| Processor | 4.6 GHz ryzen_9_3900x |
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 | AMD Ryzen 9 3950X 16-Core, 32-Thread Unlocked Desktop Processor | AMD Ryzen 7 3800X 8-Core, 16-Thread Unlocked Desktop Processor with Wraith Prism LED Cooler | AMD Ryzen 7 3700X 8-Core, 16-Thread Unlocked Desktop Processor with Wraith Prism LED Cooler | AMD Ryzen 5 3600 6-Core, 12-Thread Unlocked Desktop Processor with Wraith Stealth Cooler | |
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| Customer Rating | (11929) | (2351) | (7239) | (24395) | (38246) |
| Price | $524.99 | $775.00 | $289.99 | $309.99 | $188.95 |
| Sold By | Micom Pro | Maestro Technology LLC | PC Parts Sales | Wayfurb Inc. | DealsPro1 |
| CPU Model | Ryzen 9 3900X | Ryzen 9 3950X | AMD Ryzen 7 | AMD Ryzen 7 | Ryzen 5 3600 |
| CPU Model Manufacturer | AMD | AMD | AMD | AMD | AMD |
| CPU Socket | Socket AM4 | Socket AM4 | Socket AM4 | Socket AM4 | Socket AM4 |
| CPU Speed | 4.6 GHz | 4.7 GHz | 4.5 GHz | 4.4 GHz | 4.2 GHz |
| Item Dimensions | 1.57 x 1.57 x 0.24 inches | 1.57 x 1.57 x 0.24 inches | 1.57 x 1.57 x 0.24 inches | 1.57 x 1.57 x 0.24 inches | 1.57 x 1.57 x 0.24 inches |
| Item Weight | 1.60 ounces | 6.07 ounces | 1.40 lbs | 1.40 lbs | 1.60 ounces |
| Model Year | 2019 | 2019 | 2019 | 2019 | 2019 |
| Processor Count | 12 | 16 | 8 | 8 | 6 |
| Wattage | 105 watts | 105 watts | 105 watts | 65 watts | 65 watts |
Customer Questions & Answers
From the manufacturer
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AMD SenseMI TechnologyWith AMD SenseMI technology, Ryzen processors use true machine intelligence to accelerate performance. |
Zen Core ArchitectureImproved energy efficiency, higher clock speeds and more cores than ever before. |
AMD Ryzen Master UtilityThe simple and powerful overclocking utility for AMD Ryzen processors. |
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Precision Boost 2AMD’s intelligent processors have a sophisticated set of sensors designed to analyze conditions inside your PC and make the “go faster” decision as often as possible. |
AMD GameCacheUp to twice the cache of previous generations, GameCache is designed to reduce memory latency for higher frame rates in top titles. |
One Click OverclockingPrecision Boost Overdrive uses your motherboard’s robust design to boost clock speeds higher and longer, and lets you overclock 4 at the touch of a button. |
Customer reviews
Intel's coffin has arrived.Coming from an i5-7600k never have a been able to multitask so smoothly with an Intel CPU.
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Top reviews from the United States
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Reviewed in the United States on July 9, 2019
Style: ProcessorVerified Purchase
Phenomenal CPU, absolutely crushes Intel's 9900k (which is roughly the same price) at most tasks. Intel does have a slightly higher base clock speed so it has a slight edge on single core benchmarks - though this 3900x has plenty of room for overclocking and exceeds the Intel at single core tasks for the same clock speed.
The extra cores and threads on this CPU set it above the rest for real-world tests and multicore benchmarks. Excellent CPU for streaming, gaming, video editing/rendering, and just about anything else.
The only reason not to buy this is if you are going to wait for the 3950x in September, which has 2 more cores and 4 more threads for $250 more.
I highly recommend this CPU, and also suggest pairing it with one of the new x570 motherboards - I have the ASUS Crosshair VIII Hero myself and love it.
Update: Cable management is important of course. CPU cooler that ships with this CPU is solid, haven't had any issues so far.
The extra cores and threads on this CPU set it above the rest for real-world tests and multicore benchmarks. Excellent CPU for streaming, gaming, video editing/rendering, and just about anything else.
The only reason not to buy this is if you are going to wait for the 3950x in September, which has 2 more cores and 4 more threads for $250 more.
I highly recommend this CPU, and also suggest pairing it with one of the new x570 motherboards - I have the ASUS Crosshair VIII Hero myself and love it.
Update: Cable management is important of course. CPU cooler that ships with this CPU is solid, haven't had any issues so far.
