Tales of Weird Stuff | Why did slot CPUs exist? @TalesofWeirdStuff | Uploaded February 2024 | Updated October 2024, 1 hour ago.
Why did slot-based Pentium II, Pentium III, and Athlon CPUs exist? Why did they disappear? It all has to do with the importance of cache performance and what was possible with the technology of the day. I'll dive really, really deep into many aspect of CPU and cache performance to make a case for why they existed and why they vanished.
Twitter: twitter.com/TalesOfWeird
Instagram: instagram.com/TalesOfWeirdStuff
00:00 Intro
00:30 Data transmission performance
00:54 Bandwidth and latency
03:32 The Pentiums
05:22 The memory speed problem
10:34 Bus speed matters
12:23 P55C L1 cache advantage
13:10 How do we (not actually) go faster?
18:29 Direct mapped cache
24:11 Set associative cache
28:46 Lookin' at you, L2
32:50 CPU and cache on a board, take 1
35:33 Pentium Pro
43:30 CPU and cache on a board, take 2
45:23 But why vertical?
47:09 Slot B Xeon
49:22 A is for Athlon
51:03 On-die cache
53:43 Off-die cache?
55:25 On-die cache!!!
57:48 Closing words
Computer Architecture: A Quantitative Approach (these are Amazon affiliate links)
amzn.to/3SePOE9 or amzn.to/3OgYJnn
Image and video credits:
Drinking glass being filled:
youtube.com/watch?v=OhqQrfOiIoU
Worst fireman ever:
youtube.com/watch?v=P9BXRBcVDHc
Flight of Apollo Saturn V:
youtube.com/watch?v=iBVjV960PRk
Intel Coffee Lake die photo:
commons.wikimedia.org/wiki/File:Intel@14nm%2B%2B@CoffeeLake@Coffee_Lake-S@i7-8700K@SR3QR_DSC02911-DSC02973.jpg
Pentium Pro "de-lidded" CPU:
commons.wikimedia.org/wiki/File:CPU_Pentium_Pro.jpg
Sequent computer room:
commons.wikimedia.org/wiki/File:Sequent_IS_Computer_Room.jpg
Sequent TPC benchmark submission info:
tpc.org/results/individual_results/sequent/sequent.numa.d.es.pdf
Crying face emoji:
commons.wikimedia.org/wiki/File:Emojione1_1F62D.svg
Pentium II Xeon 450MHz:
commons.wikimedia.org/wiki/File:Pentium_II_Xeon_450_512.jpg
Pentium II Overdrive "de-lidded" CPU:
commons.wikimedia.org/wiki/File:KL_Intel_PPro_Overdrive_P6T_Top.jpg
Why did slot-based Pentium II, Pentium III, and Athlon CPUs exist? Why did they disappear? It all has to do with the importance of cache performance and what was possible with the technology of the day. I'll dive really, really deep into many aspect of CPU and cache performance to make a case for why they existed and why they vanished.
Twitter: twitter.com/TalesOfWeird
Instagram: instagram.com/TalesOfWeirdStuff
00:00 Intro
00:30 Data transmission performance
00:54 Bandwidth and latency
03:32 The Pentiums
05:22 The memory speed problem
10:34 Bus speed matters
12:23 P55C L1 cache advantage
13:10 How do we (not actually) go faster?
18:29 Direct mapped cache
24:11 Set associative cache
28:46 Lookin' at you, L2
32:50 CPU and cache on a board, take 1
35:33 Pentium Pro
43:30 CPU and cache on a board, take 2
45:23 But why vertical?
47:09 Slot B Xeon
49:22 A is for Athlon
51:03 On-die cache
53:43 Off-die cache?
55:25 On-die cache!!!
57:48 Closing words
Computer Architecture: A Quantitative Approach (these are Amazon affiliate links)
amzn.to/3SePOE9 or amzn.to/3OgYJnn
Image and video credits:
Drinking glass being filled:
youtube.com/watch?v=OhqQrfOiIoU
Worst fireman ever:
youtube.com/watch?v=P9BXRBcVDHc
Flight of Apollo Saturn V:
youtube.com/watch?v=iBVjV960PRk
Intel Coffee Lake die photo:
commons.wikimedia.org/wiki/File:Intel@14nm%2B%2B@CoffeeLake@Coffee_Lake-S@i7-8700K@SR3QR_DSC02911-DSC02973.jpg
Pentium Pro "de-lidded" CPU:
commons.wikimedia.org/wiki/File:CPU_Pentium_Pro.jpg
Sequent computer room:
commons.wikimedia.org/wiki/File:Sequent_IS_Computer_Room.jpg
Sequent TPC benchmark submission info:
tpc.org/results/individual_results/sequent/sequent.numa.d.es.pdf
Crying face emoji:
commons.wikimedia.org/wiki/File:Emojione1_1F62D.svg
Pentium II Xeon 450MHz:
commons.wikimedia.org/wiki/File:Pentium_II_Xeon_450_512.jpg
Pentium II Overdrive "de-lidded" CPU:
commons.wikimedia.org/wiki/File:KL_Intel_PPro_Overdrive_P6T_Top.jpg
