Back at CES 2022, which was held in Las Vegas earlier in the year, AMD announced that its new Zen 4 core would be out sometime in the second half of 22. In late August, AMD unveiled its Ryzen 7000 series desktop processors, with four SKUs targeting different product segments. Today, AMD officially launched Ryzen 7000 with the Ryzen 9 7950X representing the brand for performance leadership in an x86 processor for desktops.
On paper, the AMD Ryzen 9 7950X is a 16C/32T behemoth that takes over the overall performance leadership in desktop computing. Their entry into the market is the Ryzen 5 7600X, which has 6C/12T and takes all the benefits of the flagship in a sleeker and more affordable chip-based package. AMD is pinning its hopes on bringing back that all-important performance crown with Zen 4 with its new architecture based on TSMC’s 5nm process; prepare for battle. We’ve detailed what Zen 4 brings to the table regarding the new microarchitecture and tested the new Ryzen 9 7950X and Ryzen 5 7600X through our CPU suite.
New Zen 4 Core on TSMC 5nm, Boost up to 5.7 GHz!!
The latest Ryzen 7000 series processors are direct replacements of the Ryzen 5000 series, with a new chipset and a redesigned microarchitecture, both on the front and back of the silicon design.
As it stands at the time of writing, AMD is launching four processors based on its 5nm Zen 4 core, ranging from a 6C/12T part to 16C/32T; as with the previous launches of the Ryzen 5000 (Zen 3) and Ryzen 3000 series (Zen 2).
The Ryzen 9 7950X: 16 cores, 32 threads, new 170W TDP: $699
Looking at the specs of the four AMD Ryzen 7000 processors, the top SKU is the Ryzen 9 7950X, with sixteen Zen 4 cores (two threads per core, 32T) and two eight-core 5nm CCDs. The Ryzen 9 7950X has a base frequency of 4.5GHz, with a single-core turbo frequency of 5.7GHz, which in its current form is the fastest CPU core in the world for today’s desktop space.
AMD has also given the Ryzen 9 7950X a larger TDP of 170W, which is an increase of 65W (170W vs 105W) compared to its Ryzen 5000 counterpart, the 5950X. This increase in overall power has allowed AMD to improve its frequencies and give the Precision Boost Overdrive overclocking technology more room to breathe; more power usually means more performance.
The Ryzen 9 7900X, Ryzen 7 7700X and Ryzen 5 7600X
Moving up one of the stacks is the Ryzen 9 7900X, a 12C/24T and 170W TDP part; it has a higher base frequency than the 7950X of 4.7GHz, but with a slightly lower boost frequency to 5.6GHz. AMD has launched a Ryzen 7 component designed for mid-range desktop computers, via the Ryzen 7 7700X, an 8C/16T SKU, with a single core boost frequency of up to 5.4 GHz, with a base frequency of 4.5 GHz .
Targeting the entry-level segment, the Ryzen 5 7600X seems to benefit from offering 6C/12T with the previous series’ max TDP of 105W, at a reasonable price. The Ryzen 5 7600X has a base frequency of 4.7GHz, with a modest (compared to Ryzen 9) boost frequency on a single core of 5.3GHz.
|AMD Ryzen 7000 vs Ryzen 5000|
|Ryzen 9 7950X||16C / 32T||4.5GHz||5.7GHz||DDR5-5200||64MB||170 W||$699|
|Ryzen 9 5950X||16C / 32T||3.4GHz||4.9GHz||DDR4-3200||64MB||105 W||$799|
|Ryzen 9 7900X||12C / 24T||4.7GHz||5.6GHz||DDR5-5200||64MB||170 W||$549|
|Ryzen 9 5900X||12C / 24T||3.7GHz||4.8GHz||DDR4-3200||64MB||105 W||$549|
|Ryzen 7 7700X||8C / 16T||4.5GHz||5.4GHz||DDR5-5200||32MB||105 W||$399|
|Ryzen 7 5800X||8C / 16T||3.8GHz||4.7GHz||DDR4-3200||32MB||105 W||$449|
|Ryzen 5 7600X||6C / 12T||4.7GHz||5.3GHz||DDR5-5200||32MB||105 W||$299|
|Ryzen 5 5600X||6C / 12T||3.7GHz||4.6GHz||DDR4-3200||32MB||65 W||$299|
By comparing apples to apples, so to speak, from the new Zen 4 generation to previous Zen 3 generations with similar products, Ryzen 7000 has made some big overall improvements to the chips’ capabilities. Starting at the highest level, the Ryzen 9 7950X has a massive improvement in base and boost frequencies, making the Zen 4’s efficiency better than any previous Ryzen generation.
