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Core i7-930 vs Xeon E5-4640


Description
The i7-930 is based on Westmere architecture while the E5-4640 is based on Sandy Bridge.

Using the multithread performance as a reference, the i7-930 gets a score of 69.4 k points while the E5-4640 gets 581.6 k points.

Summarizing, the E5-4640 is 8.4 times faster than the i7-930 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106a5
206d7
Core
Bloomfield
Sandy Bridge-EP
Architecture
Base frecuency
2.8 GHz
2.4 GHz
Boost frecuency
3.067 GHz
2.8 GHz
Socket
LGA 1366
LGA 2011
Cores/Threads
4/8
8 /16
TDP
130 W
95 W
Cache L1 (d+i)
32+32 kB
8x32+8x32 kB
Cache L2
256 kB
8x256 kB
Cache L3
8192 kB
20480 kB
Date
February 2010
May 2012
Mean monothread perf.
17.58k points
13.88k points
Mean multithread perf.
69.39k points
610.16k 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
i7-930
E5-4640
Test#1 (Integers)
1.94k
1.66k (x0.86)
Test#2 (FP)
4.38k
5.26k (x1.2)
Test#3 (Generic, ZIP)
2.64k
2.13k (x0.81)
Test#1 (Memory)
2.41k
2.53k (x1.05)
TOTAL
11.37k
11.58k (x1.02)

Multithread

i7-930

E5-4640
Test#1 (Integers)
7.3k
77.64k (x10.63)
Test#2 (FP)
19.36k
212.2k (x10.96)
Test#3 (Generic, ZIP)
13.43k
113.11k (x8.42)
Test#1 (Memory)
2.01k
7.54k (x3.75)
TOTAL
42.11k
410.48k (x9.75)

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
E5-4640
Test#1 (Integers)
7.28k
6.19k (x0.85)
Test#2 (FP)
4.82k
5.89k (x1.22)
Test#3 (Generic, ZIP)
2.86k
2.11k (x0.74)
Test#1 (Memory)
2.62k
2.51k (x0.96)
TOTAL
17.58k
16.7k (x0.95)

Multithread

i7-930

E5-4640
Test#1 (Integers)
28.09k
244.88k (x8.72)
Test#2 (FP)
21.62k
215.35k (x9.96)
Test#3 (Generic, ZIP)
14.83k
114.64k (x7.73)
Test#1 (Memory)
4.85k
6.76k (x1.39)
TOTAL
69.39k
581.63k (x8.38)

Performance/W
i7-930
E5-4640
Test#1 (Integers)
216 points/W
2578 points/W
Test#2 (FP)
166 points/W
2267 points/W
Test#3 (Generic, ZIP)
114 points/W
1207 points/W
Test#1 (Memory)
37 points/W
71 points/W
TOTAL
534 points/W
6122 points/W

Performance/GHz
i7-930
E5-4640
Test#1 (Integers)
2372 points/GHz
2210 points/GHz
Test#2 (FP)
1571 points/GHz
2105 points/GHz
Test#3 (Generic, ZIP)
933 points/GHz
755 points/GHz
Test#1 (Memory)
855 points/GHz
895 points/GHz
TOTAL
5732 points/GHz
5966 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