Pentium 100

Processor using the i586 microprocessor launched on 22th March 1993 and discontinued on 15th July 1999.

Comparison of Pentium 100 (i586) and Core i7 (2024)

Pentium 100 (i586)

• It has relatively simple architectures with limited instruction set.
• Pipeline is less complex.
• Hyper threading is not available.
• There are no advanced optimizations for out-of-order execution
• Simple memory model
• Parallelism and thread processing: Pentium uses only one thread
• Performance: Emulating Pentium 100 should be much more faster

Core i7 (2024)

• Instruction set is much more complex (including SIMD extensions like AVX, AVX2, AVX-512)
• Several pipelines with out-of-order execution of instuction s
• Branch prediction
• Hyper threading
• And other advanced optimizations
• Complex memory model:
  • several layers of cache (L1, L2, L3)
  • cache prefetching
  • speculative execution
  • TLB (Translation Lookaside Buffer) for virtual memory
• Parallelism and thread processing: Core i7 hase several cores and supports hyper-threading
• Performance of Core i7 is about 1000 times bigger than the performance of Pentium 100