TheIntel HD Graphics 4000(GT2) is a processor graphics thẻ that is included in theIvy Bridgeprocessors of 2012 (3rd generation of core, e.g. Vi xử lý core i7-3770). The base clock can be automatically overclocked using Turbo Boost technology. Depending on the processor model, the base and turbo clock rate may differ greatly resulting in different graphics performance of ULV parts compared lớn high-end desktop and máy tính quad-core parts.
Compared to theIntel HD Graphics 3000 in Sandy Bridge CPUs, the HD 4000 thẻ was completely redesigned and offers improvedDirectX 11capable shaders, Hardware Tessellation, a dedicated màn chơi 3 cache (before the Last màn chơi Cache LLC of the CPU) và DirectCompute support. The IPC (instructions per clock) can therefore be even 2x as fast as with Sandy Bridge and overall up to lớn 60% more performance (3DMark Vantage) should be possible.
First benchmarks position the HD Graphics 4000 (in a fast quad chip core desktop CPU) on a level with a dedicatedNvidia GeForce GT 330Mand therefore above the AMD processor graphicsRadeon HD 6620G. In ourextensive tests with games the HD Graphics 4000was able khổng lồ beat the HD 6620G in a fast vi xử lý core i7-3820QM by about 15%. In the slower i7-3610QM & a dual core i5 it was on a similar màn chơi as the 6620G. Therefore, casual gamers that wont mind reducing the unique settings in high over games, may be happy with the performance of the HD Graphics 4000. Beware, that the HD Graphics 4000 is used with different clock speeds depending on the CPU model. The ULV CPUs (Core ix-3xx7U) for example feature lower clock speeds và cant maintain the Turbo frequency as good as the 35 - 55 Watt models. Therefore, the ULV version is about 30% slower on average.
A speciality of the Ivy Bridge GPUs is that 4x MSAA is supported in hardware now. However, 2x is only supported through software. The algorithm to tư vấn 2x is going through the 4x pipeline with a software algorithm, so performance is similar to lớn 4x MSAA.
The integrated đoạn phim decoder calledMulti Format Codec Engine (MFX) was also improved & should allow even simultaneus 4K video decoding.DXVAChecker lists MPEG2, VC1, WMV9, and H264 as supported codecs.QuickSyncfor fast transcoding of videos was also optimized for higher performance and better image quality.
Another new feature is the support for up to3 independent displays(depends on how the HD 4000 is used in the laptop - maybe only with a DisplayPort / eDP) as AMD offers with theirs Eyefinity tư vấn (up lớn 6 displays). DisplayPort 1.1 (max 2560x1600) & HDMI 1.4 (max 1920x1080 without hacks) are supported by the chip according to lớn Intel.
Due khổng lồ the22nm 3d Tri-Gateproduction process, the power nguồn consumption should be relatively low (the development was focused on performance per Watt). The TDP of the whole package (including processor và memory controller) varies between 18 Watt (ULV) up to lớn 45 Watt (mobile quad core) for the consumer laptop CPUs.