20111215, 15:10  #1 
Basketry That Evening!
"Bunslow the Bold"
Jun 2011
40<A<43 89<O<88
3·29·83 Posts 
P1 Memory?
Just wanna get this straight:
Which is better for P1 throughput or effectiveness? 8GB DDR3 1600 or 16GB DDR3 1333? Or would an extra $50 for 8GB 1600 vs. 8GB 1333 make a difference? Last fiddled with by Dubslow on 20111215 at 15:17 
20111215, 15:49  #2  
Banned
"Luigi"
Aug 2002
Team Italia
4792_{10} Posts 
Quote:
If, instead, with throughput you intended speed of the test, I would opt for 8GB DDR3 1600. Luigi 

20111215, 17:41  #3 
Basketry That Evening!
"Bunslow the Bold"
Jun 2011
40<A<43 89<O<88
3×29×83 Posts 
Well that's what I mean, throughput is open to whatever interpretation helps GIMPS. How much a speedup would the extra frequency get versus the extra 8GB? Would the extra probability on 16 GB be worth more than spedup 8 GB with extra bandwidth?

20111215, 18:40  #4  
Banned
"Luigi"
Aug 2002
Team Italia
2^{3}×599 Posts 
Quote:
Luigi 

20111215, 18:48  #5 
"Forget I exist"
Jul 2009
Dumbassville
2^{6}×131 Posts 
((8GB DDR3 1600 or 16GB DDR3 1333?) == (8GB DDR3 1600 or 2*8GB DDR3 1333?) == (8GB DDR3 1600 or 8GB DDR3 2666?)) ?

20111215, 20:27  #6 
Basketry That Evening!
"Bunslow the Bold"
Jun 2011
40<A<43 89<O<88
3·29·83 Posts 
What? When have I ever mentioned 2666? Is there even such a specification?

20111215, 20:43  #7 
Oct 2011
Maryland
2·5·29 Posts 

20111215, 20:50  #8 
"Forget I exist"
Jul 2009
Dumbassville
8384_{10} Posts 

20111215, 20:56  #9 
Mar 2006
Germany
5462_{8} Posts 

20111215, 21:06  #10 
"Mike"
Aug 2002
1111100001000_{2} Posts 
Code:
64MiB [Work thread Dec 15 14:54] Optimal P1 factoring of M50323751 using up to 64MB of memory. [Work thread Dec 15 14:54] Optimal bounds are B1=585000, B2=585000 [Work thread Dec 15 14:54] Chance of finding a factor is an estimated 1.94% 128MiB [Work thread Dec 15 14:55] Optimal P1 factoring of M50323751 using up to 128MB of memory. [Work thread Dec 15 14:55] Optimal bounds are B1=400000, B2=2600000 [Work thread Dec 15 14:55] Chance of finding a factor is an estimated 2.89% 256MiB [Work thread Dec 15 14:56] Optimal P1 factoring of M50323751 using up to 256MB of memory. [Work thread Dec 15 14:56] Optimal bounds are B1=460000, B2=5865000 [Work thread Dec 15 14:56] Chance of finding a factor is an estimated 3.5% 512MiB [Work thread Dec 15 14:57] Optimal P1 factoring of M50323751 using up to 512MB of memory. [Work thread Dec 15 14:57] Optimal bounds are B1=475000, B2=8312500 [Work thread Dec 15 14:57] Chance of finding a factor is an estimated 3.76% 1024MiB [Work thread Dec 15 14:58] Optimal P1 factoring of M50323751 using up to 1024MB of memory. [Work thread Dec 15 14:58] Optimal bounds are B1=490000, B2=9187500 [Work thread Dec 15 14:58] Chance of finding a factor is an estimated 3.85% 2048MiB [Work thread Dec 15 14:59] Optimal P1 factoring of M50323751 using up to 2048MB of memory. [Work thread Dec 15 14:59] Optimal bounds are B1=485000, B2=9578750 [Work thread Dec 15 14:59] Chance of finding a factor is an estimated 3.87% 4096MiB [Work thread Dec 15 15:00] Optimal P1 factoring of M50323751 using up to 4096MB of memory. [Work thread Dec 15 15:00] Optimal bounds are B1=490000, B2=9800000 [Work thread Dec 15 15:00] Chance of finding a factor is an estimated 3.89% 8192MiB [Work thread Dec 15 15:01] Optimal P1 factoring of M50323751 using up to 8192MB of memory. [Work thread Dec 15 15:01] Optimal bounds are B1=490000, B2=9922500 [Work thread Dec 15 15:01] Chance of finding a factor is an estimated 3.9% 16384MiB [Work thread Dec 15 15:02] Optimal P1 factoring of M50323751 using up to 16384MB of memory. [Work thread Dec 15 15:02] Optimal bounds are B1=490000, B2=9922500 [Work thread Dec 15 15:02] Chance of finding a factor is an estimated 3.9% 
20111215, 21:30  #11 
Feb 2004
10100000_{2} Posts 

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