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Gaming Performance Comparison

Recommended System Requirements
Game Celeron 3755U 1.7GHz APU A4 Micro-6400T Quad-Core
Cyberpunk 2077 438% 641%
Red Dead Redemption 2 449% 656%
Call of Duty: Modern Warfare 369% 546%
Doom Eternal 421% 617%
Microsoft Flight Simulator 578% 833%
Need For Speed Heat 435% 637%
Grand Theft Auto VI 819% 1166%
Star Wars: Jedi - Fallen Order 653% 937%
BeamNG.drive 224% 346%
Star Citizen 421% 617%

In terms of overall gaming performance, the Intel Celeron 3755U 1.7GHz 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 Celeron 3755U 1.7GHz was released less than a year after the APU A4 Micro-6400T, and so they are likely to have similar levels of support, and similarly optimized performance when running the latest games.

The APU A4 Micro-6400T has 2 more cores than the Celeron 3755U 1.7GHz. 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.

The APU A4 Micro-6400T has 2 more threads than the Celeron 3755U 1.7GHz. 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 Celeron 3755U 1.7GHz and APU A4 Micro-6400T 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 Celeron 3755U 1.7GHz has a 0.7 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 APU A4 Micro-6400T.

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 Celeron 3755U 1.7GHz, 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 11 Watt lower Maximum TDP than the Celeron 3755U 1.7GHz. However, the Celeron 3755U 1.7GHz was created with a 14 nm smaller manufacturing technology. Overall, by taking both into account, the Celeron 3755U 1.7GHz is likely the CPU with the lower heat production and power requirements, by a small amount.

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 Celeron 3755U 1.7GHz, 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 CodenameBroadwellMullins
MoBo SocketNot sureBGA769 (FT3b)
Notebook CPUyesyes
Release Date01 Jan 201529 Apr 2014
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores2vs4
CPU Threads2vs4
Clock Speed1.7 GHzvs1 GHz
Turbo Frequency-vs1.6 GHz
Max TDP15 Wvs4 W
Lithography14 nmvs28 nm
Bit Width64 Bitvs64 Bit
Max Temperature105°Cvs-
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size128 KBvs128 KB
L2 Cache Size512 KBvs2048 KB
L3 Cache Size2.048 MBvs-
Memory Channels-vs1
ECC Memory Supportnovsno
Comparison

CPU Graphics

GraphicsRadeon R3 6400T
Base GPU Frequency-vs350 MHz
Max GPU Frequency-vs-
DirectX-vs11.2
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 Intel Celeron 3755U is a low performance, entry-level CPU built on the 14nm Broadwell architecture. As it is due for release in the first quarter of 2015, it is not yet available. The 3755U come with 2 physical cores and 2 threads that are clocked at 1.70GHz, and does not have a Turbo boost mode or HyperThreading. It has a Level 1, Level 2 and Level 3 cache of 128 KB, 512 KB and 2 MB respectively. It integrates the weak Intel HD Graphics (Broadwell), and has a TDP of 15W.APU ‚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.

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