AMD Radeon RX 5300M vs AMD Radeon RX Vega 64 Comparison

Head-to-Head Benchmarks

The only direct benchmark comparison in the database is Geekbench OpenCL, and the result is decisive. The AMD Radeon RX Vega 64 scores 62,552, while the AMD Radeon RX 5300M scores 36,529. That is a 71.2% advantage for the Vega 64, a massive gap that reflects the fundamental positioning of these two cards.

To put that into perspective, the Vega 64's average benchmark score across all recorded tests is 50,001. The RX 5300M's average is 36,529, which is exactly its single OpenCL result. The Vega 64 sits at the 86th percentile among all GPUs in the database, while the 5300M sits at the 80th percentile. Despite the wide performance gap, both cards are above the midpoint of the GPU field, though the Vega 64 is clearly closer to the top tier.

Looking at the nearest rivals for each card reinforces the gap. The Vega 64's closest competitor is the NVIDIA GeForce RTX 5070 Ti, which averages 49,957, a mere 0.1% difference. The Intel Arc A550M is also close at 49,737, just 0.5% behind. The Vega 64 also edges out the AMD Radeon RX 6900 XT by 1.9% and leads the RX 6800 XT by 3.1%. These are all high-end desktop or powerful mobile parts, and the Vega 64 trades blows with them.

The RX 5300M, by contrast, competes in a much lower performance tier. Its nearest rival is the NVIDIA GeForce GTX TITAN X, which scores 36,530, essentially identical at a 0% delta. The NVIDIA T1000 is 0.7% behind, the AMD Radeon PRO W6400 is 1.7% ahead, and the AMD Radeon Pro Duo is 1.9% behind. The 5300M is firmly in the midrange laptop GPU segment, nowhere near the Vega 64's league.

In the head-to-head test, the Vega 64 wins the only recorded comparison. It is the faster card by a wide margin, and the data leaves no ambiguity about that.

Where Each One Wins

The Vega 64 wins in raw compute performance. Its Geekbench OpenCL score of 62,552 versus 36,529 is a 71.2% lead, which translates directly to faster results in OpenCL-accelerated workloads such as rendering, video processing, and general GPU compute tasks. The Vega 64 also has a much higher FP32 throughput of 12.66 TFLOPS compared to the 5300M's 4.069 TFLOPS, meaning it can process more floating-point operations per second in applications that use that path.

The RX 5300M wins in efficiency and physical footprint. Its TDP is 85 W versus 295 W for the Vega 64, so it draws far less power and generates less heat. It requires no external power connectors, while the Vega 64 needs two 8-pin connectors. The 5300M is a mobile part, designed for laptops, so it fits into systems where a dual-slot, 280 mm long desktop card like the Vega 64 would never fit. The 5300M also uses a PCIe 4.0 x8 interface, which is newer than the Vega 64's PCIe 3.0 x16, though the Vega 64's x16 link offers more lanes.

For gaming at high resolutions or with demanding settings, the Vega 64's higher pixel rate (98.94 GPixel/s versus 46.24 GPixel/s) and texture rate (395.8 GTexel/s versus 127.2 GTexel/s) give it a clear edge. The 5300M is better suited for lighter gaming or productivity in a thin-and-light laptop, where its lower power draw is a major advantage.

Architecture Differences

The Vega 64 uses the Vega 10 chip built on GCN 5.0 architecture, fabricated on a 14 nm process at GlobalFoundries. The RX 5300M uses the Navi 14 chip built on RDNA 1.0 architecture, fabricated on a 7 nm process at TSMC. This is a generational shift: the Vega 64 is from the Vega generation, while the 5300M belongs to the Navi Mobile generation within the RX 5000 series.

The transistor counts differ significantly. The Vega 10 chip packs 12,500 million transistors on a 495 mm² die, giving a transistor density of 25.3 million per square millimeter. The Navi 14 chip has 6,400 million transistors on a 158 mm² die, achieving a density of 40.5 million per square millimeter. The 7 nm process allows the Navi 14 to pack transistors more densely, but the Vega 10 has nearly twice the total transistor count.

The Vega 64 has 4,096 shading units, 256 texture mapping units, and 64 ROPs. The RX 5300M has 1,408 shading units, 88 TMUs, and 32 ROPs. The Vega 64 has far more compute resources across the board, which explains its large performance lead.

Memory architecture is also fundamentally different. The Vega 64 uses 8 GB of HBM2 on a 2048-bit bus, yielding 483.8 GB/s of bandwidth. The RX 5300M uses 3 GB of GDDR6 on a 96-bit bus, yielding 168.0 GB/s. The Vega 64's memory bandwidth is nearly three times higher, which matters greatly for high-resolution textures and bandwidth-hungry compute workloads.

