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Core i7-7700K vs Ryzen 7 2700X


Description
The i7-7700K is based on Kaby Lake architecture while the 2700X is based on Zen+.

Using the multithread performance as a reference, the i7-7700K gets a score of 291.1 k points while the 2700X gets 433.2 k points.

Summarizing, the 2700X is 1.5 times faster than the i7-7700K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
800f82
Core
Kaby Lake-S
Pinnacle Ridge
Architecture
Base frecuency
4.2 GHz
3.7 GHz
Boost frecuency
4.5 GHz
4.3 GHz
Socket
LGA 1151
AM4
Cores/Threads
4/8
8/16
TDP
95 W
105 W
Cache L1 (d+i)
32+32 kB
8x64+8x32 kB
Cache L2
256 kB
8x512 kB
Cache L3
8192 kB
16384 kB
Date
September 2016
April 2018

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
i7-7700K
2700X
Test#1 (Integers)
4629
4255 (-8.09%)
Test#2 (FP)
18925
19716 (4.18%)
Test#3 (Generic, ZIP)
6221
5841 (-6.12%)
Test#1 (Memory)
13922
21357 (53.40%)
TOTAL
43698
51169 (17.10%)

Multithread

i7-7700K

2700X
Test#1 (Integers)
18529
35045 (89.13%)
Test#2 (FP)
86487
181421 (109.77%)
Test#3 (Generic, ZIP)
28778
64862 (125.39%)
Test#1 (Memory)
9674
8208 (-15.15%)
TOTAL
143468
289536 (101.81%)

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i7-7700K
2700X
Test#1 (Integers)
17549
14438 (-17.72%)
Test#2 (FP)
27822
24922 (-10.43%)
Test#3 (Generic, ZIP)
6796
5804 (-14.59%)
Test#1 (Memory)
14832
19072 (28.59%)
TOTAL
66999
64236 (-4.12%)

Multithread

i7-7700K

2700X
Test#1 (Integers)
68395
122006 (78.38%)
Test#2 (FP)
118805
220344 (85.47%)
Test#3 (Generic, ZIP)
33336
59885 (79.64%)
Test#1 (Memory)
17434
9899 (-43.22%)
TOTAL
237970
412133 (73.19%)

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
i7-7700K
2700X
Test#1 (Integers)
30864
15613 (-49.41%)
Test#2 (FP)
27262
26078 (-4.34%)
Test#3 (Generic, ZIP)
6421
5835 (-9.12%)
Test#1 (Memory)
13994
18344 (31.08%)
TOTAL
78541
65870 (-16.13%)

Multithread

i7-7700K

2700X
Test#1 (Integers)
129531
123326 (-4.79%)
Test#2 (FP)
122200
240462 (96.78%)
Test#3 (Generic, ZIP)
29617
61231 (106.74%)
Test#1 (Memory)
9751
8168 (-16.24%)
TOTAL
291099
433187 (48.81%)

Performance/W
i7-7700K
2700X
Test#1 (Integers)
1363 points/W
1175 points/W
Test#2 (FP)
1286 points/W
2290 points/W
Test#3 (Generic, ZIP)
312 points/W
583 points/W
Test#1 (Memory)
103 points/W
78 points/W
TOTAL
3064 points/W
4126 points/W

Performance/GHz
i7-7700K
2700X
Test#1 (Integers)
6859 points/GHz
3631 points/GHz
Test#2 (FP)
6058 points/GHz
6065 points/GHz
Test#3 (Generic, ZIP)
1427 points/GHz
1357 points/GHz
Test#1 (Memory)
3110 points/GHz
4266 points/GHz
TOTAL
17453 points/GHz
15319 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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.7.9