Gamers Nexus benchmarks the AMD Ryzen 9 7950X in its BIOS Eco Mode presets to measure performance trade-offs against power and heat savings.
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AMD Ryzen 7000 CPUs on Zen 4, including the R7 7700X, R5 7600X, R9 7900X, and Ryzen 9 7950X, have an optional "Eco Mode" feature in BIOS that can be enabled for power savings. There will be a cost to performance, naturally, but the goal is to minimize the negative trade-off and maximize the power savings (and reduction of heat). In this video, we're benchmarking the preset Eco Mode options (65W vs. 105W vs. Stock/170W) on an AMD Ryzen 9 7950X CPU. The tests mostly focus on a focused list of parts -- namely, the new Ryzen parts -- with a few showings vs. Intel's i9-13900K CPU.
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Learn about AMD Precision Boost Overdrive: youtube.com/watch?v=B7NzNi1xX_4
Learn about AMD TDP and what it means: youtube.com/watch?v=tL1F-qliSUk
Get the full charts from our latest CPU review (at time of publishing) over here: youtube.com/watch?v=todoXi1Y-PI
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RELATED PRODUCTS [Affiliate Links]
Intel i9-13900K on Amazon: geni.us/LVBD
Intel i5-13600K on Amazon: geni.us/sGMSK
AMD Ryzen 9 7950X on Amazon: geni.us/6X1RO
Intel Core i9-12900K on Amazon: geni.us/YAlrh9
AMD Ryzen 9 7900X on Amazon: geni.us/FIyuhcS
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AMD Ryzen 5 7600X on Amazon: geni.us/6AdNkw
Intel Core i7-12700K on Amazon: geni.us/MP2tSl
TIMESTAMPS
- Explaining AMD Eco Mode on Zen 4
- When You'd Use Eco Mode
- Precision Boost Overdrive vs. Eco Mode vs. PB2
- Eco Limits Defined
- TDP IS NOT POWER CONSUMPTION
- Benchmarks: Power Consumption All-Core
- Single-Core Power Consumption
- Frequency Changes (Eco Mode On vs. Off, 105W & 65W)
- Frequency Stability Over Time
- Thermal Test Setup
- Thermal Benchmarks (7950X Stock vs. Eco Mode)
- Power Efficiency Benchmarks
- Blender Render Speed Benchmarks
- Chromium Code Compile CPU Benchmarks (Eco Mode)
- File Compression & Decompression Testing
- Adobe Photoshop CPU Benchmarks (7950X 65W vs. 105W vs. Stock)
- Adobe Premiere CPU Benchmarks in AMD Eco Mode
- Gaming on Eco Mode Discussion
- GTA V Eco Mode Benchmarks on AMD Ryzen 7000
- CSGO AMD Zen 4 Eco Mode Benchmarks
- Far Cry 6 CPU Benchmarks
- Final Fantasy XIV CPU Benchmarks in Eco Mode
- Additional Gaming Benchmarks
- Conclusion: Eco Mode on AMD Ryzen
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Why it's here
3 people recommend this
What people say. Recommended for its detailed benchmarks showing that AMD's Eco Mode significantly reduces power draw with minimal performance loss.
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On “PC CPU Shipments See Steepest Decline in 30 Years”
> Add to all of that, this latest batch of CPUs are just stupid power hungry - like 240w+ under load Eco mode is a thing for AMD CPUs. There is no point really in not using it by default - benefits are very marginal with power cost being disproportionally huge. And AMD are doing it more for marketing reasons to gain some single digit percentages in benchmarks. So just enable it and enjoy way more reasonable and efficient power usage with basically almost the same performance. See some details here: link to this video
On “First 96-Core AMD Zen 4 Threadripper Tests Show Utter Domination over Intel”
I have a 16-core Ryzen 7950X that I run in "eco mode 105W". This delivers performance close to an Intel 13900K but at less than half the power. It's also much easier to cool and get a quiet PC without water cooling and enthusiast shenanigans (de-lidding, etc.) I don't know if the Zen 4 Threadrippers can be similarly run with a power limit. If they can, I'd expect much better efficiency than whatever Intel offers. This has eco mode benchmarks: link to this video
On “First 96-Core AMD Zen 4 Threadripper Tests Show Utter Domination over Intel”
Yeah I am definitely not a fan of Intel/AMD/and even Nvidia who will completely push power to stupid levels just to get less than an extra 10% performance Gamers Nexus did a video earlier this year comparing the 7950x at different eco modes and they found that putting the 7950x at a 105 watt eco made drop the performance around 5% but shaved almost 100 watts off of power. heres the link to the video link to this video I know why these companies do it and im lucky electricity isnt too expensive in my area but i rather shave 100 + watts of heat being dumped into my room (especially in the summer months)
Yes, if you overclock the 7590x, ignoring any "system tuning" you can get a better GB6. If we could overclock the M3 Max, we could achieve the same. The performance loss of the 7590X in 65W eco mode isn't 10-20% compared to stock. It's more like 20-30%: link to this video If we use an overlocked 7590X – ignored the additional power draw – in 65W eco mode, using a rounded up 22K GB6 score, and assume a 20% performance loss (~17600 GB6), the 7950X, at 40% higher TDP than the M3 Max, is still 10% slower than the M3 Max. Which is especially insane considering the 7950X is a desktop-class CPU, and the M3 Max is sitting in a laptop.
