AMD Radeon Pro 5300 vs NVIDIA GeForce RTX 3090 Comparison

The AMD Radeon Pro 5300 and the NVIDIA GeForce RTX 3090 represent two extreme poles of the GPU spectrum, yet their average benchmark scores place them within 0.4% of each other, a statistical tie that obscures radically different performance profiles. The Radeon Pro 5300, a 7 nm RDNA 1.0 part designed for Mac integration, delivers an average benchmark score of 41,610, while the RTX 3090, a massive 8 nm Ampere flagship, averages 41,441 across a broader suite of tests. Both cards occupy the 83rd percentile of all GPUs, but their architectural philosophies and intended workloads could not be more divergent, as the data reveals in head-to-head compute tests and specification sheets alike.

FAQ

Q: How do the two cards compare in average benchmark score?

A: The AMD Radeon Pro 5300 averages 41,610 across its benchmark suite, while the NVIDIA GeForce RTX 3090 averages 41,441. This puts the Radeon Pro 5300 ahead by a mere 0.4% in the aggregate comparison.

Q: Which card wins in Geekbench OpenCL performance?

A: The NVIDIA GeForce RTX 3090 wins decisively, scoring 191,142 versus the Radeon Pro 5300's 38,720. This represents a delta of -79.7% for the AMD part, meaning the RTX 3090 is nearly five times faster in this particular compute workload.

Q: What about Geekbench Vulkan results?

A: The same pattern holds: the RTX 3090 scores 174,310 compared to the Radeon Pro 5300's 35,915, a -79.4% delta. The NVIDIA card dominates in both cross-platform compute APIs tested.

Q: How do their memory configurations differ?

A: The Radeon Pro 5300 has 4 GB of GDDR6 on a 128-bit bus with 224.0 GB/s bandwidth. The RTX 3090 features 24 GB of GDDR6X on a 384-bit bus, delivering 936.2 GB/s, which is roughly four times the bandwidth.

Q: What are their respective transistor counts and die sizes?

A: The Radeon Pro 5300 uses 6,400 million transistors on a 158 mm² die, yielding a density of 40.5M / mm². The RTX 3090 packs 28,300 million transistors into a 628 mm² die, with a density of 45.1M / mm².

Q: Is the RTX 3090's launch MSRP stated in the data?

A: Yes, the RTX 3090 has a launch MSRP of 1,499 USD. The Radeon Pro 5300's launch MSRP is not listed in the provided data.

The Verdict

The data paints a clear picture: the NVIDIA GeForce RTX 3090 is the overwhelmingly superior compute performer, winning both head-to-head benchmark comparisons by margins exceeding 79%. In Geekbench OpenCL, it delivers 191,142 points versus 38,720, and in Vulkan it scores 174,310 against 35,915. For any workload that leverages these APIs, the RTX 3090 is the only rational choice. Its 24 GB of GDDR6X memory, 82 RT cores, 328 tensor cores, and 35.58 TFLOPS of FP32 performance are all in a different league from the Radeon Pro 5300's 4 GB GDDR6, no RT cores, and 4.224 TFLOPS.

However, the aggregate average benchmark scores tell a surprising story: the Radeon Pro 5300 actually edges ahead by 0.4% (41,610 vs 41,441). This is likely due to the differing benchmark suites applied to each card; the Radeon Pro 5300's tests (Geekbench Metal, OpenCL, Vulkan) may weight differently than the RTX 3090's broader set including Passmark and 3DMark tests. The RTX 3090's nearest rival list includes the Radeon Pro 5300 at -0.4%, while the Radeon Pro 5300's list shows the RTX 3090 at +0.4%, confirming the statistical tie. For a buyer prioritizing raw compute throughput in OpenCL or Vulkan, the RTX 3090 wins outright. For a system constrained to the Radeon Pro 5300's form factor—an integrated GPU with no display outputs—the comparison is almost academic; the RTX 3090 is a triple-slot, 350 W behemoth requiring a 750 W power supply and a 12-pin connector. The verdict hinges on workload: RTX 3090 for heavy compute, Radeon Pro 5300 only where its unique IGP integration is mandatory.

