ATI Radeon X800 PRO AGP vs GeForce 6600 GT AGP

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureCurie (2003−2013)R400 (2004−2008)
GPU code nameNV43 A2R420
Market segmentDesktopDesktop
Release date14 November 2004 (20 years ago)1 May 2004 (20 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Core clock speed500 MHz475 MHz
Number of transistors146 million160 million
Manufacturing process technology110 nm130 nm
Power consumption (TDP)47 Watt48 Watt
Texture fill rate4.0005.700
ROPs412
TMUs812

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfaceAGP 8xAGP 8x
Width1-slot1-slot
Supplementary power connectors1x Molex1x Molex

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR3GDDR3
Maximum RAM amount128 MB256 MB
Memory bus width128 Bit256 Bit
Memory clock speed475 MHz450 MHz
Memory bandwidth15.2 GB/s28.8 GB/s

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors1x DVI, 1x VGA, 1x S-Video1x DVI, 1x VGA, 1x S-Video

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX9.0c (9_3)9.0b (9_2)
Shader Model3.0no data
OpenGL2.12.0
OpenCLN/AN/A
VulkanN/AN/A

Pros & cons summary


Recency 14 November 2004 1 May 2004
Maximum RAM amount 128 MB 256 MB
Chip lithography 110 nm 130 nm
Power consumption (TDP) 47 Watt 48 Watt

6600 GT AGP has an age advantage of 6 months, a 18.2% more advanced lithography process, and 2.1% lower power consumption.

ATI X800 PRO AGP, on the other hand, has a 100% higher maximum VRAM amount.

We couldn't decide between GeForce 6600 GT AGP and Radeon X800 PRO AGP. We've got no test results to judge.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


NVIDIA GeForce 6600 GT AGP
GeForce 6600 GT AGP
ATI Radeon X800 PRO AGP
Radeon X800 PRO AGP

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3.9 23 votes

Rate GeForce 6600 GT AGP on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
5 1 vote

Rate Radeon X800 PRO AGP on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.