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Gaming Performance Comparison
In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 7730M are noticeably better than the Nvidia GeForce GT 720M.
The GeForce GT 720M has a 50 MHz higher core clock speed than the Radeon HD 7730M, but the Radeon HD 7730M has 16 more Texture Mapping Units than the GeForce GT 720M. As a result, the Radeon HD 7730M exhibits a 8.4 GTexel/s better Texture Fill Rate than the GeForce GT 720M. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.
The GeForce GT 720M has a 50 MHz higher core clock speed than the Radeon HD 7730M, but the Radeon HD 7730M has 8 more Render Output Units than the GeForce GT 720M. As a result, the Radeon HD 7730M exhibits a 4.2 GPixel/s better Pixel Fill Rate than the GeForce GT 720M. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.
The GeForce GT 720M was released less than a year after the Radeon HD 7730M, and so they are likely to have similar driver support for optimizing performance when running the latest games.
The Radeon HD 7730M has 1024 MB more video memory than the GeForce GT 720M, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the Radeon HD 7730M also has superior memory performance overall.
The Radeon HD 7730M has 14.4 GB/sec greater memory bandwidth than the GeForce GT 720M, which means that the memory performance of the Radeon HD 7730M is slightly better than the GeForce GT 720M.
The GeForce GT 720M has 96 Shader Processing Units and the Radeon HD 7730M has 512. However, the actual shader performance of the GeForce GT 720M is 180 and the actual shader performance of the Radeon HD 7730M is 294. The Radeon HD 7730M having 114 better shader performance and an altogether better performance when taking into account other relevant data means that the Radeon HD 7730M delivers a slightly smoother and more efficient experience when processing graphical data than the GeForce GT 720M.
The GeForce GT 720M requires 33 Watts to run and the Radeon HD 7730M requires 25 Watts. The GeForce GT 720M requires 8 Watts more than the Radeon HD 7730M to run. The difference is not significant enough for the GeForce GT 720M to have a noticeably larger impact on your yearly electricity bills than the Radeon HD 7730M.
|Mini Review||Overview |
GeForce GT 720M is a entry-level Mobile Graphics Card based on the second revision of the Fermi Architecture.
The Fermi Architecture is manufactured with a 40nm Technology and uses a technique known as Hot Clocking: The Shaders are clocked twice as fast as the Central Unit. While this leads to a reasonable performance boost, it causes enormous amounts of energy dissipation, leading, ultimately, to a significantly higher operating temperature.
Fermi is also the first GPU architecture with fully cached memory access which increases memory performance.
It equips a GPU Codenamed GF117-N14M-GE which has 2 Stream Multiprocessors activated and thus offers 96 Shader Processing Units, 16 TMUs and 8 ROPs. The Central Unit is initially clocked at 625MHz and may reach up to 938MHz, in Turbo Mode.
Additionally, GF117 is built using a 28nm technology.
The GPU accesses a 1GB frame buffer of DDR3, through a 64-bit memory interface. The size of the frame buffer is exaggerated and no way benefits the GPU. The Memory Clock Operates at 900MHz.
DirectX 11.0 Support (11.0 Hardware Default) and support for Optimus, 3D Vision Surround, PhysX, Realtime Raytracing and other technologies
With a rated board TDP of 33W, it is suited for average sized laptops.
GeForce GT 720M is essentially a fast GeForce GT 620M with the option for the Boost Clock which depends on the laptop's cooler.
Gaming benchmarks indicate its performance is slightly below the older GeForce GT 635M.
We recommend a modest processor (Intel Core i3 Mobile) and 4GB of RAM for a system with GeForce GT 720M.
Radeon HD 7750M is a Fast-Middle-Class Mobile Graphics Card based on the First revision of the GCN Architecture.
The GCN Architecture succeeds the 40nm Terascale Architecture. In addition to being produced with a 28nm Technology, the GCN Architecture adds other Technologies that allow for energy efficiency. For example, ZeroCore Power, a long idle power saving technology, allows the Graphics Cards to shut down by itself when the Monitor is turned off.
GCN also adds Improved Anisotropic Filtering, DirectX 11 Tessellation and the Partially Resident Textures (PRT) Technology, which enables future games to utilize ultra-high resolution textures with the same performance as today's small and often repetitive textures.
It equips a GPU codenamed Chelsea LE which has 8 Compute Units activated and thus offers 512 Shader Processing Units, 32 TMUs and 16 ROPs. The Central Unit Initially Operates at 575MHz and goes up to 675MHz, in Turbo Mode.
The GPU accesses a 1GB frame buffer of fast DDR3, through a 128-bit memory interface. The size of the frame buffer is adequate. The memory clock operates at 900MHz.
DirectX 11.0 Support (11.0 Hardware Default) and support for Crossfire, PowerTune Technology, Eyefinity, App Acceleration, HD3D, ZeroCore Power and other technologies.
With a rated board TDP of 32W, it is suited for 15" or larger laptops.
Gaming benchmarks put its on average with NVIDIA's GeForce GT 640M.
We recommend a Modest Processor (Intel Core i3 Mobile) and 4GB of RAM for a system with Radeon HD 7730M.