Which CPUs do you love or hate

[Gulliver]

Hate: Current x86 micros. I am obliged to use them though, but they are bloated stuff. Have you seen what compromises they had to make to achieve backwards compatibility?. You can fry eggs without problems on them, and you need your own power plant to drive them.
Love: Z80, an 8 bit beauty and efficiently designed. Easy to program, and dead easy to interface with watever components you may find.

[utri007]

I love all cpus, but only one at a time

[Crumb]

love 040/060... even 25Mhz versions made using Amigas a true pleasure. I still remember my Falcon040/25 A1200 accelerator :-)
hate: 030... it was an accelerator but miggies don't look fast with it, even decompressing JPEGs takes ages

love G4: altivec was an elegant idea.
hate any 603 derivatives: crap ppc performance, makes me remember the old A1200/030 dark times when users who only played games were ignorant about 040 superiority

love 68000: it was incredible how many things you could do with a 7Mhz cpu!
hate 68010: an useless upgrade (more or less like 030 boards only used to launch whdload games due to availability of extra ram)

[Karlos]

The 68010 was an important processor. It was never intended to be faster than the 68000, it was intended to better support P&G virtualisation. To that effect, it was the first 680x0 to properly segregate supervisor and user modes and be able to recover from various bus errors.

You can't knock it for not improving the experience on a machine where none of these features really mattered.

[Moto]

MC6809 - First processor I coded assembly on.  Easy enough for an 11 year old to program on!
MOS6502 - Disliked because of lack of 16 bit index registers and didn't like zero paged addressing.  Apple2's weird video memory mapping didn't help me feel the love either.
i8088 - Yuck!  Hated the instruction set and the stupid segment registers.  
MC68000 - Absolutely loved this CPU.  Is such a joy to program on.  Great instruction set!  K-SEKA and Dr. Pepper go hand in hand.

I Stopped programming assembly around 94, but other Memorable CPUs for one reason or another:

Original Pentium 90 -- quite a work horse and I paid way too much for this cpu!
* Celeron SLOT-1 CPUs - I remember burning on out with a peltier-cooler (condensation killed it).  Was able to overclock like crazy!
AMD Athlon "Thunderbird" - got many years of great performance out of this chip.
* Pentium 4 - stupid lame chip that under performed at any Mhz and ran too hot.
Mac Mini's 1.4ghz PPC seems to be a real work horse running OS X as a media server for 3+ years!

Currently loving my 68060 CPU in my 1200 and 4000T

[Karlos]

This Q9450 isn't bad, I suppose.

From a number crunching perspective, I'm more into GPU's at the moment.

[AeroMan]

Love: Z80 - I´ve learned to code with this baby. Easy to use, very flexible.
Like: 6502 - Quite interesting, but I never really coded it for "real" just to play a little with my C64. I need some time to play around with it (huahuahua)
Love: 68020 - Enough power, way better than the 68000.
Hate: Anything that came before the Pentium II - They are slow, and some can fry eggs...
Love: ARM - A hell of a processor, cheap and nice to play with. I've been playing with an ARM7 microcontroller, but I would like to play with the bigger guys
Have to live with: Current x86 derivatives.

[tokyoracer]

Prettry much anything NOT Intel I like, well the 486's @ 100Mhz (and some other X series ones) were pretty good and robust from my experiance.

Mostly I like the... Z80, a real classic processor that really brought the British computing industry to our homes.

All the 680#0 Moto ones (Especially the ceramic ones), for much of the same reasons as above execpt the world.

Socket A Athlon AMD's and the latest AMD Quads (well the good ones anyway).

Also liked some of the RISC ARM and StrongARM CPU's in the Acorn's for their relability.

Wasn't keen on the 68010's though, almost totally pointless especially in the Amiga world.

[koshman]

It's funny. It seems most members of the Amiga community do not like Intel CPUs including the modern ones not surprising, just a bit silly.... maybe...

[B00tDisk]

Loved: 6502/6510

Indifferent to: Z80.  Had one in my 128, I think I used CP/M mode exactly...Once?

Loved: M68k @ 14mhz, namely an AdSpeed I put in my A500.  Made it a wholly different machine.

