AMD Radeon R9 M290X

The AMD Radeon R9 M290X is a mobile graphics solution built on the GCN 1.0 architecture, utilizing the Neptune chip fabricated on a 28 nm process at TSMC. It features a die size of 212 mm² containing 2,800 million transistors, resulting in a transistor density of 13.2M per mm². The GPU operates at a base clock of 850 MHz with a boost clock of 900 MHz. In the memory subsystem, the R9 M290X is equipped with 4 GB of GDDR5 memory on a 256-bit bus interface, yielding a memory bandwidth of 153.6 GB/s. The memory clock is listed at 1200 MHz, with an effective data rate of 4.8 Gbps.

This memory configuration is significant for high-resolution workloads. A 256-bit bus paired with 153.6 GB/s of bandwidth provides a substantial data pipeline for 1080p and 1440p rendering, though it may become a limiting factor at 4K resolutions where texture streaming and frame buffer demands escalate sharply. The 4 GB frame buffer is adequate for most titles at high settings in its target resolution range, but the bandwidth figure, while respectable for its era, trails modern designs by a wide margin. For pixel throughput, the card achieves 28.80 GPixel/s and a texture fill rate of 72.00 GTexel/s, which are derived from its 32 ROPs and 80 TMUs respectively. The 1280 shading units deliver 2.304 TFLOPS of FP32 compute performance. These raw throughput numbers indicate a balanced design for its time, but the data suggests that memory bandwidth, rather than compute, will be the first bottleneck when pushing higher resolutions or enabling demanding post-processing effects.

Who Should Consider It

The benchmark data positions the R9 M290X for specific use cases rather than as a general-purpose modern GPU. Its average benchmark score is 26126, placing it in the 70th percentile of all GPUs. This percentile ranking indicates that it outperforms the majority of installed graphics hardware, but it is far from top-tier. For gaming, this card is best suited for 1080p resolution with medium to high settings in titles released around its launch period. Users attempting to play newer, graphically intensive games at 1440p will likely need to reduce settings to maintain playable frame rates, as the 153.6 GB/s bandwidth will struggle with large texture sets and high-resolution shadows.

The Geekbench Metal score of 28243 and OpenCL score of 24008 suggest that the card has reasonable compute capabilities for its age. This makes it viable for light content creation tasks, such as photo editing or basic video transcoding, where GPU acceleration is beneficial. However, the lack of modern features and the 28 nm process node mean that power efficiency is poor by current standards, with a TDP of 100 W. This card is not recommended for users seeking high-refresh-rate gaming or VR experiences, as the data indicates insufficient headroom in both memory bandwidth and raw compute for those workloads. The R9 M290X is a legacy part, and its production status is end-of-life, so prospective users should only consider it for legacy systems or as a stopgap measure where driver support and performance are already validated.

Benchmark Performance

The R9 M290X delivers an average benchmark score of 26126 across the available tests. This score is derived from its Geekbench Metal result of 28243 and its Geekbench OpenCL result of 24008. The disparity between these two scores is notable, with Metal performance being approximately 17.6% higher than OpenCL performance. This gap suggests that the architecture is more efficient under Apple's Metal API, which may indicate better driver optimization or a more favorable compute workload distribution for the GCN 1.0 design. In terms of raw compute, the 2.304 TFLOPS FP32 throughput is modest, and the data shows that the card competes closely with a narrow band of similarly performing GPUs.

Compared to its nearest rivals, the R9 M290X sits in a tightly contested performance tier. The AMD Radeon R9 370X has an average score of 25893, which is 0.9% lower than the R9 M290X. This places the two cards in a near tie, with the M290X holding a marginal lead. The AMD Radeon 860M scores 26401, which is 1% higher than the M290X, indicating a slight deficit for the older card. Similarly, the AMD Radeon RX 5700 XT 50th Anniversary scores 26403, also 1% higher. The AMD FirePro W7100 completes the group with a score of 25841, which is 1.1% lower than the M290X. These deltas, all within a 2% band, demonstrate that the R9 M290X is performance-competitive with these specific rivals, despite being an older architecture. The benchmark results indicate that the card holds its own in synthetic compute tests, but real-world gaming performance may diverge due to driver maturity and feature set differences.

How It Compares

Against the AMD Radeon R9 370X, the R9 M290X has a marginal advantage of 0.9% in average benchmark score. The two cards are effectively peers in compute performance, with the M290X edging ahead by a negligible margin. This similarity is expected given their shared architectural lineage, and the data suggests that users would see almost identical frame rates in GPU-bound scenarios.

The AMD Radeon 860M presents a slightly stiffer challenge, scoring 1% higher than the M290X. While this delta is small, it indicates that the newer integrated solution has caught up to the older discrete part in raw compute. The 860M benefits from architectural improvements, but the M290X's dedicated memory subsystem and higher TDP allowance may still provide advantages in sustained workloads.

The AMD Radeon RX 5700 XT 50th Anniversary scores 26403, which is 1% above the R9 M290X. This is a surprising result given the generational gap between the two products. The RX 5700 XT 50th Anniversary is a far more powerful GPU in gaming scenarios, but the synthetic compute benchmarks show only a 1% lead. This suggests that the M290X's GCN 1.0 architecture is particularly well-suited to the Geekbench compute workloads, or that the benchmark does not fully capture the newer card's strengths.

The AMD FirePro W7100, a workstation-oriented card, scores 25841, which is 1.1% lower than the M290X. The data shows that the gaming-oriented M290X outperforms the workstation card in these compute tests, despite the FirePro's typical focus on stability and professional drivers. This result reinforces the notion that the R9 M290X is a capable compute performer for its age, even when compared to professional-grade hardware.

Ray Tracing and Feature Set

The R9 M290X has no dedicated ray tracing cores or tensor cores, as these features were not part of the GCN 1.0 architecture. Consequently, the card lacks hardware-accelerated ray tracing capabilities. Any ray-traced effects in games would need to be handled via compute shaders, which would incur a severe performance penalty given the 2.304 TFLOPS FP32 throughput. The data indicates that the card is not viable for ray-traced workloads, and users should disable such features entirely.

In terms of API support, the R9 M290X supports DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.170. The DirectX 12 support is limited to feature level 11_1, which means it cannot take advantage of newer DirectX 12 Ultimate features such as mesh shaders or variable rate shading. Vulkan 1.2.170 support is more robust, providing access to modern low-level rendering techniques that can improve performance in Vulkan-based titles. OpenGL 4.6 support is complete for its feature set. The card's display outputs are portable device dependent, meaning the connectivity options vary by the laptop or mobile workstation it is installed in. The bus interface is PCIe 3.0 x16, which is sufficient for the card's bandwidth requirements. The power connectors are listed as none, and the slot width is an MXM Module, indicating that the card draws all its power from the MXM connector and is designed for laptop implementations. The TDP of 100 W is modest for a discrete GPU of this era, but the lack of modern power management features means it may run hotter and louder than newer parts under sustained load.