AMD Ryzen Downcore Control

AMD Ryzen Downcore Control
AMD Ryzen 7 processors comes with a nice feature: the downcore control. This feature allows to enable / disable cores. Ryzen 7 and Ryzen 5 chips use the same die, which is made up of two CCX (Cpu CompleX), each CCX having 4 cores. So disabling cores on Ryzen 7 makes it possible to emulate a Ryzen 5 CPU.

AMD Ryzen CCX
The downcore control is an option available in the BIOS of X370 motherboards (maybe on other chipsets like the B350 too, I don’t know).
Here is the downcore control in the MSI X370 Gaming Pro Carbon BIOS:

MSI X370 Gaming Pro Carbon – Downcore control in the BIOS
A Ryzen 7 CPU has two CCX with all cores enabled (8 cores or 8C/16T). It’s a HEIGHT (4 + 4) or Auto configuration:
1 | 2 | 3 | 4 |
1 | 2 | 3 | 4 |

AMD Ryzen 7 Downcore control – Auto
A Ryzen 5 1600 or 1600X has two CCX and 6 cores (6C/12T) enabled:
SIX (3 + 3)
1 | 2 | 3 | 4 |
1 | 2 | 3 | 4 |

AMD Ryzen 7 Downcore control – SIX (3 + 3)
A Ryzen 5 1400 or 1500X has two CCX and 4 cores (4C/8T) enabled. This can be emulated on a Ryzen 7 with two configurations: FOUR (2 + 2) or FOUR (4 + 0).
FOUR (2 + 2)
1 | 2 | 3 | 4 |
1 | 2 | 3 | 4 |
FOUR (4 + 0)
This configuration is interesting because it uses only one CCX and avoids CCX inter-connection issues (mainly the slowness: two cores on different CCX can communicate at around 30GB/s –via Ryzen Infinity Fabric which depends on the memory controller clock speed– while two cores on the same CCX can communicate at 175GB/s).
1 | 2 | 3 | 4 |
1 | 2 | 3 | 4 |

AMD Ryzen 7 Downcore control – FOUR (2 + 2)
The downcore control allows to emulate 3C/6T and 2C/4T CPUs (Ryzen 3?) with the following configurations:
THREE (3 + 0)
1 | 2 | 3 | 4 |
1 | 2 | 3 | 4 |

AMD Ryzen 7 Downcore control – THREE (3 + 0)
TWO (1 + 1)
1 | 2 | 3 | 4 |
1 | 2 | 3 | 4 |
TWO (2 + 0)
1 | 2 | 3 | 4 |
1 | 2 | 3 | 4 |

