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E5200 vs Pentium D 935

post #1 of 21
Thread Starter 
I have a C2D E5200, and when running SuperPi on the 4M setting, it gets a consistent time of 4 minutes and 6 seconds. Yet, when I swap out the processor on the same board for a PD 935 and run the 4M SuperPi, I get a time of 4 minutes and 3 seconds. What gives!? Why is this Pentium D outdoing a newer generation processor???? I thought C2D's smoked any Pentium D, but this shows otherwise. Any ideas as to what's going on, or if it is something I can set straight?
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post #2 of 21
Thread Starter 
I believe I know why: I looked at intel's website and the e5200 only has 2MB of cache memory, compared to the 935's 4MB of cache. In essence, I have come to the conclusion that the e5200 is in fact worse than the 935 in all aspects other than its heat output, where the e5200 is much more efficient and cool than the Pentium D.
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post #3 of 21

Well Pentium does also clock higher. Just curious why you crunching the old hard tech? Doing some OCing and benching?

post #4 of 21
What? The E5200 is miles faster than a Pentium D 935, e5200 at 2689 vs 935 at 2028 according to geekbench http://www.primatelabs.ca/geekbench/pc-benchmarks/

Pent D: 892 vs e5200: 1663 http://www.cpubenchmark.net/mid_range_cpus.html
post #5 of 21
Thread Starter 
Quote:
Originally Posted by animal0307 View Post

Well Pentium does also clock higher. Just curious why you crunching the old hard tech? Doing some OCing and benching?

I got an old computer from a friend, a Compaq, and it had a Pentium D 935 in it. I just found an e5200, and put it in, and two things caught my attention. First, during POST, it said that the processor was 2.5GHz, but set in the BIOS to run at 2.4GHz. possibly an FSB issue? Secondly, when I tested it in Windows, the experience index rated it 3.9 compared to the 935's 4.7, the superpi times I wrote about above showed it was slower, and everything seemed to take longer to load. I'm looking for the most power possible to run a couple of servers off this old computer, and just want the best performance possible. The motherboard is an alhena5 OEM mobo, so there are no voltage, clock, FSB, or multiplier settings.
Quote:
Originally Posted by XAslanX View Post

What? The E5200 is miles faster than a Pentium D 935, e5200 at 2689 vs 935 at 2028 according to geekbench http://www.primatelabs.ca/geekbench/pc-benchmarks/
Pent D: 892 vs e5200: 1663 http://www.cpubenchmark.net/mid_range_cpus.html
Interesting, because I saw this myself earlier while researching. But, this doesn't take in to account the smaller cache, does it? and doesn't the cache matter more in real world applications? If it does seem to score 600 points higher, then why does it return slower marks in all of the tests I am trying???
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post #6 of 21
Dude, core 2 is way better and newer architecture than Pentium D which is 2 Pentium 4's slapped together.
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post #7 of 21
Quote:
Originally Posted by kubed_zero View Post

I got an old computer from a friend, a Compaq, and it had a Pentium D 935 in it. I just found an e5200, and put it in, and two things caught my attention. First, during POST, it said that the processor was 2.5GHz, but set in the BIOS to run at 2.4GHz. possibly an FSB issue? Secondly, when I tested it in Windows, the experience index rated it 3.9 compared to the 935's 4.7, the superpi times I wrote about above showed it was slower, and everything seemed to take longer to load. I'm looking for the most power possible to run a couple of servers off this old computer, and just want the best performance possible. The motherboard is an alhena5 OEM mobo, so there are no voltage, clock, FSB, or multiplier settings.
Interesting, because I saw this myself earlier while researching. But, this doesn't take in to account the smaller cache, does it? and doesn't the cache matter more in real world applications? If it does seem to score 600 points higher, then why does it return slower marks in all of the tests I am trying???

Overclock them both, apparently the E5200 flies overclocked @ 4GHz.. Just like it's big brothers, the E8500's and the like.

But for what you want, you may be better off getting a slow quad core Q8400, E8400/E8500 or maybe even a Q6600 and overclock them a bit.

Those sell for around roughly $80 a piece, not too much to put into an old machine.
 
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post #8 of 21
Quote:
Originally Posted by kubed_zero View Post


I got an old computer from a friend, a Compaq, and it had a Pentium D 935 in it. I just found an e5200, and put it in, and two things caught my attention. First, during POST, it said that the processor was 2.5GHz, but set in the BIOS to run at 2.4GHz. possibly an FSB issue? Secondly, when I tested it in Windows, the experience index rated it 3.9 compared to the 935's 4.7, the superpi times I wrote about above showed it was slower, and everything seemed to take longer to load. I'm looking for the most power possible to run a couple of servers off this old computer, and just want the best performance possible. The motherboard is an alhena5 OEM mobo, so there are no voltage, clock, FSB, or multiplier settings.

Is that board even capable of running a C2D?


 

Quote:
Originally Posted by Matt-Matt View Post


Overclock them both, apparently the E5200 flies overclocked @ 4GHz.. Just like it's big brothers, the E8500's and the like.
But for what you want, you may be better off getting a slow quad core Q8400, E8400/E8500 or maybe even a Q6600 and overclock them a bit.
Those sell for around roughly $80 a piece, not too much to put into an old machine.


 

I find OEM boards are craptastic for anything that isn't stock or factory installed.

post #9 of 21
I'm not sure what's up with those results or whatnot, but the Pentium Dual-core E5200 is the far better CPU.

It's greater power savings, even if there's something "wrong" and it's performing around par with the Pentium D, still make it a better choice for a server.

You can't just look at cache numbers when comparing different architectures. A Pentium 4 Prescott has 1MB L2 cache versus the Pentium 4 Northwood with 512k cache, and yet the former is a little slower clock for clock (generally) than the latter.

I replaced my parent's HP PC CPU, a Pentium 4 641 (3.2GHz, 2M cache, single core w/ Hyper-threading), with a Pentium Dual-core E2160 (1.8GHz, 1M cache, dual core), and the latter was far, far better. They get a BIOS error about an "unsupported CPU", but hitting any key passes on and it operates fine, and I flashed the BIOS to one that says it supports that CPU, so...*shrugs*
post #10 of 21
Quote:
Originally Posted by Princess Garnet View Post

I'm not sure what's up with those results or whatnot, but the Pentium Dual-core E5200 is the far better CPU.
It's greater power savings, even if there's something "wrong" and it's performing around par with the Pentium D, still make it a better choice for a server.
You can't just look at cache numbers when comparing different architectures. A Pentium 4 Prescott has 1MB L2 cache versus the Pentium 4 Northwood with 512k cache, and yet the former is a little slower clock for clock (generally) than the latter.
I replaced my parent's PC CPU which had a Pentium 4 641 (3.2GHz, 2M cache, Hyper-threading) with a Pentium Dual-core E2160 (1.8GHz, 1M cache), and the latter was far, far better.

You can't compare them like that no, but you'd still think the E5200 was better...
There either has to be something wrong with the benchmark or it's biased somehow. Maybe try them both at the same clocks?

Ah right, i didn't read that it was an OEM board, that's probably why it performs so slow! tongue.gif
 
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