Intel Mobile Pentium III 500 socket: Socket 495
The Intel Mobile Pentium III 500 uses the Socket 495 socket. It is a 16.8 W single-core Coppermine mobile part at 500 MHz with 256 KB of L2 cache for Socket 495 laptops, with soldered and module twins at the same name.
- Socket
- Socket 495
- Launched
- October 25, 1999
- Cores and threads
- 1 and 1
- Base power
- 16.8 W
- Codename
- Coppermine
- Segment
- Mobile (socketed)
- Family
- Intel Mobile Pentium III
- Clocks
- 0.5 GHz
Intel Mobile Pentium III 500 specifications
| Cores | 1 |
|---|---|
| Threads | 1 |
| Core architecture | Coppermine (P6) |
| Clocks | 500 MHz base, no turbo |
| Cache | 32 KB L1, 256 KB full-speed L2 |
| Processor base power (TDP) | 16.8 W |
| Manufacturing process | 180 nm |
| Memory support | SDRAM through the board chipset |
| Front side bus | 100 MHz |
| Package | Socket 495 (micro-PGA2, 495 pins; BGA and MMC twins also at same name) |
| Multiplier | Locked (5x) |
| Integrated graphics | None |
Motherboard compatibility
Intel Mobile Pentium III 500 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 500 is
The Intel Mobile Pentium III 500 is a 500 MHz single-core mobile processor from October 1999. It runs one P6 Coppermine core at 500 MHz with no turbo and no SpeedStep, 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 16.8 W max in a Socket 495 micro-PGA2 package on a 100 MHz front side bus with a 5x multiplier at 1.6 V.
Micro-BGA2 soldered cards and MMC-2 modules carry the same Mobile 500 name at 500 MHz, which is why three pages share the model line. This page covers the socketed micro-PGA2 package per the socketed-only rule; a 500 MMC module such as Intel Mobile Pentium III 500 MMC has its own page. The chip supports MMX and SSE.
Mid entry mobile clocks with a full cache suit Socket 495 mainstream laptops. The 5x integer ratio is clean for 100 MHz boards. That is why the 500 shipped in mainstream mobile systems.
Socket and motherboard compatibility
The 500 fits Socket 495 mainstream 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 500. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.
Mainstream SDRAM laptops are the natural match. Boards listing the Mobile 500 accept the chip with a 16.8 W pipe.
Memory, PCIe and cooling
Memory is SDRAM through the board chipset, matched to the board slots. The CPU has no memory controller. Mainstream 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 16.8 W.
Upgrade paths
On the same socket, a move to a Mobile Pentium III 600 such as Intel Mobile Pentium III 600 keeps the laptop for 100 MHz more. A Mobile Pentium III 450 such as Intel Mobile Pentium III 450 drops 50 MHz.
A move to SpeedStep models needs battery tables. The Socket 495 page lists the range. Note: the queue row lists 17 W; this page uses the verified 16.8 W max.
Frequently asked questions
What socket does the Mobile Pentium III 500 use?
Socket 495 in a micro-PGA2 package. Soldered and module twins exist at the same name.
What memory does the 500 use?
SDRAM through the board chipset.
What is the upgrade path from the 500?
A Mobile Pentium III 600 for 100 MHz more.
Sources and verification
- List of Intel Pentium III processors Mobile 500 16.8W (Wikipedia)
- Mobile Intel Processor Package Types (Intel)
- Pentium III mobile sockets (Wikipedia)
Facts last checked against these sources on . Page last edited on .