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Core i5-1135G7 vs Xeon E5645


Description
The i5-1135G7 is based on Tiger Lake architecture while the E5645 is based on Westmere.

Using the multithread performance as a reference, the i5-1135G7 gets a score of 141.4 k points while the E5645 gets 77 k points.

Summarizing, the i5-1135G7 is 1.8 times faster than the E5645 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806c1
206c2
Core
Tiger Lake UP3
Westmere-EP
Architecture
Base frecuency
2.4 GHz
2.4 GHz
Boost frecuency
4.2 GHz
2.8 GHz
Socket
BGA 1449
LGA 1366
Cores/Threads
4/8
6 /6
TDP
28 W
80 W
Cache L1 (d+i)
4x32+4x48 kB
64 kB
Cache L2
4x1280 kB
256 kB
Cache L3
8192 kB
12288 kB
Date
September 2020
March 2010
Mean monothread perf.
68.08k points
15.64k points
Mean multithread perf.
237.55k 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
i5-1135G7
E5645
Test#1 (Integers)
3.75k
1.78k (x0.47)
Test#2 (FP)
17.28k
3.91k (x0.23)
Test#3 (Generic, ZIP)
9.5k
2.52k (x0.27)
Test#1 (Memory)
8.81k
2.42k (x0.27)
TOTAL
39.34k
10.64k (x0.27)

Multithread

i5-1135G7

E5645
Test#1 (Integers)
12.43k
9.67k (x0.78)
Test#2 (FP)
54.95k
22.92k (x0.42)
Test#3 (Generic, ZIP)
26.41k
14.31k (x0.54)
Test#1 (Memory)
7.38k
3.81k (x0.52)
TOTAL
101.16k
50.7k (x0.5)

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
i5-1135G7
E5645
Test#1 (Integers)
13.43k
6.47k (x0.48)
Test#2 (FP)
22.29k
4.4k (x0.2)
Test#3 (Generic, ZIP)
11.18k
2.43k (x0.22)
Test#1 (Memory)
9.75k
2.33k (x0.24)
TOTAL
56.64k
15.64k (x0.28)

Multithread

i5-1135G7

E5645
Test#1 (Integers)
40.24k
34.43k (x0.86)
Test#2 (FP)
65.99k
24.23k (x0.37)
Test#3 (Generic, ZIP)
28.51k
14.48k (x0.51)
Test#1 (Memory)
6.66k
3.81k (x0.57)
TOTAL
141.4k
76.96k (x0.54)

Performance/W
i5-1135G7
E5645
Test#1 (Integers)
1437 points/W
430 points/W
Test#2 (FP)
2357 points/W
303 points/W
Test#3 (Generic, ZIP)
1018 points/W
181 points/W
Test#1 (Memory)
238 points/W
48 points/W
TOTAL
5050 points/W
962 points/W

Performance/GHz
i5-1135G7
E5645
Test#1 (Integers)
3197 points/GHz
2311 points/GHz
Test#2 (FP)
5306 points/GHz
1573 points/GHz
Test#3 (Generic, ZIP)
2661 points/GHz
867 points/GHz
Test#1 (Memory)
2321 points/GHz
833 points/GHz
TOTAL
13486 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