Physical Memory: A total of 10MB can be installed using 2
additional 4MB SIMMs. Surprisingly, the Performa 200
does not support 256K SIMMs. Up to 8MB of memory can
be addressed in 24–bit mode on the Performa 200. The
Performa 200 supports 32–bit addressing, though physical
RAM is limited to 10MB. 8MB or 16MB SIMMs will only be
recognized as 4MB SIMMs and are not recommended. So,
memory configurations are 2, 4, 6, or 10MB.
Extended Memory: The 68030 CPU in the Performa 200
has a built–in Memory Management Unit. Therefore, it can
run RAM Doubler or virtual memory without requiring any
additional hardware. In 24–bit mode, the Performa 200 can
address up to 13MB of VM, and in 32–bit mode, it can
address up to 1024MB.
Performa 400, 405, 410 and 430 
Physical Memory: The SIMM bank may either be empty, or
filled with two SIMMs, which must be of the same size. The
machines do not support 256K or 512K SIMMs. 24-bit mode
memory configurations of 4 or 6MB are possible. The ROMs
support standard 32–bit addressing, but are specially
configured to support a maximum of 10MB of RAM. To
address large amounts of RAM, use System 7 standard
32–bit addressing. The LC II can use standard 4MB SIMMs,
but will not address more memory than 10MB.
Extended Memory: The 68030 CPU in the LC II has a
built–in Memory Management Unit. Therefore, it can run
RAM Doubler or virtual memory without additional hardware.
In 24–bit mode the LC II can use up to 14MB of Connectix
Virtual, or 13MB of System 7 VM. In 32–bit mode the LC II can
use up to 1024 MB of virtual memory (or the amount of available hard drive space.) When performance is critical, or hard drive space is limited, we recommend RAM Doubler.
Video RAM: Performa VRAM is installed on-board, with 1 additional VRAM SIMM slot. Performa 400: 256K installed, 512K maximum. 405, 410: 512K maximum installed. 430: 512K installed; 768K maximum
Performa 450 
Physical Memory: The SIMM bank may either be empty, or
filled with one SIMM. The 450 uses a 72-pin SIMM. 24-bit
mode memory configurations of 4, 5, 6, or 8MB are possible.
The SIMM slot also accepts a 8, 16, or 32MB SIMM, for a
maximum of 36MB. To address large amounts of RAM, use
System 7 standard 32–bit addressing.
Extended Memory: The 68030 CPU in the 450 has a built–in
Memory Management Unit. Therefore, it can run RAM
Doubler or virtual memory without additional hardware. In
24–bit mode the 450 can use up to 14MB of Connectix
Virtual, or 13MB of System 7 VM. In 32–bit mode they can
use up to 1024 MB of virtual memory (or the amount of
available hard drive space.) When performance is critical,
or hard drive space is limited, we recommend RAM Doubler.
Video RAM: 512K soldered on. One expansion slot is available for a maximum of 768K video RAM.
Performa 460, 466, 467 
Physical Memory: The SIMM bank may either be empty, or
filled with one SIMM. The 460 uses a 72-pin SIMM. Low
memory configurations of 4, 5, 6, or 8MB are possible. The
SIMM slot also accepts a 8, 16, or 32MB SIMM, for a
maximum of 36 MB. To address large amounts of RAM, use
System 7 standard 32–bit addressing.
Extended Memory: The 68030 CPU in these machines has
a built–in Memory Management Unit. Therefore, they can
run RAM Doubler or virtual memory without additional
hardware. In 24–bit mode these machines can use up to
14MB of Connectix Virtual, or 13MB of System 7 VM. In
32–bit mode they can use up to 1024 MB of virtual memory
(or the amount of available hard drive space.) When
performance is critical, or hard drive space is limited, we recommend RAM Doubler.
Video RAM: 512K soldered on. One expansion slot is available for a maximum of 768K video RAM.
Performa 475, 476 
Physical Memory: The bank may either be empty, or filled
with one 72-pin SIMM. Standard memory configurations of
4, 5, and 8 MB are possible. The SIMM slot also accepts a
8, 16, or 32MB SIMM, for a maximum of 36MB. To address
large amounts of RAM, use System 7 standard 32–bit
addressing.
Extended Memory: The 68040 CPU in the Performa 475
and 476 has a built–in Memory Management Unit.
Therefore, they can run RAM Doubler or virtual memory
without requiring any additional hardware. In 24–bit mode,
these machines can address up to 13MB of VM, and in
32–bit mode, it can address up to 1024MB. In situations
where performance is critical, or hard drive space is limited,
we recommend RAM Doubler.
