AMD Radeon Pro 5300M vs AMD Radeon RX 550 Comparison

# AMD Radeon RX 550 vs AMD Radeon Pro 5300M

The AMD Radeon RX 550 and AMD Radeon Pro 5300M occupy different corners of the GPU landscape, separated by two years of architectural evolution and targeting distinct use cases. The data shows a clear performance hierarchy, with the Pro 5300M dominating in every shared benchmark, but the RX 550's desktop-oriented feature set and lower power envelope tell a more nuanced story than raw scores alone.

Where Each One Wins

The benchmark results are unambiguous on performance: the Radeon Pro 5300M wins all three head-to-head tests, taking the 3-0 sweep. But the wins are not evenly distributed—they range from a 38% advantage in Geekbench Metal to a massive 62.2% lead in Geekbench OpenCL. This suggests the Pro 5300M's advantage grows larger in compute-oriented workloads rather than graphics-specific ones.

The RX 550's wins are more subtle and lie outside raw performance. It is a dual-slot desktop card with a 50 W TDP and no power connectors, making it a drop-in solution for legacy systems. The Pro 5300M, by contrast, is a mobile part with "Portable Device Dependent" display outputs, meaning it is not a standalone purchase but an integrated component of a laptop. The RX 550 also has a defined physical footprint at 145 mm (5.7 inches) in length, while the Pro 5300M's dimensions are not specified.

In terms of API support, the Pro 5300M offers DirectX 12 (12_1) and Vulkan 1.4, while the RX 550 is limited to DirectX 12 (12_0) and Vulkan 1.3. This gives the Pro 5300M a forward-looking compatibility edge. The RX 550 does have a listed launch MSRP of 79 USD, whereas the Pro 5300M has no launch MSRP, reflecting its OEM-only mobile status.

Architecture Differences

These two GPUs represent two distinct architectural eras. The RX 550 uses the Lexa chip built on GlobalFoundries' 14 nm process, employing the GCN 4.0 architecture from the Polaris (RX 500) generation. It packs 2,200 million transistors into a 103 mm² die, yielding a transistor density of 21.4M per mm².

The Pro 5300M leaps forward to the Navi 14 chip on TSMC's 7 nm process, using the RDNA 1.0 architecture from the Radeon Pro Mac (Navi Mobile) generation. This chip contains 6,400 million transistors—nearly three times as many—spread across a 158 mm² die. The density jump to 40.5M per mm² reflects the process node advantage, and the smaller-per-transistor footprint is a direct result of the 7 nm shrink.

The compute resources scale dramatically. The Pro 5300M has 1,280 shading units, 80 texture mapping units, and 32 ROPs, versus the RX 550's 512 shading units, 32 TMUs, and 16 ROPs. This 2.5x increase in shading units and 2x increase in ROPs explains why the Pro 5300M's pixel rate reaches 40.00 GPixel/s and texture rate hits 100.0 GTexel/s, compared to 18.93 GPixel/s and 37.86 GTexel/s for the RX 550.

The FP32 compute figures tell the same story: the Pro 5300M delivers 3.200 TFLOPS versus 1,211.4 GFLOPS for the RX 550. Notably, the Pro 5300M's FP16 output doubles to 6.400 TFLOPS with a 2:1 ratio, while the RX 550 runs FP16 at a 1:1 ratio, matching its FP32 output. This makes the Pro 5300M significantly more capable for mixed-precision workloads.

Head-to-Head Benchmarks

The three shared benchmarks paint a consistent picture of Pro 5300M dominance, but the magnitude varies in revealing ways.

In Geekbench Metal, the Pro 5300M scores 33,626 against the RX 550's 20,838, a 38% advantage. This is the closest margin of the three tests, suggesting that Metal's graphics-oriented workload partially masks the architectural gap. The Pro 5300M still wins decisively, but the delta is the smallest observed.

Geekbench Vulkan shows a larger gap: 27,912 versus 12,270, a 56% lead for the Pro 5300M. Vulkan's lower-level access to the hardware appears to amplify the RDNA 1.0 architecture's efficiency advantages over GCN 4.0. The 1.4 versus 1.3 Vulkan version support may also contribute, allowing the Pro 5300M to leverage newer API features.

The most lopsided result comes in Geekbench OpenCL, where the Pro 5300M posts 29,252 against the RX 550's 11,063, a 62.2% advantage. OpenCL is heavily compute-oriented, and this is where the Pro 5300M's 2.5x shading unit count and doubled FP32 throughput shine brightest. The RX 550's GCN architecture, while competent, is simply outmatched in raw parallel compute.

Looking at the broader benchmark context, the Pro 5300M also has PassMark scores that the RX 550 does not share: 5,918 in G3D, 582 in G2D, and 2,658 in GPU Compute. Its DirectX 9/10/11/12 PassMark scores range from 25 to 80, with DirectX 9 being the strongest at 80. These additional data points, while not directly comparable to the RX 550, reinforce the Pro 5300M's positioning as a more robust compute and graphics solution.

Specification Differences

The two cards diverge on nearly every measurable specification. The process node is the most fundamental: 14 nm (GlobalFoundries) for the RX 550 versus 7 nm (TSMC) for the Pro 5300M. Transistor counts are 2,200 million versus 6,400 million, and die sizes are 103 mm² versus 158 mm².

