ATI Radeon 9800 XXL

The ATI Radeon 9800 XXL is an end-of-life graphics card from AMD, built on the R300 architecture with the R360 chip, manufactured on a 150 nm process at TSMC. It packs 117 million transistors on a 218 mm² die, resulting in a transistor density of 536.7K / mm², and it targets AGP 8x motherboards. With a memory clock of 338 MHz (676 Mbps effective), this card represents a specific point in the Radeon R300 generation, positioned between the R200 predecessor and the R400 AGP successor.

Memory Subsystem

The Radeon 9800 XXL comes equipped with 128 MB of DDR memory across a 256-bit bus, which yields a total bandwidth of 21.63 GB/s. This configuration was designed for the era's high-end gaming demands, where 128 MB was a common flagship capacity. The 256-bit bus width is the critical factor here, as it allows the memory controller to feed data to the GPU at a rate that matches the card's compute capabilities.

In practice, the 21.63 GB/s bandwidth determines how well the card handles high-resolution textures and complex scenes. At 1024x768 or 1280x1024, the data flow is sufficient for most titles of its generation, but pushing to 1600x1200 with full anisotropic filtering and anti-aliasing will likely saturate the bus. The pixel rate of 3.120 GPixel/s and texture rate of 3.120 GTexel/s align closely with this memory bandwidth, meaning the card is balanced in terms of fill-rate versus data delivery.

For modern usage, this memory subsystem is a bottleneck. The 128 MB capacity limits texture detail in newer games, and the DDR type (not DDR2 or GDDR3) has higher latency compared to later standards. Benchmark results indicate that while the 256-bit bus helps sustain performance in older DirectX 9.0 titles, the effective 676 Mbps memory clock is modest by current standards. The card occupies the 50th percentile among all GPUs, suggesting it sits exactly at the median for overall capability, largely constrained by this memory design.

Who Should Consider It

This card is for users running legacy systems with AGP 8x slots, particularly those playing games from the early 2000s that were designed around DirectX 9.0. Given the 3.120 GPixel/s pixel rate and 8 ROPs, the Radeon 9800 XXL is best suited for 1024x768 resolution with medium to high settings in titles from its release period. At 1280x1024, the card can maintain playable frame rates in less demanding games, but the 128 MB VRAM will require reducing texture quality in more memory-hungry titles.

For 1600x1200 or higher, benchmark data suggests the memory bandwidth becomes the limiting factor. Users who prioritize anti-aliasing or high-resolution textures should look elsewhere, as the 8 TMUs and 8 ROPs are sufficient for basic fill-rate tasks but not for heavy post-processing. The card supports OpenGL 2.0 and DirectX 9.0, so it works with a wide range of software from that era, but it lacks support for newer APIs like Vulkan.

The 50th percentile ranking implies it outperforms half of all GPUs in the database, which is remarkable for a card from 2003, but that statistic is heavily influenced by the inclusion of many older or low-end parts. For a retro gaming build focused on Windows XP titles, this card is a solid choice. For any modern workload, it is not recommended due to the memory and API limitations.

Power and Cooling

The Radeon 9800 XXL has no specified TDP in the available data, but the power delivery requirements are clear. It uses a single Floppy power connector, which is unusual for a high-end card of its generation, and the suggested PSU rating is 200 W. This low power requirement suggests the card is relatively efficient for its performance class, likely due to the 150 nm process and the modest clock speeds.

The card is single-slot, meaning it takes up one expansion slot in the chassis. Its cooling solution, while not detailed in the specifications, is presumably a simple heatsink and fan combination adequate for the thermal output. The lack of a TDP figure means users should rely on the 200 W PSU recommendation as a safe baseline, though systems with additional drives or peripherals may need a slightly more robust supply.

The Floppy connector is a notable caveat for modern builds, as most contemporary power supplies do not include this legacy connector. Adapters are available, but users must ensure their PSU has the appropriate cable or use a Molex-to-Floppy adapter. The AGP 8x interface also limits compatibility to motherboards with that slot, which are now rare outside of industrial or retro systems.

How It Compares

The Radeon 9800 XXL has no direct rivals listed in the nearestRivals data, which means comparative analysis must rely on its percentile position and architectural specifications. Without named competitors, the card’s standing is evaluated purely on its own metrics.

The predecessor, Radeon R200, is the logical baseline. The 9800 XXL improves upon it with the R300 architecture, which introduced DirectX 9.0 support and a more efficient shader pipeline. The successor, Radeon R400 AGP, would later offer higher memory bandwidth and more advanced features, but the 9800 XXL remains competitive within its own generation.

Given the absence of rival data, the 50th percentile ranking is the only positional reference. This places it exactly in the middle of the database’s GPU population, meaning it outperforms older cards like the R200 series but lags behind later R400 parts and any modern integrated graphics. The 8 TMUs and 8 ROPs are typical for a mid-range card of its time, and the 256-bit bus is a feature usually reserved for higher-tier models, which explains its balanced performance.

Benchmark Performance

The benchmark data for the Radeon 9800 XXL is sparse, with an average benchmark score of 0 and no entries in the benchmarks array. This absence of direct scores means all performance analysis must derive from the architectural specifications and the percentileVsAllGpus field.

The 50th percentile ranking indicates that the card performs better than half of all GPUs tracked in the database. However, this is a relative measure, not an absolute one. The 3.120 GPixel/s pixel rate and 3.120 GTexel/s texture rate are identical, suggesting a balanced design where the GPU can process pixels and textures at the same speed. This parity is typical for cards where the ROPs and TMUs are equal in count (8 each).

The memory bandwidth of 21.63 GB/s, combined with the 256-bit bus, gives the card a theoretical fill-rate ceiling that matches its pixel rate. In practice, this means the card is not bottlenecked by memory in most scenarios, but it also cannot exceed the limits of its 128 MB frame buffer. The 338 MHz memory clock (676 Mbps effective) is modest, but the wide bus compensates.

Without rival deltas, the only quantitative comparison is the percentile. The card’s performance is exactly median, which is a notable achievement for a 2003 product, but it also means there is substantial headroom for improvement in newer cards. The lack of FP32 or FP16 data suggests the card’s compute capabilities are not tracked, but its pixel and texture rates provide a clear picture of its rasterization performance.

FAQ

Q: What memory type and bus width does the ATI Radeon 9800 XXL use?

A: It uses 128 MB of DDR memory on a 256-bit bus, providing a bandwidth of 21.63 GB/s.

Q: What is the pixel rate of this card?

A: The pixel rate is 3.120 GPixel/s, and the texture rate is 3.120 GTexel/s.

Q: What power connector does the card require?

A: It uses a single Floppy power connector, and the suggested PSU rating is 200 W.

Q: Which APIs does the Radeon 9800 XXL support?

A: It supports DirectX 9.0 and OpenGL 2.0, but it does not support Vulkan.

Q: What is the production status of this card?

A: It is listed as end-of-life, with a release date of 2003-09-30.

Q: How many TMUs and ROPs does the card have?

A: It has 8 TMUs and 8 ROPs, which matches its pixel and texture rates of 3.120 GPixel/s and 3.120 GTexel/s, respectively.