Expert thoughts on AMD-based upgrades for a 4th Grader's Learning Experience

jlw596

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May 21, 2015
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I'm a noob, so if this is in the wrong spot, please accept my apologies and point me in the direction of the appropriate forum. My 10 year old son wanted a laptop for Christmas 2014, but being a DIY dad, I bought him a budget bundle from TD, and coached him through building it himself. The intent was for him to get comfortable working with hardware, and also for us both to learn how upgrading hardware impacts real-world performance in the things we use our computers for... and hopefully record the results and turn it into a fun project worthy of the school science fair.

Current components are A6-5400K on Gigabyte F2A88XM-DS2 board, Adata 4 GB DDR3 1600, 1 tb WD Blue HDD in an Ultra budget case (with some red LED case fans, DVD drive, etc). Clearly a low-end machine.

He's pretty into Minecraft, and one his pet peeves is how slow both my laptop and mom's HP touch-screen all-in-one (older i5) can render large TNT explosions. For his "bench-marking" purposes, he has chosen to build a 20 X 20 X 20 cube of TNT in Minecraft (10 x 10 x 10 brings the HP to it's knees) back it up, then measure and record the time it takes to render all 8000 explosions. We plan to run it with each hardware configuration three times to normalize the results, then compile the data into a format that is easy to communicate to other 10 year old kids.

So I have rambled extensively with the background, now for the questions, as it's up to me to figure out what budget-friendly upgrades will deliver the most bang for the buck to keep this interesting. Here's what I am thinking, and I'd appreciate any feedback:

Phase 1: Purchase dual channel 8 gb (2X4) kit of 2133 mhz DDR3. Run test with 4 gb single channel 1600 mhz, 4gb in single channel 2133 mhz, and 8 gb dual channel 2133 mhz. Based on my research, these configs should progressively show noticeable improvements, even with the A6-5400K APU.

Phase 2: Purchase quad core APU (probably A8-7600 or 7650K). Re-run tests with all three RAM configs. Should see overall performance improvement with quad core and R7 graphics, and progressive improvements with RAM upgrades.

When all is said and done, I'm thinking this will be a good experience for him, and quite frankly an AMD A8 Kaveri system with 8 GB of 2133 RAM ought to be an adequate system for him for quite some time. (Plus I'll have a bunch of parts laying around to build a budget HTPC.) The build was about $200 (obviously not including OS, monitor, and peripherals... sunk cost no matter what), and I can get the upgrades for about $150 at current prices. What are your thoughts? Is there a better way to go with $150 for this purpose, and keep a 10 year old interested?

 
I'd make the learning experience about overclocking the snot out of that A6. If you break it (very hard), you were going to buy a new CPU anyway.

The Richland chips have a ton of headroom on the CPU, GPU, and memory controller, so it could make for some good benchmarking.

Make a HWBOT account. There is a newbie division, so it's not too hard to earn some cups and ribbons.
 
So being the person I am, I went ahead and did the same tests as you did. Except I did 50x50x50. I was able to successfully handle it. Although, it did freeze for 1-2 frames. After the ram upgrade, I would try to aim for an a10, although it is still near the 100$ range, but it handles MC pretty well for being a chip of that cost. Also, as Damric said, an OC currently to the a8 will be pretty nice.


But I like that you went ahead and thought this through :) I don't see that very often. Good job.


Now, you will see a big increase in performance when you move to 2133 or evem 2400. APUS need very high ram frequency because of the internal GPU. So yes you will see more performance.
 


That too would make a noticable difference. But MC is very CPU bound, so the ram/cpu upgrade would probably be the best right now. Something like Shaders Mod where it requires intense GPU power.
 
Thank you all for your prompt responses! I would agree that adding a decent dedicated GPU might deliver the biggest overall improvement, but this is as much about the journey as the destination. I am more comfortable letting a 10 year old swap sticks of RAM in and out of a mobo than messing with a $150+ GPU.

Great idea on OCing the A6-5400k, that isn't something I've ever played around with. The APU has a "K" at the end of the model number for a reason, right! Going that route, I'd think temp control with the OEM cpu heat sink would be an issue. How far could I maybe push it with the stock cooler? If I upgrade would something like Cooler Master Hyper TX3 be sufficient? I just don't see that buying a $50+ heat sink would make sense for a $40 APU. Guess I could always use it and stick an A10-7850K in later instead of an A8. Thanks again, everyone.
 

So we ran the AutoTune from AMD Catalyst Center, OC'd the APU to 4.0 GHz for now, and pulled the trigger on 16 gb (8x2) HyperX Savage 1866 mhz CL 9 from Amazon for just over $100. I think with that RAM and relatively inexpensive APU upgrade options for FM2+ mobo, we should have plenty of room to play for awhile. Thanks again for spending the time to reply.

This is his initial build video if anyone's interested (he clearly has an amateur-level coach/videographer/dad, please don't bully him in comments):
https://youtu.be/j9uJy9WDBUc