AMD Radeon Pro WX 2100 vs AMD Radeon RX 6500M Comparison

The AMD Radeon RX 6500M and the AMD Radeon Pro WX 2100 represent two distinct eras of mobile and workstation graphics, separated by nearly five years of architectural evolution. The RX 6500M is a modern RDNA 2.0 part targeting thin-and-light gaming laptops, while the Pro WX 2100 is a Polaris-era professional card for entry-level CAD and ISV work. Benchmark data shows a massive performance gulf favoring the newer part, yet the older card retains specific professional attributes that the RX 6500M lacks. The following analysis breaks down where each GPU wins, answers common questions, and details the technical specifications that separate them.

Where Each One Wins

The AMD Radeon RX 6500M wins decisively in every benchmark category where both cards have been tested. In Geekbench OpenCL compute, the RX 6500M scores 38586 against the Pro WX 2100's 8536, a 352% advantage. In Geekbench Vulkan, the RX 6500M posts 43837 versus 10770, a 307% lead. These are not marginal wins; they represent a generational leap in raw throughput. The RX 6500M's victory extends across all aspects of GPU workload: pixel fill, texture filtering, shader math, and API compatibility.

The AMD Radeon Pro WX 2100's only conceptual wins are in areas not captured by the head-to-head benchmark set. It is a single-slot, 168 mm card with a 35 W TDP and no power connectors, making it physically easier to install in a desktop workstation chassis. It offers dedicated DisplayPort 1.4a outputs (one full-size, two mini), whereas the RX 6500M's display outputs are "Portable Device Dependent," meaning the mobile chip relies entirely on laptop manufacturers to route signals. The Pro WX 2100 also carries a professional Radeon Pro brand identity, suggesting driver validation for CAD applications, though no specific ISV benchmark data exists in the fact pack to quantify that advantage.

In terms of performance percentiles, the RX 6500M sits at the 48th percentile of all GPUs tested, while the Pro WX 2100 sits at the 46th percentile. Despite the 352% delta in OpenCL, both cards are near the middle of the overall GPU distribution, which indicates that the RX 6500M is itself a modest performer by absolute standards. The average benchmark score for the RX 6500M is 10362, versus 9653 for the Pro WX 2100. The RX 6500M's nearest rival, the NVIDIA Tesla C2075, scores 10400 (a -0.4% delta), while the Pro WX 2100's nearest rival, the NVIDIA GeForce GTX 960M, scores 9645 (a 0.1% delta). This shows the RX 6500M trading blows with a decade-old compute card, while the Pro WX 2100 is essentially tied with a mid-range laptop GPU from the same era.

FAQ

Q: Which GPU has higher raw compute performance in OpenCL?

A: The AMD Radeon RX 6500M dominates, scoring 38586 in Geekbench OpenCL versus 8536 for the AMD Radeon Pro WX 2100, a 352% advantage.

Q: Are both cards suitable for modern DirectX 12 Ultimate titles?

A: No. The RX 6500M supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, while the Pro WX 2100 only supports DirectX 12 (12_0) and Vulkan 1.3. The RX 6500M also has 16 dedicated ray tracing cores, which the Pro WX 2100 lacks entirely.

Q: How do their memory subsystems compare?

A: The RX 6500M has 4 GB of GDDR6 on a 64-bit bus delivering 144.0 GB/s bandwidth. The Pro WX 2100 has 2 GB of GDDR5 on a 64-bit bus delivering 48.00 GB/s. The RX 6500M offers three times the memory bandwidth.

Q: Which card has better Vulkan performance?

A: The RX 6500M scores 43837 in Geekbench Vulkan, compared to 10770 for the Pro WX 2100, a 307% lead for the RDNA 2.0 part.

Q: What are the physical size differences?

A: The Pro WX 2100 is a single-slot card measuring 168 mm (6.6 inches) in length and 69 mm (2.7 inches) in height. The RX 6500M is an IGP (integrated graphics processor) designed for mobile laptops, with no standalone dimensions listed.

Q: Which card supports more display outputs?

