Intel Core i9 10900K vs Intel Core i9 9940X
We compared two desktop CPUs: Intel Core i9 10900K with 10 cores 3.7GHz 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 10900K 's Advantages
Released 1 years and 7 months late
Integrated graphics card
Higher specification of memory (2933 vs 2666)
Higher base frequency (3.7GHz vs 3.3GHz)
Lower TDP (125W vs 165W)
Intel Core i9 9940X 's Advantages
Larger memory bandwidth (85GB/s vs 45.8GB/s)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i9 10900K
+11%
1375
Intel Core i9 9940X
1228
Cinebench R23 Multi Core
Intel Core i9 10900K
13761
Intel Core i9 9940X
+11%
15351
Geekbench 6 Single Core
Intel Core i9 10900K
+28%
1703
Intel Core i9 9940X
1328
Geekbench 6 Multi Core
Intel Core i9 10900K
9367
Intel Core i9 9940X
+4%
9787
Geekbench 5 Single Core
Intel Core i9 10900K
+11%
1324
Intel Core i9 9940X
1189
Geekbench 5 Multi Core
Intel Core i9 10900K
10773
Intel Core i9 9940X
+33%
14374
Passmark CPU Single Core
Intel Core i9 10900K
+20%
3135
Intel Core i9 9940X
2608
Passmark CPU Multi Core
Intel Core i9 10900K
22996
Intel Core i9 9940X
+23%
28355
General Parameters
May 2020
Release Date
Oct 2018
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Comet Lake
Core Architecture
Skylake
i9-10900K
Processor Number
i9-9940X
LGA-1200
Socket
LGA-2066
UHD Graphics 630
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
125 W
Power Consumption
165 W
100°C
Peak Operating Temperature
88 °C
CPU Performance
10
Performance Cores
14
20
Performance Core Threads
28
3.7 GHz
Performance Core Base Frequency
3.3 GHz
5.3 GHz
Performance Core Turbo Frequency
4.4 GHz
10
Total Core Count
14
20
Total Thread Count
28
100 MHz
Bus Frequency
100 MHz
37x
Multiplier
33x
64 K per core
L1 Cache
64 K per core
256 K per core
L2 Cache
1 MB per core
20 MB shared
L3 Cache
20 MB shared
Yes
Unlocked Multiplier
Yes
Memory Parameters
DDR4-2933
Memory Types
DDR4-2666
128 GB
Max Memory Size
128 GB
2
Max Memory Channels
4
45.8 GB/s
Max Memory Bandwidth
85 GB/s
No
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
-
350 MHz
GPU Base Frequency
-
1200 MHz
GPU Max Dynamic Frequency
-
192
Shader Units
-
24
Texture Units
-
3
Raster Operation Units
-
24
Execution Units
-
15 W
Power Consumption
-
4096x2304 - 60 Hz
Max Resolution
-
0.38 TFLOPS
Graphics Performance
-
Miscellaneous
3.0
PCIe Version
3.0
16
PCIe Lanes
44
-
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