AMD Ryzen 7 Downcore control – TWO (1 + 1)
-
Resume Full name Sayed Ahmadreza Razian Age 38 (Sep 1982) Website ahmadrezarazian.ir Email ahmadrezarazian@gmail.com Education MS...
-
Shangul Mangul HabeAngur Shangul Mangul HabeAngur (City of Goats) is a game for child (4-8 years). they learn how be useful in the city and respect to people. Persian n...
-
Drowning Detection by Image Processing In this research, I design an algorithm for image processing of a swimmer in pool. This algorithm diagnostics the swimmer status. Every time graph sho...
-
معرفی نام و نام خانوادگی سید احمدرضا رضیان پست الکترونیکی ahmadrezarazian@gmail.com درجات علمی کارشناسی : ریاضی کاربردی – دانشگاه اصفهان (معدل 14...
-
Tianchi-The Purchase and Redemption Forecasts 2015 Special Prize – Tianchi Golden Competition (2015) “The Purchase and Redemption Forecasts” in Big data (Alibaba Group) Among 4868 teams. Introd...
-
Nokte – نکته نرم افزار کاربردی نکته نسخه 1.0.8 (رایگان) نرم افزار نکته جهت یادداشت برداری سریع در میزکار ویندوز با قابلیت ذخیره سازی خودکار با پنل ساده و کم ح...
-
Tianchi-Brick and Mortar Store Recommendation with Budget Constraints Ranked 5th – Tianchi Competition (2016) “Brick and Mortar Store Recommendation with Budget Constraints” (IJCAI Socinf 2016-New York,USA)(Alibaba Group...
-
1st National Conference on Computer Games-Challenges and Opportunities 2016 According to the public relations and information center of the presidency vice presidency for science and technology affairs, the University of Isfah...
-
Optimizing raytracing algorithm using CUDA Abstract Now, there are many codes to generate images using raytracing algorithm, which can run on CPU or GPU in single or multi-thread methods. In t...
-
2nd Symposium on psychological disorders in children and adolescents 2016 2nd Symposium on psychological disorders in children and adolescents 2016 Faculty of Nursing and Midwifery – University of Isfahan – 2 Aug 2016 - Ass...
-
My City This game is a city simulation in 3d view. Gamer must progress the city and create building for people. This game is simular the Simcity.
-
ببین و بپر به زودی.... لینک صفحه : http://bebinbepar.ir
-
Environmental Education Software In this game , Kids learn that They must respect to Nature and the Environment. This game was created in 3d . 600x420 (0x0) 66.45 KB ...
-
SVM Review On this review, i compare 4 papers about 4 famous models by SVM. These models are : Maximum Likelihood Classification (ML) Backpropagatio...
-
Watching Jumping Coming Soon... Visit at : http://bebinbepar.ir/
- AMD Ryzen Downcore Control AMD Ryzen 7 processors comes with a nice feature: the downcore control. This feature allows to enable / disabl...
- Fallout 4 Patch 1.3 Adds NVIDIA HBAO+ and FleX-Powered Weapon Debris Fallout 4 launched last November to record player numbers, swiftly becoming the most popular third-party game...
- Detecting and Labeling Diseases in Chest X-Rays with Deep Learning Researchers from the National Institutes of Health in Bethesda, Maryland are using NVIDIA GPUs and deep learni...
- NVIDIA TITAN Xp vs TITAN X NVIDIA has more or less silently launched a new high end graphics card around 10 days ago. Here are some pictu...
- Automatic Colorization Automatic Colorization of Grayscale Images Researchers from the Toyota Technological Institute at Chicago and University of Chicago developed a fully aut...
- Back to Dinosaur Island Back to Dinosaur Island takes advantage of 15 years of CRYENGINE development to show users the sheer endless p...
- Unity – What’s new in Unity 5.3.3 The Unity 5.3.3 public release brings you a few improvements and a large number of fixes. Read the release not...
- ASUS GeForce GTX 1080 TURBO Review This GTX 1080 TURBO is the simplest GTX 1080 I tested. By simplest, I mean the graphics card comes with a simp...
- کودا – CUDA کودا به انگلیسی (CUDA) که مخفف عبارت انگلیسی Compute Unified Device Architecture است یک سکوی پردازش موازی و مد...
- Assisting Farmers with Artificial Intelligence With our planet getting warmer and warmer, and carbon dioxide levels steadily creeping up, companies are using...
- Diagnosing Cancer with Deep Learning and GPUs Using GPU-accelerated deep learning, researchers at The Chinese University of Hong Kong pushed the boundaries...
- Diablo Meets Dark Souls in Isometric Action-RPG Eitr Among the indie games Sony showcased during its E3 press conference this week, Eitr was what most stood out to...
- Virtual Reality in the Military Virtual reality has been adopted by the military – this includes all three services (army, navy and air force)...
- Head-mounted Displays (HMD) Head-mounted displays or HMDs are probably the most instantly recognizable objects associated with virtual rea...
- Video Game Industry Stars Descend on Las Vegas for DICE 2016Last month, the 2016 D.I.C.E. Summit brought together video game …
- Using Virtual Reality to Optimize User Experience Share Your Science: Using Virtual Reality to Optimize User ExperienceEASE VR Co-Founders Prithvi Kandanda, CEO and Fred Spencer, CTO …
- An Introduction to Virtual RealityWhat is Virtual Reality? Virtual Reality is a set of …
- A Defining Moment for Heterogeneous ComputingThe streets of downtown Austin, just cleared of music festival …
- Red’s Dream-PIXAR 1987-John LasseterRed's Dream is a 1987 American computer-animated short film produced …
- Direct3D 12 vs OpenGL: A quick TestGeeXLab, the successor of GLSL Hacker, comes with the support …
- How GPUs are Revolutionizing Machine LearningTraining the sophisticated deep neural networks that power applications such …
- Microsoft finds underwater datacenters are reliable, practical and use energy sustainablyMicrosoft wrapped up Phase 2 of Project Natick, its plan …
- JetPack Latest NVIDIA JetPack Developer Tools Will Double Your Deep Learning PerformanceFrom self-driving cars to medical diagnostics, deep learning powered artificial …
- The GDC Diamond PartnerThe GDC Diamond Partner Program honors our top partners, whose …
Leave a Reply