Select any two CPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game Athlon XP 2800+ Pentium D 805 2.67GHz
Cyberpunk 2077 1984% 1565%
Assassins Creed: Valhalla 2706% 2141%
Call of Duty: Black Ops Cold War 1920% 1513%
Hitman 3 2706% 2141%
Grand Theft Auto VI 3326% 2636%
FIFA 21 1850% 1457%
Far Cry 6 3188% 2526%
Genshin Impact 1478% 1160%
World of Warcraft: Shadowlands 3141% 2488%
Watch Dogs Legion 2706% 2141%

In terms of overall gaming performance, the Intel Pentium D 805 2.67GHz is marginally better than the AMD Athlon XP 2800+ 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 805 was released less than a year after the Athlon XP 2800+, and so they are likely to have similar levels of support, and similarly optimized performance when running the latest games.

Both CPUs exhibit very poor performance, so rather than upgrading from one to the other you should consider looking at more powerful CPUs. Neither of these will be able to run the latest games in any playable way.

The Pentium D 805 has 1 more core than the Athlon XP 2800+. However, while the Pentium D 805 will probably perform better than the Athlon XP 2800+, 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 XP 2800+ and Pentium D 805 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 805 has a 0.527 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 Pentium D 805.

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 Athlon XP 2800+ has a 510 KB bigger L2 cache than the Pentium D 805, but neither of the CPUs have L3 caches, so the Athlon XP 2800+ wins out in this area with its larger L2 cache.

The System Bus Speed is important for providing higher bandwidth, and with higher bandwidth the system has the capacity to move more data over a certain time period than it would with lower bandwidth.

The Pentium D 805 has a 200 MHz faster System Bus Speed than the Athlon XP 2800+, and as such, has a marginally higher limit when it comes to the size of the data being processed at once.

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 XP 2800+ has a 27 Watt lower Maximum TDP than the Pentium D 805. However, the Pentium D 805 was created with a 40 nm smaller manufacturing technology. Overall, by taking both into account, the Pentium D 805 is likely the CPU with the lower heat production and power requirements, by quite a wide margin.

CPU Core Details

CPU CodenameBarton (Model 10)Smithfield
MoBo SocketSocket 462/Socket ALGA 775/ Socket T
Notebook CPUnono
Release Date10 Feb 200301 Mar 2006
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores1vs2
Clock Speed2.133 GHzvs2.66 GHz
Turbo Frequency-vs-
System Bus 333 MHzvs533 MHz
Max TDP68 Wvs95 W
Lithography130 nmvs90 nm
Bit Width-vs64 Bit
Voltage Range-vs1.200V-1.400V KB
Max Temperature-vs64.1°C
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size128 KBvs32 KB
L2 Cache Size512 KBvs2 KB
L3 Cache Size-vs-
ECC Memory Supportnovsno
Comparison

CPU Graphics

Graphicsnono

CPU Package and Version Specifications

Package Size-vs37.5mm x 37.5mm
Revision-vs-
PCIe Revision-vs-
PCIe Configurations-vs-

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewThe Athlon made its debut on June 23, 1999. Athlon is the ancient Greek word for Champion/trophy of the games.
Athlon is the brand name applied to a series of x86-compatible microprocessors designed and manufactured by Advanced Micro Devices (AMD). The original Athlon (now called Athlon Classic) was the first seventh-generation x86 processor and retained the initial performance lead it had over Intel's competing processors for a significant period of time. The original Athlon also had the distinction of being the first desktop processor to reach speeds of one gigahertz (GHz). AMD has continued using the Athlon name with the Athlon 64, an eighth-generation processor featuring x86-64 (later renamed AMD64) architecture, and the Athlon II.
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.