Both cards support DirectX 12 (12_1) and OpenGL 4.6. The Vega 64 supports Vulkan 1.3, while the 5300M supports Vulkan 1.4. Neither card has dedicated ray tracing or tensor cores, so those features are absent from both.

Specification Differences

The Vega 64 has a base clock of 1247 MHz and a boost clock of 1546 MHz. The RX 5300M has a base clock of 1000 MHz, a boost clock of 1445 MHz, and a game clock of 1181 MHz. The Vega 64 runs at higher clocks and has far more compute units behind them.

Memory clocks differ as well. The Vega 64's memory runs at 945 MHz with 1890 Mbps effective, while the 5300M's memory runs at 1750 MHz with 14 Gbps effective. The 5300M's memory is faster per pin, but the Vega 64's much wider bus and higher total bandwidth give it the overall advantage.

The Vega 64 has a TDP of 295 W and requires a 600 W suggested power supply. The 5300M has a TDP of 85 W and no listed power supply requirement. The Vega 64 is dual-slot with dimensions of 280 mm in length, 111 mm in height, and 40 mm in width. The 5300M has no listed dimensions, as it is a mobile part.

The Vega 64 has display outputs of 1x HDMI 2.0b and 3x DisplayPort 1.4a. The 5300M's display outputs are listed as "Portable Device Dependent," meaning they vary by laptop implementation. The Vega 64 uses PCIe 3.0 x16, while the 5300M uses PCIe 4.0 x8.

The Vega 64 was released on 2017-08-06 with a launch MSRP of 499 USD. The RX 5300M was released on 2019-11-12 with no recorded launch MSRP. The Vega 64's predecessor is Polaris and its successor is Navi. The 5300M's predecessor is Polaris Mobile and it has no recorded successor. Both cards are end-of-life in production status.

FAQ

Q: Which card is faster in OpenCL compute?

A: The AMD Radeon RX Vega 64 scores 62,552 in Geekbench OpenCL, which is 71.2% higher than the RX 5300M's 36,529. The Vega 64 wins the only head-to-head benchmark recorded.

Q: How do these cards compare to their nearest rivals?

A: The Vega 64 is within 0.1% of the NVIDIA GeForce RTX 5070 Ti and 0.5% of the Intel Arc A550M, while leading the RX 6900 XT by 1.9% and the RX 6800 XT by 3.1%. The RX 5300M is essentially tied with the NVIDIA GeForce GTX TITAN X at a 0% delta, and sits within 1.9% of the AMD Radeon Pro Duo.

Q: Which card has more memory bandwidth?

A: The Vega 64 has 483.8 GB/s of bandwidth from 8 GB of HBM2 on a 2048-bit bus. The RX 5300M has 168.0 GB/s from 3 GB of GDDR6 on a 96-bit bus. The Vega 64 offers nearly three times the bandwidth.

Q: What are the power requirements for each card?

A: The Vega 64 has a TDP of 295 W, requires a 600 W suggested power supply, and uses 2x 8-pin power connectors. The RX 5300M has a TDP of 85 W and requires no external power connectors.

Q: Which card is better for a laptop?

A: The RX 5300M is a mobile GPU with an 85 W TDP and no listed dimensions, designed for portable systems. The Vega 64 is a dual-slot desktop card measuring 280 mm in length, so it cannot fit in a laptop.

Q: Do either of these cards support ray tracing?

A: No. Neither the Vega 64 nor the RX 5300M has dedicated ray tracing cores listed in the database.

The Verdict

The AMD Radeon RX Vega 64 is the clear performance winner. It beats the RX 5300M by 71.2% in OpenCL, has 3.1 times the memory bandwidth, and offers dramatically higher pixel and texture rates. Its average benchmark score of 50,001 places it at the 86th percentile, and it trades blows with modern high-end cards like the RTX 5070 Ti and RX 6900 XT. For desktop users who need maximum compute performance, the Vega 64 is the obvious choice, provided the system can handle its 295 W TDP and dual-slot footprint.

The RX 5300M is the efficiency and mobility pick. Its 85 W TDP, lack of external power connectors, and mobile design make it suitable for laptops where power draw and space are constrained. It still performs respectably, sitting at the 80th percentile and matching the GTX TITAN X, but it cannot match the Vega 64's raw throughput.

Choose the Vega 64 for desktop workloads where performance is paramount. Choose the RX 5300M for a portable system where power efficiency is the priority. The data does not support any other conclusion.