AMD Athlon II X4 645 vs AMD Sempron 145

Comparative analysis of AMD Athlon II X4 645 and AMD Sempron 145 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s).

 

Differences

Reasons to consider the AMD Athlon II X4 645

  • 3 more cores, run more applications at once: 4 vs 1
  • Around 11% higher clock speed: 3.1 GHz vs 2.8 GHz
  • 4x more L1 cache, more data can be stored in the L1 cache for quick access later
  • 2x more L2 cache, more data can be stored in the L2 cache for quick access later
  • Around 24% better performance in PassMark - Single thread mark: 1256 vs 1015
  • 4.5x better performance in PassMark - CPU mark: 2348 vs 518
  • Around 15% better performance in Geekbench 4 - Single Core: 375 vs 325
  • 3.8x better performance in Geekbench 4 - Multi-Core: 1215 vs 317
Specifications (specs)
Number of cores 4 vs 1
Maximum frequency 3.1 GHz vs 2.8 GHz
L1 cache 128 KB (per core) vs 128 KB (per core)
L2 cache 512 KB (per core) vs 1024 KB (per core)
Benchmarks
PassMark - Single thread mark 1256 vs 1015
PassMark - CPU mark 2348 vs 518
Geekbench 4 - Single Core 375 vs 325
Geekbench 4 - Multi-Core 1215 vs 317

Reasons to consider the AMD Sempron 145

  • 2.1x lower typical power consumption: 45 Watt vs 95 Watt
Thermal Design Power (TDP) 45 Watt vs 95 Watt

Compare benchmarks

CPU 1: AMD Athlon II X4 645
CPU 2: AMD Sempron 145

PassMark - Single thread mark
CPU 1
CPU 2
1256
1015
PassMark - CPU mark
CPU 1
CPU 2
2348
518
Geekbench 4 - Single Core
CPU 1
CPU 2
375
325
Geekbench 4 - Multi-Core
CPU 1
CPU 2
1215
317
Name AMD Athlon II X4 645 AMD Sempron 145
PassMark - Single thread mark 1256 1015
PassMark - CPU mark 2348 518
Geekbench 4 - Single Core 375 325
Geekbench 4 - Multi-Core 1215 317
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 2.103
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 9.496

Compare specifications (specs)

AMD Athlon II X4 645 AMD Sempron 145

Essentials

Architecture codename Propus Sargas
Launch date September 2010 September 2010
Launch price (MSRP) $80 $95
Place in performance rating 2780 2751
Price now $49.99 $16.98
Value for money (0-100) 20.48 14.02
Vertical segment Desktop Desktop

Performance

64 bit support
Die size 169 mm 117 mm
L1 cache 128 KB (per core) 128 KB (per core)
L2 cache 512 KB (per core) 1024 KB (per core)
Manufacturing process technology 45 nm 45 nm
Maximum frequency 3.1 GHz 2.8 GHz
Number of cores 4 1
Transistor count 300 million 234 million

Memory

Supported memory types DDR3 DDR3

Compatibility

Max number of CPUs in a configuration 1 1
Sockets supported AM3 AM3
Thermal Design Power (TDP) 95 Watt 45 Watt