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oh would you look at that Dell's done it again it was enough to have a proprietary motherboards power supplies

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cases and an upgradable laptop that never actually got an upgrade now you

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have to have proprietary memory as well

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stop it jeez what what okay okay oh wait

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so anyone can use this memory standard they invented this changes everything in

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fact this Dell Precision 7670 might be

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the most important laptop of 2022 that's

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because with at the ability to upgrade memory on a laptop at all could have

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become a thing of the past don't believe me well you will soon after you believe

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resizing protection exchanges get yours at the link down below I don't blame you

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for being skeptical Dell has a long and stored history of completely bogus

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propriety hairy crap one of the most recent ones being the Alienware area 51m

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a laptop that Dell said would be upgradeable and until it came time to

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actually offer the upgrades and then they got all well technically it was as

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long as you stay within the same Hardware generation on us so what makes

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me trust that the upgradeable memory we're talking about today will actually

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be upgradeable it's because rather than going it alone Dell is working with jck

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and by extension jde members to get their new memory module turned into to

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an open standard for laptop memory going forward and it is super cool the first

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thing that jumps out when we remove the bottom panel of the Precision 7670 is

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the massive green memory module here that looks like no memory module I've

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ever seen before this is the cam module

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or compression attached memory module and looks pretty cool I guess but why

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well currently the memory in your laptop is probably more like what's in this XPS

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15 sodm or small outline dim modules

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have been around for 25 years and that's

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one heck of a run for technology but with the speeds we're expecting to see

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in the coming years they're simply running out of gas why good old signal

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Integrity the longer the wire the greater the signal loss and the greater

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the latency look at the fastest memory products on the market hbm or high

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bandwidth memory is mounted right on the package mere millimeters away from the

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process processor that it serves the gddr6 memory on a 4090 all of that is

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within a couple cm of the GPU die this

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keeps the wires as short as possible by

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comparison the chips on a sodum might as well be in Narnia with a minimum wire

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length of around 72

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cm this is super easy to see on our XPS

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15 the CPU is soldered to the motherboard right here and the traces

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need to travel all the way underneath these memory modules back up through the

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connector and then around finally into

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the package dies there are ddr5 sodm and

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laptops however if you've paying close attention you've probably noticed that

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machines with soldered RAM have been enjoying a speed Advantage compared to

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their sodum equipped competitors for current gen ddr5 it's not an

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insurmountable problem the theoretical Max for sodum is about 10,000 megga

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transfers per second but it's already proving to be pretty difficult in the

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real world to get those kind of speeds and ddr6 will definitely surpass even

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that theoretical limit you're probably wondering why we can't just simply turn

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these sodum connectors around that's a good question and our best guess is that

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it just becomes impractical to pack enough zigzagging traces in this small

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little area so that every single wire is the same length something that is

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crucial to maintain perfect signal timing now let's turn our attention to

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cam we've got the CPU right here and the

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connector uh yeah you can't get much closer than that even with the largest

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cam modules we're looking at a 50% reduction in distance to the CPU that is

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fantastic but there's another big reason laptop manufactures have been soldering

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down RAM physical size if you're looking

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to make the thinnest and lightest machine you can the sodum connectors can

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easily end up being the tallest component on your motherboard so if even

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a couple of millimeters can be saved by soldering down that RAM it's going to

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happen unfortunately such devices are completely unupgraded

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mitigate it on top of supporting much

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higher memory speeds cam is 57% thinner

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than sodm that helps not only keep devices thinner but even helps

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facilitate better airflow over the memory packages back to speed for a

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second for the moment cam only has a speed Advantage at 128 GB of RAM but

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Dell wasn't trying to set any speed records on its first outing annoyingly

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the business users that use the Precision lineup want stability instead

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of allo performance so we'll have to wait until cam shows up in alien wear or

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something to see how fast it really can go not everything about cam is radical

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though mechanically this design is very novel but electrically it is very

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similar to sodm the bill of materials between the two is nearly identical so

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switching between Cam and sodm is purely just a packaging problem there's even a

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cam to sodm adapter they're so electrically interoperable this is also

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pretty cool see how there are two sodum slots on a single cam adapter that's

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because cam supports two memory channels per module using shared ground pins to

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reduce the total number of connections and because of these similarities and

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simplifications cam shouldn't be more expensive than sodum in the long term

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currently you can expect to pay about $1 per gab more for cam than sodum but

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there are no licensing phase to use the design so as the wonders of economies of

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scale come into play and more of these modules get made we can expect the price

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to come down to match or even slightly undercut sodm just like how we've

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undercut ourselves by making the color block hoodie only $50 LTT Store.com it's

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not perfect though cam offers a less flexible upgrade path than sodm for

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instance if you want to go to 64 GB from 32 there's no way to reuse

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the RAM that's already in your laptop the cam module you just remove it and

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then you have to put a whole new one in and that assumes that the new one even

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fits like motherboards and power supplies all cam modules should come in

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standard sizes but they are more than one standard size for instance this 128

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GB module is much larger than the 32 GB

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one we have in our system but then again

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sodum users can run into similar issues as well especially when it comes to

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double-sided modules another Point worth mentioning is that the standard doesn't

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appear to be 100% nailed down so we could potentially end up in a draft end

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sort of situation those of you that aren't Elder nerds back in 2006 Wireless

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networking was in a similar spot to where laptop memory is now router

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manufacturers wanted to continue pushing the envelope for Speed and network

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capacity in their products but thanks to a bunch of biger between Intel broadcom

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Texas Instruments and others the 802.11n now called Wi-Fi 4 only existed

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as a draft standard in spite of this router brand started selling draft end

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products anyway only some of which ended

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up being compatible with the 802.11n standard when it was finalized

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later this led to some customers buying bleeding edge routers that promptly

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turned into E-Waste the same thing could happen with this current iteration of

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Cam to be clear I doubt the specifications for cam are going to

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change very much but we know that ECC support is still coming and all it takes

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is for one pin to go from ground to Signal or something like that to make

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the memory in this laptop in compatible with future modules you might buy on new

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egg or wherever in the future so with that in mind should you take a risk on

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this machine well first of all the Precision 7670 probably wasn't made for

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you anyway this is a machine you get your boss to buy for you it has a bunch

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of features you can easily pitch to a business like smart card reader for

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greater security systems management certified drivers that sort of stuff

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it's the kind of product where realistically you're buying a whole

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Fleet of them with a service contract anyway so you know upgrading something

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for your it Department to worry about the good news is that if you do end up

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with one of these through work it's a sick machine to take home and play with

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off hours the star of the show is absolutely the 16-in 4K OLED display I'm

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pretty sure this is the same panel that's found in the xps15 and it is

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possibly one of the best laptop displays on the market it has excellent color

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accuracy near-perfect blacks and low input lag to make gaming much more

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enjoyable than other business laptops our model supports a Quadro A2000 GPU

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which is essentially an RTX 3050 TI that

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is downclocked slightly to improve stability under extended loads hours is

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slim version here so this is uh not exactly thin or light by any means at

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5.75 lb but if you want even chunkier

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version well the performance version has a GPU that can go up to a Quadro

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a5500 which has similar performance to a laptop RTX 380 TI this thing is going to

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be a sleeper gaming Beast the rest of

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the laptop is business as usual for Dell's business division excellent

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keyboard loads of I/O and surprisingly good trackpad to boot now it's time for

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business as usual at LT telling you about the segue to our sponsor Zoho one

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card required so if you like this video maybe watch our review of the XPS 13

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plus it is very strange but I also liked

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it