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Core i3-10100T vs Xeon E5645


Description
The i3-10100T is based on Comet Lake architecture while the E5645 is based on Westmere.

Using the multithread performance as a reference, the i3-10100T gets a score of 173.3 k points while the E5645 gets 77 k points.

Summarizing, the i3-10100T is 2.3 times faster than the E5645 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0653
206c2
Core
Comet Lake-S
Westmere-EP
Architecture
Base frecuency
3.6 GHz
2.4 GHz
Boost frecuency
4.3 GHz
2.8 GHz
Socket
FC-LGA 1200
LGA 1366
Cores/Threads
4/8
6 /6
TDP
65 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
April 2020
March 2010

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
i3-10100T
E5645
Test#1 (Integers)
4325
1779 (-58.86%)
Test#2 (FP)
15695
3910 (-75.09%)
Test#3 (Generic, ZIP)
5036
2524 (-49.88%)
Test#1 (Memory)
7678
2422 (-68.45%)
TOTAL
32734
10636 (-67.51%)

Multithread

i3-10100T

E5645
Test#1 (Integers)
16586
9666 (-41.72%)
Test#2 (FP)
71096
22915 (-67.77%)
Test#3 (Generic, ZIP)
23263
14311 (-38.48%)
Test#1 (Memory)
3861
3808 (-1.37%)
TOTAL
114806
50701 (-55.84%)

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
i3-10100T
E5645
Test#1 (Integers)
13839
6472 (-53.23%)
Test#2 (FP)
19787
4404 (-77.74%)
Test#3 (Generic, ZIP)
5282
2428 (-54.04%)
Test#1 (Memory)
8315
2333 (-71.95%)
TOTAL
47222
15636 (-66.89%)

Multithread

i3-10100T

E5645
Test#1 (Integers)
54670
34434 (-37.02%)
Test#2 (FP)
90708
24230 (-73.29%)
Test#3 (Generic, ZIP)
24109
14479 (-39.94%)
Test#1 (Memory)
3855
3812 (-1.11%)
TOTAL
173341
76955 (-55.60%)

Performance/W
i3-10100T
E5645
Test#1 (Integers)
841 points/W
430 points/W
Test#2 (FP)
1396 points/W
303 points/W
Test#3 (Generic, ZIP)
371 points/W
181 points/W
Test#1 (Memory)
59 points/W
48 points/W
TOTAL
2667 points/W
962 points/W

Performance/GHz
i3-10100T
E5645
Test#1 (Integers)
3218 points/GHz
2311 points/GHz
Test#2 (FP)
4602 points/GHz
1573 points/GHz
Test#3 (Generic, ZIP)
1228 points/GHz
867 points/GHz
Test#1 (Memory)
1934 points/GHz
833 points/GHz
TOTAL
10982 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. 3.7.9