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Gaming Performance Comparison

Recommended System Requirements
Game APU A4 Micro-6400T Quad-Core Core i5-430UM 1.2GHz
Cyberpunk 2077 641% 415%
Red Dead Redemption 2 656% 426%
Call of Duty: Modern Warfare 546% 350%
Doom Eternal 617% 399%
Microsoft Flight Simulator 833% 549%
Warcraft 3: Reforged 85% 29%
Grand Theft Auto VI 1166% 781%
Wolcen: Lords of Mayhem 560% 359%
Planet Zoo 772% 507%
Need For Speed Heat 637% 413%

In terms of overall gaming performance, the Intel Core i5-430UM 1.2GHz 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 three years more recently than the Core i5-430UM 1.2GHz, and so the APU A4 Micro-6400T is likely to have far better levels of support, and will be much more optimized and ultimately superior to the Core i5-430UM 1.2GHz when running the latest games.

The APU A4 Micro-6400T has 2 more cores than the Core i5-430UM 1.2GHz. 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.

Both the AMD APU A4 Micro-6400T Quad-Core and the Intel Core i5-430UM 1.2GHz have the same number of threads. The APU A4 Micro-6400T has one thread per physical core, whereas the Core i5-430UM 1.2GHz 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 APU A4 Micro-6400T and Core i5-430UM 1.2GHz 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 Core i5-430UM 1.2GHz has a 0.2 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. 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 APU A4 Micro-6400T has a 1536 KB bigger L2 cache than the Core i5-430UM 1.2GHz, 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 14 Watt lower Maximum TDP than the Core i5-430UM 1.2GHz, and was created with a 4 nm smaller manufacturing technology. What this means is the APU A4 Micro-6400T will consume slightly less power and consequently produce less heat, enabling more prolonged computational tasks with fewer adverse effects. This will lower your yearly electricity bill slightly, 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 Core i5-430UM 1.2GHz, 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 CodenameMullinsArrandale
MoBo SocketBGA769 (FT3b)BGA 1288
Notebook CPUyesyes
Release Date29 Apr 201424 May 2010
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores4vs2
CPU Threads4vs4
Clock Speed1 GHzvs1.2 GHz
Turbo Frequency1.6 GHzvs1.73 GHz
Max TDP4 Wvs18 W
Lithography28 nmvs32 nm
Bit Width64 Bitvs64 Bit
Max Temperature-vs105°C
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size128 KBvs128 KB
L2 Cache Size2048 KBvs512 KB
L3 Cache Size-vs3 MB
Max Memory Size-vs8 GB
Memory Channels-vs2
ECC Memory Supportnovsno
Comparison

CPU Graphics

GraphicsRadeon R3 6400T
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.
Core i5-430UM 1.2GHz is a super energy efficient mobile processor based on the 32nm, Nehalem architecture.

It offers 2 Physical Cores (4 Logical), initially clocked at 1.2GHz, which may go up to 1.73GHz and 3MB of L3 Cache.
Among its many features, Turbo Boost and Virtualization are activated.

The processor integrates very weak Graphics called Intel i5 430UM, with 12 Execution Units, initially clocked at 166MHz which go up to 500MHz, in Turbo Mode and share the L2 Cache and system RAM with the processor.
Both the processor and integrated graphics have a rated board TDP of 18W.

Its performance is below the average and so most demanding games will not run optimally.

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