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Core i7-930 vs Core 2 Duo T6400


Description
The i7-930 is based on Westmere architecture while the T6400 is based on Core.

Using the multithread performance as a reference, the i7-930 gets a score of 69.4 k points while the T6400 gets 19.1 k points.

Summarizing, the i7-930 is 3.6 times faster than the T6400. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106a5
1067a
Core
Bloomfield
Penryn-3M
Architecture
Base frecuency
2.8 GHz
2 GHz
Boost frecuency
3.067 GHz
2 GHz
Socket
LGA 1366
FC-PGA
Cores/Threads
4/8
2/2
TDP
130 W
35 W
Cache L1 (d+i)
32+32 kB
2x32+2x32 kB
Cache L2
256 kB
2048 kB
Cache L3
8192 kB
0 kB
Date
February 2010
January 2009

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
i7-930
T6400
Test#1 (Integers)
1941
1818 (-6.33%)
Test#2 (FP)
4384
4665 (6.43%)
Test#3 (Generic, ZIP)
2638
1896 (-28.15%)
Test#1 (Memory)
2408
953 (-60.42%)
TOTAL
11371
9332 (-17.93%)

Multithread

i7-930

T6400
Test#1 (Integers)
7305
3316 (-54.61%)
Test#2 (FP)
19361
8751 (-54.80%)
Test#3 (Generic, ZIP)
13429
3465 (-74.20%)
Test#1 (Memory)
2011
988 (-50.86%)
TOTAL
42106
16519 (-60.77%)

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
i7-930
T6400
Test#1 (Integers)
7276
2294 (-68.47%)
Test#2 (FP)
4819
5105 (5.94%)
Test#3 (Generic, ZIP)
2862
2033 (-28.98%)
Test#1 (Memory)
2623
912 (-65.22%)
TOTAL
17580
10344 (-41.16%)

Multithread

i7-930

T6400
Test#1 (Integers)
28092
4475 (-84.07%)
Test#2 (FP)
21624
9781 (-54.77%)
Test#3 (Generic, ZIP)
14826
3875 (-73.87%)
Test#1 (Memory)
4851
946 (-80.50%)
TOTAL
69393
19076 (-72.51%)

Performance/W
i7-930
T6400
Test#1 (Integers)
216 points/W
128 points/W
Test#2 (FP)
166 points/W
279 points/W
Test#3 (Generic, ZIP)
114 points/W
111 points/W
Test#1 (Memory)
37 points/W
27 points/W
TOTAL
534 points/W
545 points/W

Performance/GHz
i7-930
T6400
Test#1 (Integers)
2372 points/GHz
1147 points/GHz
Test#2 (FP)
1571 points/GHz
2553 points/GHz
Test#3 (Generic, ZIP)
933 points/GHz
1016 points/GHz
Test#1 (Memory)
855 points/GHz
456 points/GHz
TOTAL
5732 points/GHz
5172 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. 3.7.8