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Gaming Performance Comparison

Recommended System Requirements
Game APU A4 Micro-6400T Quad-Core Pentium Dual Core B940 2.0GHz
Cyberpunk 2077 641% 433%
Red Dead Redemption 2 656% 443%
Call of Duty: Modern Warfare 546% 365%
Doom Eternal 617% 416%
Microsoft Flight Simulator 833% 571%
Need For Speed Heat 637% 430%
Grand Theft Auto VI 1166% 810%
Star Wars: Jedi - Fallen Order 937% 646%
Mount and Blade 2: Bannerlord 1074% 744%
Star Citizen 617% 416%

In terms of overall gaming performance, the Intel Pentium Dual Core B940 2.0GHz is noticeably better than the AMD APU A4 Micro-6400T Quad-Core 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 APU A4 Micro-6400T was released over a year more recently than the Pentium Dual Core, and so the APU A4 Micro-6400T is likely to have better levels of support, and will be more optimized for running the latest games.

The APU A4 Micro-6400T has 2 more cores than the Pentium Dual Core. With 4 cores, the APU A4 Micro-6400T is much less likely to struggle with the latest games, or bottleneck high-end graphics cards when running them.

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 APU A4 Micro-6400T and Pentium Dual Core 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 Pentium Dual Core has a 1 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 probably a good indicator that the APU A4 Micro-6400T is superior.

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 APU A4 Micro-6400T has a 1536 KB bigger L2 cache than the Pentium Dual Core, and although the APU A4 Micro-6400T does not appear to have an L3 cache, its larger L2 cache means that it wins out in this area.

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 APU A4 Micro-6400T has a 31 Watt lower Maximum TDP than the Pentium Dual Core, and was created with a 4 nm smaller manufacturing technology. What this means is the APU A4 Micro-6400T will consume significantly less power and consequently produce less heat, enabling more prolonged computational tasks with fewer adverse effects. This will lower your yearly electricity bill significantly, as well as prevent you from having to invest in extra cooling mechanisms (unless you overclock).

The APU A4 Micro-6400T 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 Pentium Dual Core, 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 Radeon R3 6400T, 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.

CPU Core Details

CPU CodenameMullinsSandy Bridge
MoBo SocketBGA769 (FT3b)rPGA 988A / B / Socket G1 / G2
Notebook CPUyesyes
Release Date29 Apr 201419 Jun 2011
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores4vs2
CPU Threads4vs-
Clock Speed1 GHzvs2 GHz
Turbo Frequency1.6 GHzvs-
Max TDP4 Wvs35 W
Lithography28 nmvs32 nm
Bit Width64 Bitvs-
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size128 KBvs128 KB
L2 Cache Size2048 KBvs512 KB
L3 Cache Size-vs2 MB
Memory Channels-vs-
ECC Memory Supportnovsno
Comparison

CPU Graphics

GraphicsRadeon R3 6400Tno
Base GPU Frequency350 MHzvs-
Max GPU Frequency-vs-
DirectX11.2vs-
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 ReviewAPU ‚ÄčA4 Micro-6400T Quad-Core is a micro mobile processor based on the 28nm, Puma+ microarchitecture, exclusively for tablets.
It offers 4 cores clocked at 1.0GHz that go up to 1.6GHz, in Turbo Mode and 2MB of Level 2 Cache. It also offers weak integrated Graphics called Radeon R3 6400T which come clocked at 350MHz and offer 128 Shader Processing Units.
Its performance is ridiculously low and thus only suited for home browsing.
The Pentium Dual-Core brand was used for mainstream x86-architecture microprocessors from Intel from 2006 to 2009 when it was renamed to Pentium. The processors are based on either the 32-bit Yonah or (with quite different microarchitectures) 64-bit Merom-2M, Allendale, and Wolfdale-3M core, targeted at mobile or desktop computers. In terms of features, price and performance at a given clock frequency, Pentium Dual-Core processors were positioned above Celeron but below Core and Core 2 microprocessors in Intel's product range. The Pentium Dual-Core was also a very popular choice for overclocking, as it can deliver optimal performance (when overclocked) at a low price.

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