Daily Tech News 6 July 2025

• The Nvidia RTX 5090 - the fastest graphics card available - can lose up to 25% performance if it doesn't have full PCIe 5.0 x16 bandwidth. (WCCFTech)
  
  For example, running at half speed - with either a PCIe x8 slot or PCIe 4.0 - it loses... Basically nothing. Maybe 1%.
  
  At a quarter of the bandwidth - so PCIe 3.0 - it loses 10% of its performance.
  
  If you drop all the way back to PCIe 2.0 you finally see that 25% performance loss.
  
  Meaning that PCIe 5.0 doesn't improve performance unless you don't have all 16 lanes available, even on a 5090.
  
  And if you're using it for a workload that resides mostly on the card, like AI processing, you hardly need anything. There's more variability between test runs than between a single lane and a full x16 slot.

• The OneXGPU Lite offers a Radeon 7600M GPU on a Thunderbolt 5 connection, which is... Kind of pointless. (Liliputing)
  
  The 7600M runs at about a quarter the speed of a 5090, so it would work just fine with Thunderbolt 4. Or Thunderbolt 3, since it's exactly the same speed.
  
  
  
• Intel has a new network card. (Serve the Home)
  
  The E610 offers two ports at up to 10Gb speeds and uses just 5W.
  
  
  
• Serving 200 million requests per day using CGI on an entry level server. (Simon Willison)
  
  CGI may not be fast, but that's all relative. It scales smoothly on whatever hardware you might throw at it, and hardware these days is fast.

posted by Pixy Misa at 04:30 AM

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