| | | | | | |

Core i7-9700K vs Xeon E5-4640


Description
The i7-9700K is based on Coffee Lake architecture while the E5-4640 is based on Sandy Bridge.

Using the multithread performance as a reference, the i7-9700K gets a score of 375.8 k points while the E5-4640 gets 588.2 k points.

Summarizing, the E5-4640 is 1.6 times faster than the i7-9700K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ed
206d7
Core
Coffee Lake-S
Sandy Bridge-EP
Architecture
Base frecuency
3.6 GHz
2.4 GHz
Boost frecuency
4.9 GHz
2.8 GHz
Socket
LGA 1151
LGA 2011
Cores/Threads
8/8
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
12288 kB
20480 kB
Date
October 2018
May 2012
Mean monothread perf.
81.96k points
13.33k points
Mean multithread perf.
494.38k points
588.16k 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
i7-9700K
E5-4640
Test#1 (Integers)
4.97k
1.66k (x0.34)
Test#2 (FP)
17.98k
5.26k (x0.29)
Test#3 (Generic, ZIP)
5.89k
2.13k (x0.36)
Test#1 (Memory)
14.49k
2.53k (x0.17)
TOTAL
43.32k
11.58k (x0.27)

Multithread

i7-9700K

E5-4640
Test#1 (Integers)
37.81k
77.64k (x2.05)
Test#2 (FP)
138.05k
212.2k (x1.54)
Test#3 (Generic, ZIP)
41.78k
113.11k (x2.71)
Test#1 (Memory)
7.13k
7.54k (x1.06)
TOTAL
224.77k
410.48k (x1.83)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i7-9700K
E5-4640
Test#1 (Integers)
17.94k
6.19k (x0.34)
Test#2 (FP)
25.66k
5.89k (x0.23)
Test#3 (Generic, ZIP)
6.46k
2.11k (x0.33)
Test#1 (Memory)
14.52k
2.51k (x0.17)
TOTAL
64.58k
16.7k (x0.26)

Multithread

i7-9700K

E5-4640
Test#1 (Integers)
136.23k
244.88k (x1.8)
Test#2 (FP)
191.58k
215.35k (x1.12)
Test#3 (Generic, ZIP)
44.51k
114.64k (x2.58)
Test#1 (Memory)
7.25k
6.76k (x0.93)
TOTAL
379.56k
581.63k (x1.53)

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
i7-9700K
E5-4640
Test#1 (Integers)
17.43k
4.79k (x0.27)
Test#2 (FP)
26.9k
4.39k (x0.16)
Test#3 (Generic, ZIP)
6.24k
2.08k (x0.33)
Test#1 (Memory)
14.12k
2.08k (x0.15)
TOTAL
64.69k
13.33k (x0.21)

Multithread

i7-9700K

E5-4640
Test#1 (Integers)
134.6k
242.54k (x1.8)
Test#2 (FP)
191.15k
228.42k (x1.19)
Test#3 (Generic, ZIP)
42.84k
109.28k (x2.55)
Test#1 (Memory)
7.25k
7.92k (x1.09)
TOTAL
375.84k
588.16k (x1.56)

Performance/W
i7-9700K
E5-4640
Test#1 (Integers)
1417 points/W
2553 points/W
Test#2 (FP)
2012 points/W
2404 points/W
Test#3 (Generic, ZIP)
451 points/W
1150 points/W
Test#1 (Memory)
76 points/W
83 points/W
TOTAL
3956 points/W
6191 points/W

Performance/GHz
i7-9700K
E5-4640
Test#1 (Integers)
3557 points/GHz
1709 points/GHz
Test#2 (FP)
5490 points/GHz
1568 points/GHz
Test#3 (Generic, ZIP)
1274 points/GHz
742 points/GHz
Test#1 (Memory)
2881 points/GHz
742 points/GHz
TOTAL
13202 points/GHz
4760 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. 3.11.4