Pentium G645 vs Xeon X5675
Description
The G645 is based on Sandy Bridge architecture while the X5675 is based on Westmere.
Using the multithread performance as a reference, the G645 gets a score of 35.4 k points while the X5675 gets 124.9 k points.
Summarizing, the X5675 is 3.5 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 G645 gets a score of 35.4 k points while the X5675 gets 124.9 k points.
Summarizing, the X5675 is 3.5 times faster than the G645 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
206a7
206c2
Core
Sandy Bridge
Westmere-EP
Base frecuency
2.9 GHz
3.067 GHz
Boost frecuency
2.9 GHz
3.467 GHz
Socket
LGA 1155
LGA 1366
Cores/Threads
2/2
6 /12
TDP
65 W
95 W
Cache L1 (d+i)
2x32+2x32 kB
6x32+6x32 kB
Cache L2
2x256 kB
6x256 kB
Cache L3
3072 kB
12288 kB
Date
September 2012
February 2011
Mean monothread perf.
22.24k points
21.04k points
Mean multithread perf.
35.38k points
124.92k 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
G645
X5675
Test#1 (Integers)
8.66k
8.77k (x1.01)
Test#2 (FP)
6.9k
5.82k (x0.84)
Test#3 (Generic, ZIP)
3.48k
3.47k (x1)
Test#1 (Memory)
3.2k
2.98k (x0.93)
TOTAL
22.24k
21.04k (x0.95)
Multithread
G645
X5675
Test#1 (Integers)
14.06k
53.23k (x3.79)
Test#2 (FP)
11.82k
39.35k (x3.33)
Test#3 (Generic, ZIP)
5.83k
27.05k (x4.64)
Test#1 (Memory)
3.69k
5.28k (x1.43)
TOTAL
35.38k
124.92k (x3.53)
Performance/W
G645
X5675
Test#1 (Integers)
216 points/W
560 points/W
Test#2 (FP)
182 points/W
414 points/W
Test#3 (Generic, ZIP)
90 points/W
285 points/W
Test#1 (Memory)
57 points/W
56 points/W
TOTAL
544 points/W
1315 points/W
Performance/GHz
G645
X5675
Test#1 (Integers)
2987 points/GHz
2529 points/GHz
Test#2 (FP)
2380 points/GHz
1679 points/GHz
Test#3 (Generic, ZIP)
1199 points/GHz
1001 points/GHz
Test#1 (Memory)
1103 points/GHz
860 points/GHz
TOTAL
7669 points/GHz
6070 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