The Arc A380 will top up the Radeon RX 6400, and Intel has rounded the parameters

Last week, Intel released the first desktop graphics from the Arc series. Although only low-end, only in China, for the OEM segment, the formal act of issue took place (perhaps more than formal, the non-reference card also appeared in regular sales, but at a price almost 4 times higher than recommended by Intel – about $ 500). On this occasion, the only performance information was compared to the position of the Arc A380 with the competition. The card should be “up to 25%” faster than the Radeon RX 6400. But “up” usually means the best situation, which admits that in the worst situation (and therefore on average) performance may be significantly different.

Probably really is. The 3DCenter editors the individual Intel performance for the tested games and found that, on average, the Arc A380 is 4% faster than the Radeon RX 6400. However, it has two more hooks. The first is that it is a measurement of Intel, which could select games and settings to suit its hardware.

Change memory specifications

The second reason is more fundamental: Intel released the Arc A380 specification on 16GHz GDDR6 on the 96-bit bus, which gives data throughput of 192 GB / s. But in a few days, the official specification changed to 15.5GHz GDDR6 with a throughput of 186 GB / s.

original and current Arc A380 specifications

Changing specifications after release is not exactly a commendable thing, although the difference is not significant. On the other hand, if Intel tested the card in one configuration, but the other will go on the market with> 3% slower memories, then even in relation to Intel’s own tests (according to which the Arc A380 should be 4% faster than the Radeon RX 6400) on the lead.

HDMI 2.1 2.0

Following the announcement of PCIe 4.0 support (instead of the expected PCIe 5.0), another special feature is HDMI support. In March, information emerged that Arc would probably only support HDMI 2.0b, not HDMI 2.1, which is needed, for example, to push 8K video (or anything above 4K @ 60 Hz) into a device equipped with an HDMI interface. However, HDMI 2.1 support appeared in the specifications at the time of release, so it looked like Intel had somehow resolved the situation and a newer standard would be supported.

However, the Arc A380 specifications from the Chinese company Gunnir lack information on HDMI 2.1 support and only talk about HDMI 2.0b. Intel responded by saying on Twitter: “We support HDMI 2.1 on the Intel Arc A380 GPU, but it’s up to the manufacturer [grafické karty]to put it into operation “. However, if HDMI 2.1 “commissioning” the card manufacturer requires other activities than soldering the HDMI connector, then it is clear that the GPU as such does not support this standard and requires a chip to convert the signal from DisplayPort 2.0 to HDMI 2.1. Which many low-end card manufacturers probably won’t do, because similar devices would disproportionately affect the price of the product in this price segment.

As a result, the benefits of AV1 hardware support, which Intel boasted about the introduction of Arc graphics cards, are somewhat eroding. The AV1 video format was developed primarily for video resolutions above 4K. However, if the graphics card does not allow the connection of more than 4K devices via HDMI (most TVs and projectors use HDMI), then in short, the Arc A380 cannot be understood as a multimedia living room solution for 5K / 8K video. Acceleration can be used for 4K video and lower, but its playback can handle even more modern x86 processors without a special accelerator.

The factual absence of HDMI 2.1 (which supports AMD’s Radeons and Nvidia’s GeForce released as early as 2020) shows the delays that the Arc Alchemist line is actually achieving and for what period it was planned at the time the specifications were closed.


Source: Diit.cz by diit.cz.

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