Memory is another major separator. The RX 550 uses 2 GB of GDDR5 on a 128-bit bus, delivering 112.0 GB/s bandwidth at 1750 MHz (7 Gbps effective). The Pro 5300M has 4 GB of GDDR6 on the same 128-bit bus, but its 1500 MHz (12 Gbps effective) memory clock pushes bandwidth to 192.0 GB/s—a 71% improvement.

Clock speeds are closer than one might expect. The RX 550 has a 1100 MHz base and 1183 MHz boost, while the Pro 5300M starts lower at 1000 MHz base but boosts higher to 1250 MHz. The Pro 5300M's higher boost clock, combined with its larger compute array, produces the substantial performance gap.

Power and physical specifications differ as well. The RX 550 is rated at 50 W TDP with a suggested PSU of 250 W, while the Pro 5300M draws 85 W TDP with no suggested PSU listed. Both cards avoid external power connectors, but the RX 550's dual-slot design and 145 mm length make it a standalone retail product, whereas the Pro 5300M's slot width and dimensions are unspecified.

The bus interface also differs: PCIe 3.0 x8 for the RX 550 versus PCIe 4.0 x8 for the Pro 5300M. Display outputs are another contrast—the RX 550 offers 1x DVI, 1x HDMI 2.0b, and 1x DisplayPort 1.4a, while the Pro 5300M's outputs are "Portable Device Dependent."

FAQ

Q: Which GPU has better compute performance?

A: The Radeon Pro 5300M is decisively ahead. It wins Geekbench OpenCL by 62.2% (29,252 versus 11,063) and offers 3.200 TFLOPS FP32 versus the RX 550's 1,211.4 GFLOPS. Its FP16 output of 6.400 TFLOPS is also double its FP32 rate, while the RX 550 runs both at 1,211.4 GFLOPS.

Q: How do their memory subsystems compare?

A: The Pro 5300M has 4 GB of GDDR6 versus 2 GB of GDDR5 for the RX 550. Both use a 128-bit bus, but the Pro 5300M achieves 192.0 GB/s bandwidth versus 112.0 GB/s due to its faster 12 Gbps effective memory speed.

Q: What is the architectural generation gap?

A: The RX 550 uses GCN 4.0 on a 14 nm process (Lexa chip), while the Pro 5300M uses RDNA 1.0 on a 7 nm process (Navi 14 chip). The Pro 5300M crams 6,400 million transistors into 158 mm² versus 2,200 million in 103 mm² for the RX 550.

Q: Are there API compatibility differences?

A: Yes. The Pro 5300M supports DirectX 12 (12_1) and Vulkan 1.4, while the RX 550 is limited to DirectX 12 (12_0) and Vulkan 1.3. Both support OpenGL 4.6.

Q: Which card is more suitable for a desktop build?

A: The RX 550 is the only one with desktop-oriented specifications: a dual-slot design, 145 mm length, 1x DVI, 1x HDMI 2.0b, and 1x DisplayPort 1.4a outputs. The Pro 5300M has portable device-dependent outputs and no dimensions listed.

Q: How do their overall benchmark averages compare?

A: The RX 550 has an average benchmark score of 11,075, placing it at the 50th percentile of all GPUs. The Pro 5300M averages 10,013, sitting at the 48th percentile. This counterintuitive result stems from the Pro 5300M's PassMark scores, which drag down its average despite winning all head-to-head tests.

The Verdict

The data supports a straightforward conclusion: the Radeon Pro 5300M is the superior performer in every directly comparable benchmark. Its wins of 38% in Metal, 56% in Vulkan, and 62.2% in OpenCL are not marginal—they represent a generational leap in architecture and compute capability. The 7 nm RDNA 1.0 design, with 1,280 shading units and 3.200 TFLOPS FP32, simply outclasses the GCN 4.0-based RX 550.

For users prioritizing raw performance in graphics or compute workloads, the Pro 5300M is the clear choice. Its 4 GB GDDR6 memory and 192.0 GB/s bandwidth also provide a more future-proof memory subsystem. The higher 85 W TDP is a tradeoff, but one justified by the performance delivered.

The RX 550, however, retains relevance in specific scenarios. Its 50 W TDP, lack of power connectors, and 250 W suggested PSU make it a low-strain option for compact or legacy systems. Its defined desktop form factor, with DVI and HDMI outputs, offers plug-and-play compatibility that the Pro 5300M cannot match as a mobile-only part.

The average benchmark scores complicate the narrative slightly: the RX 550's 11,075 average edges out the Pro 5300M's 10,013, and the RX 550 sits at the 50th percentile versus the Pro 5300M's 48th. This discrepancy arises from the Pro 5300M's PassMark results, which include scores as low as 25 in DirectX 12, pulling its average down despite its Geekbench dominance. Users should weigh the head-to-head results more heavily, as they directly compare the two cards under identical test conditions.

The verdict is context-dependent. The Pro 5300M wins on performance and modern features, making it the pick for anyone who can accept a mobile form factor and needs maximum compute power. The RX 550 wins on desktop practicality and low power draw, serving as a capable entry-level solution for systems where the Pro 5300M cannot physically fit. Neither card is universally better—the right choice depends entirely on whether performance or form factor takes priority.