Hated: M68020 @14mhz in my A1200.  What was the point in all those colors and screenmodes when the stock box ran slower than my A500 did?  

Loved: m68030 @ 28mhz.  Ahh...Now this made my Amiga experience.  I was given an 030 card for my 1200 by a friend (a DKB1204, IIRC) and it really flew, with 4mb fast RAM.  

Loved: 486/100mhz, in my first PC.  The whole board lasted all of a week until I blew it up...sniff...miss ya buddy!

Hated: '486/80, powered the 2nd PC.  Ugh.  Only served to remind me what I'd lost with the death of the first one

Hate hate HAAAAAAAAAAATE: Cyrix 6x86 series "budget" x86 compatibles.  "Hey let's make a pentium clone with '286 FPU performance!"  God I could tell some stories about the 6x86 pr/166 :puke:

Loved: Pentium 200mmx.  Pretty much the pinnacle of the wonder years of P1 design (the 233 was a shade faster, of course, but I never had one ), and it came at a time when PC game innovation was at its peak.  Go back and look at classic PC games and that's what your target CPU is/was.

Loved: Coppermine PIII 750 - I ran this guy for like two, three years.  Loved every ounce of gaming goodness I got out of it.  

Probably would have loved, but had a crappy motherboard: Intel P4 2.2ghz.  Again, had a badly performing board.  If I'd replaced the board rather than jumping to the Athlon 64, I might have had fonder memories...

Lovin': AMD Athlon XP3000 x64.  Ooooold in terms of processor life but seriously?  It's still going, it runs Win7 64bit (pro version) without a hiccup.  Definitely gotta say this is a good CPU.

(I should point out that these are all user experiences; I haven't coded since the 64 days and that was in BASIC LOL)

[swift240]

I loved the 486/4x100 great for DOS, coming from a Commodore 64 to an Amiga A600 I thought the 68000 was fast but my Apollo Turbo Mk-3 33/40 is good enough for what I do realy. I hated the Pentium 4 I had nothing but trouble with that sod, The AMD range of CPU's gave very very good perfomance, Athlon dualcore 64bit 4600+ is great fast smooth never ever had any problem with that CPU. How ever having said all that I must admit the Pentium MMX233 was one of the best CPU's to be made for its class.

[Kronos]

Seriously though, if you profess to love or hate a CPU you are either slightly weird or you are a coder. .

You made some typos here:

Seriously though, if you profess to love or hate a CPU you are  slightly weird (aka a coder). .

Much better

[Zac67]

Love:
all 68k - an assembler freak's wet dream
6502 - an assembler freak's nightmare, but the heart of Apple ][ & C64
Athlon 64 - starting off several evolutionary steps simultaneously
G4 - really kicks ass in Altivec
K6-2 - great upgrade for Pentium boards (thanks AmigaPixel!)

Hate:
Pentium 4 - worst performance per Watt ever, complete nonsense
8086, 286 - coder's bad dream, dumbest memory model ever

[Manu]

I love the 6502,6510 processors they helped form my sweet childhood memories.
Nowdays I could not care less what's inside my box.

[AmigaPixel]

I enjoyed my 030 @50mhz in my A2000, with the 50mhz fpu. But my 060 in my A1200 was a gem,definitely hot though especially when I use to render Lightwave animations. I had to take off the trap door and raise the A1200 up an inch or so and put a house fan right next to it.

By the way I have an old HP with a P4 1.5 socket 423 (A real slug!) that I want to upgrade as cheap as possible.The consenus seems to be the P4 was/is a bloated oven. I already have a Compaq with a Pentium D 820 cpu, and the mb supports Core 2 Duo up to the E6000 series. I seen few socket 478  P4 2.8 with Hyper Threading 1 meg L2 for as cheap as $15 on Ebay and Asus mb less than $20 also with HT support. I figure for the money it wouldn't be bad as long as I get a good heatsink and fan. And a good quality power supply.  I have't used an AMD since the K6-2 400 so I am not very knowledgeable with newer AMD cpus. Any advice on this?

[motrucker]

LOVE/Hate = TI TMS9900     Gads, no one else here used these things?
Love 68030 & 68060  - used to heat my room with an '040

non-committal to most other CPUs.....