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Xeon E5-4640 vs Core i9-9900K


Description
The E5-4640 is based on Sandy Bridge architecture while the i9-9900K is based on Coffee Lake.

Using the multithread performance as a reference, the E5-4640 gets a score of 610.2 k points while the i9-9900K gets 402.4 k points.

Summarizing, the E5-4640 is 1.5 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206d7
906ed
Core
Sandy Bridge-EP
Coffee Lake-S
Architecture
Base frecuency
2.4 GHz
3.6 GHz
Boost frecuency
2.8 GHz
5 GHz
Socket
LGA 2011
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
20480 kB
16384 kB
Date
May 2012
October 2018
Mean monothread perf.
13.88k points
81.91k points
Mean multithread perf.
610.16k 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
E5-4640
i9-9900K
Test#1 (Integers)
1.66k
5k (x3)
Test#2 (FP)
5.26k
20.22k (x3.84)
Test#3 (Generic, ZIP)
2.13k
6.54k (x3.08)
Test#1 (Memory)
2.53k
13.78k (x5.44)
TOTAL
11.58k
45.53k (x3.93)

Multithread

E5-4640

i9-9900K
Test#1 (Integers)
77.64k
36.39k (x0.47)
Test#2 (FP)
212.2k
166.55k (x0.78)
Test#3 (Generic, ZIP)
113.11k
54.92k (x0.49)
Test#1 (Memory)
7.54k
8.96k (x1.19)
TOTAL
410.48k
266.82k (x0.65)

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
E5-4640
i9-9900K
Test#1 (Integers)
6.19k
18.03k (x2.91)
Test#2 (FP)
5.89k
25.98k (x4.41)
Test#3 (Generic, ZIP)
2.11k
6.86k (x3.24)
Test#1 (Memory)
2.51k
14.5k (x5.78)
TOTAL
16.7k
65.37k (x3.91)

Multithread

E5-4640

i9-9900K
Test#1 (Integers)
244.88k
131.34k (x0.54)
Test#2 (FP)
215.35k
204.76k (x0.95)
Test#3 (Generic, ZIP)
114.64k
55.74k (x0.49)
Test#1 (Memory)
6.76k
8.99k (x1.33)
TOTAL
581.63k
400.83k (x0.69)

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
E5-4640
i9-9900K
Test#1 (Integers)
5.01k
17.98k (x3.59)
Test#2 (FP)
4.5k
27.04k (x6)
Test#3 (Generic, ZIP)
2.18k
6.63k (x3.05)
Test#1 (Memory)
2.19k
13.6k (x6.21)
TOTAL
13.88k
65.24k (x4.7)

Multithread

E5-4640

i9-9900K
Test#1 (Integers)
251.29k
130.88k (x0.52)
Test#2 (FP)
236.61k
208.5k (x0.88)
Test#3 (Generic, ZIP)
114.89k
54.12k (x0.47)
Test#1 (Memory)
7.36k
8.91k (x1.21)
TOTAL
610.16k
402.41k (x0.66)

Performance/W
E5-4640
i9-9900K
Test#1 (Integers)
2645 points/W
1378 points/W
Test#2 (FP)
2491 points/W
2195 points/W
Test#3 (Generic, ZIP)
1209 points/W
570 points/W
Test#1 (Memory)
78 points/W
94 points/W
TOTAL
6423 points/W
4236 points/W

Performance/GHz
E5-4640
i9-9900K
Test#1 (Integers)
1790 points/GHz
3596 points/GHz
Test#2 (FP)
1609 points/GHz
5408 points/GHz
Test#3 (Generic, ZIP)
777 points/GHz
1325 points/GHz
Test#1 (Memory)
782 points/GHz
2720 points/GHz
TOTAL
4957 points/GHz
13049 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