• 9 Posts
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Joined 2 years ago
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Cake day: June 13th, 2023

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  • grue@lemmy.worldtoTechnology@lemmy.worldWe all deserve better than this
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    1 day ago

    No, you’ve got that backwards. Standing in line at a brick-and-mortar store on launch day is the best strategy to reliably get a card at MSRP. Otherwise, you’re either having to constantly keep checking for months on end to snag a card during the brief windows when it’s in stock, or pay way over MSRP for the privilege of easy availability, or deal with all the risk and complexity associated with Craigslist/eBay sales of used stuff.

    Also, in this particular case, (a) a $600 9070 XT is a much better value than a $700+ 7900 XT with similar performance, and (b) this generation has tangible feature improvements (namely, decent ray tracing) that you just can’t get at all going back a generation. Edit: and oh yeah, © there’s also the imminent threat of Trump tariffs inflating the price 25% if you don’t buy pretty much immediately.


  • Maybe, maybe not. Keep in mind that opcodes are the lowest-level part of the programming stack. They’re literally just integers transmitted on the system bus. So if you’ve got, for example, 35 operations that you’re actually trying to implement, you need 2n ≥ 35 or n = 6 signal lines in your bus to transmit it. But since 26 = 64, that means it’s possible to put another 29 values on that 6-bit bus, with completely undefined behavior unless you go out of your way to handle them in the instruction decoder (increasing the size and therefore cost of your silicon, which is very undesirable in an embedded chip that sells for less than $1).

    It is not at all implausible for one of those undefined instructions to just happen to do something that an attacker would find useful, by sheer coincidence.