ATI Radeon SDR

The ATI Radeon SDR is an end-of-life graphics card from AMD, built on the Rage 6 architecture and fabricated by TSMC on a 180 nm process. The chip integrates 30 million transistors on a 115 mm² die, yielding a transistor density of 260.9K per mm². Released on 2000-05-31, this part holds a 50th percentile ranking among all GPUs in the database. The dataset records no benchmark scores and no nearest rivals for this card, so analysis relies on its theoretical throughput and its position in the historical performance distribution.

How It Compares

The nearestRivals field for the Radeon SDR is empty, meaning the database currently associates no direct competitor with this part. Consequently, the only comparative anchor available is the 50th percentile ranking against all GPUs. This places the card exactly at the median of the entire historical performance distribution, indicating it is neither a low-end outlier nor a high-end part. The predecessor is listed as the Rage 4, and the successor is the Radeon R100, but no specifications for those parts are provided in this dataset, so no direct numerical comparison can be made. The 50th percentile suggests that within the database's scope, half of all GPUs are slower and half are faster, a neutral positioning that aligns with a mainstream part of its generation. Without rival names or deltaPct values, the analysis cannot state specific percentage leads or deficits against named products. The lack of rivals also implies that the database's current collection does not have comparable entries that meet the criteria for nearest-rival designation, likely due to the card's age and end-of-life status. This is a qualitative assessment based on the available percentile field, which is the sole comparative metric.

Ray Tracing and Feature Set

The Radeon SDR provides no dedicated ray tracing cores, as the rtCores field is null. Similarly, it has no tensor cores, with the tensorCores field also null. This means the card relies entirely on its fixed-function units for graphics processing. The API support is limited to DirectX 7.0 and OpenGL 1.3, with no Vulkan support listed. DirectX 7.0 is a legacy API that predates programmable shaders in the common sense, and OpenGL 1.3 is similarly an early version. Consequently, the card cannot accelerate any form of ray tracing or machine learning workloads. The feature set is purely rasterization-based, with 6 texture mapping units and 2 render output units. The pixel fill rate is 332.0 MPixel/s, and the texture fill rate is 996.0 MTexel/s. These are the only processing metrics available, and they define the card's capabilities. The absence of RT and tensor cores is expected for a product from this era, but it means modern workloads that rely on those features are entirely unsupported. The card's single display output is a VGA connector, which further underscores its legacy nature. The AGP 4x bus interface is the connection method, which is also an older standard. In summary, the feature set is minimal by modern standards, offering only basic rasterization with no hardware acceleration for advanced graphics features.

Benchmark Performance

The benchmark data for the Radeon SDR is empty; the benchmarks array contains no entries, and the average benchmark score is recorded as 0. This means there are no synthetic or real-world scores to cite for this part in the database. The only numerical performance indicators are the theoretical pixel and texture rates: 332.0 MPixel/s and 996.0 MTexel/s, respectively. These rates are derived from the clock speeds and unit counts. The memory clock is 166 MHz, which drives the 2.656 GB/s bandwidth. The 50th percentile ranking is the sole comparative metric available. Given the absence of scores, the percentile must be interpreted as a relative standing based on the database's internal weighting, which likely incorporates these theoretical rates and the memory configuration. The card's position at the 50th percentile suggests that its performance is average relative to all GPUs ever tracked. Without deltaPct values, no exact percentage comparisons can be made. The data shows a part that is neither a performance leader nor a laggard. For practical purposes, the theoretical rates indicate a card capable of handling early 3D applications at modest settings. The pixel rate of 332 MPixel/s limits the resolution and detail levels, while the texture rate of 996 MTexel/s bounds the texture complexity. These numbers, combined with the 32 MB frame buffer, point to a card designed for a specific era of gaming.

Power and Cooling

The Radeon SDR has a thermal design power (TDP) of just 23 W. This is an extremely low power draw, which is consistent with the small 30 million transistor count and the 180 nm process node. The card is a single-slot design and requires no external power connectors; the powerConnectors field is listed as "None". The suggested power supply unit rating is 200 W, which is a very modest requirement. This means the card can be installed in nearly any system with a 200 W PSU or greater, and it will not place a significant load on the power delivery system. The lack of power connectors simplifies installation, as no additional cables are needed. The 23 W TDP also implies that cooling is a simple affair; a passive or low-profile cooler would be sufficient, though the database does not specify the exact cooler. The single-slot form factor means it occupies only one expansion slot. For a builder, this card is extremely easy to accommodate. The 200 W PSU recommendation is well within the range of typical power supplies from the era and even modern ones. The low power consumption also means heat output is minimal, which is beneficial for small form factor cases. Overall, the power and cooling requirements are negligible, making this an ideal drop-in card for a legacy system.

Who Should Consider It

Given its end-of-life status and the available data, the Radeon SDR is suited for a very specific audience. The card has 32 MB of memory and a bandwidth of 2.656 GB/s, which limits its ability to handle high resolutions and high-detail settings. The 50th percentile standing indicates it is not a high-performance part. Therefore, it is best considered for users running legacy operating systems and applications that require DirectX 7.0 or OpenGL 1.3 support. These would be early 3D games and productivity software from around the year 2000, which is consistent with its release date of 2000-05-31. The card's low TDP of 23 W and lack of power connectors make it easy to install in older machines that may have limited power supplies. The single VGA output means it can drive one analog monitor. For users building a period-correct retro PC, this card offers a faithful experience. However, for any modern workload, the card is inadequate. The 32 MB frame buffer is insufficient for modern textures, and the 2.656 GB/s bandwidth is a severe bottleneck. The pixel rate of 332.0 MPixel/s further restricts the achievable resolution and frame rate. The data suggests that the card should be used at low resolutions with reduced texture detail. The API support limits the software library to early titles. In summary, this card is for retro enthusiasts and legacy system builders, not for modern gaming or productivity.

Memory Subsystem

The Radeon SDR is equipped with 32 MB of SDR memory, operating on a 128-bit bus. The memory clock is 166 MHz, which yields a bandwidth of 2.656 GB/s. This is a relatively small amount of memory by any standard, and the SDR type is an older, slower memory technology compared to later standards. The 128-bit bus width is a reasonable width for the era, but the low clock speed limits the overall bandwidth. For high resolutions, this memory subsystem is a significant constraint. A 32 MB frame buffer cannot hold the textures and framebuffer data required for high-resolution rendering. At high resolutions, the card would likely run out of memory or resort to aggressive texture compression, which degrades quality. The 2.656 GB/s bandwidth means that even if the memory capacity were sufficient, the data transfer rate would be a bottleneck. The pixel rate of 332.0 MPixel/s also caps the fill rate, so the memory subsystem, while important, is not the only limiting factor. The combination of 32 MB capacity and 2.656 GB/s bandwidth makes the card suitable only for low-resolution gaming with reduced texture detail. For a 128-bit bus, the bandwidth is modest, but it is consistent with the memory clock of 166 MHz. The SDR type is single data rate, meaning it transfers data once per clock cycle, which is less efficient than double data rate memory. This further limits the effective throughput. The data shows a memory subsystem that is adequate for its intended era but wholly inadequate for modern high-resolution workloads. The 32 MB capacity is particularly restrictive, as even early 3D games could exceed this with high-detail textures. The bus width of 128 bit is a positive aspect, but the low clock and SDR type negate that advantage. In practical terms, the memory subsystem dictates that the card operates best at low resolutions with minimal texture settings.