Head-to-Head Benchmarks

The head-to-head data reveals a stark performance chasm. In Geekbench OpenCL, the RTX 3090 scores 191,142 against the Radeon Pro 5300's 38,720, a delta of -79.7% for the AMD card. This means the NVIDIA GPU delivers approximately 4.94 times the OpenCL throughput. The Vulkan test shows a similar disparity: RTX 3090 at 174,310 versus Radeon Pro 5300 at 35,915, a -79.4% delta, or roughly 4.85 times faster. These are not marginal differences; they represent a generational and architectural gulf. The RTX 3090's Ampere architecture, with 10,496 shading units, 328 TMUs, and 112 ROPs, simply overwhelms the Radeon Pro 5300's 1,280 shading units, 80 TMUs, and 32 ROPs. The pixel rate tells the story visually: 189.8 GPixel/s for the RTX 3090 versus 52.80 GPixel/s for the Radeon Pro 5300. Texture rate is similarly lopsided at 556.0 GTexel/s versus 132.0 GTexel/s. The FP32 compute figures are the most dramatic: 35.58 TFLOPS for RTX 3090 against 4.224 TFLOPS, an 8.4x advantage. Interestingly, the RTX 3090's FP16 performance matches its FP32 at 35.58 TFLOPS (1:1 ratio), while the Radeon Pro 5300 achieves 8.448 TFLOPS FP16 via a 2:1 ratio, meaning the NVIDIA card is over 4x faster in half-precision as well. The wins tally is unambiguous: RTX 3090 wins 2, Radeon Pro 5300 wins 0.

Specification Differences

The specification sheets diverge on nearly every measurable parameter. Memory capacity differs by a factor of six: 4 GB GDDR6 on the Radeon Pro 5300 versus 24 GB GDDR6X on the RTX 3090. Bus width jumps from 128-bit to 384-bit, and memory bandwidth from 224.0 GB/s to 936.2 GB/s. Clock speeds show the RTX 3090 running higher at both base (1395 MHz vs 1000 MHz) and boost (1695 MHz vs 1650 MHz), though the AMD card's memory clock of 1750 MHz (14 Gbps effective) is higher than the RTX 3090's 1219 MHz (19.5 Gbps effective) in raw MHz, though the NVIDIA card's wider bus more than compensates. The compute unit counts are starkly different: 1,280 shading units versus 10,496, 80 TMUs versus 328, and 32 ROPs versus 112. The RTX 3090 adds 82 RT cores and 328 tensor cores; the Radeon Pro 5300 has none. Power consumption escalates from 85 W to 350 W TDP, and the suggested PSU jumps from 250 W to 750 W. Form factor changes from IGP (integrated) to triple-slot, with the RTX 3090 measuring 336 mm in length, 140 mm in height, and 61 mm in width. Power connectors go from none to 1x 12-pin. The bus interface widens from PCIe 4.0 x8 to PCIe 4.0 x16. Display outputs differ: the Radeon Pro 5300 has none, while the RTX 3090 provides 1x HDMI 2.1 and 3x DisplayPort 1.4a. DirectX support advances from 12 (12_1) to 12 Ultimate (12_2). Process nodes differ as well: 7 nm TSMC for AMD versus 8 nm Samsung for NVIDIA, with transistor density slightly favoring the RTX 3090 at 45.1M / mm² versus 40.5M / mm².

Architecture Differences

The architectural divide is fundamental. The Radeon Pro 5300 uses the Navi 14 chip built on RDNA 1.0 architecture, part of the Radeon Pro Mac generation. It employs a 7 nm process at TSMC, integrating 6,400 million transistors on a 158 mm² die. The RTX 3090 is built on the GA102 chip using Ampere architecture, part of the GeForce 30 generation. It uses an 8 nm process at Samsung, packing 28,300 million transistors into a 628 mm² die. The transistor density is comparable (40.5M vs 45.1M per mm²), but the sheer scale of the GA102 die is nearly four times larger. The RDNA 1.0 architecture lacks dedicated ray tracing and tensor cores, while Ampere includes 82 RT cores and 328 tensor cores, enabling hardware-accelerated ray tracing and AI workloads. FP16 handling differs: RDNA 1.0 uses a 2:1 ratio, achieving 8.448 TFLOPS from its 4.224 TFLOPS FP32 baseline, while Ampere achieves 35.58 TFLOPS FP16 at a 1:1 ratio, meaning full-rate half-precision without any shader reconfiguration. The memory subsystems reflect different design goals: the Radeon Pro 5300's 128-bit bus with GDDR6 is suited for low-power integrated use, while the RTX 3090's 384-bit bus with GDDR6X targets maximum bandwidth for high-resolution textures and compute data sets. The Radeon Pro 5300's production status is end-of-life, as is the RTX 3090's, though the RTX 3090 has a defined predecessor (GeForce 20) and successor (GeForce 40), while the Radeon Pro 5300 lists none. The RTX 3090's 350 W TDP and triple-slot cooler stand in contrast to the Radeon Pro 5300's 85 W IGP design with no power connectors and no display outputs, making the AMD card a compute-only solution for tightly integrated systems. The API support shows DirectX 12 Ultimate on NVIDIA versus DirectX 12 (12_1) on AMD, while OpenGL 4.6 and Vulkan 1.4 are identical. Release dates are close—August 3, 2020 for AMD and August 31, 2020 for NVIDIA—but the architectural philosophies could not be more different: one is a compact, efficient, integrated compute unit, the other a sprawling, power-hungry desktop flagship.