Features and Specifications
Let’s start out with the features that matter here. The big selling point on the 845 is the fact that it has 4 cores in comparison to dual core offerings from INTEL at the same price point. While gaming has mostly depended on single-thread performance in times past, we’re really starting to see the dependence on multiple threads in newer titles. While the 4 cores are nice, the one thing the 845 is missing is the K. Yep, there’s no unlocked multiplier here. While not impossible to overclock, it will certainly be harder and time constraints are going to keep us from delving into it this time. Really, you should be looking at a K series Athlon if you want to overclock.
New, Quiet, and Powerful Coolers
AMD’s new near-silent coolers for select desktop processors offer 65W, 95W, and 125W options that generate less than 39 dBa of noise, even under load.
Microsoft DirectX® 12 Support
AMD Athlon™ X4 Processors fully support Microsoft® DirectX® 12 and its Multi-Threaded Command Buffer Recording feature for an impressive leap in gaming performance, spectacular image quality, stunning 3D visual effects, realistic lighting and lifelike imagery.
Unlocked CPU Clock Multiplier4
AMD Athlon™ K-series processors can be overclocked without artificial multiplier restrictions for simpler, easier overclocking.
Achieve total control of your system with AMD OverDrive™ technology’s powerful settings and monitoring tools.
AMD Turbo Core Technology dynamically adjusts for performance boosts and low power states to maximize application performance within the thermal and power limits of your platform.
AMD Wide Floating Point Accelerator
Enables improved performance on HPC, scientific and workstation applications with a shared FP Scheduler
Dual 128-bit Floating point engines – capable of teaming together for 256-bit AVX instructions or operating separately with each core.
Advanced Instruction Capabilities
Supports advanced instruction sets such as AVX, FMA4 and XOP, and AES, greatly increasing performance in applications designed to take advantage of this feature.
AMD Virtualization™ (AMD-VTM) Technology with IOMMU
Helps virtualization software to run more securely and efficiently, enabling a better experience when dealing with virtual systems.
AMD Cool’n’Quiet™ Technology
Designed to deliver more efficient performance by automatically and instantaneously adjusting performance states and features based on processor performance requirements.
Designed to deliver all the benefits of Microsoft® Windows® 10 OS. FREE UPGRADE OFFER! Get DirectX® 12 with a free upgrade to Windows 10 in its first year from Microsoft.
With the specifications, we’ll see a few things that stand out compared to the other Athlon X4 chips. First, the base and boost frequencies are a bit lower. How that translates in performance won’t be as easy to gauge since I don’t have any other Athlons to compare with, but it does lead to an impressively low 65W power rating. Another thing I noticed is a 2MB L2 Cache versus the usual 4MB. This seemingly puts the 845 at a slight disadvantage, but may also help keep costs down. Here’s a chart with the new thermal solutions so you can see the comparisons.