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Gaming Performance Comparison

Recommended System Requirements
Game Ryzen R7 1700 Core i5-7400 3.0GHz
Cyberpunk 2077 39% 0%
Assassins Creed: Valhalla 18% 35%
Call of Duty: Black Ops Cold War 20% 31%
Genshin Impact 54% 24%
eFootball PES 2021 35% 8%
Mafia: Definitive Edition 35% 8%
Watch Dogs Legion 18% 35%
FIFA 21 43% 6%
Marvel's Avengers 20% 31%
Microsoft Flight Simulator 31% 14%

In terms of overall gaming performance, the AMD Ryzen R7 1700 is massively better than the Intel Core i5-7400 3.0GHz when it comes to running the latest games. This also means it will be less likely to bottleneck more powerful GPUs, allowing them to achieve more of their gaming performance potential.

The Ryzen R7 1700 was released less than a year after the Core i5-7400 3.0GHz, and so they are likely to have similar levels of support, and similarly optimized performance when running the latest games.

Both CPUs exhibit very powerful performance, so it probably isn't worth upgrading from one to the other, as both are capable of running even the most demanding games at the highest settings (assuming they are accompanied by equivalently powerful GPUs).

The Ryzen R7 1700 has 4 more cores than the Core i5-7400 3.0GHz. 8 cores is probably excessive if you mean to just run the latest games, as games are not yet able to harness this many cores. The cores in the Core i5-7400 3.0GHz is more than enough for gaming purposes. However, if you intend on running a server with the Ryzen R7 1700, it would seem to be a decent choice.

The Ryzen R7 1700 has 12 more threads than the Core i5-7400 3.0GHz. The Core i5-7400 3.0GHz has one thread per physical core, whereas the Ryzen R7 1700 uses hyperthreading and has 2 logical threads per physical core.

Multiple threads are useful for improving the performance of multi-threaded applications. Additional cores and their accompanying thread will always be beneficial for multi-threaded applications. Hyperthreading will be beneficial for applications optimized for it, but it may slow others down. For games, the number of threads is largely irrelevant, as long as you have at least 2 cores (preferably 4), and hyperthreading can sometimes even hit performance.

More important for gaming than the number of cores and threads is the clock rate. Problematically, unless the two CPUs are from the same family, this can only serve as a general guide and nothing like an exact comparison, because the clock cycles per instruction (CPI) will vary so much.

The Ryzen R7 1700 and Core i5-7400 3.0GHz are not from the same family of CPUs, so their clock speeds are by no means directly comparable. Bear in mind, then, that while the Ryzen R7 1700 and the Core i5-7400 3.0GHz both have the same clock frequency, this is by no means an indicator that the two CPUs will provide the same level of performance. As such, we need to look elsewhere for more reliable comparisons.

Aside from the clock rate, the next-most important CPU features for PC game performance are L2 and L3 cache size. Faster than RAM, the more cache available, the more data that can be stored for lightning-fast retrieval. L1 Cache is not usually an issue anymore for gaming, with most high-end CPUs eking out about the same L1 performance, and L2 is more important than L3 - but L3 is still important if you want to reach the highest levels of performance. Bear in mind that although it is better to have a larger cache, the larger it is, the higher the latency, so a balance has to be struck.

The Ryzen R7 1700 has a 3072 KB bigger L2 cache than the Core i5-7400 3.0GHz, which means that it, at worst, wins out in this area, and at best, will provide superior gaming performance and will work much better with high-end graphics cards.

The maximum Thermal Design Power is the power in Watts that the CPU will consume in the worst case scenario. The lithography is the semiconductor manufacturing technology being used to create the CPU - the smaller this is, the more transistors that can be fit into the CPU, and the closer the connections. For both the lithography and the TDP, it is the lower the better, because a lower number means a lower amount of power is necessary to run the CPU, and consequently a lower amount of heat is produced.

Both the Ryzen R7 1700 and the Core i5-7400 3.0GHz have the same TDP of 65 Watts, and were created with the same manufacturing size of 14 nm, which means they will affect your yearly electricity bill about equally.

CPU Core Details

CPU CodenameZenKaby Lake-S
MoBo SocketSocket AM4LGA 1151
Notebook CPUnono
Release Date02 Mar 201703 Jan 2017
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores8vs4
CPU Threads16vs4
Clock Speed3 GHzvs3 GHz
Turbo Frequency3.7 GHzvs3.5 GHz
Max TDP65 Wvs65 W
Lithography14 nmvs14 nm
Bit Width-vs64 Bit
Max Temperature-vs100°C
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size512 KBvs256 KB
L2 Cache Size4096 KBvs1024 KB
L3 Cache Size16 MBvs6 MB
Max Memory Size-vs64 GB
Memory Channels-vs2
ECC Memory Supportnovsno
Comparison

CPU Graphics

Graphics
Base GPU Frequency-vs-
Max GPU Frequency-vs-
DirectX-vs-
Displays Supported-vs-
Comparison

CPU Package and Version Specifications

Package Size-vs-
Revision-vs-
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PCIe Configurations-vs-

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewThe AMD Ryzen 7 1700 8-Core 3.7GHz is a high-end CPU based on the 14nm Zen micro architecture. It offers 8 physical cores (16 threads), initially clocked at 3.0 GHz base clock, rising to 3.7 GHz with boost clock. It has an unlocked multiplier for overclocking, and 16MB of L3 Cache. Among its many features are Simultaneous Multithreading, Cool n Quiet, CoolCore Technology, Extended Frequency Range (XFX), Pure Power and Precision Boost. This CPU is likely to offer exceptional computational performance and will not be the bottleneck in any modern gaming PC. It will be able to play all modern games comfortably on high/ultra graphics performance without being a hindrance to the accompanying GPU.The Core i5-7400 4-Core 3.0GHz is a **high-end CPU** based on Intel's 7th Gen 14nm, Kaby Lake microarchitecture. It offers 4 physical cores (4 logical), initially clocked at 3.0GHz, which may go up to 3.5GHz using Turbo Boost. It **doesn't** have an **unlocked multiplier** therefore it can't be overclocked using traditional methods. It has **6MB** of L3 Cache. Level 3 cache is a static memory bank of a processor and it is used to feed it instructions. This processor also supports DDR4 based RAMs with maximum memory support of 64GB. It has a maximum Thermal Power Design of **65W**. It is on par with competitor processors. Among its many features, **Intel Enhanced Speedstep, Turbo Boost 2.0 and Virtualization** are activated. It integrates **Intel HD Graphics 630** on board. It has a base frequency of **350MHz** which can go up to 1GHz as well as offering DirectX 12 support. This CPU is likely to offer **excellent** computational performance and will not be the bottleneck in any modern gaming PC.