Semiconductor & Computer Engineering
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Difference between revisions of "intel/80486/486dx4-75"
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Revision as of 01:41, 23 June 2017
Template:mpu i486DX4-75 was a fourth-generation x86 microprocessor introduced by Intel in 1994. This chip, which is based on the 80486 microarchitecture, had a clock multiplier of x2, x2.5, and x3 with a max operating frequency of 75 MHz, three times the bus frequency. Like the original i486DX, this chip implemented the 80387 FPU on-die and incorporated System Management Mode (SMM). The DX4 series had twice as much cache space as the older processors.
Contents
Cache
- Main article: 80486 § Cache
The i486dx4-100 was offered with two cache policies. Models that came with a write-back cache were marked by an "&EW" identifier. Models that came with a write-through policy were marked by "&E".
| Cache Info [Edit Values] | ||
| L1$ | 16 KiB 16,384 B 0.0156 MiB |
1x16 KiB 4-way set associative (unified, write-through/write-back policy) |
Graphics
This chip had no integrated graphics processing unit.
Features
- System Management Mode (SMM)
Gallery
FC80486DX4-75, S-Spec SX883
See also
Facts about "i486DX4-75 - Intel"
| l1$ description | 4-way set associative + |
| l1$ size | 16 KiB (16,384 B, 0.0156 MiB) + |