Видеокарта ATI Radeon HD 4850 X2

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Обзор
Производитель
AMD
Серия видеокарты
Radeon HD 4000
Дата выхода
August 12th, 2008
Стартовая цена
$399 USD
Код печатной платы (PCB)
109-B50131-01
Модель платы
AMD B501
Графический процессор
Модель GPU
2× RV770 XT (RV770)
Архитектура
ATI VLIW5 TeraScale
Техпроцесс
55 nm
Площадь ядра
2× 256 mm2
Количество транзисторов
2× 956M
Плотность транзисторов
3.7M TRAN/mm2
Шейдерных блоков
2× 800 (1600)
Потоковых процессоров
2× 40 (80)
SIMD Engines
2× 10 (20)
Текстурных блоков
2× 40 (80)
Блоков растеризации (ROP)
2× 16 (32)
Частоты
Базовая частота
625 MHz
Максимальная частота
уточняется MHz
Частота видеопамяти
995 MHz
Быстродействие памяти
1990 Mbps
Конфигурация памяти
Объем памяти
2× 1024 (2048) MB
Тип памяти
GDDR3
Шина памяти
2× 256 (512)-bit
Пропускная способность
2× 63.7 (127.4) GB/s

жалоба
Физические характеристики
Интерфейс
AGI
Длина
25.7 cm
Высота
2-slot
Разъемы питания
1× 8-pin, 1× 6-pin
Макс. потребление (TDP/TBP)
250 W
Рекомендуемое питание
600 W
Поддержка нескольких GPU
4-way
Выходы дисплея
DVI-I DualLink
2 ×
S-Video
1 ×
Поддержка API
DirectX
10.1
Vulkan
-
OpenGL
3.3
OpenCL
1.2

Производительность
Пиксельная скорость
20 GPixels/s
Текстурная скорость
50 GTexel/s
Макс. производительность
2 TFLOPS
Производительность на Вт.
8 GFLOPS/W
Производительность на мм2
3.9 GFLOPS/mm2




  Модель Ядра Максимальная частота Быстродействие памяти Конфигурация памяти
Thumbnail
ATI Radeon HD 4870 X2
 
