Core 2 Duo E7400 vs Pentium G645
Description
The E7400 is based on Core architecture while the G645 is based on Sandy Bridge.
Using the multithread performance as a reference, the E7400 gets a score of 25.7 k points while the G645 gets 35.4 k points.
Summarizing, the G645 is 1.4 times faster than the E7400 . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the E7400 gets a score of 25.7 k points while the G645 gets 35.4 k points.
Summarizing, the G645 is 1.4 times faster than the E7400 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
1067a
206a7
Core
Wolfdale
Sandy Bridge
Base frecuency
2.8 GHz
2.9 GHz
Socket
LGA 775
LGA 1155
Cores/Threads
2/2
2/2
TDP
65 W
65 W
Cache L1 (d+i)
32+32 kB
2x32+2x32 kB
Cache L2
3072 kB
2x256 kB
Cache L3
0 kB
3072 kB
Date
October 2008
September 2012
Mean monothread perf.
14.31k points
22.24k points
Mean multithread perf.
25.71k points
35.38k points
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
E7400
G645
Test#1 (Integers)
3.19k
8.66k (x2.72)
Test#2 (FP)
7.02k
6.9k (x0.98)
Test#3 (Generic, ZIP)
2.71k
3.48k (x1.28)
Test#1 (Memory)
1.39k
3.2k (x2.3)
TOTAL
14.31k
22.24k (x1.55)
Multithread
E7400
G645
Test#1 (Integers)
6.02k
14.06k (x2.34)
Test#2 (FP)
13.23k
11.82k (x0.89)
Test#3 (Generic, ZIP)
5.12k
5.83k (x1.14)
Test#1 (Memory)
1.34k
3.69k (x2.75)
TOTAL
25.71k
35.38k (x1.38)
Performance/W
E7400
G645
Test#1 (Integers)
93 points/W
216 points/W
Test#2 (FP)
204 points/W
182 points/W
Test#3 (Generic, ZIP)
79 points/W
90 points/W
Test#1 (Memory)
21 points/W
57 points/W
TOTAL
396 points/W
544 points/W
Performance/GHz
E7400
G645
Test#1 (Integers)
1139 points/GHz
2987 points/GHz
Test#2 (FP)
2507 points/GHz
2380 points/GHz
Test#3 (Generic, ZIP)
969 points/GHz
1199 points/GHz
Test#1 (Memory)
496 points/GHz
1103 points/GHz
TOTAL
5111 points/GHz
7669 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4