Core i9-9900K vs i9-9900K
Description
Both models i9-9900K and i9-9900K are based on Coffee Lake architecture.
Coffee Lake is the second refinement of Intel’s 14nm (Tri-Gate) technology. While it uses LGA1151 socket, it is incompatible with previous generations due to electrical changes in socket’s pins so these CPUs require Z370 chipset. This kind of generation introduced more cores in every range to compete with new AMD’s architecture. Coffee Lake uses DDR4 memory at 2400MHz for i3 and at 2666MHz for i5, i7 CPUs plus iGPU frequency has been increased 50MHz with respect to previous generation.
Using the multithread performance as a reference, the i9-9900K gets a score of 545.3 k points while the i9-9900K gets 529.3 k points.
Summarizing, the i9-9900K is 1 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.
Coffee Lake is the second refinement of Intel’s 14nm (Tri-Gate) technology. While it uses LGA1151 socket, it is incompatible with previous generations due to electrical changes in socket’s pins so these CPUs require Z370 chipset. This kind of generation introduced more cores in every range to compete with new AMD’s architecture. Coffee Lake uses DDR4 memory at 2400MHz for i3 and at 2666MHz for i5, i7 CPUs plus iGPU frequency has been increased 50MHz with respect to previous generation.
Using the multithread performance as a reference, the i9-9900K gets a score of 545.3 k points while the i9-9900K gets 529.3 k points.
Summarizing, the i9-9900K is 1 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ec
906ed
Core
Coffee Lake-S
Coffee Lake-S
Base frecuency
3.6 GHz
3.6 GHz
Boost frecuency
5 GHz
5 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
8/16
8/16
TDP
95 W
95 W
Cache L1 (d+i)
8x32+8x32 kB
8x32+8x32 kB
Cache L2
8x256 kB
8x256 kB
Cache L3
16384 kB
16384 kB
Date
October 2018
October 2018
Mean monothread perf.
86.24k points
81.91k points
Mean multithread perf.
545.3k points
529.32k points
Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i9-9900K
i9-9900K
Test#1 (Integers)
5.17k
5k (x0.97)
Test#2 (FP)
21.15k
20.22k (x0.96)
Test#3 (Generic, ZIP)
7.01k
6.54k (x0.93)
Test#1 (Memory)
15.32k
13.78k (x0.9)
TOTAL
48.66k
45.53k (x0.94)
Multithread
i9-9900K
i9-9900K
Test#1 (Integers)
38.45k
36.39k (x0.95)
Test#2 (FP)
155.68k
166.55k (x1.07)
Test#3 (Generic, ZIP)
51k
54.92k (x1.08)
Test#1 (Memory)
18.26k
8.96k (x0.49)
TOTAL
263.38k
266.82k (x1.01)
AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i9-9900K
i9-9900K
Test#1 (Integers)
33.62k
32.08k (x0.95)
Test#2 (FP)
30.02k
28.17k (x0.94)
Test#3 (Generic, ZIP)
7.17k
6.68k (x0.93)
Test#1 (Memory)
15.43k
14.98k (x0.97)
TOTAL
86.24k
81.91k (x0.95)
Multithread
i9-9900K
i9-9900K
Test#1 (Integers)
248.93k
242.98k (x0.98)
Test#2 (FP)
224.43k
220.16k (x0.98)
Test#3 (Generic, ZIP)
53.39k
53.97k (x1.01)
Test#1 (Memory)
18.54k
12.22k (x0.66)
TOTAL
545.3k
529.32k (x0.97)
Performance/W
i9-9900K
i9-9900K
Test#1 (Integers)
2620 points/W
2558 points/W
Test#2 (FP)
2362 points/W
2317 points/W
Test#3 (Generic, ZIP)
562 points/W
568 points/W
Test#1 (Memory)
195 points/W
129 points/W
TOTAL
5740 points/W
5572 points/W
Performance/GHz
i9-9900K
i9-9900K
Test#1 (Integers)
6724 points/GHz
6417 points/GHz
Test#2 (FP)
6003 points/GHz
5634 points/GHz
Test#3 (Generic, ZIP)
1434 points/GHz
1335 points/GHz
Test#1 (Memory)
3087 points/GHz
2996 points/GHz
TOTAL
17247 points/GHz
16382 points/GHz
Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.
Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.
Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.
Test#1 (Integers) [points vs time]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.
If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.
If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.
Test#1 (Integers) [points vs time]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4