Core i7-860 vs Pentium G645
Description
The i7-860 is based on Nehalem architecture while the G645 is based on Sandy Bridge.
Using the multithread performance as a reference, the i7-860 gets a score of 70.7 k points while the G645 gets 35.4 k points.
Summarizing, the i7-860 is 2 times faster than the G645 . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-860 gets a score of 70.7 k points while the G645 gets 35.4 k points.
Summarizing, the i7-860 is 2 times faster than the G645 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
106e5
206a7
Core
Lynnfield
Sandy Bridge
Base frecuency
2.8 GHz
2.9 GHz
Boost frecuency
3.467 GHz
2.9 GHz
Socket
LGA 1156
LGA 1155
Cores/Threads
4/8
2/2
TDP
95 W
65 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
8192 kB
3072 kB
Date
September 2009
September 2012
Mean monothread perf.
19.07k points
22.24k points
Mean multithread perf.
70.68k 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
i7-860
G645
Test#1 (Integers)
7.83k
8.66k (x1.11)
Test#2 (FP)
5.23k
6.9k (x1.32)
Test#3 (Generic, ZIP)
2.91k
3.48k (x1.2)
Test#1 (Memory)
3.09k
3.2k (x1.03)
TOTAL
19.07k
22.24k (x1.17)
Multithread
i7-860
G645
Test#1 (Integers)
29.29k
14.06k (x0.48)
Test#2 (FP)
22.75k
11.82k (x0.52)
Test#3 (Generic, ZIP)
14.04k
5.83k (x0.42)
Test#1 (Memory)
4.6k
3.69k (x0.8)
TOTAL
70.68k
35.38k (x0.5)
Performance/W
i7-860
G645
Test#1 (Integers)
308 points/W
216 points/W
Test#2 (FP)
240 points/W
182 points/W
Test#3 (Generic, ZIP)
148 points/W
90 points/W
Test#1 (Memory)
48 points/W
57 points/W
TOTAL
744 points/W
544 points/W
Performance/GHz
i7-860
G645
Test#1 (Integers)
2259 points/GHz
2987 points/GHz
Test#2 (FP)
1509 points/GHz
2380 points/GHz
Test#3 (Generic, ZIP)
839 points/GHz
1199 points/GHz
Test#1 (Memory)
892 points/GHz
1103 points/GHz
TOTAL
5500 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