1600
-
 
3.6 Gbps
 
4 GB GD5 256b
Thumbnail
ATI Radeon HD 4850 X2
 
1600
-
 
2 Gbps
 
4 GB GD3 256b
Thumbnail
ATI Radeon HD 4890
 
800
-
 
3.9 Gbps
 
1 GB GD5 256b
Thumbnail
ATI Radeon HD 4870
 
800
-
 
1.8 Gbps
 
512 MB GD3 256b
Thumbnail
ATI Radeon HD 4850
 
800
-
 
2 Gbps
 
512 MB GD3 256b
Thumbnail
ATI Radeon HD 4730
 
640
 
900 MHz
-
 
512 MB GD5 128b
Thumbnail
ATI Radeon HD 4770
 
640
-
 
3.2 Gbps
 
512 MB GD5 128b
Thumbnail
ATI Radeon HD 4750
 
640
-
 
3.2 Gbps
 
512 MB GD5 128b
Thumbnail
ATI Radeon HD 4860
 
640
-
 
3 Gbps
 
512 MB GD5 256b
Thumbnail
ATI Radeon HD 4830
 
640
-
 
1.8 Gbps
 
512 MB GD3 256b
Thumbnail
ATI Radeon HD 4670
 
320
-
 
1.6 Gbps
 
512 MB GD3 128b
Thumbnail
ATI Radeon HD 4650
 
320
-
 
1.4 Gbps
 
256 MB GD3 128b
Thumbnail
ATI Radeon HD 4570
 
80
-
 
1 Gbps
 
1 GB D2 64b
Thumbnail
ATI Radeon HD 4450
 
80
-
 
1.3 Gbps
 
512 MB D2 64b
Thumbnail
ATI Radeon HD 4350
 
80
-
 
800 Mbps
 
512 MB D1 64b
Thumbnail
ATI Radeon HD 4550
 
80
-
 
1.3 Gbps
 
256 MB D2 64b
Thumbnail
ATI Radeon HD 4550 LP
 
80
-
 
1.3 Gbps
 
256 MB D2 64b
Thumbnail
ATI Radeon HD 4250
 
40
-
 
792 Mbps
 
512 MB D2 64b
  Модель Ядра Максимальная частота Быстродействие памяти Конфигурация памяти
Thumbnail
ATI Radeon HD 4870 X2
 
1600
-
 
3.6 GB/s
 
4 GB GD5 256b
Thumbnail
ATI Radeon HD 4850 X2
 
1600
-
 
2 GB/s
 
4 GB GD3 256b
Thumbnail
ATI Radeon HD 4870
 
800
-
 
1.8 GB/s
 
512 MB GD3 256b
Thumbnail
ATI Radeon HD 4850
 
800
-
 
2 GB/s
 
512 MB GD3 256b
Thumbnail
ATI Radeon HD 4730
 
640
 
900 MHz
-
 
512 MB GD5 128b
Thumbnail
ATI Radeon HD 4830
 
640
-
 
1.8 GB/s
 
512 MB GD3 256b

Видеокарта ATI Radeon™ HD 4850 X2 Graphics

Believe it or not – the best just got better. For the first time ever, 2.4 teraFLOPS of graphics horse Питание, 1600 Потоковые процессоры and 2 GB of GDDR3 Память have been combined to create the fastest and most Питаниеful graphics card available today.1

