Intel Core i9 9900X vs Intel Core i9 7900X
We compared two desktop CPUs: Intel Core i9 9900X with 10 cores 3.5GHz and Intel Core i9 7900X with 10 cores 3.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i9 9900X Advantages
Released 1 years and 5 months late
Larger memory bandwidth (85GB/s vs 79.47GB/s)
Higher base frequency (3.5GHz vs 3.3GHz)
Larger L3 cache size (20MB vs 14MB)
Intel Core i9 7900X Advantages
Lower TDP (140W vs 165W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i9 9900X
1182
Intel Core i9 7900X
+1%
1203
Cinebench R23 Multi Core
Intel Core i9 9900X
13994
Intel Core i9 7900X
+7%
14998
Geekbench 6 Single Core
Intel Core i9 9900X
+9%
1455
Intel Core i9 7900X
1323
Geekbench 6 Multi Core
Intel Core i9 9900X
+20%
10273
Intel Core i9 7900X
8536
Geekbench 5 Single Core
Intel Core i9 9900X
+3%
1165
Intel Core i9 7900X
1127
Geekbench 5 Multi Core
Intel Core i9 9900X
+5%
10704
Intel Core i9 7900X
10189
Passmark CPU Single Core
Intel Core i9 9900X
2565
Intel Core i9 7900X
2556
Passmark CPU Multi Core
Intel Core i9 9900X
+4%
21833
Intel Core i9 7900X
20991
General Parameters
Oct 2018
Release Date
May 2017
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Skylake
Core Architecture
Skylake
i9-9900X
Processor Number
i9-7900X
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
10
20
Performance Core Threads
20
3.5 GHz
Performance Core Base Frequency
3.3 GHz
4.4 GHz
Performance Core Turbo Frequency
4.3 GHz
10
Total Core Count
10
20
Total Thread Count
20
100 MHz
Bus Frequency
100 MHz
35x
Multiplier
33x
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
14 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
79.47 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
