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Performance comparison between ThinkPad P50 with NVidia M1000M, ThinkPad W701 with NVidia Quadro 2800M, ThinkPad X230 with Intel HD4000 and ThinkPad T520 with NVidia NVS 4200M – Ioannis Karagiorgos blog
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Performance comparison between ThinkPad X230 with Intel HD4000 and ThinkPad T520 with NVidia NVS 4200M – Ioannis Karagiorgos blog
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FRU 63Y1991 63Y1996 Applies to Lenovo Thinkpad T420 T420i Notebook Motherboard NVIDIA Quadro NVS 4200M 1G DDR3 100% Test Work - Newegg.com
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FRU 63Y1991 63Y1996 Applies to Lenovo Thinkpad T420 T420i Notebook Motherboard NVIDIA Quadro NVS 4200M 1G DDR3 100% Test Work|Motherboards| - AliExpress
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Performance comparison between ThinkPad W701 with NVidia Quadro 2800M, ThinkPad X230 with Intel HD4000 and ThinkPad T520 with NVidia NVS 4200M – Ioannis Karagiorgos blog
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Lenovo ThinkPad T520 Notebook 39.6 cm (15.6") Full HD 2nd gen Intel® Core™ i7 4 GB DDR3-SDRAM 160 GB SSD NVIDIA® Quadro® NVS 4200M Windows 7 Professional Black
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