WTB: 68010 for A500

[yock1960]

I know, it's hardly worth it, but with my Elbox 500/8 CPU socket memory board and the fact that sidecar accelerator/SCSI
devices are going for $$$$, it's probably the best I can hope for. I already know about Centsible Software but theirs are PGA chips, not DIP!

Thanks!

[Matt_H]

These turn up for cheap on ebay from time to time.

EDIT: Here's some, but probably way more than you need.

[derringer3]

I recommend ebay too. In the German section time to time (every week) somebody put up some 68010. Dont't know which MHz, but i think the lowest was 8MHz.

I used a 10MHz in my system years ago, but of course it was clocked only 7,14MHz in my miggy. With a fast memory it was worth at that time.

[yock1960]

Cool! Thanks!

[hotchalupa]

I might be ordering 1 lot off that eBay auction... yock, if you want just 1 I'll split the cost of 1 + shipping and ask the seller to mail 1 to you, and 2 to me. (I'll make the payment, then you can pay me for the 1.)

I believe 1 comes to about $12.65 (including shipping).

Let me know if you're still looking.  I'll keep 2 for my A1000 and A500.  :-D

[hotchalupa]

Oops, nevermind... Just realized you actually bought a lot already.

I guess I'll have to buy 3.  8-)

[James]

Even though 12$ isn't going to ruin your finances, I don't think it's worth it really. You will have to find the CPU, get it shipped, without knowing if it's in working condition, open the miggy, rip the old one out and put in the new CPU. If it's not fully functional, you risk killing your 500. And all that for *nothing* in terms of performance improvement. The rest of the hardware still clocks your CPU at 7mhz

I'd say.. save up a couple of those 12$ and hunt down the good deals. I have my 'Amiga Fund Box' where I put in some money every now and then. When I need something new or when the geek in me orders me to buy amiga stuff, I look in the box

[derringer3]

@James: I used in the mid '90 a 68010 in my a500. And the speed perfmance was about 15% gain from the original 68000 in avarage. (The official hipe was speed gain 5-80%) You can say it is nothing but with fast ram i was happy to any speed gain at that time. And my system was more than double in speed than a vanilla a500. For example it gave me one sometimes two more channel to play in digibooster.

[Piru]

@derringer3

You gotta be kidding me.

The only case sped up was two instruction loops fitting one longword. Say:

Code: [Select]


.loop:   clr.l  (a0)+
         dbf    d0,.loop

This for sure does not give average gain of 15% over 68000, and nowhere I've seen figures of 80%.

Not to mention 68010 has different supervisor programming model, breaking some old games...

[derringer3]

@Piru: try sysinfo.

In digibooster between a 68000 and a 68010 the difference is one or two channel which you can use.

[Piru]

SysInfo is not generic performance benchmark. SysSpeed is much better (though I don't know if it runs with 68010). No way is 68010 15% faster than 68000 running generic code.

[humppa]

I remember getting myself a 68010 for my A500 at the end ot the eighties. I was quite excited, not because of the speed, but since it must have been my first "hw modification" ever.  :lol:
I remember getting roughly 10% more speed in some AIBB-benchmarks and rendering images with Scene Generator and Mandelbrot stuff was somewhat faster too (at least measurable).

[derringer3]

Yeah i don't want to say that 68010 was/is the ultimate accelerator for amiga. And yes when i change to 68010 sometimes i wanted to see that my miggy is faster in copying, rendering etc, so i saw that, what i want, but in true it was the same. But at that time i want to break trou' the 4 channel "barrier" in music, so every mips, processor time says as you can, which i can gain was my friend. It was not a miracle, and most utils is at at that time slowly goes for 68020 or better,  and i have only money at that time for a cheap pc with sb16. So that's why i leave for a while.

ps: don't forget that 68010 is normally a 68000 with the latest factory tech.

[KThunder]

getting a 16mhz 68000 and doing the 14mhz hack will get you more performance.

i always wanted to get the 25mhz 68000 and try 28mhz with the agnes? clock

[Ivanhoe]

KThunder wrote:
getting a 16mhz 68000 and doing the 14mhz hack will get you more performance.

i always wanted to get the 25mhz 68000 and try 28mhz with the agnes? clock

Yeah !!! That 16 mhz and especially the 25 mhz 68000 performances must be really impressive for and Amiga 500
trying to reach the great levels of the 80/90s Arcade machines ! :crazy: