Intel's Pentium Extreme Edition 955: 65nm, 4 threads and 376M transistors
by Anand Lal Shimpi on December 30, 2005 11:36 AM EST- Posted in
- CPUs
Power Consumption and The Test
When we went to go measure power consumption on our Pentium EE 955 platform, we were met with some extremely troubling results. Not only did we not see the power consumption figures that we originally saw with Presler and Cedar Mill a couple of months back, but power consumption was actually higher at 65nm than it was at 90nm. We contacted Intel and were assured that the problem had to do with an issue with our motherboard and a new motherboard is en-route to us now. When we do receive the new motherboard, we will take a look at power consumption once more to get an idea of the final state of Intel's 65nm power consumption, but until then, we don't want to draw any conclusions based on what we've seen.
The Test
When we went to go measure power consumption on our Pentium EE 955 platform, we were met with some extremely troubling results. Not only did we not see the power consumption figures that we originally saw with Presler and Cedar Mill a couple of months back, but power consumption was actually higher at 65nm than it was at 90nm. We contacted Intel and were assured that the problem had to do with an issue with our motherboard and a new motherboard is en-route to us now. When we do receive the new motherboard, we will take a look at power consumption once more to get an idea of the final state of Intel's 65nm power consumption, but until then, we don't want to draw any conclusions based on what we've seen.
The Test
| CPU: | AMD Athlon 64 X2 4800+ (2.4GHz/1MBx2) AMD Athlon 64 X2 3800+ (2.0GHz/512KBx2) AMD Athlon 64 FX-57 (2.8GHz/1MB) Intel Pentium Extreme Edition 955 (3.46GHz/2MBx2) Intel Pentium Extreme Edition 840 (3.2GHz/1MBx2) Intel Pentium D 820 (2.8GHz/1MBx2) |
| Motherboard: | ASUS A8N-SLI Deluxe Intel BadAxe 975X |
| Motherboard BIOS: | ASUS: Version 1013 Dated 08/10/2005 |
| Chipset: | NVIDIA nForce4 SLI Intel 975X |
| Chipset Drivers: | nForce4 6.70 Intel 7.0.0.1020 |
| Memory: | OCZ PC3500 DDR 2-2-2-7 DDR2-667 5-5-5-15 |
| Video Card: | ATI Radeon X1800 XT |
| Video Drivers: | ATI Catalyst 5.13 |
| Desktop Resolution: | 1280 x 1024 - 32-bit @ 60Hz |
| OS: | Windows XP Professional SP2 |
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Betwon - Friday, December 30, 2005 - link
edit:Why is it slower the latency of the memory? 101ns is much more than 5x ns. where is the 'on-die' communication? Your test program is wrong?
Viditor - Friday, December 30, 2005 - link
Thanks Anand!I don't know if you'll have time, but one of the things lacking in all of the other reviews of the OC XE955 is a comparison to an OC X2 4800...
Speculation is quite rife, and it would be a good comparison IMNSHO.
Cheers!
Gigahertz19 - Friday, December 30, 2005 - link
Intel's back...back again...backkkkkkk again..backkkkkkkk again...du dah duh dayacoub - Tuesday, January 3, 2006 - link
If by "back" you mean finally (barely) able to compete with existing AMD performance, then yes. ;P