One benchmark that I used to use is AquaMark3 (a DirectX 9 based benchmark). Unfortunately, the company behind AquaMark3 is no longer in business. Which is a shame, because they allowed you to submit your scores to a central database which had some decent search parameters. (For instance, you could search for equivalent systems that were not overclocked to get an idea of what performance a particular upgrade would give you.)
Still, since I have it around, I threw it at the new Athlon64 3000+ system that I just built. I expect that the video scores will be pretty poor since it’s using an integrated NVIDIA GeForce 6150 video card that uses 64MB of system RAM.
10100 (CPU: 7470, GFX: 1080) AMD Athlon64 3000+ PC3200 (2x512MB) DDR RAM Asus A8N-VM CSM motherboard NVIDIA GeForce 6150 integrated graphics (64MB)
Indeed, the graphics scores are pretty much bottom of the barrel. Worse then my old Ti4600 video card from a few years ago. OTOH, the CPU score is very good for a low-end system and a $50 or $75 PCIe video card would spice things up quite a bit.
Older scores from past systems:
11879 (CPU: 8453, GFX: 1278) AMD Athlon64 X2 4200+ PC3200 (2x1GB) DDR RAM Asus A8N5X motherboard NVIDIA GeForce 6200 PCIe (64MB)
11095 (CPU: 7069, GFX: 1299) AMD Athlon64 X2 3800+ DDR2 533 (2x1GB) RAM Asus M2NPV-VM motherboard NVIDIA GeForce 6150 integrated graphics (32MB)
19500 (CPU: 6300, GFX: 2300) AMD AthlonXP 2600+ PC2700 (2x512MB) DDR RAM A7N8X-Deluxe motherboard NVIDIA GeForce4 Ti4600 128MB (AGP) NVIDIA 61.77
36500 (CPU: 7250, GFX: 4875) AMD Opteron 144 PC2100 1GB (2x512MB) ECC DDR RAM Asus SK8V motherboard NVIDIA GeForce FX 5900 XT NVIDIA 61.77
47000 (CPU: 7000, GFX: 7125) AMD Opteron 144 PC2100 1GB (2x512MB) ECC DDR RAM Asus SK8V motherboard NVIDIA GeForce 6800 NVIDIA 61.77
50475 (CPU: 7250, GFX: 8300) AMD Opteron 148 PC3200 2GB (2x1GB) ECC DDR RAM Asus SK8N motherboard NVIDIA GeForce 6800 AGP 128MB NVIDIA 81.95
62935 (CPU: 8972, GFX: 9693) AMD Opteron 148 PC3200 2GB (2x1GB) ECC DDR RAM Asus SK8N motherboard NVIDIA GeForce 7800GS AGP 256MB NVIDIA 91.47