Intel Core i9 11900 vs Intel Core i9 9940X
We compared two desktop CPUs: Intel Core i9 11900 with 8 cores 2.5GHz and Intel Core i9 9940X with 14 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 11900 's Advantages
Released 2 years and 5 months late
Integrated graphics card
Higher specification of memory (3200 vs 2666)
Newer PCIe version (4.0 vs 3.0)
Lower TDP (65W vs 165W)
Intel Core i9 9940X 's Advantages
Larger memory bandwidth (85GB/s vs 50GB/s)
Higher base frequency (3.3GHz vs 2.5GHz)
Larger L3 cache size (20MB vs 16MB)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i9 11900
+18%
1451
Intel Core i9 9940X
1228
Cinebench R23 Multi Core
Intel Core i9 11900
13236
Intel Core i9 9940X
+15%
15351
Geekbench 6 Single Core
Intel Core i9 11900
+62%
2152
Intel Core i9 9940X
1328
Geekbench 6 Multi Core
Intel Core i9 11900
5320
Intel Core i9 9940X
+83%
9787
Geekbench 5 Single Core
Intel Core i9 11900
+43%
1709
Intel Core i9 9940X
1189
Geekbench 5 Multi Core
Intel Core i9 11900
9598
Intel Core i9 9940X
+49%
14374
Passmark CPU Single Core
Intel Core i9 11900
+31%
3430
Intel Core i9 9940X
2608
Passmark CPU Multi Core
Intel Core i9 11900
22929
Intel Core i9 9940X
+23%
28355
General Parameters
Mar 2021
Release Date
Oct 2018
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Rocket Lake
Core Architecture
Skylake
i9-11900
Processor Number
i9-9940X
LGA-1200
Socket
LGA-2066
UHD Graphics 750
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
65 W
Power Consumption
165 W
100 °C
Peak Operating Temperature
88 °C
CPU Performance
8
Performance Cores
14
16
Performance Core Threads
28
2.5 GHz
Performance Core Base Frequency
3.3 GHz
5.2 GHz
Performance Core Turbo Frequency
4.4 GHz
8
Total Core Count
14
16
Total Thread Count
28
100 MHz
Bus Frequency
100 MHz
25x
Multiplier
33x
64 K per core
L1 Cache
64 K per core
512 K per core
L2 Cache
1 MB per core
16 MB shared
L3 Cache
20 MB shared
No
Unlocked Multiplier
Yes
Memory Parameters
DDR4-3200
Memory Types
DDR4-2666
128 GB
Max Memory Size
128 GB
2
Max Memory Channels
4
50 GB/s
Max Memory Bandwidth
85 GB/s
No
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
-
300 MHz
GPU Base Frequency
-
1300 MHz
GPU Max Dynamic Frequency
-
256
Shader Units
-
64
Texture Units
-
32
Raster Operation Units
-
32
Execution Units
-
15 W
Power Consumption
-
3840x2160 - 60 Hz
Max Resolution
-
0.46 TFLOPS
Graphics Performance
-
Miscellaneous
4.0
PCIe Version
3.0
20
PCIe Lanes
44
-
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
