Intel Mobile Pentium III 800 socket: Socket 495
The Intel Mobile Pentium III 800 uses the Socket 495 socket. It is a 25.9 W single-core Coppermine mobile part at 800 MHz with 256 KB of L2 cache for Socket 495 performance laptops.
- Socket
- Socket 495
- Launched
- September 25, 2000
- Cores and threads
- 1 and 1
- Base power
- 25.9 W
- Codename
- Coppermine
- Segment
- Mobile (socketed)
- Family
- Intel Mobile Pentium III
- Clocks
- 0.8 GHz
Intel Mobile Pentium III 800 specifications
| Cores | 1 |
|---|---|
| Threads | 1 |
| Core architecture | Coppermine (P6) |
| Clocks | 800 MHz base, no turbo |
| Cache | 32 KB L1, 256 KB full-speed L2 |
| Processor base power (TDP) | 25.9 W |
| Manufacturing process | 180 nm |
| Memory support | SDRAM through the board chipset |
| Front side bus | 100 MHz |
| Package | Socket 495 (micro-PGA2, 495 pins) |
| Multiplier | Locked (8x) |
| Integrated graphics | None |
Motherboard compatibility
Intel Mobile Pentium III 800 needs a motherboard with a Socket 495 socket. Chipset by chipset data for this codename is not recorded yet. See the Socket 495 chipset list and the board maker's CPU support list.
Socket 495 at a glance
| Type | PGA, 495 contacts |
|---|---|
| Package size | n/a |
| Introduced | October 1999 |
| Memory | SDRAM through the board chipset |
| Cooler mounting holes | Board specific (vendor heat pipe) |
What the Mobile Pentium III 800 is
The Intel Mobile Pentium III 800 is an 800 MHz single-core mobile processor from September 2000. It runs one P6 Coppermine core at 800 MHz with no turbo, so 1 core gives 1 thread. Cache is 256 KB of full-speed L2 with 32 KB of L1 on a 180 nm process. Power is rated at 25.9 W max in a Socket 495 micro-PGA2 package on a 100 MHz front side bus with an 8x multiplier at 1.6 V high and 1.35 V battery mode.
A clean 8x integer ratio gives the 800 steady timing on mobile boards, which is why it became a common performance pick. Intel sold the Mobile 800 in September 2000. The chip supports MMX, SSE and SpeedStep. A soldered BGA2 counterpart exists; this page covers the socketed package per the socketed-only rule.
Upper mobile clocks with a full cache suit Socket 495 performance laptops with SDRAM. That is why the 800 shipped in desktop-replacement laptops.
Socket and motherboard compatibility
The 800 fits Socket 495 performance laptops with Coppermine support. It needs a 495-pin micro-PGA2 board with a 100 MHz bus and a BIOS that lists Mobile Pentium III 800. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.
Performance SDRAM laptops are the natural match. Boards listing the Mobile 800 accept the chip with a 25.9 W pipe.
Memory, PCIe and cooling
Memory is SDRAM through the board chipset, matched to the board slots. The CPU has no memory controller. Performance boards commonly run PC100 pairs.
A 100 MHz front side bus ties the CPU to the chipset, while AGP and PCI hang off the chipset. No PCIe lanes originate on the die. Cooling uses the laptop heat pipe for the exact chassis, rated for 25.9 W.
Upgrade paths
On the same socket, a move to a Mobile Pentium III 850 such as Intel Mobile Pentium III 850 keeps the laptop for 50 MHz more. A Mobile Pentium III 750 such as Intel Mobile Pentium III 750 drops 50 MHz.
A move to Pentium III-M needs 512 KB cache support. The Socket 495 page lists the range. Note: the queue row lists 17 W typical; this page uses the verified 25.9 W max.
Frequently asked questions
What socket does the Mobile Pentium III 800 use?
Socket 495. It is a 25.9 W Coppermine mobile part at 800 MHz.
What memory does the 800 use?
SDRAM through the board chipset.
What is the upgrade path from the 800?
A Mobile Pentium III 850 for 50 MHz more.
Sources and verification
- Intel Mobile Pentium III types 800 25.9W ThinkWiki
- List of Intel Pentium III processors Mobile (Wikipedia)
- Mobile Intel Processor Package Types (Intel)
Facts last checked against these sources on . Page last edited on .