Tuesday, May 19th 2020
AMD Backpedals, Zen 3 Support Coming to B450 and X470
AMD backpedaled on dropping support for its future "Zen 3" processors on AMD 400-series chipset motherboards. The company will work with its motherboard partners in integrating "Zen 3" processor support on certain beta versions of motherboard BIOSes. AMD also detailed how it plans to go about it. The said BIOS will be a one-way ticket to using "Zen 3" processors while losing support for all older microarchitectures.
The way it works is the motherboard manufacturer will integrate the Zen 3-only AGESA with a firmware that can squeeze into a 16 MB ROM. They may also choose to conserve ROM space in areas such as the UEFI setup program, which may not correspond with the motherboard's original feature-set. This is essentially similar to how MSI integrated "Zen 2" support on some of its older motherboards with 16 MB ROMs, by slimming down its UEFI setup program.
Since the BIOS will chop support for all older processors, to prevent motherboard RMA chaos for manufacturers, they will set up a system that issues BIOS updates only to customers upon verifying that they actually own a "Zen 3" processor. The way we imagine this works would be similar to game bundles (retailer issues a BIOS update token along with the processor, or a scratch card next to the case badge inside the PIB). Flashing a 400-series chipset motherboard will be a delicate process. You will have to use the USB BIOS flashback feature (which luckily is well proliferated on the AM4 motherboard ecosystem). Alternatively, you should be able to begin the BIOS flashing process with an older processor installed, and immediately switch over to the newer Zen 3 processor once the flashing process is complete.
Also, the beta BIOS updates won't be immediately available, but rather when "Zen 3" processors are readily available in all the markets AMD serves. AMD reiterates, that "Zen 3" will be the final microarchitecture 400-series chipsets support, recommending that the processors will work best with a 500-series chipset motherboard for best performance and support for the latest features.
Controversy erupted when AMD revealed in its B550 chipset slide deck that 400-series (and older) chipsets won't support "Zen 3," which users felt betrayed AMD's promise of platform support running into 2020. In the absence of B550, many value-conscious buyers paired their brand new 3rd generation Ryzen processors with some of the more premium B450 chipset motherboards, in hopes of an upgrade path to "Zen 3."
The way it works is the motherboard manufacturer will integrate the Zen 3-only AGESA with a firmware that can squeeze into a 16 MB ROM. They may also choose to conserve ROM space in areas such as the UEFI setup program, which may not correspond with the motherboard's original feature-set. This is essentially similar to how MSI integrated "Zen 2" support on some of its older motherboards with 16 MB ROMs, by slimming down its UEFI setup program.
Also, the beta BIOS updates won't be immediately available, but rather when "Zen 3" processors are readily available in all the markets AMD serves. AMD reiterates, that "Zen 3" will be the final microarchitecture 400-series chipsets support, recommending that the processors will work best with a 500-series chipset motherboard for best performance and support for the latest features.
Controversy erupted when AMD revealed in its B550 chipset slide deck that 400-series (and older) chipsets won't support "Zen 3," which users felt betrayed AMD's promise of platform support running into 2020. In the absence of B550, many value-conscious buyers paired their brand new 3rd generation Ryzen processors with some of the more premium B450 chipset motherboards, in hopes of an upgrade path to "Zen 3."
93 Comments on AMD Backpedals, Zen 3 Support Coming to B450 and X470
A lot of things has slowed down the last months, AMD sales is not on of them, if Mindfactory sales are of any indication. I know, just one big store in one country.
More than three times as many CPU's sold in one month compared to a year ago, and nine months since the last Ryzen launch. Not bad.
Compare all the Intel CPU's sold last month with the 3600 alone, yeah that's less than half the amount..
Or have a look at Amazon, would like to see the numbers tho, this is less informative than the last one. I always thought USA were more pro Intel than Germany, but again, this doesn't tell us much.
$316 for an E6600
Further 4c/4t i5 were just above $200 though (iirc)
www.anandtech.com/show/2045/2The FX and the X6800 were more like halo products I guess. Like I said, Conroe wasn't cheap, but it was so worth the price it had.
If you want to link budget dual-core conroe, at $316 you need to compare to the competition at the time, which would have been the new (at the time) AM2 Athlon 64 X2 line - and back then you were getting similar IPC, core counts, clockspeeds, and pricing from both AMD and Intel.
This article acknowledges that Intel had to massively slash prices to "pull a conroe" as R0H1T called it:
www.anandtech.com/show/2045/2
Though I would say that they didn't massively undercut AMD, they massively undercut their previous product stack, obsoleting the entire Pentium D line overnight in order to match AMD.
Like
you@Mats said, Conroe wasn't cheap overall. It was about bang for the buck."Zen 2" CPUs are being refreshed with higher clock speed.
www.tweaktown.com/reviews/8612/asus-crosshair-vii-hero-amd-x470-motherboard-review/index4.html