Select any two CPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game Athlon XP 2500+ Athlon XP 2800+
Cyberpunk 2077 2308% 1984%
Assassins Creed: Valhalla 3141% 2706%
Call of Duty: Black Ops Cold War 2233% 1920%
Hitman 3 3141% 2706%
Grand Theft Auto VI 3857% 3326%
FIFA 21 2152% 1850%
Far Cry 6 3698% 3188%
Genshin Impact 1723% 1478%
World of Warcraft: Shadowlands 3643% 3141%
Watch Dogs Legion 3141% 2706%

In terms of overall gaming performance, the AMD Athlon XP 2800+ is marginally better than the AMD Athlon XP 2500+ 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 Athlon XP 2500+ was released over a year more recently than the Athlon XP 2800+, and so the Athlon XP 2500+ is likely to have better levels of support, and will be more optimized for 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 Athlon XP 2500+ and the Athlon XP 2800+ both have 1 cores, and so are quite likely to struggle with the latest games, or at least bottleneck high-end graphics cards when running them. With a decent accompanying GPU, the Athlon XP 2500+ and the Athlon XP 2800+ may still be able to run slightly older games fairly effectively.

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 2500+ and the Athlon XP 2800+ are from the same family of CPUs, and thus their clock speeds are directly comparable. With this in mind, it is safe to say that with a 0.3 GHz faster base clock rate, the Athlon XP 2800+ manages to provide slightly better performance than the Athlon XP 2500+.

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 2500+ and the Athlon XP 2800+ have the same L2 cache size, and neither CPU appears to have an L3 cache. They even have the same L1 cache size, so are identical in terms of cache size.

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.

Both the Athlon XP 2500+ and the Athlon XP 2800+ have the same TDP of 68 Watts, and were created with the same manufacturing size of 130 nm, which means they will affect your yearly electricity bill about equally.

CPU Core Details

CPU CodenameBarton (Model 10)Barton (Model 10)
MoBo SocketSocket 462/Socket ASocket 462/Socket A
Notebook CPUnono
Release Date01 Dec 200410 Feb 2003
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores1vs1
Clock Speed1.833 GHzvs2.133 GHz
Turbo Frequency-vs-
System Bus -vs333 MHz
Max TDP68 Wvs68 W
Lithography130 nmvs130 nm
Bit Width-vs-
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size128 KBvs128 KB
L2 Cache Size512 KBvs512 KB
L3 Cache Size-vs-
ECC Memory Supportnovsno
Comparison

CPU Graphics

Graphicsnono

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 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.
The 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.