Core i9-9900KF vs Core i7-7800X Full Specifications

Core i9-9900KF vs Core i7-7800X Specifications

The Intel Core i9-9900KF is a Desktop processor with 8 cores, launched in 2019. It is part of the Core i9 lineup, using the Coffee Lake Refresh architecture with Socket LGA1151. The core-count is effectively doubled, to 16 threads. Core i9-9900KF has 16MB of L3 cache and operates at 3.6 GHz by default, but can boost up to 5 GHz, depending on the workload. Intel is building the Core i9-9900KF on a 14 nm production process. You may freely adjust the unlocked multiplier on Core i9-9900KF, which simplifies overclocking greatly, as you can dial in any overclocking frequency up to 5GHz. Intel's processor supports DDR4 memory with a dual-channel interface. It is worth noting that this processor does not have integrated graphics. This processor can run on motherboards with the following chipsets: B150, B250, B360, B365, C232, C236, C246, H110, H170, H270, H310, H370, Q170, Q270, Q370, Z170, Z270, Z370, Z390.

The Intel Core i7-7800X is a Desktop processor with 6 cores, launched in 2017. It is part of the Core i7 lineup, using the Skylake-X architecture with Socket LGA2066. The core-count is effectively doubled, to 12 threads. Core i7-7800X has 8.25MB of L3 cache and operates at 3.5 GHz by default, but can boost up to 4.2 GHz, depending on the workload. Intel is building the Core i7-7800X on a 14 nm production process. You may freely adjust the unlocked multiplier on Core i7-7800X, which simplifies overclocking greatly, as you can dial in any overclocking frequency up to 4.5GHz. With a TDP of 140 W, the Core i7-7800X consumes a lot of power, so good cooling is definitely needed. Intel's processor supports DDR4 memory with a dual-channel interface. It is worth noting that this processor does not have integrated graphics. This processor can run on motherboards with the following chipsets: X299.

Core i9-9900KF vs Core i7-7800X General

Core i9-9900KF Core i7-7800X
Manufacturer Intel Intel
Core Family Coffee Lake Refresh Skylake-X
Series Intel Core i9 Intel Core i7
Type Desktop Desktop
Architecture Coffee Lake Refresh Skylake-X
Achitecture codename Coffee Lake Skylake (server)
Microarchitecture Coffee Lake Refresh Skylake
Market price $ 561.99 $ 389
Release date on January 2019 on June 2017
Launch price (MSRP) $488 $389
Price now $562 $379
Place in performance rating 71 161
Value for money (0-100) 10.83 11.54
Manufacturing process technology 14 nm 14 nm

Core i9-9900KF vs Core i7-7800X Compatibility

Core i9-9900KF Core i7-7800X
Power consumption (TDP) 95 Watt 140 Watt
Max number of CPUs in a configuration 1 1 (Uniprocessor)
Max number of PCIe lanes 16 -
PCIe lanes 16 28
PCIe revision 3.0 -
PCIe version 3.0 3.0
Socket LGA1151 LGA2066

Core i9-9900KF vs Core i7-7800X Benchmarks

Core i9-9900KF Core i7-7800X
Boost Clock 5 GHz 4 GHz
CPU Cores 8 6
CPU Threads 16 12
Core Clock 3.6 GHz 3.5 GHz
Core Count 8 6
Frequency 3.60 GHz 3.50 GHz
Hyper-Threading + -
Hyperthreading Yes Yes
L1 Cache 8 x 32 kB Instruction 8 x 32 kB Data 6 x 32 kB Instruction 6 x 32 kB Data
L1 cache 512 KB 384 KB
L2 Cache 8 x 256 kB 6 x 1 MB
L2 cache 256K (per core) 6 MB
L3 Cache 8 x 2 MB 1 x 8.25 MB
L3 cache 16 MB (shared) 8.25 MB (shared)
L3-Cache 16.00 MB 8.00 MB
Maximum frequency 5 GHz 3.5 GHz
Simultaneous Multithreading Yes: Hyper-Threading Yes: Hyper-Threading
TDP 95 W 140 W
TDP down -- --
TDP up -- --
Turbo (1 Core) 5.00 GHz 4.20 GHz
Turbo (8 Cores) 4.70 GHz -
Turbo Boost 2.0 -

Core i9-9900KF vs Core i7-7800X Memory Specifications

Core i9-9900KF Core i7-7800X
ECC No No
ECC Support No No
Max memory channels 2 4
Maximum Supported Memory 128 GB 128 GB
Maximum memory bandwidth 41.6 GB / s 79.47 GB / s
Maximum memory size 128 GB 128 GB
Memory channels 2 4
Memory type DDR4-2666 DDR4-2400
Supported memory types DDR4-2666 DDR4-2400
Max. Memory 128 GB

Core i9-9900KF vs Core i7-7800X Technical Specs

Core i9-9900KF Core i7-7800X
64 bit support + +
Bus support 4 × 8 GT / s 4 × 8 GT / s
Includes CPU Cooler No No
Maximum case temperature (TCase) 72 °C 72 °C
Maximum core temperature 100 °C -
Number of cores 8 6
Number of threads 16 12
Overclocking Yes Yes
Part # BX80684I99900KF BXC80673I77800X
Technology 14 nm 14 nm
Tjunction max. 100 °C --
Unlocked + +

Core i9-9900KF vs Core i7-7800X Integrated Graphics

Core i9-9900KF Core i7-7800X
DirectX Version
Execution units
GPU (Turbo) No turbo No turbo
GPU frequency
Generation
Integrated Graphics None None
Lithography 14 nm 14 nm
Max. displays 0 0

Core i9-9900KF vs Core i7-7800X Security Technologies

Core i9-9900KF Core i7-7800X
EDB + -
Identity Protection + -
MPX + -
OS Guard + -
SGX Yes with Intel® ME -
Secure Key + -
TXT - -

Core i9-9900KF vs Core i7-7800X Technologies and Extensions

Core i9-9900KF Core i7-7800X
AES-NI + +
AVX + +
Enhanced SpeedStep (EIST) + -
Idle States + -
Instruction set extensions Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 -
TSX + -
Thermal Monitoring + -
vPro - -

Core i9-9900KF vs Core i7-7800X Virtualization Technologies

Core i9-9900KF Core i7-7800X
EPT + -
VT-d + +
VT-x + +
Virtualization VT-x, VT-x EPT, VT-d VT-x, VT-d

Core i9-9900KF vs Core i7-7800X Other

Core i9-9900KF Core i7-7800X
Packaging Boxed Boxed
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