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Gaming Performance Comparison
In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 635M 2GB DDR3 are significantly better than the Intel HD Graphics 4600 Mobile.
The GT 635M has a 275 MHz higher core clock speed and 20 more Texture Mapping Units than the Graphics 4600. This results in the GT 635M providing 14.6 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.
The GT 635M has a 275 MHz higher core clock speed and 14 more Render Output Units than the Graphics 4600. This results in the GT 635M providing 10 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.
The Graphics 4600 was released over a year more recently than the GT 635M, and so the Graphics 4600 is likely to have better driver support, meaning it will be more optimized for running the latest games.
The GT 635M has 2048 MB video memory, but the Graphics 4600 does not have an entry, so the two GPUs cannot be reliably compared in this area.
The HD Graphics 4600 Mobile has 80 Shader Processing Units and the GeForce GT 635M 2GB DDR3 has 144. However, the actual shader performance of the Graphics 4600 is 392 and the actual shader performance of the GT 635M is 288. The Graphics 4600 having 104 better shader performance is not particularly notable, as altogether the GT 635M performs better when taking into account other relevant data.
The Graphics 4600 transistor size technology is 18 nm (nanometers) smaller than the GT 635M. This means that the Graphics 4600 is expected to run slightly cooler and achieve higher clock frequencies than the GT 635M.
The HD Graphics 4600 Mobile requires 45 Watts to run and the GeForce GT 635M 2GB DDR3 requires 35 Watts. The Graphics 4600 requires 10 Watts more than the GT 635M to run. The difference is not significant enough for the Graphics 4600 to have a noticeably larger impact on your yearly electricity bills than the GT 635M.
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|Max Power||45 Watts||vs||35 Watts|
|Recommended RAM||-||4 GB|
|Recommended Screen Size||-||1366x768|
|Mini Review||Intel HD Graphics 4600 Mobile is the successor to Intel HD 4000 Mobile that's featured in the Haswell based Mobile CPUs. |
It features 20 Execution Units (80 Shader Processing Units) and its central-unit speed will range between 400MHz and 1300MHz (Turbo Boost) and that the fastest memory supported is DDR3-1600 meaning its memory-clock will operate at 800MHz, at the most.
Benchmarks indicate its performance is up to 25% better than previous Intel HD 4000. However, only Iris Graphics offer performance good enough to play all modern demanding games, some even with extremely fluent frame rates.
|GeForce GT 635M 2GB DDR3 is a middle-class mobile GPU still based on the 2010 Fermi architecture. |
It's based on the Fermi GF106 Core and offers 144 Shader Processing Units, 24 TMUs and 24 ROPs on a 192-bit memory interface of 2GB DDR3. The central clock runs at 675MHz and the memory clock operates at 900MHz. Expect a power consumption of up to 35 Watts.
Its performance is above the average and actually higher than the GDDR5 variant thanks to the higher SPUs, TMUs and ROPs count and because extra bandwidth does not benefit this GPU largely and so the GDDR5 is essentially bottlenecked by the GPU's processing power.
Therefore expect to run some modern demanding games at high settings with fluent frame rates (30+) using a 1080p resolution.