Intel Core i7-2600K vs Intel Core 2 Extreme QX9650

Comparative analysis of Intel Core i7-2600K and Intel Core 2 Extreme QX9650 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, 3DMark Fire Strike - Physics Score, 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).

 

Differences

Reasons to consider the Intel Core i7-2600K

  • CPU is newer: launch date 3 year(s) 2 month(s) later
  • Around 27% higher clock speed: 3.80 GHz vs 3 GHz
  • Around 13% higher maximum core temperature: 72.6°C vs 64.5°C
  • A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
  • Around 37% lower typical power consumption: 95 Watt vs 130 Watt
  • Around 74% better performance in Geekbench 4 - Single Core: 811 vs 465
  • 2.1x better performance in Geekbench 4 - Multi-Core: 3117 vs 1463
Specifications (specs)
Launch date 3 January 2011 vs November 2007
Maximum frequency 3.80 GHz vs 3 GHz
Maximum core temperature 72.6°C vs 64.5°C
Manufacturing process technology 32 nm vs 45 nm
Thermal Design Power (TDP) 95 Watt vs 130 Watt
Benchmarks
Geekbench 4 - Single Core 811 vs 465
Geekbench 4 - Multi-Core 3117 vs 1463

Reasons to consider the Intel Core 2 Extreme QX9650

  • 12x more L2 cache, more data can be stored in the L2 cache for quick access later
  • 2.6x better performance in 3DMark Fire Strike - Physics Score: 4864 vs 1845
Specifications (specs)
L2 cache 12288 KB vs 1024 KB
Benchmarks
3DMark Fire Strike - Physics Score 4864 vs 1845

Compare benchmarks

CPU 1: Intel Core i7-2600K
CPU 2: Intel Core 2 Extreme QX9650

Geekbench 4 - Single Core
CPU 1
CPU 2
811
465
Geekbench 4 - Multi-Core
CPU 1
CPU 2
3117
1463
3DMark Fire Strike - Physics Score
CPU 1
CPU 2
1845
4864
Name Intel Core i7-2600K Intel Core 2 Extreme QX9650
PassMark - Single thread mark 1746
PassMark - CPU mark 5492
Geekbench 4 - Single Core 811 465
Geekbench 4 - Multi-Core 3117 1463
3DMark Fire Strike - Physics Score 1845 4864
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 4.524
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 77.745
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.602
CompuBench 1.5 Desktop - Video Composition (Frames/s) 2.129
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 5.018

Compare specifications (specs)

Intel Core i7-2600K Intel Core 2 Extreme QX9650

Essentials

Architecture codename Sandy Bridge Yorkfield
Launch date 3 January 2011 November 2007
Launch price (MSRP) $317
Place in performance rating 2303 2297
Price now $189.99
Processor Number i7-2600K QX9650
Series Legacy Intel® Core™ Processors Legacy Intel® Core™ Processors
Status Discontinued Discontinued
Value for money (0-100) 13.10
Vertical segment Desktop Desktop

Performance

64 bit support
Base frequency 3.40 GHz 3.00 GHz
Bus Speed 5 GT/s DMI 1333 MHz FSB
Die size 216 mm 214 mm2
L1 cache 64 KB (per core) 256 KB
L2 cache 1024 KB 12288 KB
L3 cache 8192 KB
Manufacturing process technology 32 nm 45 nm
Maximum core temperature 72.6°C 64.5°C
Maximum frequency 3.80 GHz 3 GHz
Number of cores 4 4
Number of threads 8
Transistor count 995 Million 820 million
Unlocked
Maximum case temperature (TCase) 64 °C
VID voltage range 0.8500V-1.3625V

Memory

Max memory channels 2
Maximum memory bandwidth 21 GB/s
Maximum memory size 32 GB
Supported memory types DDR3 1066/1333 DDR1, DDR2, DDR3

Graphics

Device ID 0x112
Graphics base frequency 850 MHz
Graphics max dynamic frequency 1.35 GHz
Graphics max frequency 1.35 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 3000

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 37.5mm x 37.5mm
Sockets supported LGA1155 LGA775
Thermal Design Power (TDP) 95 Watt 130 Watt

Peripherals

Max number of PCIe lanes 16
PCI Express revision 2.0

Security & Reliability

Execute Disable Bit (EDB)
Intel® Identity Protection technology
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® AVX
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Fast Memory Access
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
FSB parity
Intel® Demand Based Switching

Virtualization

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