AMD K6-2+ 450ACZM socket: Super Socket 7
The AMD K6-2+ 450ACZM uses the Super Socket 7 socket. It is a 13 W single-core Sharptooth desktop part at 450 MHz with 128 KB of full-speed L2 cache for mobile-tuned Super Socket 7 boards.
- Socket
- Super Socket 7
- Launched
- April 2000
- Cores and threads
- 1 and 1
- Default TDP
- 13 W
- Codename
- Sharptooth
- Segment
- Desktop
- Family
- AMD K6-2+
- Clocks
- 0.45 GHz
AMD K6-2+ 450ACZM specifications
| Cores | 1 |
|---|---|
| Threads | 1 |
| Core architecture | Sharptooth (K6-2+) |
| Clocks | 450 MHz base, no turbo |
| Cache | 64 KB L1, 128 KB full-speed L2 |
| Default TDP | 13 W |
| Manufacturing process | 180 nm |
| Memory support | EDO DRAM and SDRAM through the board chipset |
| Front side bus | 100 MHz |
| Package | Super Socket 7 (CPGA, 321 contacts) |
| Multiplier | Locked (4.5x) |
| Integrated graphics | None |
Motherboard compatibility
AMD K6-2+ 450ACZM needs a motherboard with a Super Socket 7 socket. Chipset by chipset data for this codename is not recorded yet. See the Super Socket 7 chipset list and the board maker's CPU support list.
Super Socket 7 at a glance
| Type | PGA, 321 contacts |
|---|---|
| Package size | n/a |
| Introduced | May 1998 |
| Memory | EDO DRAM and SDRAM through the board chipset |
| Cooler mounting holes | Socket lug (clip) |
What the K6-2+ 450ACZM is
The AMD K6-2+ 450ACZM is a 450 MHz single-core desktop processor from April 2000. It runs one K6 Sharptooth core at 450 MHz with no turbo, so 1 core gives 1 thread. Cache is 128 KB of full-speed on-chip L2 with 64 KB of L1 on a 180 nm process. Power is rated at 13 W in a Super Socket 7 CPGA package on a 100 MHz front side bus with a 4.5x multiplier.
The M suffix marks a mobile-tuned bin with PowerNow tables that desktop ACZ strings lack, which is why boards with mobile-aware BIOS revisions list the ACZM string separately. AMD sold ACZM Sharptooth parts in April 2000 with desktop ACZ twins. The chip supports MMX, 3DNow+ and PowerNow.
Matching clocks with mobile power tables suits Super Socket 7 boards that throttle by multiplier in quiet cases. The 4.5x ratio is standard for 100 MHz layouts. That is why the 450ACZM shipped in low-noise office systems.
Socket and motherboard compatibility
The 450ACZM fits Super Socket 7 boards with mobile-tuned Sharptooth support. It needs a 321-pin board with a 100 MHz bus and a BIOS that lists K6-2+ ACZM strings. The Socket vs chipset: what decides whether a CPU works guide covers pairing rules.
Low-noise office towers are the natural match. Boards listing K6-2+ 450ACZM accept the chip with a 13 W cooler. Boards with desktop-only strings may boot it as a plain 450ACZ, but PowerNow tables need the M entry.
Memory, PCIe and cooling
Memory is EDO DRAM and SDRAM through the board chipset, matched to the board sockets. The CPU has no memory controller. Office 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 socket lug clip with a 13 W cooler.
Upgrade paths
On the same socket, a move to a K6-2+ 500ACZM keeps the mobile-tuned line for 50 MHz more at equal power. A K6-2+ 450ACZ is the desktop twin at matching clocks. A K6-III+ 450ACZ doubles cache at 12 W.
A move to Slot A Athlon needs a new board. The Super Socket 7 page lists the range for planning.
Frequently asked questions
What socket does the K6-2+ 450ACZM use?
Super Socket 7. It is a 13 W Sharptooth desktop part at 450 MHz with mobile tuning.
What memory does the 450ACZM use?
EDO DRAM and SDRAM through the board chipset.
What is the upgrade path from the 450ACZM?
A K6-2+ 500ACZM for 50 MHz more, or a plain 450ACZ twin.
Sources and verification
Facts last checked against these sources on . Page last edited on .