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Pentium G645 vs Pentium Dual-Core T4500


Description
The G645 is based on Sandy Bridge architecture while the T4500 is based on Core.

Using the multithread performance as a reference, the G645 gets a score of 35.4 k points while the T4500 gets 22.7 k points.

Summarizing, the G645 is 1.6 times faster than the T4500. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206a7
1067a
Core
Sandy Bridge
Penryn-3M
Architecture
Base frecuency
2.9 GHz
2.3 GHz
Socket
LGA 1155
Socket P
Cores/Threads
2/2
2/2
TDP
65 W
35 W
Cache L1 (d+i)
2x32+2x32 kB
32+32 kB
Cache L2
2x256 kB
1024 kB
Cache L3
3072 kB
0 kB
Date
September 2012
January 2010
Mean monothread perf.
22.24k points
12.06k points
Mean multithread perf.
35.38k points
22.71k 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
T4500
Test#1 (Integers)
8.66k
2.64k (x0.3)
Test#2 (FP)
6.9k
5.88k (x0.85)
Test#3 (Generic, ZIP)
3.48k
2.36k (x0.68)
Test#1 (Memory)
3.2k
1.19k (x0.37)
TOTAL
22.24k
12.06k (x0.54)

Multithread

G645

T4500
Test#1 (Integers)
14.06k
5.21k (x0.37)
Test#2 (FP)
11.82k
11.52k (x0.97)
Test#3 (Generic, ZIP)
5.83k
4.65k (x0.8)
Test#1 (Memory)
3.69k
1.33k (x0.36)
TOTAL
35.38k
22.71k (x0.64)

Performance/W
G645
T4500
Test#1 (Integers)
216 points/W
149 points/W
Test#2 (FP)
182 points/W
329 points/W
Test#3 (Generic, ZIP)
90 points/W
133 points/W
Test#1 (Memory)
57 points/W
38 points/W
TOTAL
544 points/W
649 points/W

Performance/GHz
G645
T4500
Test#1 (Integers)
2987 points/GHz
1147 points/GHz
Test#2 (FP)
2380 points/GHz
2555 points/GHz
Test#3 (Generic, ZIP)
1199 points/GHz
1026 points/GHz
Test#1 (Memory)
1103 points/GHz
517 points/GHz
TOTAL
7669 points/GHz
5245 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