Major Performance Confusion

[xConVirus]

So I got this computer in 2013 which has an APU with Radeon 7660G graphics with 512 MB VRAM and my mom's early 2011 Macbook Pro is listed as having Radeon HD 6750M graphics with 1GB VRAM.

 

Here's my confusion: The HP laptop can barely keep League of Legends above 50 FPS on the lowest settings (1366x768) whereas the Macbook can do max settings at 60+ FPS (1440x900). I looked up some comparisons: 

 

http://gpu.userbenchmark.com/Compare/AMD-Radeon-HD-6750M-vs-AMD-Radeon-HD-7660G/m7834vsm8022

http://gpuboss.com/gpus/Radeon-HD-7660G-IGP-vs-Radeon-HD-6750M

 

They seem neck and neck with each other, but the I thought the performance discrepancy would be WAY larger considering what each of them are able to handle. Could someone explain why this is? Is the 1GB GDDR5 making all the difference? Is it anything to do with the CPU? Thanks.

 

[Electronics Wizardy]

The 6750 is faster, and the cpu is much faster in the macbook. There is also probably better cooling keeping the chip from throttling.

[don_svetlio]

cooling resulting in less thermal issues on the Mac. CPU is also better

[don_svetlio]

Oh, and the Macbook has GDDR5 vs system RAM on the HP.

[don_svetlio]

Oh wow, that's a very old APU - no wonder it's not performing on par. You want at least a A10 7000 series to be able to game on properly

[xConVirus]

Oh wow, that's a very old APU - no wonder it's not performing on par. You want at least a A10 7000 series to be able to game on properly

 

Yeah...The computer has served me well but I wish I had known everything I do now about computers back then. I'm looking to get a replacement in the next couple of years. Thanks for your answer.

 

The 6750 is faster, and the cpu is much faster in the macbook. There is also probably better cooling keeping the chip from throttling.

 

I see, thank you!

[don_svetlio]

Yeah...The computer has served me well but I wish I had known everything I do now about computers back then. I'm looking to get a replacement in the next couple of years. Thanks for your answer.

 

 

I see, thank you!

If you want a solid gaming laptop, just give me a budget

[-rascal-]

summarizing @don_svetlio 's reponses... 

• Mac uses a full flegged quad-core Intel i7-2720QM Processor
• The Radeon HD 6750M is a full discrete graphics "card" with its own dedicated 1GB of GDDR5 VRAM
• The Radeon 7660G is higher in " model number", but is the...iGPU...in the A10-4600M
• The Radeon 7660G uses system memory (RAM) as VRAM. Higher frequency VRAM will yield significantly higher GPU performance
• In most cases, the RAM in laptops will be either DDR3 1333 MHz or 1600 MHz