Comment on AMD’s new CPU hits 132fps in Fortnite without a graphics card

• SpaceCadet@feddit.nl ⁨9⁩ ⁨months⁩ ago

  So what’s the point of this thing then?

  If you just want 8 cores for productivity and basic graphics, you’re better off getting a Ryzen 7 7700, which is not gimped by half the cache and less than half the PCIe bandwith and for gaming, even the shittiest discrete GPUs of the current generation will beat it if you give it a half decent CPU.

  This thing seems to straddle a weird position between gaming and productivity, where it can’t do either really well. At that pricepoint, I struggle to see why anyone would want it.

  It’s like that old adage: there are no bad CPUs only bad prices.

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  • barsoap@lemm.ee ⁨9⁩ ⁨months⁩ ago

    which is not gimped by half the cache and less than half the PCIe bandwith

    Half L3, yes. 24 vs. 16 (available) PCIe lanes that’s not half, still enough for two SSDs and a GPU, if you actually want IO buy a threadripper. The 8700G has quite a bit more baseclock, 7700 boosts higher but you can forget about that number with all-core loads. About 9 times raw iGPU TFLOPs.

    Oh, those TFLOPs. 4.5 vs. my RX 5500’s 5 (both in f32), yet in gaming performance mine pulls significantly ahead, must be memory bandwidth. Light inference workloads? VRAM certainly won’t be an issue just add more sticks. Those TFLOPS will also kill BLAS workloads dead so scientific computing is an option.

    Can’t find proper numbers right now but the 7700 should have a total of about half a TFLOP CPU and half a TFLOP GPU.

    So, long story short: When you’re an university and a prof says “I need a machine to run R”, that’s the CPU you want.

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    • SpaceCadet@feddit.nl ⁨9⁩ ⁨months⁩ ago

      24 vs. 16 (available) PCIe lanes that’s not half

      24x PCIe 5.0 vs 16x PCIe 4.0

      So 8 lanes less and each lane has half the bandwith = less than half the PCIe bandwidth.

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