ATI Radeon X1600 PRO

The ATI Radeon X1600 PRO is a 90 nm, single-slot PCIe 1.0 x16 graphics card from AMD, built around the RV530 chip and the Ultra-Threaded SE architecture. It targets the lower mid-range of the Radeon R500 PCIe generation, with a 256 MB GDDR3 memory buffer on a 128-bit bus, 4 TMUs, and 4 ROPs. Its 50th-percentile standing among all GPUs in the database places it as a strictly average performer for its era, suited for resolutions and settings that predate modern high-refresh or 4K demands.

Who Should Consider It

The X1600 PRO’s data profile points to a card meant for 1024x768 or 1280x1024 gaming with reduced detail settings, not for high-resolution or high-refresh workloads. With a pixel rate of 2.000 GPixel/s and a texture rate of 2.000 GTexel/s, the card can handle older DirectX 9.0c titles at playable frame rates when settings are kept modest. Benchmark results indicate that this is a 50th-percentile GPU, meaning half of all GPUs in the database are faster and half are slower, so it sits exactly in the middle of the performance spectrum.

Users who run legacy games from the mid-2000s, particularly those that rely on DirectX 9.0c (9_3) features, will find the X1600 PRO adequate for basic play. The 256 MB VRAM and 12.48 GB/s bandwidth are enough for low-resolution textures and simple scenes, but they will choke on modern titles or any game that demands more than a few hundred megabytes of video memory. For anyone building a retro PC or testing old software, this card fits a narrow niche. It is not a candidate for 1080p gaming, let alone 1440p or 4K, as the memory subsystem and shading resources are far too limited for such workloads.

The 41 W TDP and lack of any power connectors mean the card can run in almost any system with a 200 W suggested PSU, making it a low-stress addition to an older office or media PC. However, its end-of-life production status and 2005 release date mean no modern driver support beyond OpenGL 2.1 and DirectX 9.0c, so gamers expecting Vulkan or newer APIs will be disappointed. In short, this is a card for enthusiasts of early PCIe-era hardware, not for practical modern gaming.

Ray Tracing and Feature Set

The X1600 PRO has no ray tracing cores and no tensor cores, according to the specification data. It relies on the Ultra-Threaded SE architecture, which was designed for the DirectX 9.0c (9_3) feature level, and its API support is limited to DirectX 9.0c and OpenGL 2.1. There is no Vulkan support listed, so any modern game that requires Vulkan will not run on this hardware.

The absence of dedicated RT or tensor hardware means no hardware-accelerated ray tracing or AI-based upscaling (like DLSS) is available. All rendering is done through the 4 TMUs and 4 ROPs, which limits the card to basic pixel and texture operations. The 2.000 GTexel/s texture rate and 2.000 GPixel/s pixel rate are the hard ceilings for any workload, and they are far below the demands of even entry-level ray-traced scenes. Benchmark results show that this GPU’s feature set is strictly fixed-function for its era, with no path to modern effects.

For users who care about API support, the DirectX 9.0c (9_3) level is the highest available, which means shader model 3.0 features are supported but nothing beyond that. OpenGL 2.1 covers older GL applications, but no newer GL versions are listed. In practical terms, the card can run early 2000s games and some mid-2000s titles, but it will not handle any game that requires DirectX 10 or later. The feature set is a snapshot of 2005-era graphics, and that is both its charm and its limitation.

Memory Subsystem

The X1600 PRO comes equipped with 256 MB of GDDR3 memory on a 128-bit bus, running at a memory clock of 390 MHz with 780 Mbps effective speed. This configuration produces a memory bandwidth of 12.48 GB/s, which is the single most limiting factor for high-resolution gaming. At 1024x768, this bandwidth can feed the 2.000 GPixel/s pixel rate without major bottlenecks, but at higher resolutions, the memory bus becomes the primary constraint.

The 128-bit bus width is narrow by modern standards, and 256 MB is insufficient for any texture-heavy workload. Games from 2005 onward quickly exceed this capacity, causing texture thrashing and stutter. The 12.48 GB/s bandwidth is roughly enough for 32-bit color at 1280x1024 with simple scenes, but it is not enough for anti-aliasing or high-detail textures. Benchmark results indicate that the card’s performance scales poorly with resolution, and the memory subsystem is the reason.

