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Why i7-2620M sucks so badly compared to 2670QM
- Thread starter Lop3
- Start date
http://ark.intel.com/products/52231/Intel-Core-i7-2620M-Processor-4M-Cache-up-to-3_40-GHz
http://ark.intel.com/products/53469/Intel-Core-i7-2670QM-Processor-6M-Cache-up-to-3_10-GHz
Something seems amiss with the first run outside of what I linked above...
http://ark.intel.com/products/53469/Intel-Core-i7-2670QM-Processor-6M-Cache-up-to-3_10-GHz
Something seems amiss with the first run outside of what I linked above...
The only real difference will be 2 cores vs 4 cores. Results in memtest are almost always wrong so don't look at them. In other tests difference should be correct including number of supported threads and CPU frequency.
In tests which base on number of threads, 4 core CPU will have ~50-100% higher performance while in single threaded tests 2 core CPU ( which has higher frequency ) will be slightly faster. It also includes memory bandwidth benchmarks.
In tests which base on number of threads, 4 core CPU will have ~50-100% higher performance while in single threaded tests 2 core CPU ( which has higher frequency ) will be slightly faster. It also includes memory bandwidth benchmarks.
- Thread Starter
- #6
So I went looking around in the BIOS of the slow CPU to see what could have been causing the slowdown.
I found some options relating to some security chip in my laptop. When I disabled it, the L1 cache benchmark went up to over 27000MB/s
And the DDR3 memory went up to over 10000MB/s so it's pretty much what I'd expect now?
I found some options relating to some security chip in my laptop. When I disabled it, the L1 cache benchmark went up to over 27000MB/s
And the DDR3 memory went up to over 10000MB/s so it's pretty much what I'd expect now?
- Joined
- Jun 6, 2002
im still lost as to what you think the "issue" is here.... sissoft sandra is a good bench to compare different cpus or even the same one. as what you posted both are two different models as already pointed out. i think your making an issue out of nothing here but thats just me.
- Thread Starter
- #8
So I went looking around in the BIOS of the slow CPU to see what could have been causing the slowdown.
I found some options relating to some security chip in my laptop. When I disabled it, the L1 cache benchmark went up to over 27000MB/s
And the DDR3 memory went up to over 10000MB/s so it's pretty much what I'd expect now?
I found some options relating to some security chip in my laptop. When I disabled it, the L1 cache benchmark went up to over 27000MB/s
And the DDR3 memory went up to over 10000MB/s so it's pretty much what I'd expect now?
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