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Core i7-2640M vs Xeon E5-2680 v2


Description
The i7-2640M is based on Sandy Bridge architecture while the E5-2680 v2 is based on Ivy Bridge.

Using the multithread performance as a reference, the i7-2640M gets a score of 54.9 k points while the E5-2680 v2 gets 551.1 k points.

Summarizing, the E5-2680 v2 is 10 times faster than the i7-2640M. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206a7
306e4
Core
Sandy Bridge
Ivy Bridge-EP
Architecture
Base frecuency
2.8 GHz
2.8 GHz
Boost frecuency
3.5 GHz
3.6 GHz
Socket
PGA 988B
LGA 2011
Cores/Threads
2/4
10 /20
TDP
35 W
115 W
Cache L1 (d+i)
2x32+2x32 kB
10x32+10x32 kB
Cache L2
2x256 kB
10x256 kB
Cache L3
4096 kB
25600 kB
Date
September 2011
September 2013
Mean monothread perf.
25.86k points
28.23k points
Mean multithread perf.
54.86k points
551.1k points

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
i7-2640M
E5-2680 v2
Test#1 (Integers)
9.63k
10.55k (x1.1)
Test#2 (FP)
8.33k
10.02k (x1.2)
Test#3 (Generic, ZIP)
4.08k
3.99k (x0.98)
Test#1 (Memory)
3.82k
3.66k (x0.96)
TOTAL
25.86k
28.23k (x1.09)

Multithread

i7-2640M

E5-2680 v2
Test#1 (Integers)
21.22k
215.04k (x10.13)
Test#2 (FP)
19.6k
230.43k (x11.75)
Test#3 (Generic, ZIP)
10.09k
96.87k (x9.6)
Test#1 (Memory)
3.94k
8.76k (x2.22)
TOTAL
54.86k
551.1k (x10.05)

Performance/W
i7-2640M
E5-2680 v2
Test#1 (Integers)
606 points/W
1870 points/W
Test#2 (FP)
560 points/W
2004 points/W
Test#3 (Generic, ZIP)
288 points/W
842 points/W
Test#1 (Memory)
112 points/W
76 points/W
TOTAL
1567 points/W
4792 points/W

Performance/GHz
i7-2640M
E5-2680 v2
Test#1 (Integers)
2752 points/GHz
2931 points/GHz
Test#2 (FP)
2380 points/GHz
2784 points/GHz
Test#3 (Generic, ZIP)
1165 points/GHz
1109 points/GHz
Test#1 (Memory)
1092 points/GHz
1017 points/GHz
TOTAL
7390 points/GHz
7841 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