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The AMD Ryzen 9 3950X Review: 16 Cores on 7nm with PCIe 4.0 - harlan4096 - 15 November 19

Quote:
[Image: R93950X_678x452.JPEG]

Deciding between building a mainstream PC and a high-end desktop has historically been very clear cut: if budget is a concern, and you're interested in gaming, then typically a user looks to the mainstream. Otherwise, if a user is looking to do more professional high-compute work, then they look at the high-end desktop. Over the course of AMD’s recent run of high-core count Ryzen processors that line has blurred. This year, that line has disappeared. Even in 2016, mainstream CPUs used to top out at four cores: today they now top out at sixteen.

Does anyone need sixteen cores? Yes.

Does everyone need sixteen cores? No.

There are two fundamental drivers for most PC builders: cost and performance. Users who want a gaming machine are going to put their dollars in what gives them the best gaming performance. Users that want to edit video are going to look at content creation focused hardware. For those in the business world, the added incentive of extra performance is being able to offset or amortize those costs with an improved work rate. For the video editor needing a week per video, if they can spend +40% to reduce the render time by half then it can pay off over a short period of time.

As we move through 2019, users are doing more with their systems. Even at the low end, users might have double monitors where they game and watch their favourite streamer at the same time. High end users might reserve certain cores for different tasks, ensuring that there’s always some horsepower for the high-throughput tasks or virtual machines. Even though processors became ‘multi-core’ over a decade ago, we all as users are only recently adjusting how we do things to be more parallel, and the hardware is coming up to match our demands.

To that end, AMD’s Ryzen processors have been timely. The first generation mainstream Ryzen hardware in 2017 was a breath of fresh air in a market that had become sufficiently stale to be unexciting. With the color drained, AMD’s Ryzen enabled up to eight cores on a single CPU, and at the time aimed to throw its weight against Intel’s hardware in the class above. The new architecture didn’t push ahead on day one clock for clock, but it enabled a different paradigm at an obscenely reasonable price point.

Enter round 2, and Zen 2. Earlier this year AMD pushed again, this time putting 12 cores in the market for the same price as 8, or what had been the 4-core price point only three years prior. In three years we had triple the cores for the same price, and these cores also have more raw performance. The frequency wasn’t as high as the competition, but this was offset by that raw clock-for-clock throughput and ultimately where the competition now offered eight cores, AMD offered 12 at a much lower power consumption to boot.

Today is round 2 part 2: taking that same 12-core processor, and adding four more cores (for a 50% increase in price), and not only going after the best consumer processor Intel has to offer, but even the best high-end desktop processor. This is AMD squeezing Intel’s product portfolio like never before. What exactly is mainstream, anyway?

AMD’s new Ryzen 9 3950X has a suggested retail price of $749. For that AMD is advertising sixteen of its latest Zen 2 cores built on TSMC’s 7nm process, running at a 3.5 GHz base frequency and a 4.7 GHz single-core turbo frequency. The TDP of the chip is rated at 105 watts and it has 24 PCIe 4.0 lanes as well as dual memory channels that support up to 128 GB of DDR4-3200.

It wasn’t too long ago that this price range used to be the realm of AMD’s high-end desktop Threadripper processors, which started at 8 cores and we up to 32 cores. AMD is now shifting that paradigm as well, with this 16-core chip being at $749, and AMD’s next generation Threadripper 3000 processors starting at 24-cores at $1399. When AMD CEO Dr. Lisa Su was asked earlier this year what would happen given the drive to more cores for the mainstream processors, her response was ‘as Ryzen goes up, Threadripper goes up-up’. This is the realization of that.

It is worth noting that the price is likely to be higher at retail initially, as demand is expected to be high and stock levels haven’t been defined – given the popularity of the 12-core chip, it would seem that users wanting the mainstream platform always want the best.
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