Intel Pentium G645T vs AMD A8-3870K

Comparative analysis of Intel Pentium G645T and AMD A8-3870K processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. 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), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps).

 

Differences

Reasons to consider the Intel Pentium G645T

  • CPU is newer: launch date 9 month(s) later
  • 2.9x lower typical power consumption: 35 Watt vs 100 Watt
  • Around 21% better performance in Geekbench 4 - Single Core: 452 vs 373
Specifications (specs)
Launch date September 2012 vs December 2011
Thermal Design Power (TDP) 35 Watt vs 100 Watt
Benchmarks
Geekbench 4 - Single Core 452 vs 373

Reasons to consider the AMD A8-3870K

  • Processor is unlocked, an unlocked multiplier allows for easier overclocking
  • 2 more cores, run more applications at once: 4 vs 2
  • Around 20% higher clock speed: 3 GHz vs 2.5 GHz
  • 4x more L1 cache, more data can be stored in the L1 cache for quick access later
  • 8x more L2 cache, more data can be stored in the L2 cache for quick access later
  • Around 7% better performance in PassMark - Single thread mark: 1210 vs 1131
  • Around 90% better performance in PassMark - CPU mark: 2328 vs 1228
  • Around 38% better performance in Geekbench 4 - Multi-Core: 1172 vs 848
Specifications (specs)
Unlocked Unlocked vs Locked
Number of cores 4 vs 2
Maximum frequency 3 GHz vs 2.5 GHz
L1 cache 128 KB (per core) vs 64 KB (per core)
L2 cache 1024 KB (per core) vs 256 KB (per core)
Benchmarks
PassMark - Single thread mark 1210 vs 1131
PassMark - CPU mark 2328 vs 1228
Geekbench 4 - Multi-Core 1172 vs 848

Compare benchmarks

CPU 1: Intel Pentium G645T
CPU 2: AMD A8-3870K

PassMark - Single thread mark
CPU 1
CPU 2
1131
1210
PassMark - CPU mark
CPU 1
CPU 2
1228
2328
Geekbench 4 - Single Core
CPU 1
CPU 2
452
373
Geekbench 4 - Multi-Core
CPU 1
CPU 2
848
1172
Name Intel Pentium G645T AMD A8-3870K
PassMark - Single thread mark 1131 1210
PassMark - CPU mark 1228 2328
Geekbench 4 - Single Core 452 373
Geekbench 4 - Multi-Core 848 1172
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 2.914
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 9.482
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.191
CompuBench 1.5 Desktop - Video Composition (Frames/s) 0.4
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 3.344
GFXBench 4.0 - Car Chase Offscreen (Frames) 762
GFXBench 4.0 - Manhattan (Frames) 1721
GFXBench 4.0 - Car Chase Offscreen (Fps) 762
GFXBench 4.0 - Manhattan (Fps) 1721

Compare specifications (specs)

Intel Pentium G645T AMD A8-3870K

Essentials

Architecture codename Sandy Bridge Llano
Launch date September 2012 December 2011
Place in performance rating 2536 2537
Processor Number G645T
Series Legacy Intel® Pentium® Processor
Status Discontinued
Vertical segment Desktop Desktop

Performance

64 bit support
Base frequency 2.50 GHz
Bus Speed 5 GT/s DMI
Die size 131 mm 228 mm
L1 cache 64 KB (per core) 128 KB (per core)
L2 cache 256 KB (per core) 1024 KB (per core)
L3 cache 3072 KB (shared)
Manufacturing process technology 32 nm 32 nm
Maximum core temperature 65.0°C
Maximum frequency 2.5 GHz 3 GHz
Number of cores 2 4
Number of threads 2
Transistor count 504 million 1178 million
Unlocked

Memory

Max memory channels 2
Maximum memory bandwidth 17 GB/s
Maximum memory size 32 GB
Supported memory types DDR3 1066 DDR3

Graphics

Graphics base frequency 650 MHz
Graphics max dynamic frequency 1.10 GHz
Graphics max frequency 1.1 GHz
Intel® Clear Video HD technology
Intel® Flexible Display Interface (Intel® FDI)
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Processor graphics Intel HD Graphics

Graphics interfaces

Number of displays supported 2
Wireless Display (WiDi) support

Compatibility

Low Halogen Options Available
Max number of CPUs in a configuration 1 1
Package Size 37.5mm x 37.5mm
Sockets supported FCLGA1155 FM1
Thermal Design Power (TDP) 35 Watt 100 Watt

Peripherals

Max number of PCIe lanes 16
PCI Express revision 2.0

Security & Reliability

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

Advanced Technologies

Enhanced Intel SpeedStep® technology
Flexible Display interface (FDI)
Idle States
Instruction set extensions Intel® SSE4.1, Intel® SSE4.2
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring

Virtualization

Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)
AMD Virtualization (AMD-V™)