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Core i7-7700HQ vs Xeon E5645


Description
The i7-7700HQ is based on Kaby Lake architecture while the E5645 is based on Westmere.

Using the multithread performance as a reference, the i7-7700HQ gets a score of 167.4 k points while the E5645 gets 77 k points.

Summarizing, the i7-7700HQ is 2.2 times faster than the E5645 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
206c2
Core
Kaby Lake-H
Westmere-EP
Architecture
Base frecuency
2.8 GHz
2.4 GHz
Boost frecuency
3.8 GHz
2.8 GHz
Socket
BGA1440
LGA 1366
Cores/Threads
4/8
6 /6
TDP
45 W
80 W
Cache L1 (d+i)
4x32+4x32 kB
64 kB
Cache L2
4x256 kB
256 kB
Cache L3
6144 kB
12288 kB
Date
January 2017
March 2010
Mean monothread perf.
56.29k points
15.64k points
Mean multithread perf.
208.33k points
76.96k 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
i7-7700HQ
E5645
Test#1 (Integers)
3.82k
1.78k (x0.47)
Test#2 (FP)
15.49k
3.91k (x0.25)
Test#3 (Generic, ZIP)
4.96k
2.52k (x0.51)
Test#1 (Memory)
8.82k
2.42k (x0.27)
TOTAL
33.09k
10.64k (x0.32)

Multithread

i7-7700HQ

E5645
Test#1 (Integers)
14.15k
9.67k (x0.68)
Test#2 (FP)
65.81k
22.92k (x0.35)
Test#3 (Generic, ZIP)
22.41k
14.31k (x0.64)
Test#1 (Memory)
5.21k
3.81k (x0.73)
TOTAL
107.57k
50.7k (x0.47)

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
i7-7700HQ
E5645
Test#1 (Integers)
13.75k
6.47k (x0.47)
Test#2 (FP)
19.69k
4.4k (x0.22)
Test#3 (Generic, ZIP)
5.19k
2.43k (x0.47)
Test#1 (Memory)
8.92k
2.33k (x0.26)
TOTAL
47.55k
15.64k (x0.33)

Multithread

i7-7700HQ

E5645
Test#1 (Integers)
52.55k
34.43k (x0.66)
Test#2 (FP)
86.47k
24.23k (x0.28)
Test#3 (Generic, ZIP)
23.02k
14.48k (x0.63)
Test#1 (Memory)
5.4k
3.81k (x0.71)
TOTAL
167.43k
76.96k (x0.46)

Performance/W
i7-7700HQ
E5645
Test#1 (Integers)
1168 points/W
430 points/W
Test#2 (FP)
1922 points/W
303 points/W
Test#3 (Generic, ZIP)
511 points/W
181 points/W
Test#1 (Memory)
120 points/W
48 points/W
TOTAL
3721 points/W
962 points/W

Performance/GHz
i7-7700HQ
E5645
Test#1 (Integers)
3620 points/GHz
2311 points/GHz
Test#2 (FP)
5182 points/GHz
1573 points/GHz
Test#3 (Generic, ZIP)
1365 points/GHz
867 points/GHz
Test#1 (Memory)
2347 points/GHz
833 points/GHz
TOTAL
12514 points/GHz
5584 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