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 Graphics Card: ATI Mobility Radeon HD 4570 512MB DDR3
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One of the main attractions of this laptop is the graphics engine that lies beneath the hood. The Acer 5542G comes with a dedicated ATI Mobility Radeon HD 4570 with 512 MB of DDR3 memory. The specs are as follows: |
| Series |
Mobility Radeon HD 4000 |
| Codename |
M92-XT |
| Pipelines |
80 - unified |
| Core Speed * |
680 MHz |
| Shader Speed * |
680 MHz |
| Memory Speed * |
800 MHz |
| Memory Bus Width |
64 Bit |
| Memory Type |
GDDR3, DDR2, DDR3 |
| Max. Amount of Memory |
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| Shared Memory |
no
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| DirectX |
DirectX 10.1, Shader 4.1 |
| Transistors |
242 Million |
| technology |
55 nm |
| Features |
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) |
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For those of you who are not clear about the difference between an integrated and a dedicated graphics solution, I’m adding a few words. An Integrated graphics solution (eg: the Intel’s X4500) doesn’t come with dedicated video memory; it eats up your system memory for graphics processing and thus the slower path between the system memory and the graphics engine causes the biggest bottle-neck when it comes to performance. Also the integrated graphics processor would be less powerful than a mainstream dedicated one in raw processing power. On the other hand, a dedicated graphics card will usually have a high speed dedicated video memory (eg: DDR3) which is coupled to the graphics processor. This removes the bottle neck and gives the card superior performance. The graphics processor on a dedicated card would usually support high-end effects provided by the latest DirectX and OpenGL APIs which gives the realism and visual-candy in the latest games. |
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The ATI Mobility Radeon HD 4570 is a faster clocked version of the Mobility Radeon 4530/4330. It has a 64 Bit memory bus and comes with a 512MB DDR3 VRAM. The 512MB should be adequate for most gaming and graphics needs, unless you play in the craziest resolutions. (As rendering resolution increases, the more memory it needs). The DDR3 memory will meet the needs for the fastest and huge volume texture processing that modern games demand. However the 64 bit bus stands inferior to the 128 bit bus that most mainstream cards offer.
The ATI Mobility Radeon 4570 is based on the RV710 chip and it provides 80 stream processors. The Mobility Radeon also provides the video technology called Avivo HD that provides an on board 7.1 sound chip. The graphics solution also features a 2nd generation Unified Video Decoder that supports full bitstream decoding of H.264/MPEG-4 AVC and VC-1 streams. The 4570 graphics unit is capable of handling all video tasks including HD video decoding.
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