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Core i7-870 vs Core 2 Duo T7250


Description
The i7-870 is based on Nehalem architecture while the T7250 is based on Core.

Using the multithread performance as a reference, the i7-870 gets a score of 42.5 k points while the T7250 gets 13.8 k points.

Summarizing, the i7-870 is 3.1 times faster than the T7250 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106e5
6fd
Core
Lynnfield
Merom
Architecture
Base frecuency
2.933 GHz
2 GHz
Boost frecuency
3.6 GHz
2 GHz
Socket
LGA 1156
Socket P
Cores/Threads
4/8
2/2
TDP
95 W
35 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2048 kB
Cache L3
8192 kB
0 kB
Date
September 2009
September 2007
Mean monothread perf.
15.44k points
7.57k points
Mean multithread perf.
42.53k points
13.82k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i7-870
T7250
Test#1 (Integers)
1.98k
1.96k (x0.99)
Test#2 (FP)
4.36k
2k (x0.46)
Test#3 (Generic, ZIP)
2.24k
1.96k (x0.88)
Test#1 (Memory)
2.72k
1.22k (x0.45)
TOTAL
11.3k
7.14k (x0.63)

Multithread

i7-870

T7250
Test#1 (Integers)
4.46k
3.87k (x0.87)
Test#2 (FP)
13.95k
3.95k (x0.28)
Test#3 (Generic, ZIP)
7.54k
3.8k (x0.5)
Test#1 (Memory)
1.7k
1.34k (x0.79)
TOTAL
27.65k
12.96k (x0.47)

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
i7-870
T7250
Test#1 (Integers)
5.86k
2.27k (x0.39)
Test#2 (FP)
4.53k
2.07k (x0.46)
Test#3 (Generic, ZIP)
2.36k
2.01k (x0.85)
Test#1 (Memory)
2.69k
1.22k (x0.45)
TOTAL
15.44k
7.57k (x0.49)

Multithread

i7-870

T7250
Test#1 (Integers)
17.53k
4.51k (x0.26)
Test#2 (FP)
13.65k
4.09k (x0.3)
Test#3 (Generic, ZIP)
7.93k
3.9k (x0.49)
Test#1 (Memory)
3.41k
1.32k (x0.39)
TOTAL
42.53k
13.82k (x0.32)

Performance/W
i7-870
T7250
Test#1 (Integers)
185 points/W
129 points/W
Test#2 (FP)
144 points/W
117 points/W
Test#3 (Generic, ZIP)
83 points/W
111 points/W
Test#1 (Memory)
36 points/W
38 points/W
TOTAL
448 points/W
395 points/W

Performance/GHz
i7-870
T7250
Test#1 (Integers)
1629 points/GHz
1135 points/GHz
Test#2 (FP)
1257 points/GHz
1036 points/GHz
Test#3 (Generic, ZIP)
655 points/GHz
1005 points/GHz
Test#1 (Memory)
748 points/GHz
611 points/GHz
TOTAL
4289 points/GHz
3787 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