WR2, that is an exceptional deal for an awesome budget laptop, the E-450 is NICE.. I got a C-50 with 4GB RAM and 240GB HDD, DVD reader/writer, 5 in 1 card slot w/built in webcam and microphone for $281.00 brand new. But alas, the deal you presented is even better. Good laptops can be had for less than $300 brand new folks!
The AMD C-50 is quite capable and in my real life performance tests on the games and programs that I use, the dual core 1.0ghz C-50 out performs the single core 3.0ghz Pentium4 (I know, that's fairly old, but three times the ghz. It had crap for L1/L2 cache of course, and couldnt be left on for days at a time plugged in without becoming very, very warm to the touch, dare I say hot.)
The AMD C-50 will score between a 2.7 and a 3.0 on the Processor Performance Index score for CPU, from a range of 0.9 to 7.9. However, the strong points of the C-50 APU (technically speaking) are two cores, two levels of cache with a decent amount of megabytes, runs at 8 watts, and heats to 75-80 degrees under _full load_. This thing is underclocked, and its been designed to not be overclockable, because it contains the ATI Radeon HD 6250 Graphics Chipset on the CPU itself. It directly controls the graphics and allows the entire system's available RAM to be accessed for graphic intensive applications. My C-50 laptop for example has 4.0ghz of 1333mhz ddr3 RAM. Considering the system neeeds about 0.5 ghz to run Windows 7 as I have it optimized, I essentially have a PCI-E Radeon HD 6250 with 3.0ghz of 1333mhz RAM accessable to it. While the CPU score is 2.8 (I've seen 2.7 and 2.9 before), the 'Windows Aero Graphics' score is a 5.1, the 'Memory Performance' is 5.5, and the 'Gaming Graphics' score is 5.9. The hard-disk score is 7.3. It runs games that have a minimum requirement of 1.5-2.0Ghz on medium settings with nearly any lag whatsoever. Also, the C-50 runs the graphics bus speed at 280mhz. It has 'out of order' processing technology, which I THINK means that it prioritizes individual data processes in the most optimal fashion, making them 'out of order'.
It is an underclocked, locked AMD C-60. That APU is 1.3ghz and runs the graphics bus at 480mhz instead of 280mhz, it uses the same wattage. Some C-50's, usually Acer brand laptop C-50s from August and Septmber 2011, have C-50's that are actually C-60's once the BIOS is upgraded.
This same technology is used in the E-series, E-350 and E-450, the higher end pair of APUs. Motherboards that accept C-series APU's also receive E-series APU's without issue; even though the E-series has a sightly higher wattage (18w). It also runs the graphics bus at 480mhz, and the E-series APU's have the next-level-up Radeon HD chipset, I think it is the Radeon HD 6320, or 6350. These run at 1.6ghz, have more cache than the C-series, and I also suspect are underclocked.
For a lower-costing laptop, you really can't beat the AMD APUs, (except the single core C-30), you get WAY better graphics and at least equal processing power (even if the ghz do not match, ghz are not everything) to anything of a comparable price with an Intel CPU and on-board cheap graphics chipset.
If you're going to buy a laptop with a C-50 or C-60, you need to optimize Windows 7 to run fairly light visually, and you must set all the power saving and performance quality setting in the entire control panel to 'highest performance'. They come set default as 'best power saving'. You also need to IMMEDIATELY upgrad the Bios to the very latest, and update the ATI graphics driver to at least Catalyst 11.11. By the time you read this, there may well be a newer driver, but 11.11+.
If you do this, I promise you will be pleased with your performance. I have ONE gripe about this laptop, the speakers are kind-of weak on bass, nothing headphones cant fix. ;-) Paid $281.00 for it brand new at a Wal-Mart in late August. Upgraded from 2GB to 4GB of RAM and that made a big difference as well. It really does fly, im pretty astounded that 1.0Ghz can perform this well.
If you grow bored with your C-50 or C-60 laptop and attempt an APU upgrade to an E-350 or E-450, you may find an unfortunate surprise waiting for you; the APU might be soldered into the socket on the mainboard. If so, do not panic! If the entire system was $300 brand new, you can purchase a compatible mainboard and E-450 APU combo upgrade for under a $100. If you're a tech, you could put it in yourself.
Sincerely,
Rockwell Rains
CompTIA A+ Certified (since 2000)
rockwell.rains@gmail.com
Compaq Presario CQ57-229WM
-C-50 dual core 1.0ghz
-Radeon 6250 HD
-4GB DDR3 PC3 1060 RAM
-240GB 7200rpm SATA