Видеокарта ATI Radeon™ HD 4850 X2 Graphics Specifications

  • 1.912 billion processors (956 million transistors per GPU on 55nm Техпроцесс)
  • PCI Express® 2.0 x16 bus Интерфейс
  • 512-bit GDDR3 Память Интерфейс (ATI Radeon™ HD 4850 X2)
  • 512-bit GDDR5 Память Интерфейс (ATI Radeon™ HD 4870 X2)
  • 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 F
  • Unified Superscalar Shader Архитектура
    • 1600 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
    • Command processor for reduced CPU overhead
    • Shader instruction and constant caches
    • Up to 320 texture fetches per clock cycle
    • Up to 128 textures per pixel
    • Fully associative multi-level texture cache design
    • DXTC and 3Dc+ texture compression
    • High resolution texture support (up to 8192 x 8192
    • Fully associative texture Z/stencil cache designs
    • Double-sided hierarchical Z/stencil buffer
    • Early Z test and Fast Z Clear
    • Lossless Z & stencil compression (up to 128:1)
    • Lossless color compression (up to 8:1)
    • 8 render targets (MRTs) with anti-aliasing support
    • Physics processing support
  • Dynamic Geometry Acceleration
    • High Производительность vertex cache
    • Programmable tessellation unit
    • Accelerated geometry shader path for geometry amplification
    • Память read/write cache for superior stream output Производительность
  • Anti-Aliasing Features
    • Multi-sample anti-aliasing (2, 4 or 8 samples per pixel)
    • Up to 24x Custom Filter Anti-Aliasing (CFAA) for superior quality
    • Adaptive super-sampling and multi-sampling
    • Gamma correct
    • Super AA (ATI CrossFireX™ configurations only)
    • All anti-aliasing features compatible with HDR rendering
  • Texture Filtering Features
    • 2x/4x/8x/16x high quality adaptive anisotropic filtering modes (up to 128 taps per pixel)
    • 128-bit floating point HDR texture filtering
    • sRGB filtering (gamma/degamma)
    • Percentage Closer Filtering (PCF)
    • Depth & stencil texture (DST) format support
    • Shared exponent HDR (RGBE 9:9:9:5) texture format support
  • OpenGL 3.2 support ATI Avivo™ HD Video and Display Platform1
    • 2nd generation Unified Video Decoder (UVD 2)
      • Enabling hardware decode acceleration of H.264, VC-1 and MPEG-2
      •  Dual stream playback (or Picture-in-picture)
    • Hardware MPEG-1, and DivX video decode acceleration
      • Motion compensation and IDCT
    • ATI Avivo Video Post Processor1
      • New enhanced DVD up-conversion to HD
      • New automatic and dynamic contrast adjustment
      • Color space conversion
      • Chroma subsampling format conversion
      • Horizontal and vertical scaling
      • Gamma correction
      • Advanced vector adaptive per-pixel de-interlacing
      • De-blocking and noise reduction filtering
      • Detail enhancement
      • Inverse telecine (2:2 and 3:2 pull-down correction)
      • Bad edit correction
      • Full score in HQV (SD) and HQV (HD) video quality benchmarks
    • Two independent display controllers
      • Drive two displays simultaneously with independent resolutions, refresh rates, color controls and video overlays for each display
      • Full 30-bit display processing
      • Programmable piecewise linear gamma correction, color correction, and color space conversion
      • Spatial/temporal dithering provides 30-bit color quality on 24-bit and 18-bit displays
      • High quality pre- and post-scaling engines, with underscan support for all Выходы дисплея
      • Content-adaptive de-flicker filtering for interlaced displays
      • Fast, glitch-free mode switching
      • Hardware cursor
    • Two integrated DVI Выходы дисплея
      • Primary supports 18-, 24-, and 30-bit digital displays at all resolutions up to 1920×1200 (single-link DVI) or 2560×1600 (dual-link DVI)2
      • Secondary supports 18-, 24-, and 30-bit digital displays at all resolutions up to 1920×1200 (single-link DVI only)2
      • Each includes a dual-link HDCP encoder with on-chip key storage for high resolution playback of protected content4
    • Two integrated 400MHz 30-bit RAMDACs
      • Each supports analog displays connected by VGA at all resolutions up to 2048×15362
    • DisplayPort™ output support
      • Supports 24- and 30-bit displays at all resolutions up to 2560×16002
      • Integrated HD audio controller with up to 2 channel 48 kHz stereo or multi-channel (7.1) AC3 enabling a plug-and-play cable-less audio solution5
    • HDMI® output support
      • Supports all display resolutions up to 1920×10802
      • Integrated HD audio controller with up to 2 channel 48 kHz stereo or multi-channel (7.1) AC3 enabling a plug-and-play cable-less audio solution5
    • Integrated AMD Xilleon™ HDTV encoder
      • Provides high quality analog TV output (component/S-video/composite)
      • Supports SDTV and HDTV resolutions
      • Underscan and overscan compensation
    • MPEG-2, MPEG-4, DivX, WMV9, VC-1, and H.264/AVC encoding and transcoding
    • Seamless integration of pixel shaders with video in real time
    • VGA mode support on all Выходы дисплея
  • ATI ПитаниеPlay™ Technology4
    • Advanced Питание management technology for optimal Производительность and Питание savings
    • Производительность-on-Demand
      • Constantly monitors GPU activity, dynamically adjusting Частоты and voltage Основана на user scenario
      • Clock and Память speed throttling
      • Voltage switching
      • Dynamic clock gating
    • Central thermal management – on-chip sensor monitors GPU temperature and triggers thermal actions as required
  • Dual Mode ATI CrossFireX™ Multi-GPU Technology
    • Scale up rendering Производительность and image quality with up to four GPUs
    • Integrated compositing engine
    • High Производительность bridge interconnect

Видеокарта AMD Launches World’s Fastest Graphics Card 1

− ATI Radeon™ HD 4870 X2 delivers up to 80 percent more Производительность than award-winning ATI Radeon™ HD 4870 2 −

Sunnyvale, Calif. — 8/12/2008 —AMD (NYSE: AMD) today announced the world’s fastest graphics card, the ATI Radeon™ HD 4870 X2, advancing visual computing ever closer to eye-definition computing gaming and cinematic experiences and delivering a whopping 2.4 teraFLOPS of processing Питание. Also announced today is the ATI Radeon™ HD 4850 X2 graphics card, delivering blistering Производительность at a compelling price point.

