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_110989_1_Normal_Large.jpg "ati radeon hd 5450 crossfirex")
OpenGL 2.0, PCI-E 2.0 x16, Powerplay, DisplayPort support up to 2560x1600, HDMI support up to 1920x1080 (both with 7.1 AC3 Audio), 1x Dual-Link/Single-Link DVI, 1x Single-Link DVI Support (all display ports have to be supported by the laptop manufacturer) Still, it is unclear if this value represents the chip alone or the whole MXM board including the memory, which we estimate would add about 2x5 Watts.Ĭompared to the desktop ATI Radeon HD 4870 X2, the mobile 4870 X2 features a slower core clock and should therefore perform a bit slower than even the desktop HD 4850 X2. To put simply, the Avivo HD technology handles all video tasks and enables the GPU to decode HD videos.ĪMD published a power consumption of about 2圆5 Watt for the HD 4870 X2.
Ati radeon hd 5450 crossfirex full#
UVD 2 supports full bitstream decoding of H.264/MPEG-4 AVC and VC-1 streams, dual video stream decoding and Picture-in Picture mode which makes the UVD full BD-Live compliant. The Mobility Radeon HD 4870 X2 includes Avivo HD, an onboard soundchip for 7.1 sound output over HDMI or DisplayPort and the 2nd generation UVD (Unified Video Decoder).
Each of the five instructions of a VLIW bundle has to be independent from the others and the performance therefore depends on the optimization of the driver. The stream processors are also called ALUs and are grouped in five-way VLIW units. These cores do the graphics work of the shader and pixel pipelines of older GPUs. The Mobility HD 4870 x2 is based on two RV770 chips and features 2x800 stream processors (2x160 5-dimensional shader cores). See our dedicated micro stuttering article here for more information. This occurs if both cards are in Alternate Frame Rendering (AFR) Mode since the time delay to display each sequential frame becomes irregular. The 4870 X2 also suffers from micro stuttering most noticeable around 30 fps, similar to all SLI and Crossfire setups. The GPU supports fast GDDR5 graphics RAM, but all laptops as of this writing are built with slower GDDR3 graphics memory (Alienware M17x, Asus). Even demanding DirectX 10 games of 2008 (i.e., Crysis Warhead and Far Cry 2) can be played with high details. Display ConnectorsĪPIs supported, including particular versions of those APIs.Because of the high amount of shaders (2x800) the gaming performance of the Mobility Radeon HD 4870 X2 is very good and allows the gaming of all DirectX 9 games in high resolutions and details. OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). Types and number of video connectors present on the reviewed GPUs. Note that GPUs integrated into processors have no dedicated VRAM and use a shared part of system RAM. Parameters of memory installed: its type, size, bus, clock and resulting bandwidth. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). Useful when choosing a future computer configuration or upgrading an existing one. Information on compatibility with other computer components. Pipelines / CUDA coresĬompatibility, dimensions and requirements Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results.
General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed.
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