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Gaming Performance Comparison

Recommended System Requirements
Game Ryzen R3 1200 Pentium G645T 2.5GHz
Cyberpunk 2077 7% 187%
Control 37% 267%
eFootball PES 2020 3% 177%
Call of Duty: Modern Warfare 37% 267%
Grand Theft Auto VI 71% 358%
Borderlands 3 7% 187%
Total War: Three Kingdoms 71% 358%
Red Dead Redemption 2 43% 284%
FIFA 20 10% 141%
F1 2019 43% 284%

In terms of overall gaming performance, the AMD Ryzen R3 1200 is massively better than the Intel Pentium G645T 2.5GHz 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 R3 1200 was released over three years more recently than the Pentium G645T 2.5GHz, and so the Ryzen R3 1200 is likely to have far better levels of support, and will be much more optimized and ultimately superior to the Pentium G645T 2.5GHz when running the latest games.

The Ryzen R3 1200 has 2 more cores than the Pentium G645T 2.5GHz. With 4 cores, the Ryzen R3 1200 is much less likely to struggle with the latest games, or bottleneck high-end graphics cards when running them.

The Ryzen R3 1200 has 2 more threads than the Pentium G645T 2.5GHz. Both CPUs have one thread 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 R3 1200 and Pentium G645T 2.5GHz 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 R3 1200 has a 0.6 GHz faster frequency, this is not always an indicator that it will be superior in performance, despite frequency being crucial when trying to avoid GPU bottlenecking. In this case, however, the difference is enough that it possibly indicates the superiority of the Ryzen R3 1200.

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 R3 1200 has a 1536 KB bigger L2 cache than the Pentium G645T 2.5GHz, 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.

The Pentium G645T 2.5GHz has a 30 Watt lower Maximum TDP than the Ryzen R3 1200. However, the Ryzen R3 1200 was created with a 18 nm smaller manufacturing technology. Overall, by taking both into account, the Ryzen R3 1200 is likely the CPU with the lower heat production and power requirements, but there really isn't much in it.

The Pentium G645T 2.5GHz has an on-board GPU, which means that it will be capable of running basic graphics applications (i.e., games) without the need for a dedicated graphics card. The Ryzen R3 1200, however, does not, and you will probably have to look for a dedicated card if you wish to use it at all.

For in-depth GPU comparisons with the Intel HD Graphics Desktop (Sandy Bridge), click on the following GPU overview comparison icon (visible throughout Game-Debate), and choose a GPU from the list to compare against:

On-board GPUs tend to be fairly awful in comparison to dedicated cards from the likes of AMD or Nvidia, but as they are built into the CPU, they also tend to be cheaper and require far less power to run (this makes them a good choice for laptops). We would recommend a dedicated card for running the latest games, but integrated GPUs are improving all the time and casual gamers may find less recent games perform perfectly acceptably.

Can I Run It

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CPU Core Details

CPU Codename-Sandy Bridge
MoBo SocketSocket AM4LGA 1155/Socket H2
Notebook CPUnono
Release Date27 Jul 201702 Sep 2012
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores4vs2
CPU Threads4vs2
Clock Speed3.1 GHzvs2.5 GHz
Turbo Frequency3.4 GHzvs-
Max TDP65 Wvs35 W
Lithography14 nmvs32 nm
Bit Width64 Bitvs64 Bit
Max Temperature-vs65°C
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size256 KBvs128 KB
L2 Cache Size2048 KBvs512 KB
L3 Cache Size8 MBvs3 MB
Max Memory Size-vs32 GB
Memory Channels-vs2
ECC Memory Supportnovsno
Comparison

CPU Graphics

GraphicsIntel HD Graphics Desktop (Sandy Bridge)
Base GPU Frequency-vs850 MHz
Max GPU Frequency-vs1300 MHz
DirectX-vs11.1
Displays Supported-vs-
Comparison

CPU Package and Version Specifications

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

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewThe Ryzen R3 1200 is an entry-level CPU based on AMD's 14nm, Zen microarchitecture. It offers 4 physical cores (4 logical), initially clocked at 3.1GHz, which may go up to 3.4GHz using XFR Turbo Boost. It has an unlocked multiplier therefore it can be overclocked using traditional methods. It has 8MB 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, Simultaneous Multithreading, Cool n Quiet, CoolCore Technology, Extended Frequency Range (XFX), Pure Power and Precision Boost are enabled. It doesn't feature an integrated GPU. This CPU is likely to offer excellent computational performance and will not be the bottleneck in any modern gaming PC.Pentium G645T 2.5GHz is an energy efficient budget processor based on the 32nm, Sandy Bridge architecture.

It offers 2 Physical Cores (2 Logical), clocked at 2.5GHz and 3MB of L3 Cache.
Among its many features, Virtualization is activated.

The processor integrates very weak Graphics called Intel HD Graphics Desktop (Bay Trail), with 6 Execution Units, initially clocked at 650MHz and that go up to 1100MHz, in Turbo Mode which share the L2 Cache and system RAM with the processor.
Both the processor and integrated graphics have a rated board TDP of 35W.

It offers average performance. This means it will become a bottleneck in some demanding applications.

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