Accelerator Speeds

To better track IIe Accelerator testing this page has been created. Please update the table below with your findings.

As with any page on this Wiki, use the Discussion page (link above) to discuss your findings or related topics.

History

There are many accelerators for the Apple II over the years. Their speeds and processing ability have all been highly debated. This page was created to help document their test results, and is updateable by the Community.

Downloads / Software

As other software is written it will be posted here and the comparison charts updated / added.

• 

  SpeedTest v2.2.2 with NSC and UltraWarp Patch. In "DSK" format.

On July 4th, 2017 Plamen Vaysilov (Пламен Вайсилов) modified modified SpeedTest for the IIe to use a No Slot Clock to more carefully time tests.

Accelerator Comparison

Notes: Some IIe systems may be slightly faster than others. Run the SpeedTest program from a Mass Storage controller can influence some testing. All testing should be done from a floppy disk for most consistent and accurate results to the chart.

Accelerator Speed Results Using "SpeedTest" for the II/+/e/c.
All Times In Seconds	//e 1.024MHz	IIc+ 4MHz	AE TransWarp 3.6MHz	AE TransWarp][ 8MHz	FastChip //e 16.6MHz	McT SpeedDemon Accelerator II	McT SpeedDemon Accelerator IIe	Titan Technologies Accelerator IIe	UltraWarp V1.91G 16.6MHz	ZIPChip 4 Mhz	ZIPChip 8 Mhz
Memory Read	119.2	32	37	18	17.02	36	37	38	14.9	30	7.011
Memory Write	119.2	34	59	30	4.110	41	41	63	2.292	32	3.845
Memory Read (Zero Page)	119.6	32	37	18	17.08	37	36	38	17.08	30	7.035
Memory Write (Zero Page)	119.6	34	37	37	17.08	43	43	38	17.08	41	3.417
Indirect References	124	35	40	20	15.5	39	39	41	9.538	33	6.526
Branch Calculations	119.3(122)	32	37	18	17.04	37	36	38	17.04	30	7.017
Register Variables	83.3(86)	24	26	13	16.66	26	26	27	13.88	21	6.941
Instruction Fetch	114(116)	31	35	17	16.28	35	35	37	14.25	30	6.705
CPU Instruction Mix	114(116)	33	35	21	16.28	35	35	37	16.28	30	5.7
Direct Text Writes	115(119)	36	67	24	2.674	38	37	67	1.825	34	4.423
Direct Text Writes #2	118(122)	37	68	24	2.744	38	38	69	1.815	35	4.538
BIOS Text Write	224	208	51	.7267	247	246	211	.4854	232	.5792
Direct LoRes Writes	118(120)	32	51	21	4.72	36	36	54	3.277	30	5.9
High-Res Memory Writes	114.5(116)	32	42	19	5.452	36	35	47	5.452	29	6.361