These карты comprise the ATI Radeon HD 4800 X2 серия, combining two ATI Radeon HD 4800 серия GPUs with a more advanced cross-GPU connection Основана на the PCIe 2.0 standard, plus two gigabytes of Память – the most in any currently available consumer graphics card. These technologies combine to make the ATI Radeon HD 4800 X2 серия perfectly suited for the most demanding games, able to deliver astonishing frame rates at extreme resolutions and image quality settings.

The capabilities of the ATI Radeon HD 4800 X2 серия were on display yesterday in New York City, where leading experts from the game development community and Hollywood joined AMD to discuss and demonstrate eye-definition computing computing. Eye-definition computing is the art and science of achieving visual computing experiences that seem optically real. The tremendous computational 2.4 teraFLOPS horseПитание of the ATI Radeon HD 4800 X2 серия makes computing experiences that approach eye-definition computing possible. The first application of eye-definition computing computing, demonstrated by AMD in New York yesterday, is Cinema 2.0, the fusion of digital people, places and things, rendered with real-time interactivity. Cinema 2.0 shows the Питание to digitally create interactive environments and characters that seem optically real in either a video game or digital cinema context. With the help of leading content creators, AMD demonstrated the first “virtual” actor to be rendered in real-time in perfect, lifelike detail, via the incredible processing Питание found in the ATI Radeon HD 4800 X2 серия.

Основана на an advanced 55nm design and leading DirectX® 10.1 support, the ATI Radeon HD 4800 X2 серия delivers engineering elegance and the industry’s most compelling feature set. The ATI Radeon HD 4870 X2 is immediately available from e-tailers worldwide priced at USD $549 SRP, while the ATI Radeon HD 4850 X2 is scheduled to be available in September at an estimated price of USD $399.3

“The ATI Radeon HD 4800 X2 серия is proof that our graphics strategy is working. The response from OEMs, system integrators, game developers, press, and most importantly, from gamers regarding the ATI Radeon HD 4800 серия products has been incredibly positive. Now, only a few short weeks after the launch of those products, AMD reclaims the ultimate Производительность crown and continues to deliver winning products to market in the ATI Radeon HD 4800 X2 серия,” said Rick Bergman, senior vice president and general manager, Graphics Products Group, AMD. “The ATI Radeon HD 4800 X2 серия continues AMD technology leadership with support for DirectX 10.1, tessellation, and now 2GB of frame buffer. The new products join a line-up of stellar offerings, all of which are designed to give gamers experiences that approach eye-definition computing.”

ATI Radeon HD 4870 X2 press and analyst reception
Initial product previews of the ATI Radeon HD 4800 X2 серия highlight the superior Производительность and incredible image quality it delivers:

  • “Our gameplay experiences with the ATI Radeon HD 4870 X2 were phenomenal, especially once we raised the antialiasing setting to high levels… Who would have thought we’d ever be seeing Oblivion at 2560×1600 with 24X AA? This means you can load up old games and set crazy high AA settings. AMD deserves huge kudos for really kicking AA up a notch,” said Brent Justice, HardOCP.4
  • “The Radeon HD 4870 X2 is looking like it beat [the GTX280] as it spanked even the overclocked GeForce GTX 280 in our testing. AMD has pulled off another one with the Radeon HD 4870 X2,” said Nathan Kirsch, Legit Reviews.5
  • “The ATI Radeon HD 4870 X2 proves AMD’s ability to scale their Архитектура and offer high Производительность at normal prices, and still stay within comfortable Питание demand,” said Jon Peddie, president and founder of Jon Peddie Research.

