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Tell that to Nvidia, Blackwell is already up to 752 cores (each with 32-lane SIMD).
by jsheard 10mo ago
Tell that to Nvidia, Blackwell is already up to 752 cores (each with 32-lane SIMD).
- fooblaster 10mo agob200 is 148 sms, so no
- jsheard 10mo agoEach SM cluster contains 4 independent 32-wide compute units, and GB202 has 192 SMs, although only 188 of them are enabled on the largest shipping SKU. IMO that makes for 752 "cores", but depending on where you draw the line it could be 188, 752, or 24064.
- fooblaster 10mo agosms is the Nvidia definition of processor, and cuda device properties returns it, not anything else. If you want a marketing number, use cuda cores, it doesn't consistently match to anything in the hardware design.
- markhahn 10mo agono, you really can't. NVidia's use of "cores" is simply wrong. unless you think a core is a simple scalar ALU. but cores haven't been like that for decades. or would you like to count cores in a current AMD or Intel CPU? each "core" has half a dozen ALUs/FP pipes, and don't forget to multiply by SIMD width.
- phkahler 10mo ago640K cores should be enough for everyone.