AMD on Monday launched a two-chip graphics card that it hopes will give it a lead in price and performance over rival Nvidia.The ATI Radeon HD 3870 X2 combines two graphics processors on a single board, giving it nearly double the performance of the single-chip Radeon HD 3870 introduced in November 2007, according to AMD. The latest graphics card tops a Teraflop, or 1 trillion floating point operations per second, which is the *****alent of a trillion mathematical calculations per second. AMD’s latest product would compete with Nvidia’s GeForce 8800 Ultra that starts at $630. The Radeon HD 3870 X2 has a suggested retail price of $449.
AMD’s new graphics card will also support the company’s CrossFire X technology, which makes it possible to use up to four cards on a single computer to further boost performance. CrossFire X competes with Nvidia’s scalable link interface, or SLI. AMD plans to release software to enable CrossFire X support for the HD 3870 X2 late in the current quarter. Market researcher Jon Peddie, head of Jon Peddie Research, said AMD’s new card is 170% faster than the single-chip HD 3870, making the new product faster than having two separate cards on a motherboard, which only increases performance by 150%.
ATI Radeon™ HD 3800 Series - GPU Specifications
HD 3870 X2 1GB GDDR3\4 DX10.1 HDTV 2xDVI PCI-E
666 million transistors on 55nm fabrication process
PCI Express 2.0 x16 bus interface5
256-bit GDDR3/GDDR4 memory interface
Ring Bus Memory Controller
Fully distributed design with 512-bit internal ring bus for memory reads and writes
Microsoft® DirectX® 10.1 support
Shader Model 4.1
32-bit floating point texture filtering
Indexed cube map arrays
Independent blend modes per render target
Pixel coverage sample masking
Read/write multi-sample surfaces with shaders
Gather4 texture fetching
Unified Superscalar Shader Architecture
320 stream processing units
Dynamic load balancing and resource allocation for vertex, geometry, and pixel shaders
Common instruction set and texture unit access supported for all types of shaders
Dedicated branch execution units and texture address processors
128-bit floating point precision for all operations
Blu-ray™ / HD DVD playback requires a Blu-ray / HD DVD drive
ATI Radeon HD 3870 and ATI Radeon HD 3850 System Requirements
PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
450 Watt or greater power supply with 75 Watt 6-pin PCI Express® power connector recommended (550 Watt and two 6-pin connectors for dual ATI CrossFireX™)
Blu-ray™ / HD DVD playback requires a Blu-ray / HD DVD drive
السلام عليكم ..
لننظر ماذا وجدنا اليوم !! يحتوي هذا الكرت على ثلاث منافذ DVI وايضا منفذ DHMI و GDDR4 مكسور السرعــــه الى 2,252MHz بدلا من 1,800MHz GDDR3 لسرعة الذاكره.
شركة PowerColor أحد الشركات الرئيسية التى تصنع بطاقات ATI أعلنت أمس عن صدور بطاقتها PowerColor HD 3870 X2 من فئة الـ High-End بذاكرة Samsung GDDR4 . الذاكرة الجديدة تأتى لإضافة بعض الأداء المبهر للبطاقة التى تصنف الآن ويتوقع أيضا ً لفترة قادمة بأنها من أقوى بطاقات الألعاب فى العالم . البطاقة ستزود بـ Samsung's 16Mx32 GDDR4 لتعطى ذاكرة مقدارها 1GB ترددها 1126MHz .
المواصفات الرسمية للبطاقة هى :
البطاقة أيضا ً حتى الآن لاتدعم PCIe 2.0 حيث أنها مازالت تعتمد شريحة الربط من PLX المعروفة PEX 8547 .
