AMD Radeon Pro 580X vs AMD Radeon RX 5300M Comparison

# AMD Radeon Pro 580X vs AMD Radeon RX 5300M

The AMD Radeon RX 5300M is the faster GPU in the only directly comparable benchmark, yet the AMD Radeon Pro 580X holds a higher overall percentile ranking and a substantially higher average benchmark score across its broader test suite. The RX 5300M wins the sole head-to-head OpenCL test by a razor-thin 0.3%, but the Pro 580X counters with an 82nd percentile standing versus the RX 5300M's 80th, and an average benchmark score of 38,706 against 36,529. These two mobile-class AMD parts, separated by architecture generation and process node, deliver a closer contest than their specifications suggest.

Head-to-Head Benchmarks

The only directly comparable metric between these two GPUs is the Geekbench OpenCL test, and the result is effectively a tie. The AMD Radeon RX 5300M scores 36,529, while the AMD Radeon Pro 580X trails with 36,426 — a delta of just 0.3% in favor of the RX 5300M. This margin is within run-to-run variance, meaning the data shows no meaningful performance gap in OpenCL compute workloads.

However, the Pro 580X has been tested in two additional benchmarks that the RX 5300M lacks: Geekbench Metal and Geekbench Vulkan. In Metal, the Pro 580X scores 39,577, and in Vulkan it reaches 40,115. These scores are notably higher than its OpenCL result, suggesting the Pro 580X is better optimized for Apple's Metal API and Vulkan environments. The RX 5300M's single OpenCL score of 36,529 cannot be directly compared to these other API results, but the Pro 580X's average benchmark score of 38,706 across all three tests indicates a higher overall performance ceiling.

When placed against their respective nearest rivals, both GPUs occupy similar performance tiers. The Pro 580X's average score of 38,706 puts it within 1% of the NVIDIA GeForce MX570 A (38,691, 0% delta), the NVIDIA GeForce RTX 5080 Mobile (38,349, 0.9% delta), and the NVIDIA GeForce MX570 (38,299, 1.1% delta), while trailing the AMD Radeon Pro 575X (39,116, -1% delta). The RX 5300M's average of 36,529 matches the NVIDIA GeForce GTX TITAN X (36,530, 0% delta) almost exactly, sits 0.7% ahead of the NVIDIA T1000 (36,289), and trails the AMD Radeon PRO W6400 (37,157, -1.7% delta) while leading the AMD Radeon Pro Duo (35,860, 1.9% delta).

The practical takeaway is that in OpenCL, these GPUs are functionally equivalent. The Pro 580X's advantage emerges only in API-specific tests that the RX 5300M was not evaluated on, and that advantage is substantial — its Metal score is 8.6% higher than its OpenCL score, and its Vulkan score is 10.1% higher.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon Pro 580X has an average benchmark score of 38,706, compared to 36,529 for the AMD Radeon RX 5300M — a difference of approximately 5.9% in favor of the Pro 580X.

Q: Did the RX 5300M win any direct benchmark comparison?

A: Yes, in the sole head-to-head Geekbench OpenCL test, the RX 5300M scored 36,529 against the Pro 580X's 36,426, winning by 0.3%.

Q: How do these GPUs rank against all other GPUs?

A: The Pro 580X is in the 82nd percentile of all GPUs, while the RX 5300M is in the 80th percentile. Both are above average but not top-tier.

Q: What API support does each GPU offer?

A: The Pro 580X supports DirectX 12 (12_0), OpenGL 4.6, and Vulkan 1.3. The RX 5300M supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.4.

Q: Which GPU has more shading units?

A: The Pro 580X has 2,304 shading units, while the RX 5300M has 1,408 shading units — a 63.6% advantage for the Pro 580X in raw shader count.

Q: What is the transistor density difference?

A: The RX 5300M has a transistor density of 40.5M per mm², while the Pro 580X has 24.6M per mm². The RX 5300M's density is roughly 64.6% higher.

Architecture Differences

The architectural divide between these two GPUs is generational. The Pro 580X uses the Ellesmere chip built on GCN 4.0 architecture, manufactured on a 14 nm process at GlobalFoundries. The RX 5300M uses the Navi 14 chip built on RDNA 1.0 architecture, manufactured on a 7 nm process at TSMC. This node shrink from 14 nm to 7 nm is a major factor in the RX 5300M's higher transistor density of 40.5M / mm² versus 24.6M / mm² for the Pro 580X.

The Pro 580X packs 5,700 million transistors on a 232 mm² die, while the RX 5300M contains 6,400 million transistors on a smaller 158 mm² die. Despite having 12.3% more transistors, the RX 5300M's die is 31.9% smaller, highlighting the density advantage of the newer process. The architecture change from GCN 4.0 to RDNA 1.0 also brings a shift in FP16 compute: the Pro 580X delivers 5.530 TFLOPS FP16 at a 1:1 ratio with FP32, while the RX 5300M delivers 8.138 TFLOPS FP16 at a 2:1 ratio. This means the RX 5300M has a 47.2% advantage in FP16 throughput, a meaningful difference for workloads that utilize half-precision math.

The Pro 580X's GCN architecture allocates 2,304 shading units, 144 texture mapping units, and 32 ROPs. The RX 5300M's RDNA design uses 1,408 shading units, 88 TMUs, and 32 ROPs. Despite fewer shading units and TMUs, the RX 5300M achieves a higher pixel rate of 46.24 GPixel/s versus 38.40 GPixel/s for the Pro 580X, thanks to its higher boost clock. The RX 5300M's texture rate of 127.2 GTexel/s, however, trails the Pro 580X's 172.8 GTexel/s.

