Since 2008 there was no detailed knowledge about the well-known successor of the "Fermi" GTX 480M obtainable, whose new top benchmark results and hefty price seperate the community.
Now, at its official launch we had the chance to inclusive test the GTX 485's performance inside a Clevo P150HM notebook, made obtainable to as in form of the XMG P501 from Schenker Notebooks. We check its performance reserves by running many games and benchmarks.
Now, at its official launch we had the chance to inclusive test the GTX 485's performance inside a Clevo P150HM notebook, made obtainable to as in form of the XMG P501 from Schenker Notebooks. We check its performance reserves by running many games and benchmarks.
The Test System
We could run the GPU tests on a barebone from Clevo. Called XMG P501 it is offered by Schenker Notebooks. The small 15-incher can be equipped with Sandy-Bridge quad core CPUs up to the i7-2920XM CPU (test configuration). Thanks to its powerful Nvidia GTX 485M graphics card it also delivers top-of-the-line performance in games. A detailed review of the notebook will be available on notebookcheck.net within the next few days.
The Test System: Schenker XMG P501 / Clevo P150HM
Test configuration:
- Windows 7 Home Premium 64bit
- Intel ID0104 chip set
- Intel Core i7 quad core i7-2920XM Sandy Bridge CPU
- Nvidia Geforce GTX 485M high-end GPU
- 15.6" Full-HD LED display, non-glare!
- 16GB DDR3 RAM 1333MHz
- Seagate Momentus ST9750420AS HDD (750GB/7200rpm)
- Price: not fixed yet, depends on the configuration
Nvidia Geforce GTX 485M – Technology
Other than the GeForce GTX 480M, the 485M is no longer based on a trimmed down GF100 chip, but on the related GF104, which is designed for the consumer sector and has 385 cores if completely used. E.g., it is already used in the GeForce GTX 470M (but only with 288 cores) which convinced with a performance on par with the GTX 480M and low energy demand.
The technology differs quite a bit from the GF100 chip (which was actually designed for professional use) and was optimized. The GF104 has more shaders (3x16 vs. 2x16), texture units (8 vs. 4) and SFUs (Special-Funciton-Units) per Streaming-Multiprocessors (SM). Nvidia now uses the superscalar architecture, because there are still only two warp schedulers supporting three shader blocks. In theory this helps utilizing the shaders more efficiently and increases the performance per core. However, the performance can even drop below the GF100 architecture (and its predecessors) in the worst case.
The ECC memory protection, important in professional applications, was completely omitted and the FP64 was trimmed down (only 1/3 of the shaders are FP64-capable, only 1/12 of the FP32 performance). Because of the reductions in comparison with the GF100, the size of a SM increased only by 25% despite the higher number of shaders. It is not possible to directly compare the number of cores to the AMD Radeon graphics cards (e.g. HD 5870) and its predecessors (e.g., G92b), because shader architecture and clock rates are different.
The technology differs quite a bit from the GF100 chip (which was actually designed for professional use) and was optimized. The GF104 has more shaders (3x16 vs. 2x16), texture units (8 vs. 4) and SFUs (Special-Funciton-Units) per Streaming-Multiprocessors (SM). Nvidia now uses the superscalar architecture, because there are still only two warp schedulers supporting three shader blocks. In theory this helps utilizing the shaders more efficiently and increases the performance per core. However, the performance can even drop below the GF100 architecture (and its predecessors) in the worst case.
The ECC memory protection, important in professional applications, was completely omitted and the FP64 was trimmed down (only 1/3 of the shaders are FP64-capable, only 1/12 of the FP32 performance). Because of the reductions in comparison with the GF100, the size of a SM increased only by 25% despite the higher number of shaders. It is not possible to directly compare the number of cores to the AMD Radeon graphics cards (e.g. HD 5870) and its predecessors (e.g., G92b), because shader architecture and clock rates are different.
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