Video RAM: The Performa 475/476 has two VRAM banks of one slot each. In the standard configuration, one of the banks has 512K of 68–pin VRAM installed in it. The 475/476 only supports 80ns 512K VRAM SIMMs.
Performa 550, 560 
Physical Memory: The bank may either be empty, or filled
with one 72-pin SIMM. Standard memory configurations of
4, 5, 8, 12, 20, and 36MB are possible. The SIMM slot also
accepts a 8, 16, or 32MB SIMM, for a maximum of 36MB. To
address large amounts of RAM, use System 7 standard
32–bit addressing.
Extended Memory: The 68030 CPU in the Performa 550
and 560 has a built–in Memory Management Unit.
Therefore, they can run RAM Doubler or virtual memory
without requiring any additional hardware. In 24–bit mode,
these machines can address up to 13MB of VM, and in
32–bit mode, it can address up to 1024MB. In situations
where performance is critical, or hard drive space is limited,
we recommend RAM Doubler.
Video RAM: The Performa 550/560 has 512K of VRAM soldered on, and one VRAM slot, which can accept a 80ns 256K VRAM SIMM.
Performa 575, 577, 578 
Physical Memory: The bank may either be empty, or filled
with one 72-pin SIMM. Standard memory configurations of
4, 5, 8, 12, 20, and 36MB are possible. The SIMM slot also
accepts a 8, 16, or 32MB SIMM, for a maximum of 36MB. To
address large amounts of RAM, use System 7 standard
32–bit addressing.
Extended Memory: The 68040 CPU in the Performa 575
has a built–in Memory Management Unit. Therefore, it can
run RAM Doubler or virtual memory without requiring any
additional hardware. In 24–bit mode, these machines can
address up to 13MB of VM, and in 32–bit mode, it can
address up to 1024MB. In situations where performance is
critical, or hard drive space is limited, we recommend RAM
Doubler.
Video RAM: The Performa 575 has 2 VRAM SIMM slots, which can hold either 2-256K SIMMs, or 2-512K SIMMs, for a maximum of 1MB of VRAM.
Performa 600, 600 CD 
Physical Memory: The bank may either be empty, or filled
with four SIMMs which must all be of the same size. 24-bit
mode memory configurations of 4, 5, or 8MB are possible
using no SIMMs, 256K, or 1MB SIMMs in the bank. Up to
68MB of physical RAM may be installed on a Performa 600
(4MB soldered on to the motherboard plus four 16MB
SIMMs). Other common configurations are 16MB (4MB built
in plus four 2MB SIMMs) or 20MB (4MB built in plus four
4MB SIMMs). They have 32–bit compatible ROMs, so no
additional software is required to address more than 8MB in
System 7.
Extended Memory: The 68030 CPU in the Performa 600
has a built–in Memory Management Unit. Therefore, they
can run RAM Doubler or virtual memory without requiring
any additional hardware. In 24–bit mode, the Performa 600 can address up to 13MB of VM, and in 32–bit mode, it can address up to 1024MB. In situations where performance is critical, or hard drive space is limited, we recommend RAM Doubler.
Video RAM: The Performa 600 has two VRAM banks of one slot each. In the standard configuration, one of the banks has 512K of 68–pin VRAM installed in it. This is enough to support 16–bit color on the 12" RGB monitor, or 8–bit color on the 13" or 14" color monitor. This can be expanded up to 1MB by putting another 512K VRAM SIMM in the second bank. This configuration will support 16–bit color on the 13” or 14” color monitor. The 600 only supports 100ns 512K VRAM SIMMs. The Performa 600CD configuration ships with 1MB VRAM installed.
Performa 630, 630 CD, 635, 636, 636 CD 
Physical Memory: The bank may either be empty, or filled
with one 72-pin SIMM. Standard memory configurations of
4, 5, 8, 12, 20, and 36MB are possible. The SIMM slot also
accepts a 8, 16, or 32MB SIMM, for a maximum of 36MB. To
address large amounts of RAM, use System 7 standard
32–bit addressing.
Extended Memory: The 68040 CPU in the Performa 630 et.
al. has a built–in Memory Management Unit. Therefore, they
can run RAM Doubler or virtual memory without requiring
any additional hardware. In 24–bit mode,these machines
can address up to 13MB of VM, and in 32–bit mode, it can
address up to 1024MB. In situations where performance is
critical, or hard drive space is limited, we recommend RAM Doubler.
Video RAM: The Performa 630 has 1MB of 80ns DRAM soldered on, which can support 16-bit color on a 14" monitor.