Driving the ultra-enthusiast experience
The ATI Radeon HD 4800 X2 серия provides support for ATI CrossFireX™, enabling incredibly fast gaming PCs with unmatched Производительность at ultra-high settings. Enthusiast gamers can now run the most demanding games smoothly in at the highest settings, enabling modes that were not playable before.6 With the efficient use of all four GPUs in a dual ATI Radeon HD 4870 X2 CrossFireX configuration, gamers will enjoy more than 3 times the Производительность of a single ATI Radeon HD 4870 card in many games.7

“AMD has regained the graphics Производительность crown with this launch,” said Patrick Cooper, Director of Product Planning, Alienware. “The ATI Radeon HD 4870 X2 is what gamers have been waiting for—blistering Производительность in DirectX 10.1 games backed by stable drivers for great scaling in ATI CrossFireX mode.”

“Gamers that buy Falcon Northwest PCs demand nothing but the best possible Производительность, and today the one that delivers the best gaming experience, is a quad ATI CrossFireX rig using two ATI Radeon HD 4870 X2 карты, like those found in our Mach V,” said Kelt Reeves, president of Falcon Northwest. “We’re committed to bringing the world the ultimate gaming PCs featuring the leading technology. With support for the latest DirectX 10.1 games, only ATI Radeon graphics let us do that.”

“As a premier provider of high-Производительность PCs, the stellar Производительность and leading technologies of the ATI Radeon HD 4800 X2 серия makes it a perfect match for Velocity Micro,” said Randy Copeland, President and CEO, Velocity Micro. “AMD once again has the fastest card around, and with support for the latest DirectX 10.1 games, it makes it a natural choice for gamers wanting the latest and greatest technology in their Velocity Micro system.”

ATI Radeon HD 4870 X2: The world’s fastest graphics card
The ATI Radeon HD 4870 X2 delivers unsurpassed graphics horseПитание, setting a new Производительность bar for visual computing with 2.4 teraFLOPS of processing Питание on a single card. It is also the world’s first graphics card to include 2GB of ultra-high bandwidth GDDR5 Память. The ATI Radeon HD 4870 X2 features two GPUs Основана на a second generation 55nm technology and clocked at 750 MHz, with a combined 1600 Потоковые процессоры.

Engineered to be the world’s fastest graphics card, the ATI Radeon HD 4870 X2 was built with efficiency, scalability and Производительность in mind, delivering four times the Производительность efficiency AMD high-end GPU offerings released just one year ago.6

ATI Radeon HD 4850 X2: New levels of Производительность under $4003
Setting a new Производительность standard in Видеокарты priced under $4003, the ATI Radeon HD 4850 X2 provides the Питание to play today’s most demanding titles at ultra-high settings. Like its big brother, the ATI Radeon HD 4850 X2 features 1600 Потоковые процессоры, and two GPUs clocked at 625 MHz. The ATI Radeon HD 4850 X2 features 2GB of GDDR3 Память.

Ecosystem Support
The ATI Radeon HD 4800 серия is supported by a dozen add-in-board companies offering custom designs of the products. Building high-Производительность versions of the ATI Radeon HD 4800 X2 серия products are, ASUS, Club 3D, Diamond Multimedia, Force3D, GECUBE, GIGABYTE, HIS (Hightech Information Systems), Jetway, MSI, Palit Multimedia, POWERCOLOR, SAPPHIRE Technology and VisionTek.

The ATI Radeon HD 4800 серия press kit may be viewed at: www.amd.com/ATIRadeonHD4800/presskit.

About AMD
Advanced Micro Devices (NYSE: AMD) is a leading global provider of innovative processing solutions in the computing and graphics markets. AMD is dedicated to driving open innovation, choice and industry growth by delivering superior customer-centric solutions that emПитание consumers and businesses worldwide. For more information, visit www.amd.com.