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Xeon E5645 vs Core i5-4690K


Description
The E5645 is based on Westmere architecture while the i5-4690K is based on Haswell.

Using the multithread performance as a reference, the E5645 gets a score of 77 k points while the i5-4690K gets 117 k points.

Summarizing, the i5-4690K is 1.5 times faster than the E5645 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206c2
306c3
Core
Westmere-EP
Haswell
Architecture
Base frecuency
2.4 GHz
3.5 GHz
Boost frecuency
2.8 GHz
3.9 GHz
Socket
LGA 1366
LGA 1150
Cores/Threads
6 /6
4/4
TDP
80 W
88 W
Cache L1 (d+i)
64 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
12288 kB
6144 kB
Date
March 2010
June 2014
Mean monothread perf.
15.64k points
34.37k points
Mean multithread perf.
76.96k points
117.37k 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
E5645
i5-4690K
Test#1 (Integers)
1.78k
4.39k (x2.47)
Test#2 (FP)
3.91k
10.93k (x2.8)
Test#3 (Generic, ZIP)
2.52k
4.82k (x1.91)
Test#1 (Memory)
2.42k
4.11k (x1.7)
TOTAL
10.64k
24.26k (x2.28)

Multithread

E5645

i5-4690K
Test#1 (Integers)
9.67k
8.67k (x0.9)
Test#2 (FP)
22.92k
21.42k (x0.93)
Test#3 (Generic, ZIP)
14.31k
9.52k (x0.67)
Test#1 (Memory)
3.81k
4.18k (x1.1)
TOTAL
50.7k
43.79k (x0.86)

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
E5645
i5-4690K
Test#1 (Integers)
6.47k
13.67k (x2.11)
Test#2 (FP)
4.4k
11.97k (x2.72)
Test#3 (Generic, ZIP)
2.43k
5.12k (x2.11)
Test#1 (Memory)
2.33k
4.4k (x1.89)
TOTAL
15.64k
35.17k (x2.25)

Multithread

E5645

i5-4690K
Test#1 (Integers)
34.43k
51.76k (x1.5)
Test#2 (FP)
24.23k
43.26k (x1.79)
Test#3 (Generic, ZIP)
14.48k
19.32k (x1.33)
Test#1 (Memory)
3.81k
2.69k (x0.7)
TOTAL
76.96k
117.03k (x1.52)

Performance/W
E5645
i5-4690K
Test#1 (Integers)
430 points/W
588 points/W
Test#2 (FP)
303 points/W
492 points/W
Test#3 (Generic, ZIP)
181 points/W
220 points/W
Test#1 (Memory)
48 points/W
31 points/W
TOTAL
962 points/W
1330 points/W

Performance/GHz
E5645
i5-4690K
Test#1 (Integers)
2311 points/GHz
3506 points/GHz
Test#2 (FP)
1573 points/GHz
3070 points/GHz
Test#3 (Generic, ZIP)
867 points/GHz
1314 points/GHz
Test#1 (Memory)
833 points/GHz
1129 points/GHz
TOTAL
5584 points/GHz
9019 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