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Core 2 Duo T5800 vs Core i7-920


Description
The T5800 is based on Core architecture while the i7-920 is based on Nehalem Westmere.

Using the multithread performance as a reference, the T5800 gets a score of 12.9 k points while the i7-920 gets 47.2 k points.

Summarizing, the i7-920 is 3.7 times faster than the T5800. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
6fd
106a5
Core
Meron
Bloomfield
Architecture
Core
Base frecuency
2 GHz
2.667 GHz
Boost frecuency
2 GHz
2.993 GHz
Socket
PGA 478
LGA 1366
Cores/Threads
2/2
4/8
TDP
35 W
130 W
Cache L1 (d+i)
2x32+2x32 kB
32+32 kB
Cache L2
2048 kB
256 kB
Cache L3
0 kB
8192 kB
Date
October 2008
November 2008
Mean monothread perf.
7.37k points
16.33k points
Mean multithread perf.
12.91k points
47.2k 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
T5800
i7-920
Test#1 (Integers)
1.97k
1.97k (x1)
Test#2 (FP)
1.98k
4.43k (x2.24)
Test#3 (Generic, ZIP)
1.9k
2.75k (x1.45)
Test#1 (Memory)
1.1k
2.53k (x2.31)
TOTAL
6.95k
11.68k (x1.68)

Multithread

T5800

i7-920
Test#1 (Integers)
3.71k
7.71k (x2.08)
Test#2 (FP)
3.71k
18.81k (x5.07)
Test#3 (Generic, ZIP)
3.53k
13.76k (x3.89)
Test#1 (Memory)
1.24k
5.07k (x4.07)
TOTAL
12.2k
45.34k (x3.72)

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
T5800
i7-920
Test#1 (Integers)
2.29k
6.12k (x2.67)
Test#2 (FP)
2.05k
4.76k (x2.33)
Test#3 (Generic, ZIP)
1.96k
2.78k (x1.42)
Test#1 (Memory)
1.07k
2.67k (x2.48)
TOTAL
7.37k
16.33k (x2.22)

Multithread

T5800

i7-920
Test#1 (Integers)
4.28k
19.26k (x4.5)
Test#2 (FP)
3.8k
14.96k (x3.94)
Test#3 (Generic, ZIP)
3.59k
8.05k (x2.24)
Test#1 (Memory)
1.23k
4.92k (x3.99)
TOTAL
12.91k
47.2k (x3.66)

Performance/W
T5800
i7-920
Test#1 (Integers)
122 points/W
148 points/W
Test#2 (FP)
108 points/W
115 points/W
Test#3 (Generic, ZIP)
103 points/W
62 points/W
Test#1 (Memory)
35 points/W
38 points/W
TOTAL
369 points/W
363 points/W

Performance/GHz
T5800
i7-920
Test#1 (Integers)
1145 points/GHz
2044 points/GHz
Test#2 (FP)
1023 points/GHz
1591 points/GHz
Test#3 (Generic, ZIP)
980 points/GHz
930 points/GHz
Test#1 (Memory)
537 points/GHz
891 points/GHz
TOTAL
3684 points/GHz
5457 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