AMD Athlon X4 740 vs AMD Athlon X4 845

Comparative analysis of AMD Athlon X4 740 and AMD Athlon X4 845 processors for all known characteristics in the following categories: Essentials, Performance, Compatibility, Memory, Peripherals, Advanced Technologies. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s).

 

Differences

Reasons to consider the AMD Athlon X4 740

  • 2x more L2 cache, more data can be stored in the L2 cache for quick access later
L2 cache 4 MB vs 2 MB

Reasons to consider the AMD Athlon X4 845

  • Around 3% higher clock speed: 3.8 GHz vs 3.7 GHz
  • A newer manufacturing process allows for a more powerful, yet cooler running processor: 28 nm vs 32 nm
  • Around 24% better performance in PassMark - Single thread mark: 1680 vs 1355
  • Around 45% better performance in PassMark - CPU mark: 3796 vs 2626
  • Around 14% better performance in Geekbench 4 - Single Core: 516 vs 452
  • Around 27% better performance in Geekbench 4 - Multi-Core: 1548 vs 1215
  • Around 12% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.244 vs 0.217
  • Around 11% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 4.237 vs 3.815
Specifications (specs)
Maximum frequency 3.8 GHz vs 3.7 GHz
Manufacturing process technology 28 nm vs 32 nm
Benchmarks
PassMark - Single thread mark 1680 vs 1355
PassMark - CPU mark 3796 vs 2626
Geekbench 4 - Single Core 516 vs 452
Geekbench 4 - Multi-Core 1548 vs 1215
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.244 vs 0.217
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 4.237 vs 3.815

Compare benchmarks

CPU 1: AMD Athlon X4 740
CPU 2: AMD Athlon X4 845

PassMark - Single thread mark
CPU 1
CPU 2
1355
1680
PassMark - CPU mark
CPU 1
CPU 2
2626
3796
Geekbench 4 - Single Core
CPU 1
CPU 2
452
516
Geekbench 4 - Multi-Core
CPU 1
CPU 2
1215
1548
CompuBench 1.5 Desktop - T-Rex (Frames/s)
CPU 1
CPU 2
0.217
0.244
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)
CPU 1
CPU 2
3.815
4.237
Name AMD Athlon X4 740 AMD Athlon X4 845
PassMark - Single thread mark 1355 1680
PassMark - CPU mark 2626 3796
Geekbench 4 - Single Core 452 516
Geekbench 4 - Multi-Core 1215 1548
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.217 0.244
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 3.815 4.237
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 3.853
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 11.946

Compare specifications (specs)

AMD Athlon X4 740 AMD Athlon X4 845

Essentials

Family AMD Athlon Processors AMD Athlon Processors
OPN PIB AD740XOKHJBOX AD845XACKASBX
OPN Tray AD740XOKA44HJ
Place in performance rating 2615 2616
Series AMD Athlon X4 AMD Athlon X4
Vertical segment Desktop Desktop

Performance

Base frequency 3.2 GHz 3.5 GHz
L2 cache 4 MB 2 MB
Manufacturing process technology 32 nm 28 nm
Maximum frequency 3.7 GHz 3.8 GHz
Number of cores 4 4
Number of threads 4 4
Unlocked
Maximum core temperature 71.30°C

Compatibility

Sockets supported FM2 FM2+
Thermal Design Power (TDP) 65 Watt
Thermal Solution Near Silent 95W

Memory

Max memory channels 2
Supported memory frequency 2133 MHz
Supported memory types DDR3

Peripherals

PCI Express revision 3.0

Advanced Technologies

Fused Multiply-Add 4 (FMA4)
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions