Lavalys Everest Memory Performance
Website: Lavalys
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DDR2 1,066MHz C5
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G.SKill Pi-Black 4GB 1,015MHz C5
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G.SKill Pi-Black 4GB 800MHz C4
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DDR2 800MHz C5
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
MB/s (higher is better)
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Read (MB/s)
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Write (MB/s)
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Copy (MB/s)
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DDR2 1,066MHz C5
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G.SKill Pi-Black 4GB 1,015MHz C5
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G.SKill Pi-Black 4GB 800MHz C4
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DDR2 800MHz C5
0
10
20
30
40
50
60
70
80
Nanoseconds (lower is better)
The overclocked G.Skill Pi-Blacks nose near the 1,066MHz DDR2 but are only stable up to 1,015MHz on our Gigabyte P45 board. At the same memory timings of 5-5-5-15 the read and copy performance is marginally faster, but the read speed is lower. At its rated performance the Pi-Blacks at CAS-4 are only a little faster than CAS-5 memory and the read performance is largely lower compared to the 1,000+MHz DDR2, of which, the latencies are also a good 16 percent faster.
SiSoft Sandra Lite XII.2008.SP2c (14.24)
Website: SiSoftware
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G.SKill Pi-Black 4GB 1,015MHz C5
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DDR2 1,066MHz C5
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DDR2 800MHz C5
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G.SKill Pi-Black 4GB 800MHz C4
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8480.0
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8255.5
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7677.0
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7650.5
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
MB/s (higher is better)
-
DDR2 1,066MHz C5
-
G.SKill Pi-Black 4GB 1,015MHz C5
-
G.SKill Pi-Black 4GB 800MHz C4
-
DDR2 800MHz C5
0
10
20
30
40
50
60
70
80
90
Nanoseconds (lower is better)
Naturally the Pi-Blacks can quite keep up with the reference DDR2 1,066MHz when overclocked, and CAS-4 only knocks a few nanoseconds of its latency and doesn't do anything for the raw performance here.
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