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Gaming Performance Comparison

Recommended System Requirements
Game Athlon 64 FX-53 Pentium D 840 3.2GHz
Cyberpunk 2077 698% 1120%
Hitman 3 974% 1543%
Assassins Creed: Valhalla 974% 1543%
Call of Duty: Black Ops Cold War 673% 1082%
FIFA 21 646% 1041%
Grand Theft Auto VI 1211% 1905%
Far Cry 6 1158% 1825%
Genshin Impact 504% 824%
World of Warcraft: Shadowlands 1140% 1797%
Battlefield 6 1016% 1607%

In terms of overall gaming performance, the AMD Athlon 64 FX-53 is very slightly better than the Intel Pentium D 840 3.2GHz 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 Pentium D 840 was released less than a year after the Athlon 64 FX-53, and so they are likely to have similar levels of support, and similarly optimized performance when running the latest games.

The Pentium D 840 has 1 more core than the Athlon 64 FX-53. However, while the Pentium D 840 will probably perform better than the Athlon 64 FX-53, both CPUs are likely to struggle with the latest games, and will almost certainly bottleneck high-end graphics cards. This should not affect games that are a few years old, and even the latest games should at least be playable on very low settings, as only recently have game developers begun to harness the power of multiple cores.

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 Athlon 64 FX-53 and Pentium D 840 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 D 840 has a 0.8 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 Pentium D 840 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 Pentium D 840 has a 1024 KB bigger L2 cache than the Athlon 64 FX-53, but neither of the CPUs have L3 caches, so the Pentium D 840 wins out in this area with its larger L2 cache.

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 Athlon 64 FX-53 has a 41 Watt lower Maximum TDP than the Pentium D 840. However, the Pentium D 840 was created with a 40 nm smaller manufacturing technology. Overall, by taking both into account, the Pentium D 840 is likely the CPU with the lower heat production and power requirements, by quite a wide margin.

CPU Core Details

CPU CodenameSledgeHammerSmithfield
MoBo SocketSocket 939LGA 775/ Socket T
Notebook CPUnono
Release Date01 Jun 200426 May 2005
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores1vs2
CPU Threads1vs-
Clock Speed2.4 GHzvs3.2 GHz
Turbo Frequency-vs-
System Bus -vs800 MHz
Max TDP89 Wvs130 W
Lithography130 nmvs90 nm
Bit Width64 Bitvs-
Max Temperature70°Cvs-
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size128 KBvs32 KB
L2 Cache Size1024 KBvs2048 KB
L3 Cache Size-vs-
ECC Memory Supportnovsno
Comparison

CPU Graphics

Graphicsno
Base GPU Frequency-vs-
Max GPU Frequency-vs-
DirectX-vs-
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 ReviewAthlon 64 FX-53 is an entry-level Processor based on the 130nm K8 micro-architecture.

It offers 1 Physical Core (1 Logical), clocked at 2.4GHz and 1MB of L2 Cache.
No relevant technologies are activated in a way the processor doesn't even support Virtualization.

The processor DOES NOT integrate any graphics. and has a rated board TDP of 89W.

Its performance is below the average and so most demanding games will not run optimally.
In April 2005, Intel's biggest rival, AMD, had x86 dual-core microprocessors intended for workstations and servers on the market, and was poised to launch a comparable product intended for desktop computers. As a response, Intel developed Smithfield, the first x86 dual-core microprocessor intended for desktop computers, beating AMD's Athlon 64 X2 by a few weeks. Intel first launched Smithfield on April 16, 2005 in the form of the 3.2 GHz Hyper-threading enabled Pentium Extreme Edition 840. On May 26, 2005, Intel launched the mainstream Pentium D branded processor lineup with initial clock speeds of 2.8, 3.0, and 3.2 GHz with model numbers of 820, 830, and 840 respectively. In March 2006, Intel launched the last Smithfield processor, the entry-level Pentium D 805, clocked at 2.66 GHz with a 533 MT/s bus. The relatively cheap 805 was found to be highly overclockable; 3.5 GHz was often possible with good air cooling. Running it at over 4 GHz was possible with water cooling, and at this speed the 805 outperformed the top-of-the-line processors (May 2006) from both major CPU manufacturers (the AMD Athlon 64 FX-60 and Intel Pentium Extreme Edition 965) in many benchmarks including power consumption.