ProductCore i5-2550KCore i7-7820X X-series
Brand Intel Intel
Street Price (Approx) ~ $1025
Search low Core i5-2550K price (Amazon)
~ $455
Search low Core i7-7820X X-series price (Amazon)
# CPU Cores 48
Frequency (GHz) 3.4 GHz3.6 GHz
Cache (MB) 611
TDP (Watts) 95 W140 W
Product Segment DesktopDesktop
Status ReleasedReleased
Announced On 2012-01-012017-03-01
TechnicalsCore i5-2550KCore i7-7820X X-series
Dimensions (2D) 37.5x37.5 mm
Conflict Free? 1
# CPU Cores 48
Threads/Core 416
Frequency (GHz) 3.4 GHz3.6 GHz
Turbo Frequency (GHz) 3.8 GHz4.3 GHz
Cache (MB) 611
Instructions Width (bits) 6464
Instructions Extensions SSE4.1/4.2, AVXSSE4.1/4.2, AVX 2.0, AVX-512
Lithography Process (nm) 32 nm14 nm
TDP (Watts) 95 W140 W
Max RAM 32 GB128 GB
RAM Types DDR3 1066/1333DDR4-2666
# Memory Channels 24
Memory Bandwidth (GB/Sec) 21GB/s
Max CPU / Package 11
PCI-E Version 23
PCI-E Max Lanes # 1628
Compatible Sockets LGA1155FCLGA2066
Intel Turbo Boost Version 22
Intel V-Pro No
Intel Hyper-Thread NoYes
Intel Virtualization (VTX) YesYes
Intel Directed I/O (VTD) NoYes
Intel Ext. Page Tables (EPT) Yes
Intel 64 YesYes
Idle States Yes
Enhanced Speedstep Yes
Thermal MonitoringTech. Yes
Flex Memory Yes
Intel ID Protect Yes
Intel AES New Instructions YesYes
Trusted Execution No
Execution Disable YesYes


Intel Core i5-2550K vs. Intel Core i7-7820X X-series Specs & Speed Benchmarks

CPU Speed

These tests are designed to stress the CPU components of the processor

Geekbench 4 Multi, Higher is better

Geekbench 4 Single, Higher is better

Memory Bandwidth (GB/Sec), Higher is better


Performance/Price (Value)

Some of the same tests as above, but shown as a relation to the price. This shows what performance you get for each additional dollar spent. The higher the score, and the more value you get for your money

Geekbench 4 Multi / Price, Higher is better