Pentium G850 vs Xeon E5645
Description
The G850 is based on Sandy Bridge architecture while the E5645 is based on Westmere.
Using the multithread performance as a reference, the G850 gets a score of 40.5 k points while the E5645 gets 77 k points.
Summarizing, the E5645 is 1.9 times faster than the G850 . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the G850 gets a score of 40.5 k points while the E5645 gets 77 k points.
Summarizing, the E5645 is 1.9 times faster than the G850 . 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
2.4 GHz
Boost frecuency
2.9 GHz
2.8 GHz
Socket
LGA 1155
LGA 1366
Cores/Threads
2/2
6 /6
TDP
65 W
80 W
Cache L1 (d+i)
32+32 kB
64 kB
Cache L2
256 kB
256 kB
Cache L3
3072 kB
12288 kB
Date
May 2012
March 2010
Mean monothread perf.
21.85k points
15.64k points
Mean multithread perf.
40.5k points
76.96k 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
G850
E5645
Test#1 (Integers)
8.77k
6.47k (x0.74)
Test#2 (FP)
7.08k
4.4k (x0.62)
Test#3 (Generic, ZIP)
3.72k
2.43k (x0.65)
Test#1 (Memory)
2.28k
2.33k (x1.02)
TOTAL
21.85k
15.64k (x0.72)
Multithread
G850
E5645
Test#1 (Integers)
17.5k
34.43k (x1.97)
Test#2 (FP)
13.48k
24.23k (x1.8)
Test#3 (Generic, ZIP)
7.32k
14.48k (x1.98)
Test#1 (Memory)
2.19k
3.81k (x1.74)
TOTAL
40.5k
76.96k (x1.9)
Performance/W
G850
E5645
Test#1 (Integers)
269 points/W
430 points/W
Test#2 (FP)
207 points/W
303 points/W
Test#3 (Generic, ZIP)
113 points/W
181 points/W
Test#1 (Memory)
34 points/W
48 points/W
TOTAL
623 points/W
962 points/W
Performance/GHz
G850
E5645
Test#1 (Integers)
3025 points/GHz
2311 points/GHz
Test#2 (FP)
2440 points/GHz
1573 points/GHz
Test#3 (Generic, ZIP)
1283 points/GHz
867 points/GHz
Test#1 (Memory)
787 points/GHz
833 points/GHz
TOTAL
7534 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.
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