RAM labelling

Table with different RAM labelling and thier parameters. By Martin Salac.

Freq [MHz]	Brand	Type	Pins	bit	FSB [MHz]	DTR *) [MT/s]	bw [GB/s]	bw **) [GB/s]	Voltage [V]
16	30pin SIMM	SIMM	32	8	16	N/A	??	N/A	5
66	72pin SIMM	SIMM	72	32	66	66	??	N/A	5 (3.3)
66	PC-66	SDRAM	168	64	66	66	0.528	N/A	5 (3.3)
100	PC-100	SDRAM	168	64	100	100	0.8	N/A	3.3
133	PC-133	SDRAM	168	64	133	133	1.1	N/A	3.3
200	PC-200	SDRAM	168	64	200	200	1.6	N/A	3.3
200	PC-1600	DDR	184	64	100	200	1.6	N/A	2.6
266	PC-2100	DDR	184	64	133	266	2.1	N/A	2.6
333	PC-2700	DDR	184	64	166	333	2.4	N/A	2.6
400	PC-3200	DDR	184	64	200	400	3.2	N/A	2.6
400	PC2-3200	DDR2	240	64	200 (int. 100)	400	3.2	6.4	1.8
533	PC2-4300	DDR2	240	64	266 (int. 133)	533	4.3	8.6	1.8
667	PC2-5300	DDR2	240	64	333 (int. 166)	667	5.3	10.6	1.8
750	PC2-6000	DDR2	240	64	375	750	5.8	11.6	1.8
800	PC2-6400	DDR2	240	64	400 (int. 200)	800	6.4	12.8	1.8
400	PC-800	RDRAM	168	16	400	800	1.6	N/A	2.5
533	PC-1066	RDRAM	168	16	533	1066	2.132	N/A	2.5

*) Data transmition rate
**) Bandwith in dual channel mode

Vocabulary:

• SRAM ... Static Memory (Faster than DRAM but more expesive)
• DRAM ... Dynamic random access memory
• FPM ... Fast Page module (obsolete in 1990, faster than normal DRAM, used in 386/486) -async.
• EDO ... Extended data out (improved FPM, replaced BEDO) - async.
• BEDO ... Burst EDO - async.
• SDRAM ... Synchronnous DRAM
• PC-66 (SDRAM)
• PC-100 (SDRAM)
• PC-133 (SDRAM)
• PC-200 (SDRAM)
• ESDRAM ... Enhanced SDRAM. 16Mbit, low latency, high troughput
• DDR SDRAM ... Double Data Rate SDRAM (Dual Edge 'Clock' Rate,2.5v signalizatino)
• PC1600 (DDR-200 SDRAM)
  
• PC2100 (DDR-266 SDRAM)
• PC2400 (DDR-300 SDRAM)
• PC2700 (DDR-333 SDRAM)
• PC3000 (DDR-366 SDRAM)
• PC3200 (DDR-400 SDRAM)
• DDR2 SDRAM ... Double Data Rate SDRAM II (Quad Edge 'Clock'Rate, 1.8v signalization), 2. generation
  
• PC2-4300 (DDR2-533 SDRAM)
• PC2-5300 (DDR2-667 SDRAM)
• PC2-6400 (DDR2-800 SDRAM)
• DDR3 SDRAM ... Double Data Rate SDRAM III (Octal Edge 'Clock'Rate, 1.5v signalization), 3. generation
  
• PC3-xxx (DDR3-1066 SDRAM)
• PC3-xxx (DDR3-1333 SDRAM)
• PC3-xxx (DDR3-1600 SDRAM)
• RDRAM ... Rambus DRAM [RIMM].
  
• PC600 (RDRAM)
• PC800 (RDRAM)
• PC1066 (RDRAM)
• SLDRAM ... Synchronous-Link DRAM (Random Access Memory); DualEdge 'Clock' Rate
• FRAM ... Ferroelectric RAM (non-volatile RAM)
• SGRAM ... Synchronous Graphic RAM
• VRAM ... Video RAM (Dual Ported)
• NVRAM ... Non-Volatile RAM
• PBRAM ... Pipelined Burst RAM
  
• FB-DIMM ... Fully-Buffered DIMM [JEDEC-standard DDR2 SDRAM]

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