Both GPUs lack dedicated ray tracing cores and tensor cores, and neither supports hardware-accelerated ray tracing. The Pro 580X is described as an integrated graphics processor (IGP) with an Apple MPX bus interface, while the RX 5300M uses a PCIe 4.0 x8 interface.

Specification Differences

The memory subsystems are fundamentally different. The Pro 580X has 8 GB of GDDR5 memory on a 256-bit bus, delivering 218.9 GB/s of bandwidth. The RX 5300M has 3 GB of GDDR6 memory on a 96-bit bus, delivering 168.0 GB/s. The Pro 580X offers 5 GB more capacity and 30.3% more bandwidth, while the RX 5300M uses faster GDDR6 memory with an effective data rate of 14 Gbps versus 6.8 Gbps for the Pro 580X's GDDR5.

Clock speeds differ significantly. The Pro 580X has a base clock of 1100 MHz and a boost clock of 1200 MHz. The RX 5300M has a lower base clock of 1000 MHz but a substantially higher boost clock of 1445 MHz, with a game clock of 1181 MHz. The RX 5300M's 20.4% higher boost clock explains its superior pixel rate despite fewer ROPs being equal.

The RX 5300M is significantly more power-efficient, with a TDP of 85 W compared to the Pro 580X's 185 W — a 54.1% reduction. The RX 5300M requires no power connectors, while the Pro 580X's power connector configuration is not specified. The Pro 580X's display outputs are 2x HDMI 2.0b, while the RX 5300M's outputs are listed as portable device dependent, reflecting their different target platforms.

The Pro 580X reports an FP32 performance of 5.530 TFLOPS, while the RX 5300M reports 4.069 TFLOPS — the Pro 580X is 35.9% ahead in single-precision compute. The RX 5300M offers a Vulkan 1.4 API versus the Pro 580X's Vulkan 1.3, and DirectX 12 (12_1) versus 12 (12_0), giving it slightly more modern API support.

Where Each One Wins

The AMD Radeon Pro 580X wins in scenarios that demand high memory capacity and bandwidth. Its 8 GB GDDR5 frame buffer with 218.9 GB/s bandwidth is double the capacity and 30% faster than the RX 5300M's 3 GB GDDR6 solution. For large dataset compute workloads, high-resolution texture loading, or multi-display configurations, the Pro 580X's memory advantage is decisive. Its FP32 throughput of 5.530 TFLOPS also exceeds the RX 5300M's 4.069 TFLOPS by 35.9%, making it the stronger choice for single-precision compute tasks. The Pro 580X's higher average benchmark score of 38,706 and 82nd percentile ranking further solidify its position as the more capable overall performer in the data.

The AMD Radeon RX 5300M wins on power efficiency and modern architecture traits. Its 85 W TDP is less than half the Pro 580X's 185 W, making it the clear choice for thermally constrained mobile designs. The RX 5300M's FP16 throughput of 8.138 TFLOPS is 47.2% higher than the Pro 580X's 5.530 TFLOPS, benefiting AI inference and certain media workloads that use half precision. Its faster boost clock of 1445 MHz and higher pixel rate of 46.24 GPixel/s give it an edge in fill-rate-bound scenarios. The RX 5300M also carries a smaller die (158 mm² vs 232 mm²) with more modern 7 nm manufacturing, and its PCIe 4.0 x8 interface provides double the per-lane bandwidth of the Pro 580X's Apple MPX bus.

The RX 5300M's single OpenCL head-to-head win, though marginal at 0.3%, indicates that RDNA 1.0's architectural efficiency can match GCN 4.0's raw compute advantage in at least one workload. The Pro 580X's Metal and Vulkan scores of 39,577 and 40,115, respectively, suggest that in API-specific environments, it pulls further ahead — but those tests were not run on the RX 5300M, so the comparison remains incomplete.

The Verdict

Choose the AMD Radeon Pro 580X if your priority is maximum raw compute performance, memory capacity, or API-specific acceleration in Metal or Vulkan environments. The data shows it has a 5.9% higher average benchmark score, 35.9% higher FP32 throughput, 63.6% more shading units, and 30.3% more memory bandwidth than the RX 5300M. Its 8 GB frame buffer is the deciding factor for anyone working with large assets or datasets, and its 82nd percentile ranking places it above the RX 5300M's 80th. The Pro 580X is built for a desktop-class Apple MPX platform with 2x HDMI 2.0b outputs, targeting professional workflows where power draw is secondary.

Choose the AMD Radeon RX 5300M if power efficiency, modern process technology, or half-precision compute are critical factors. Its 85 W TDP represents a 54.1% reduction versus the Pro 580X, making it far better suited to thin-and-light laptops. The FP16 throughput of 8.138 TFLOPS is a genuine advantage for emerging workloads, and its 7 nm RDNA 1.0 architecture is a generation ahead of GCN 4.0. The RX 5300M also delivers a marginal OpenCL victory over the Pro 580X, proving that modern architecture can compensate for fewer shading units and less memory bandwidth. Its 3 GB GDDR6 memory, while smaller, runs at 14 Gbps effective, and the PCIe 4.0 x8 interface offers modern connectivity.

The verdict is nuanced: the Pro 580X is the stronger all-around GPU in the data, but the RX 5300M is the more forward-looking choice. If your workloads use FP16, value power efficiency, or require the latest API support (Vulkan 1.4, DirectX 12_1), the RX 5300M's advantages are concrete and measurable. If you need maximum memory, raw FP32 throughput, or the proven performance of the Pro 580X's broader benchmark suite, the older GCN part remains competitive despite its age. Both GPUs are end-of-life products, so availability and platform compatibility will likely dictate the practical choice.