AMD Athlon II X4 651 vs Intel Core i7-875K

Comparative analysis of AMD Athlon II X4 651 and Intel Core i7-875K processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Virtualization, Peripherals, Security & Reliability, 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 - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s).

 

Differences

Reasons to consider the AMD Athlon II X4 651

  • CPU is newer: launch date 1 year(s) 6 month(s) later
  • A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
  • 2x more L1 cache, more data can be stored in the L1 cache for quick access later
  • 4x more L2 cache, more data can be stored in the L2 cache for quick access later
  • 3.3x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 3.042 vs 0.925
Specifications (specs)
Launch date November 2011 vs May 2010
Manufacturing process technology 32 nm vs 45 nm
L1 cache 128 KB (per core) vs 64 KB (per core)
L2 cache 1024 KB (per core) vs 256 KB (per core)
Benchmarks
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 3.042 vs 0.925

Reasons to consider the Intel Core i7-875K

  • Processor is unlocked, an unlocked multiplier allows for easier overclocking
  • Around 20% higher clock speed: 3.60 GHz vs 3 GHz
  • Around 5% lower typical power consumption: 95 Watt vs 100 Watt
  • Around 5% better performance in PassMark - Single thread mark: 1351 vs 1287
  • Around 24% better performance in PassMark - CPU mark: 3100 vs 2500
  • Around 43% better performance in Geekbench 4 - Single Core: 567 vs 396
  • Around 62% better performance in Geekbench 4 - Multi-Core: 2163 vs 1335
  • Around 21% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 4.459 vs 3.69
Specifications (specs)
Unlocked Unlocked vs Locked
Maximum frequency 3.60 GHz vs 3 GHz
Thermal Design Power (TDP) 95 Watt vs 100 Watt
Benchmarks
PassMark - Single thread mark 1351 vs 1287
PassMark - CPU mark 3100 vs 2500
Geekbench 4 - Single Core 567 vs 396
Geekbench 4 - Multi-Core 2163 vs 1335
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 4.459 vs 3.69

Compare benchmarks

CPU 1: AMD Athlon II X4 651
CPU 2: Intel Core i7-875K

PassMark - Single thread mark
CPU 1
CPU 2
1287
1351
PassMark - CPU mark
CPU 1
CPU 2
2500
3100
Geekbench 4 - Single Core
CPU 1
CPU 2
396
567
Geekbench 4 - Multi-Core
CPU 1
CPU 2
1335
2163
CompuBench 1.5 Desktop - Face Detection (mPixels/s)
CPU 1
CPU 2
3.042
0.925
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)
CPU 1
CPU 2
3.69
4.459
Name AMD Athlon II X4 651 Intel Core i7-875K
PassMark - Single thread mark 1287 1351
PassMark - CPU mark 2500 3100
Geekbench 4 - Single Core 396 567
Geekbench 4 - Multi-Core 1335 2163
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 3.042 0.925
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 3.69 4.459
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 51.608
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.35
CompuBench 1.5 Desktop - Video Composition (Frames/s) 1.146

Compare specifications (specs)

AMD Athlon II X4 651 Intel Core i7-875K

Essentials

Architecture codename Llano Lynnfield
Launch date November 2011 May 2010
Place in performance rating 2707 2716
Price now $178.04 $485.01
Value for money (0-100) 5.93 3.30
Vertical segment Desktop Desktop
Launch price (MSRP) $486
Processor Number i7-875K
Series Legacy Intel® Core™ Processors
Status Discontinued

Performance

64 bit support
Die size 228 mm 296 mm2
L1 cache 128 KB (per core) 64 KB (per core)
L2 cache 1024 KB (per core) 256 KB (per core)
Manufacturing process technology 32 nm 45 nm
Maximum frequency 3 GHz 3.60 GHz
Number of cores 4 4
Transistor count 1178 million 774 million
Base frequency 2.93 GHz
Bus Speed 2.5 GT/s DMI
L3 cache 8192 KB (shared)
Maximum core temperature 72.7°C
Number of threads 8
Unlocked
VID voltage range 0.6500V-1.4000V

Memory

Supported memory types DDR3 DDR3 1066/1333
Max memory channels 2
Maximum memory bandwidth 21 GB/s
Maximum memory size 16 GB

Compatibility

Max number of CPUs in a configuration 1 1
Sockets supported FM1 LGA1156
Thermal Design Power (TDP) 100 Watt 95 Watt
Low Halogen Options Available
Package Size 37.5mm x 37.5mm

Virtualization

AMD Virtualization (AMD-V™)
Intel® Virtualization Technology (VT-x)
Intel® VT-x with Extended Page Tables (EPT)

Peripherals

Max number of PCIe lanes 16
PCI Express revision 2.0
PCIe configurations 1x16, 2x8

Security & Reliability

Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)

Advanced Technologies

Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions Intel® SSE4.2
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Physical Address Extensions (PAE) 36-bit
Thermal Monitoring