This has been possible in part due to superior energy efficiency, as the Zen 4 article is largely a Zen 3 refinement, but produced on TSMC’s 5 nm process node (from TSMC 7 nm). This efficiency allowed AMD to increase clock speeds without breaking the power bank, with the 105W TDP 7700X seeing a 700MHz improvement with no change in TDP. Coupled with a 13% TDP improvement and the Ryzen 7000 series chips, some significant single-threaded performance gains can be achieved. And multi-threaded performance isn’t left out in the cold either; by increasing their top TDP to 170W, AMD is able to keep the CPU cores on their 12C and 16C parts with higher sustained turbo clocks, delivering much better performance there too.
Of course, one of the main arguments here is that more power equals more, which is true on the part of the Ryzen 7000 series. Ryzen 7000’s TJ Max for its Precision Boost Overdrive technology is at 95°C, meaning the CPU will use all the available thermal headroom to maximize performance.
While this can be overclocked with manual overclocking, this opens up the maximum TJ Max to 115°C. It’s important to note that users will have to use more premium and aggressive cooling types to squeeze every last drop of performance out of Zen 4. The fact that Ryzen 7000 gets hot is explained by AMD by their design choices and implementations. As such, they have chosen not to bundle their own CPU coolers with the retail packages, but instead refer buyers to reasonably powerful third-party coolers.
New AM5 socket: AM4 coolers also support AM5
AMD has also switched to a new chipset for Ryzen 7000 called AM5. Along with AM5 comes a new socket, the LGA1718. Now what’s interesting is that AMD has indicated that most AM4 socket coolers will support the new LGA1718 socket on AM5; this is great for keeping the compatibility of the previous generation.
This also means AM4 is now a thing of the past, although it’s incredible at the moment, as is support with the cheaper DDR4. AMD has, of course, moved to support DDR5 memory, with JEDEC settings for all four CPUs set to DDR5-5200; an improvement in Intel’s 12th generation Core series support for DDR5-4800.
AMD has unveiled four new chipsets, two Extreme variants called X670E and B650E, with two regular chipsets, aptly named X670 and B650, original and simple. The top-level X670E series will feature both PCIe 5.0 lanes and the top PEG slot, with support for PCIe 5.0 storage devices expected in November 2022. As for the regular X670 chipset, PCIe 5.0 to the PEG slot is optional, not required, like on the X670E.
The B650 chipsets are designed to be more affordable and therefore only have PCIe 4.0 lanes to the PEG slot. However, they have at least one PCIe 5.0 x4 storage slot. The B650E is reserved for those lower end boards that want to include PCIe 5.0 in the graphics card, although users who want to use PCIe 5.0 support should opt for, X670E; better boards, better controllers and better specs.
New I/O Die: TSMC 6nm for Ryzen 7000
As we’ve seen before from the Ryzen 5000 series, AMD uses chiplet packaging, with two core complex dies (CCD) on the top SKU, with an I/O chip hosting all PCIe 5.0, the integrated memory controller (IMC). , and new to Ryzen 7000, two CUs of AMD’s rDNA 2 integrated graphics card. Some of the key benefits of AMD’s new 6nm TSMC I/O chip are: more transistors, better production-stage efficiency, and ultimately, most importantly, from an efficiency standpoint, lower overall power consumption.
It’s time to dive deep into all of AMD’s new improvements and changes to its Zen 4 microarchitecture. On the following pages we will discuss the following:
- Ryzen 7000 Review: Comparing Ryzen 7000 to Ryzen 5000 Specs
- Socket AM5: The New Platform for Consumers AMD
- More I/O for AM5: PCIe 5, additional PCIe lanes and more displays
- AM5 chipsets: X670 and B650, built by ASMedia
- DDR5 & AMD EXPO Memory: Memory Overclocking, AMD’s Way
- Ryzen 7000 I/O Die: Finally TSMC and Integrated Graphics
- Zen 4 architecture: energy efficiency, performance and new instructions
- Zen 4 Execution Pipeline: Familiar Pipes With More Caching
- Test bed and setup
- Core-to-core latency
- SPEC2017 Single-threaded results
- SPEC2017 Multi-threaded results
- CPU benchmark performance: power, internet and science
- CPU benchmark performance: simulation and coding
- CPU benchmark performance: display
- CPU benchmark performance: older tests
- Gaming Performance: 720p and below
- Game performance: 1080p
- Game performance: 4K