Time for another Versus post.
Here's a chart comparing CPU Passmark Benchmarks results of AMD Athlon Neo mobile processor and two AMD Athlon Neo X2 Dual Core variants:
CPU Benchmark results (“Baselines”) were gathered from users’ submissions to the PassMark web site as well as from internal testing. PerformanceTest conducts eight different tests and then averages the results together to determine the CPU Mark for a system. These eight tests are as follows:
1. Integer Maths Test
2. Compression Test
3. Prime Number Test
4. Encryption Test
5. Floating Point Math Test
6. SSE/3D Now Test
7. SSE stands for Streaming SIMD extensions.
8. String Sorting Test
To ensure that the full CPU power of a PC system is realized, PerformanceTest runs each CPU test on all available CPUs. Specifically, PerformanceTest runs one simultaneous CPU test for every logical CPU (Hyper-threaded); physical CPU core (dual core) or physical CPU package (multiple CPU chips). So hypothetically if you have a PC that has two CPUs, each with dual cores that use hyper-threading then PerformanceTest will run eight simultaneous tests. (via Passmark website)
Although having similar names, it appears that AMD Neo X2 pretty much blows AMD Neo out of the water in terms of raw processing power. So much so that it makes sense to
1. warn friends not to mistake the two as one and the same and
2. say that the comparison isn't even fair.
For another unfair comparison (this time, in favor of Athlon Neo), here's AMD Athlon Neo vs. Intel Atom N270 (Music Conversion, Video Creation).