Skip to main content Tech Radar Pro Tech Radar Gaming Tech Radar Pro TechRadar the business technology experts Search TechRadar View Profile België (Nederlands) Deutschland North America US (English) Australasia New Zealand Expert Insights Website builders Web hosting Best website builder Best web hosting Best office chairs Best antivirus Expert Insights Recommended reading AI chip war heats up as AMD unveils its Nvidia Blackwell competitor Oracle is buying 30,000 of AMD’s new Instinct MI355X AI accelerator Another Ryzen 395 workstation PC launches with 128GB of RAM and yes, it is squarely aimed at AI professionals (and Nvidia's DGX Spark) Return of the OG? AMD unveils Radeon AI Pro R9700, now a workstation-class GPU with 32GB GDDR6 Gigabyte jumps on lucrative AI bandwagon with Threadripper-powered workstation, but oddly claims it is a gaming PC 12th mini workstation PC with AMD's flagship AI CPU announced - but I don't understand why Dell, Asus, and MSI haven't released one yet AMD has a problem: Chinese vendor goes rogue and puts Ryzen AI CPUs in server racks instead of EPYC processors AMD unveils puzzling new MI355X AI GPU as it acknowledges there won't be any AI APU for now Wayne Williams 18 June 2025 AMD claims 1.2X-1.3X inference lead over Nvidia's B200 and GB200 offerings When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. (Image credit: AMD) You may also like MI355X leads AMD's new MI350 Series with 288GB memory and full liquid-cooled performance AMD drops APU integration, focusing on rack-scale GPU flexibility FP6 and FP4 data types highlight MI355X’s inference-optimized design choices AMD has unveiled its new MI350X and MI355X GPUs for AI workloads at its 2025 Advancing AI event, offering two options built on its latest CDNA 4 architecture. While both share a common platform, the MI355X stands apart as the higher-performance, liquid-cooled variant designed for demanding, large-scale deployments. The MI355X supports up to 128 GPUs per rack and delivers high throughput for both training and inference workloads. It features 288GB of HBM3E memory and 8TB/s memory bandwidth. You may like AI chip war heats up as AMD unveils its Nvidia Blackwell competitor Oracle is buying 30,000 of AMD’s new Instinct MI355X AI accelerator Another Ryzen 395 workstation PC launches with 128GB of RAM and yes, it is squarely aimed at AI professionals (and Nvidia's DGX Spark) GPU-only design AMD claims the MI355X delivers up to 4 times the AI compute and 35 times the inference performance of its previous generation, thanks to architectural improvements and a move to TSMC’s N3P process. Inside, the chip includes eight compute dies with 256 active compute units and a total of 185 billion transistors, marking a 21% increase over the prior model. Each die connects through redesigned I/O tiles, reduced from four to two, to double internal bandwidth while lowering power consumption. The MI355X is a GPU-only design, dropping the CPU-GPU APU approach used in the MI300A. AMD says this decision better supports modular deployment and rack-scale flexibility. It connects to the host via a PCIe 5.0 x16 interface and communicates with peer GPUs using seven Infinity Fabric links, reaching over 1TB/s in GPU-to-GPU bandwidth. Are you a pro? Subscribe to our newsletter Sign up to the TechRadar Pro newsletter to get all the top news, opinion, features and guidance your business needs to succeed! Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsorsBy submitting your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over. Each HBM stack pairs with 32MB of Infinity Cache, and the architecture supports newer, lower-precision formats like FP4 and FP6. The MI355X runs FP6 operations at FP4 rates, a feature AMD highlights as beneficial for inference-heavy workloads. It also offers 1.6 times the HBM3E memory capacity of Nvidia’s GB200 and B200, although memory bandwidth remains similar. AMD claims a 1.2x to 1.3x inference performance lead over Nvidia’s top products. The GPU draws up to 1,400W in its liquid-cooled form, delivering higher performance density per rack. AMD says this improves TCO by allowing users to scale compute without expanding physical footprint. The chip fits into standard OAM modules and is compatible with UBB platform servers, speeding up deployment. “The world of AI isn’t slowing down - and neither are we, " said Vamsi Boppana, SVP, AI Group. "At AMD, we’re not just keeping pace, we’re setting the bar. Our customers are demanding real, deployable solutions that scale, and that’s exactly what we’re delivering with the AMD Instinct MI350 Series. With cutting-edge performance, massive memory bandwidth, and flexible, open infrastructure, we’re empowering innovators across industries to go faster, scale smarter, and build what’s next.” AMD plans to launch its Instinct MI400 series in 2026. You may also like AMD kills quad core server CPU from its server line-up AMD launches puzzling new graphics card that will absolutely not appeal to gamers AMD set to launch new Radeon Pro W9000 workstation GPU Wayne Williams Social Links Navigation Wayne Williams is a freelancer writing news for TechRadar Pro. He has been writing about computers, technology, and the web for 30 years. In that time he wrote for most of the UK’s PC magazines, and launched, edited and published a number of them too. You must confirm your public display name before commenting Please logout and then login again, you will then be prompted to enter your display name. AI chip war heats up as AMD unveils its Nvidia Blackwell competitor Oracle is buying 30,000 of AMD’s new Instinct MI355X AI accelerator Another Ryzen 395 workstation PC launches with 128GB of RAM and yes, it is squarely aimed at AI professionals (and Nvidia's DGX Spark) Return of the OG? AMD unveils Radeon AI Pro R9700, now a workstation-class GPU with 32GB GDDR6 Gigabyte jumps on lucrative AI bandwagon with Threadripper-powered workstation, but oddly claims it is a gaming PC 12th mini workstation PC with AMD's flagship AI CPU announced - but I don't understand why Dell, Asus, and MSI haven't released one yet Latest in Pro This 256GB RAM laptop could help you run programs at unbelievably fast speeds using this uncommon type of software AWS just hit a major cloud security milestone - and it could be a win-win for businesses everywhere Wix jumps on the vibe coding bandwagon with a new acquisition Top satellite communications company Viasat was also hit by Salt Typhoon – which shows just how widespread this massive attack was How Agentic AI transforms enterprise automation Top email hosting provider Cock.li hacked - over a million user records stolen Latest in News YouTube Shorts is getting a huge free Veo 3 upgrade that might just make me leave TikTok and CapCuts behind This Gerard Butler ‘popcorn thriller’ movie has become a high flyer on Netflix’s most-watched list, and it’s a great action flick Iranians asked to delete WhatsApp as internet restrictions intensify Windows 11 user has 30 years of 'irreplaceable photos and work' locked away in OneDrive - and Microsoft's silence is deafening Leica just launched its first-ever 35mm film for stunning monochrome shots – and I’m pleasantly surprised by the price AWS just hit a major cloud security milestone - and it could be a win-win for businesses everywhere LATEST ARTICLES Get it before it's gone - this is your chance to get the Galaxy S25 with unlimited data for just $30/mo Windows 11 user has 30 years of 'irreplaceable photos and work' locked away in OneDrive - and Microsoft's silence is deafening I tested 3 flagship mini-LED TVs – here’s the one I’d spend my own money on Top email hosting provider Cock.li hacked - over a million user records stolen Forget iPhone 17 Air – Samsung’s Galaxy S25 Edge has just received its first big price cut at Amazon TechRadar is part of Future US Inc, an international media group and leading digital publisher. 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