• Breaking News

    Tuesday, September 1, 2020

    Home Unlabelled Hardware support: [VideoCardz] NVIDIA GeForce RTX 3090 PCB pictured

    Hardware support: [VideoCardz] NVIDIA GeForce RTX 3090 PCB pictured

    September 01, 2020

    Hardware support: [VideoCardz] NVIDIA GeForce RTX 3090 PCB pictured

    [VideoCardz] NVIDIA GeForce RTX 3090 PCB pictured

    Posted: 31 Aug 2020 10:43 PM PDT

    Updated Intel MKL removes workaround allowing faster code path on AMD cpus.

    Posted: 31 Aug 2020 04:56 PM PDT

    Thank you to u/CrazyAsparagus for originally posting this! Can't crosspost some of his post here.

    "Generally, I see a straight up loss of 15-20% performance, due to Intel intentionally crippling software on AMD CPUs. (Other people have claimed much higher losses in other workloads)."

    For this library Intel only officially claims support for Intel products, and legally I believe it wouldn't be outside of their rights to do this. How viable are alternatives like OpenBLAS or AMD's BLIS? Is MKL as ubiquitous as CUDA for example?

    submitted by /u/itsjust_khris
    [link] [comments]

    [Gamers Nexus] Wasting Money on Power Supplies: How Many Watts You Need for a PC PSU (2020)

    Posted: 31 Aug 2020 11:03 PM PDT

    [Videocardz] Inno3D GeForce RTX 30 series have been pictured

    Posted: 01 Sep 2020 12:13 AM PDT

    NVIDIA Fully Absorbs Mellanox Technologies, Now Called NVIDIA Networking

    Posted: 31 Aug 2020 05:56 AM PDT

    Rumor: Tiger Lake's IPC gains are small due to memory latency/bandwidth bottle necking.

    Posted: 31 Aug 2020 02:26 PM PDT

    From JZWSVIC and translated via Google:

    Is tigerlake basically improved compared to icelake IPC?

    Recently, there have been many rumors that because the performance of 1165G7 is converted to 1065G7, the increase is almost the same as the frequency increase, so it is said that Tigerlake does not have an IPC increase. This statement is too simple and crude

    1. Single-threaded performance is related to memory access latency. The part related to the single-threaded memory bandwidth. In fact, the performance improvement of these parts is not related to the core frequency to a certain extent. It is more related to the improvement of memory access performance. For example, some projects have a very high correlation with the L2 hit rate. High, the new L2 can be 15% more than the past improvement brought by the elimination of the memory bottleneck, but in fact 1165G7 has a 20% increase in frequency compared to 1065G7, so even if the final performance of 1165G7 is 18% higher than 1065G7 , Will be drawn to the conclusion of Tigerlake performance regression, which is obviously unscientific.

    2. The memory support of icelake and tigerlake has changed very little. For example, SO-DIMM is 3200C22 memory, so sometimes the bandwidth is similar, which causes some memory bandwidth related tests to not show enough improvement For example, in the GB5 AES project, 1165G7 is only less than 10% higher than 1065G7, which is obviously caused by a bandwidth bottleneck, and geekbench lacks sufficient memory access optimization for this architecture, and on linpack Sometimes you will see a very different situation. Even with 4 cores running in parallel and high bandwidth requirements, 1165G7 can run 95% of the theoretical value of the corresponding frequency in 3200 memory. This is very rare. This is because the Intel version of linpack targets The design of its own cache and memory, the size of the matrix LU decomposition, and the optimization of broadcast communication are very targeted, which can better utilize the characteristics of the architecture.

    3. In the end, we can see a performance increase close to the frequency increase in the comprehensive single-threaded performance test. This is not because the tigerlake architecture IPC has not improved, but because the comprehensive IPC test has a certain amount of memory access bottleneck projects. The improvement of the cache is not necessarily guaranteed. Therefore, the performance improvement is greater than the frequency increase. After all, the frequency of icelake is relatively low. If it is in the low-frequency version of ES, it may be easier for Tigerlake to see the performance improvement of the same frequency.

    https://www.zhihu.com/people/jzwsvic

    submitted by /u/FriedMoose420
    [link] [comments]

    Apple Reportedly Preparing 5nm GPUs For 2H 2021

    Posted: 31 Aug 2020 05:56 AM PDT

    Minimum number of ray bounces required for photorealism in games?

    Posted: 31 Aug 2020 12:49 PM PDT

    Maybe some 3D artists can speak about this from experience.

    I was watching some RDR2 gameplay on JackBlack's channel when I noticed in this shot that Arthur Morgan's body isn't casting a shadow on the table, and the table isn't casting some of its color onto the guy's body. And so the shot looks "flat" in an otherwise beautiful game.

    Now I know RDR2 does not have ray tracing, but it got me thinking, what's the minimum number ray bounces that devs can get away with to achieve photorealism? And will it be achievable on next-gen PC (both AMD and Nvidia GPUs) and console hardware?

    (I heard ray tracing is super memory intensive and that performance drops exponentially with more bounces?)

    While we're at it, let's also talk about object self-shadowing, minimum ray casts (taking de-noising into account) and some other techniques like global illumination, SSR and voxel cone tracing and how they can play into achieving photo-realism more efficiently.

    EDIT: If photorealism is too hard/impossible for next-gen, could we maybe match Pixar movies in visual quality? The new Ratchet and Clank game does well, but it is very obviously not ray traced.

    submitted by /u/batman007619
    [link] [comments]

    Intel Iris Xe GPU Spotted With An Impressive 1650 MHz Overclock, Launching With Tiger Lake CPUs This Week

    Posted: 31 Aug 2020 08:11 AM PDT

    (Igor's Lab) With NVIDIA and DLSS 2.0 on the eco-trip from Turing to Ampere? Saving power against the trend is more than a nice gimmick!

    Posted: 31 Aug 2020 08:35 AM PDT

    (Buildzoid/AHOC)mobo PCB Breakdown: ASUS ROG Maximus XII Apex

    Posted: 31 Aug 2020 09:51 AM PDT

    Is there any room for a RTX 3090 Super / Ti?

    Posted: 31 Aug 2020 04:57 AM PDT

    Considering the GA102-300 is not the full chip I understand there can be a Titan card. But is there any room for a super/ti refresh?

    I am asking because I wouldn't like to get a 3090 with a sensible upgrade incoming in a few months.

    submitted by /u/pacosteles
    [link] [comments]

    Lenovo Brings Haptic Feedback, Ultrasonic Fingerprint Reader to Yoga Laptops

    Posted: 31 Aug 2020 07:14 AM PDT
    Read more
    at

    No comments:

    Post a Comment