Core i3 and i5 memory performance

January 27, 2010 | 11:44

Tags: #benchmark #clarkdale #core-i3 #core-i5 #cpu #everest #fsb #performance #result #sisoft

Companies: #intel #test

Lavalys Everest 5.30 Memory Performance

Website: Lavalys

Everest Memory Read Test

  • Core i7 870 (2926MHz) DDR3-1333 Cl9 - GPU
  • Core i5 650 (2926MHz) DDR3-1333 Cl9 - GPU
  • Core i5 650 (2926MHz) DDR3-1333 Cl9 - IGP
  • Phenom II X2 540 (3,000MHz) DDR3-1333 Cl9 - IGP
  • Phenom II X2 540 (3,000MHz) DDR3-1333 Cl9 - GPU
  • Core 2 Duo E8400 (2997MHz) DDR3-1333 Cl9 - GPU
  • Core 2 Duo E8400 (2997MHz) DDR2-800 Cl5 - GPU
  • Core 2 Duo E8400 (2997MHz) DDR2-800 Cl5 - IGP
  • 13405
  • 9402
  • 9196
  • 8253
  • 8226
  • 7845
  • 5579
  • 5553
0
2500
5000
7500
10000
12500
15000
MB/s (higher is better)

Everest Memory Write Test

  • Core i7 870 (2926MHz) DDR3-1333 Cl9 - GPU
  • Core i5 650 (2926MHz) DDR3-1333 Cl9 - GPU
  • Core i5 650 (2926MHz) DDR3-1333 Cl9 - IGP
  • Core 2 Duo E8400 (2997MHz) DDR3-1333 Cl9 - GPU
  • Core 2 Duo E8400 (2997MHz) DDR2-800 Cl5 - IGP
  • Core 2 Duo E8400 (2997MHz) DDR2-800 Cl5 - GPU
  • Phenom II X2 540 (3,000MHz) DDR3-1333 Cl9 - IGP
  • Phenom II X2 540 (3,000MHz) DDR3-1333 Cl9 - GPU
  • 10669
  • 7340
  • 7262
  • 7096
  • 7076
  • 7075
  • 6713
  • 6695
0
2500
5000
7500
10000
MB/s (higher is better)

Everest Memory Copy Test

  • Core i7 870 (2926MHz) DDR3-1333 Cl9 - GPU
  • Phenom II X2 540 (3,000MHz) DDR3-1333 Cl9 - GPU
  • Phenom II X2 540 (3,000MHz) DDR3-1333 Cl9 - IGP
  • Core i5 650 (2926MHz) DDR3-1333 Cl9 - GPU
  • Core i5 650 (2926MHz) DDR3-1333 Cl9 - IGP
  • Core 2 Duo E8400 (2997MHz) DDR3-1333 Cl9 - GPU
  • Core 2 Duo E8400 (2997MHz) DDR2-800 Cl5 - GPU
  • Core 2 Duo E8400 (2997MHz) DDR2-800 Cl5 - IGP
  • 14600
  • 9750
  • 9654
  • 9018
  • 9011
  • 7330
  • 5080
  • 5067
0
2500
5000
7500
10000
12500
15000
MB/s (higher is better)

Everest Memory Latency Test

  • Core i7 870 (2926MHz) DDR3-1333 Cl9 - GPU
  • Phenom II X2 540 (3,000MHz) DDR3-1333 Cl9 - GPU
  • Phenom II X2 540 (3,000MHz) DDR3-1333 Cl9 - IGP
  • Core 2 Duo E8400 (2997MHz) DDR3-1333 Cl9 - GPU
  • Core i5 650 (2926MHz) DDR3-1333 Cl9 - GPU
  • Core i5 650 (2926MHz) DDR3-1333 Cl9 - IGP
  • Core 2 Duo E8400 (2997MHz) DDR2-800 Cl5 - GPU
  • Core 2 Duo E8400 (2997MHz) DDR2-800 Cl5 - IGP
  • 53.2
  • 55.7
  • 56.0
  • 69.4
  • 80.3
  • 83.4
  • 98.9
  • 99.3
0
25
50
75
100
nanoseconds (lower is better)

The Everest benchmark is single-threaded, so the extra cores of the Lynnfield CPU won't help it. Regardless though, it puts a massive gap between itself and the newer Clarkdale CPUs - whether reading, writing or copying.

Compared to the previous generation LGA775 system, there's a notable jump in read and copy performance when you compare the identical DDR3-1333 setups, but write performance remains the same. Clearly the limiting factor here again is not the memory infrastructure - since DDR2-800 also commands the same result - so there is space for more commands fired from the CPU.

In terms of memory latency, we have the same result as Sisoft Sandra: the Clarkdale CPU is the slowest one to access DDR3, with the AMD AM3 socket and older X48 generation of Intel hardware offering more efficient access.
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