gb ram, but only 270GB/s bandwidth. The M3 Ultra mac studio gets you 820GB/s. (The M4 max is at 410GB/s. I'm not aware of any workload that gets the GB10 to it's theoretical peakflops.
replyYou can't get a 128GB M3 Ultra, it's also more expensive. For some workloads the Studio is better, for others the GB10.
reply~not unified memory tho~
replyIt is unified memory on this one
replyFrom the spec sheets I’m looking at, it is not. I’m seeing models of the Dell Pro Max with 128 GB of DDR5-6400 as CAMM2, then a separate memory of up to 24 GB on the GPU. CAMM2 does not make the memory unified.
replyThere are also SO-DIMM options.
You're not looking at the right thing. Dell's naming is horrible. Dell Pro Max with GB10 (https://www.dell.com/en-us/shop/cty/pdp/spd/dell-pro-max-fcm...). It's a very different computer than what you're looking at and has 128GB LPDDR5X unified memory.
replyThanks for pointing that out. I found a more informative article about that model at https://www.mcpgov.com/dell-pro-max-gb10
replymy bad
replyI took ~ to be a "singing tone" for some reason till I saw sibling and realized it might be an attempted strikethrough xD
replyThat won't hold much benefit as SOCAMM2 and LPCAMM2 get more popular.
reply> So pretty comparable.
replyThe Mac Studio almost certainly uses at least half the power
(educated guess, I'm too lazy to go look at all the spec sheets and run the numbers)
It's actually reversed. The GB10 chipset has a TDP of 140w, whereas M2/M3 Ultra pulls over 250w from the wall: https://support.apple.com/en-us/102027
reply> It's actually reversed. The GB10 chipset has a TDP of 140w, whereas M2/M3 Ultra pulls over 250w from the wall
replyCome on mate ... I think you and I both know I was talking about complete system here, not discrete components.
I'm pretty sure your total package (Dell Pro Max + GB10) will pull more from the wall.
I'm pretty sure you need to look up what you're talking about instead of making a guess.
replyThe Dell Pro Max PSU + enclosure is only rated for 240w, it literally can't pull more than 250w from the wall without shorting itself.
> 240w
reply280w according to the spec sheet I just looked at.
Also just look at the graphs on Geerling's website. The Mac Studio eats the Dell for breakfast in a number of the tests: https://www.jeffgeerling.com/blog/2025/dells-version-dgx-spa...
Not quite, what is the vRAM bandwidth of each? The bandwidth is a huge contributor to LLM performance.
replyAFAIK, for the unified bandwidth, it depends mostly on the CPU, for M4 Max (I think it's the default today?) it does ~550 GB/s, while GB10 does ~270 GB/s, so about a 2x difference between the two. For comparison, RTX Pro 6000 does 1.8 TB/s, pretty much the same as what a 5090 does, which is probably the fastest/best GPUs a prosumer reasonable could get.
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