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Core i7-870 vs i5-3317U


Description
The i7-870 is based on Nehalem architecture while the i5-3317U is based on Ivy Bridge.

Using the multithread performance as a reference, the i7-870 gets a score of 67.1 k points while the i5-3317U gets 45.2 k points.

Summarizing, the i7-870 is 1.5 times faster than the i5-3317U . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106e5
306a9
Core
Lynnfield
Ivy Bridge
Architecture
Base frecuency
2.933 GHz
1.7 GHz
Boost frecuency
3.6 GHz
2.6 GHz
Socket
LGA 1156
BGA1023
Cores/Threads
4/8
2 /2
TDP
95 W
17 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
8192 kB
3072 kB
Date
September 2009
June 2012
Mean monothread perf.
18.13k points
17.88k points
Mean multithread perf.
67.13k points
41.31k 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
i5-3317U
Test#1 (Integers)
1.98k
2.5k (x1.26)
Test#2 (FP)
4.36k
7.18k (x1.65)
Test#3 (Generic, ZIP)
2.24k
3.19k (x1.42)
Test#1 (Memory)
2.72k
3.41k (x1.25)
TOTAL
11.3k
16.27k (x1.44)

Multithread

i7-870

i5-3317U
Test#1 (Integers)
4.46k
4.93k (x1.11)
Test#2 (FP)
13.95k
15.72k (x1.13)
Test#3 (Generic, ZIP)
7.54k
7.53k (x1)
Test#1 (Memory)
1.7k
4.21k (x2.48)
TOTAL
27.65k
32.39k (x1.17)

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
i5-3317U
Test#1 (Integers)
7.43k
8.38k (x1.13)
Test#2 (FP)
4.96k
7.76k (x1.56)
Test#3 (Generic, ZIP)
2.7k
3.33k (x1.23)
Test#1 (Memory)
3.04k
3.41k (x1.12)
TOTAL
18.13k
22.88k (x1.26)

Multithread

i7-870

i5-3317U
Test#1 (Integers)
27.58k
16.56k (x0.6)
Test#2 (FP)
21.84k
16.79k (x0.77)
Test#3 (Generic, ZIP)
13.55k
7.85k (x0.58)
Test#1 (Memory)
4.16k
4.02k (x0.97)
TOTAL
67.13k
45.23k (x0.67)

Performance/W
i7-870
i5-3317U
Test#1 (Integers)
290 points/W
974 points/W
Test#2 (FP)
230 points/W
988 points/W
Test#3 (Generic, ZIP)
143 points/W
462 points/W
Test#1 (Memory)
44 points/W
237 points/W
TOTAL
707 points/W
2660 points/W

Performance/GHz
i7-870
i5-3317U
Test#1 (Integers)
2063 points/GHz
3225 points/GHz
Test#2 (FP)
1379 points/GHz
2984 points/GHz
Test#3 (Generic, ZIP)
750 points/GHz
1281 points/GHz
Test#1 (Memory)
845 points/GHz
1311 points/GHz
TOTAL
5037 points/GHz
8801 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