A16 PCIe vs ATI Radeon X800 XT AGP

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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
ArchitectureR400 (2004−2008)Ampere (2020−2024)
GPU code nameR420GA107
Market segmentDesktopWorkstation
Release date1 March 2004 (20 years ago)12 April 2021 (3 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.

Pipelines / CUDA coresno data2560
Core clock speed500 MHz885 MHz
Boost clock speedno data1695 MHz
Number of transistors160 million17,400 million
Manufacturing process technology130 nm8 nm
Power consumption (TDP)54 Watt250 Watt
Texture fill rate8.000135.6
Floating-point processing powerno data8.678 TFLOPS
ROPs1648
TMUs1680
Tensor Coresno data80
Ray Tracing Coresno data20

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 8xPCIe 4.0 x16
Lengthno data267 mm
Width1-slot2-slot
Supplementary power connectors1x Molex8-pin EPS

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 typeGDDR3GDDR6
Maximum RAM amount256 MB16 GB
Memory bus width256 Bit128 Bit
Memory clock speed500 MHz1812 MHz
Memory bandwidth32 GB/s231.9 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-VideoNo outputs

API compatibility

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

DirectX9.0b (9_2)12 Ultimate (12_2)
Shader Modelno data6.6
OpenGL2.04.6
OpenCLN/A3.0
VulkanN/A1.2
CUDA-8.6

Pros & cons summary


Recency 1 March 2004 12 April 2021
Maximum RAM amount 256 MB 16 GB
Chip lithography 130 nm 8 nm
Power consumption (TDP) 54 Watt 250 Watt

ATI X800 XT AGP has 363% lower power consumption.

A16 PCIe, on the other hand, has an age advantage of 17 years, a 6300% higher maximum VRAM amount, and a 1525% more advanced lithography process.

We couldn't decide between Radeon X800 XT AGP and A16 PCIe. We've got no test results to judge.

Be aware that Radeon X800 XT AGP is a desktop card while A16 PCIe is a workstation one.


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

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ATI Radeon X800 XT AGP
Radeon X800 XT AGP
NVIDIA A16 PCIe
A16 PCIe

Comparisons with similar GPUs

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Community ratings

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4.6 442 votes

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