Images in this review
Reviewed in the United States on July 13, 2019
The 3900X... well, its just insane. As you can see I'm not using it on a desktop, so no gaming reviews here :-). I actually have it in a rack doing bulk application builds, and in that regard the performance is really bordering on the insane side. It wipes the floor with whatever I throw at it. I have it in an ASRock B450M-PRO4 motherboard which worked great after (of course) I updated the BIOS.
In this particular case I tested the CPU to around 150W on the socket (200W at the wall) and it performed excellently. For my particular use-case, though, since I stuffed it into a 2U rack mount with a low-profile 65W air cooler, I decided that things were a little too toasty so I used the BIOS setup to limit the socket to 100W (150W at the wall). The CPU is still a beast even limited in that fashion. The 3900X at 100W socket (150W wall) is twice as fast as my 2700X is at 190W (wall), and ever faster if I let it stretch its legs. It blows away everything I have except my TR2990WX. I am very, very impressed.
I will throw in a few provisios here for early adopters. First, if you intend to stuff a Zen 2 CPU into an older motherboard remember that you have to update the BIOS first. Second, the BIOSes are really early and some motherboard vendors haven't gotten updates out with the latest AMD AGESA, so if you are an early adopter on an older motherboard be prepared to face some difficulty. I didn't have any problem with the B450M-PRO4 that I stuffed this 3900X into but I am having trouble POSTing a 3600X on a B350 Gaming-itx/ac. It's clearly just an early BIOS issue since once I do get it to POST successfully (takes a number of tries), the system is rock solid.
Third, I do NOT recommend that anyone try to overclock on these early BIOSes. Wait for the BIOSes to mature a bit more because trying to do it on these early BIOSes runs a real risk of burning your chip up.
Other than that, enjoy! It's an incredible CPU.
-Matt
Style: ProcessorVerified Purchase
Insane performance even with reduced power cap set
Reviewed in the United States on July 13, 2019
I managed to get it from Amazon by watch-dogging the page, but it took some effort because it barely stays up for a few minutes before people snap whatever stock there is up. Hopefully the supply pipe will iron itself out so others aren't left just staring at pictures!Reviewed in the United States on July 13, 2019
The 3900X... well, its just insane. As you can see I'm not using it on a desktop, so no gaming reviews here :-). I actually have it in a rack doing bulk application builds, and in that regard the performance is really bordering on the insane side. It wipes the floor with whatever I throw at it. I have it in an ASRock B450M-PRO4 motherboard which worked great after (of course) I updated the BIOS.
In this particular case I tested the CPU to around 150W on the socket (200W at the wall) and it performed excellently. For my particular use-case, though, since I stuffed it into a 2U rack mount with a low-profile 65W air cooler, I decided that things were a little too toasty so I used the BIOS setup to limit the socket to 100W (150W at the wall). The CPU is still a beast even limited in that fashion. The 3900X at 100W socket (150W wall) is twice as fast as my 2700X is at 190W (wall), and ever faster if I let it stretch its legs. It blows away everything I have except my TR2990WX. I am very, very impressed.
I will throw in a few provisios here for early adopters. First, if you intend to stuff a Zen 2 CPU into an older motherboard remember that you have to update the BIOS first. Second, the BIOSes are really early and some motherboard vendors haven't gotten updates out with the latest AMD AGESA, so if you are an early adopter on an older motherboard be prepared to face some difficulty. I didn't have any problem with the B450M-PRO4 that I stuffed this 3900X into but I am having trouble POSTing a 3600X on a B350 Gaming-itx/ac. It's clearly just an early BIOS issue since once I do get it to POST successfully (takes a number of tries), the system is rock solid.
Third, I do NOT recommend that anyone try to overclock on these early BIOSes. Wait for the BIOSes to mature a bit more because trying to do it on these early BIOSes runs a real risk of burning your chip up.
Other than that, enjoy! It's an incredible CPU.
-Matt
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Top reviews from other countries
GD
Je me suis fais agressé au téléphone par le vendeur
Reviewed in France on November 30, 2019Style: ProcessorVerified Purchase
Rudolf Zemann
Sehr gute CPU, aber .....
Reviewed in Germany on December 11, 2019Style: ProcessorVerified Purchase
JLX
Rendimiento increible con ESXi 6.7, se puede usar como servidor en una pyme
Reviewed in Spain on October 24, 2019Style: ProcessorVerified Purchase
Rezensent
Sehr gute CPU, läuft auf X370, schwer zu kühlen, Upgrade lohnt sich nicht für jeden
Reviewed in Germany on January 7, 2020Style: ProcessorVerified Purchase
MikeH
Amazon is terrible at product titles. Great CPU though!
Reviewed in Canada on September 14, 2019Style: ProcessorVerified Purchase