Sony Vaio VGN-AR51M
Specifications

Price comparison
Average of 3 scores (from 3 reviews)
Reviews for the Sony Vaio VGN-AR51M
Sony and graphics… Besides a number of fine, small notebooks with LED display and elegant carbon fiber cases, Sony also offers at least one interesting series in the fields of desktop replacement notebooks, the AR models. Though big, these are aesthetically pleasing and score points especially by their bright display. Regarding video performance, Sony forges ahead anyway for a long time.
Source: Tech Advisor

The Sony Vaio VGN-AR51M is a good performer that can even turn its hand to gaming. You won't get much more than an hour out of the battery, but given its size and weight you're unlikely to be using it on the move much anyway. The inclusion of a Blu-ray drive is a bonus, but it's a shame the resolution support doesn't allow you to make the most of it.
(von 5): 4, Verarbeitung 4, Ausstattung 4, Preis/Leistung 4
Single Review, online available, Medium, Date: 12/24/2007
Rating: Total score: 80% price: 80% features: 80% workmanship: 80%
Foreign Reviews
Source: Notebookcheck

Single Review, online available, Long, Date: 10/08/2007
Rating: Total score: 87% performance: 89% display: 95% mobility: 56% workmanship: 90% ergonomy: 88% emissions: 81%
Comment
NVIDIA GeForce 8400M GT: NVidia GeForce 8400M GT is the DirectX 10 capable successor of the GeForce Go 7400 for laptops and technologically a slower 8600M GS video card. Not suited for DX 10 games in high details.
Only some 3D games with very low demands are playable with these cards.
» Further information can be found in our Comparison of Mobile Graphics Cards and the corresponding Benchmark List.
Intel Core 2 Duo: This is the Core Duo and Core Solo successor with a longer pipeline and 5-20% more speed without more power consumption. As an addition to the Core Duo design there exists a fourth decoder, an amplified SSE-unit and an additional arithmetical logical unit (ALU).
The Core 2 Duo for laptops is identical to the desktop Core 2 Duo processors but the notebook-processors work with lower voltages (0.95 to 1188 Volt) and a lower Frontside bus clock (1066 vs 667 MHz). The performance of equally clocked notebooks is 20-25% lower than Desktop PCs because of the lower Frontside bus clock and the slower hard disks.
T7250: Mid-range (at the time of annoucement) dual core processor based on the Merom core. » Further information can be found in our Comparison of Mobile Processsors.