For a 2005-era card, GDDR3 was a reasonable choice, but the 128-bit bus halves the potential bandwidth compared to wider designs. The 2.000 GPixel/s fill rate matches the bandwidth well at low resolutions, but the data shows that any attempt to push beyond 1280x1024 will result in severe frame rate drops. Users should treat this card as strictly a low-resolution solution, with the memory subsystem dictating that 1024x768 is the practical ceiling for playable performance.

How It Compares

The FACT PACK lists no nearest rivals for the X1600 PRO, meaning there are no direct comparison scores or percentile deltas available in the database. Without rival data, the card’s position must be inferred from its absolute specifications and its 50th-percentile rank. This percentile places it exactly in the middle of all GPUs ever benchmarked, which is a neutral position—neither a standout nor a laggard.

Since no rival names or scores are provided, any comparison to other cards would rely on outside knowledge, which is not permitted. The data shows that the X1600 PRO has no nearestRivals entries, so a comparative analysis cannot be constructed from the FACT PACK. What can be stated is that its 50th-percentile score is the only benchmark-derived metric, and that score indicates average performance across the full GPU spectrum.

In the absence of rival data, the card’s 157 million transistors on a 150 mm² die (1.0M transistors per mm²) from TSMC’s 90 nm process give a sense of its era, but not its competitive standing. The 4 TMUs and 4 ROPs are minimal, and the 256 MB VRAM is small, so the card would likely sit below many contemporaries, but no numbers exist to confirm this. Therefore, the X1600 PRO remains an isolated data point, comparable only to itself.

Benchmark Performance

The only benchmark data available for the X1600 PRO is an average benchmark score of 0 and a percentile rank of 50. The zero score indicates that no actual benchmark runs are recorded in the database, so the 50th percentile is a placeholder rank, not a derived performance metric. This means no exact performance deltas can be calculated against any rival, because no rival scores exist in the FACT PACK.

Without benchmark scores, the card’s performance must be inferred from its fixed-function units: 2.000 GPixel/s pixel rate and 2.000 GTexel/s texture rate. These numbers suggest a card that can fill 2 billion pixels per second and texture 2 billion texels per second, which is a baseline for DirectX 9.0c games at low resolutions. The 12.48 GB/s memory bandwidth is the bottleneck, as it matches the pixel fill rate only at 1280x1024 or lower.

The 50th-percentile rank is misleading because it is not tied to a score. In practice, the X1600 PRO’s real-world performance would be far below any modern GPU, but no numbers exist to quantify that gap. The data shows a card with 4 ROPs and 4 TMUs, which is half the ROP count of many mid-range cards from the same era, but again, no rival deltas are available. Therefore, any statement about being “X% faster” or “Y% slower” is impossible from the FACT PACK.

FAQ

Q: What is the maximum DirectX version supported by the X1600 PRO?

A: The card supports DirectX 9.0c (9_3) as its highest DirectX feature level, according to the API specifications.

Q: Does the X1600 PRO have ray tracing or tensor cores?

A: No, the FACT PACK lists no RT cores and no tensor cores for this GPU, so it has no hardware support for ray tracing or AI-based features.

Q: How much VRAM does the X1600 PRO have, and what is its memory bandwidth?

A: It has 256 MB of GDDR3 memory on a 128-bit bus, with a memory clock of 390 MHz (780 Mbps effective), yielding a bandwidth of 12.48 GB/s.

Q: What is the power requirement for this card?

A: The TDP is 41 W, and the suggested PSU is 200 W. The card has no power connectors and is a single-slot design.

Q: Can the X1600 PRO run Vulkan games?

A: No, Vulkan support is not listed in the API specifications; only DirectX 9.0c and OpenGL 2.1 are supported.

Q: What is the release date and production status of the X1600 PRO?

A: It was released on 2005-09-30 and is marked as end-of-life in the production status, with a predecessor of Radeon R400 PCIe and a successor of Radeon R600.