Intel Core i9 9900X vs Intel Core i9 7920X
We compared two desktop CPUs: Intel Core i9 9900X with 10 cores 3.5GHz and Intel Core i9 7920X with 12 cores 2.9GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i9 9900X 's Advantages
Released 1 years and 2 months late
Higher base frequency (3.5GHz vs 2.9GHz)
Larger L3 cache size (20MB vs 17MB)
Intel Core i9 7920X 's Advantages
Lower TDP (140W vs 165W)
Score
Benchmark
Geekbench 6 Single Core
Intel Core i9 9900X
+38%
1455
Intel Core i9 7920X
1053
Geekbench 6 Multi Core
Intel Core i9 9900X
+137%
10273
Intel Core i9 7920X
4327
Geekbench 5 Single Core
Intel Core i9 9900X
+2%
1165
Intel Core i9 7920X
1137
Geekbench 5 Multi Core
Intel Core i9 9900X
10704
Intel Core i9 7920X
+10%
11828
Passmark CPU Single Core
Intel Core i9 9900X
+3%
2565
Intel Core i9 7920X
2488
Passmark CPU Multi Core
Intel Core i9 9900X
21833
Intel Core i9 7920X
+7%
23468
General Parameters
Oct 2018
Release Date
Aug 2017
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Skylake
Core Architecture
Skylake
i9-9900X
Processor Number
i9-7920X
LGA-2066
Socket
LGA-2066
N/A
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
165 W
Power Consumption
140 W
92 °C
Peak Operating Temperature
95 °C
CPU Performance
10
Performance Cores
12
20
Performance Core Threads
24
3.5 GHz
Performance Core Base Frequency
2.9 GHz
4.4 GHz
Performance Core Turbo Frequency
4.3 GHz
10
Total Core Count
12
20
Total Thread Count
24
100 MHz
Bus Frequency
100 MHz
35x
Multiplier
29x
64 K per core
L1 Cache
64 K per core
1 MB per core
L2 Cache
1 MB per core
20 MB shared
L3 Cache
17 MB shared
Yes
Unlocked Multiplier
Yes
Memory Parameters
DDR4-2666
Memory Types
DDR4-2666
128 GB
Max Memory Size
128 GB
4
Max Memory Channels
4
85 GB/s
Max Memory Bandwidth
85 GB/s
No
ECC Memory Support
No
Miscellaneous
3.0
PCIe Version
3.0
44
PCIe Lanes
44
SSE4.1, SSE4.2, AVX-2, AVX-512
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