A: The Pro WX 2100 has three dedicated outputs: 1x DisplayPort 1.4a and 2x mini-DisplayPort 1.4a. The RX 6500M's outputs are described as "Portable Device Dependent," meaning they are not fixed and depend on laptop design.

Head-to-Head Benchmarks

The head-to-head data is stark and one-sided. In Geekbench OpenCL, the RX 6500M scores 38586, which is exactly 352% higher than the Pro WX 2100's 8536. This indicates a compute advantage of more than a factor of four. The OpenCL test measures general-purpose GPU computation, including floating-point math, memory access patterns, and kernel execution. The RX 6500M's FP32 throughput is 4.915 TFLOPS, compared to 1,248.3 GFLOPS for the Pro WX 2100, which explains the bulk of the difference. The RX 6500M also has 1024 shading units versus 512, and 64 TMUs versus 32, effectively doubling the parallel execution width.

In Geekbench Vulkan, the gap narrows slightly in percentage terms but remains enormous in absolute points. The RX 6500M scores 43837, beating the Pro WX 2100's 10770 by 307%. Vulkan is a lower-level API that can expose efficiency advantages; the RX 6500M's newer RDNA 2.0 architecture with 16 ray tracing cores likely contributes to its stronger scaling in this test. The Pro WX 2100's GCN 4.0 architecture, while competent, was designed before Vulkan became mainstream and lacks the dedicated hardware features of the newer chip.

The RX 6500M has 2 wins out of 2 head-to-head tests, and the Pro WX 2100 has 0 wins. This is a clean sweep, but the margin of victory is so large that it suggests the Pro WX 2100 is not a direct competitor in any compute or gaming scenario. The Pro WX 2100's only benchmark scores in the fact pack are the two Geekbench tests; there are no PassMark scores listed for it, which limits comparison to those two workloads. The RX 6500M, by contrast, has PassMark scores for DirectX 9 (92), DirectX 10 (52), DirectX 11 (70), DirectX 12 (34), G2D (385), G3D (7531), and GPU compute (2669). These additional scores show the RX 6500M's strength in legacy DirectX 9 workloads (92) and its relative weakness in DirectX 12 (34), a pattern typical of entry-level RDNA 2.0 parts.

Specification Differences

The two GPUs diverge across nearly every specification category. The RX 6500M uses a 6 nm TSMC process, while the Pro WX 2100 uses a 14 nm GlobalFoundries process. Transistor counts differ significantly: 5,400 million for the RX 6500M versus 2,200 million for the Pro WX 2100. Die sizes are similar (107 mm² vs 103 mm²), but transistor density is more than double on the RX 6500M (50.5M / mm² vs 21.4M / mm²).

Clock speeds show the architectural gap. The RX 6500M has a base clock of 2000 MHz, a boost clock of 2400 MHz, and a game clock of 2191 MHz. The Pro WX 2100 has a base clock of 925 MHz and a boost clock of 1219 MHz, with no game clock specified. Memory clocks are also different: the RX 6500M runs at 2250 MHz (18 Gbps effective), while the Pro WX 2100 runs at 1500 MHz (6 Gbps effective).

Memory capacity and type are major differentiators: 4 GB of GDDR6 versus 2 GB of GDDR5. Both use a 64-bit bus, but bandwidth is 144.0 GB/s versus 48.00 GB/s. The RX 6500M has double the shading units (1024 vs 512), double the TMUs (64 vs 32), and double the ROPs (32 vs 16). The RX 6500M also has 16 ray tracing cores, which the Pro WX 2100 lacks entirely.

Pixel and texture rates reflect the clock and unit advantages: the RX 6500M delivers 76.80 GPixel/s and 153.6 GTexel/s, versus 19.50 GPixel/s and 39.01 GTexel/s for the Pro WX 2100. FP32 output is 4.915 TFLOPS versus 1,248.3 GFLOPS. FP16 performance is 9.830 TFLOPS (2:1 ratio) on the RX 6500M, while the Pro WX 2100 offers 1,248.3 GFLOPS (1:1 ratio), meaning the RX 6500M can double its throughput in packed math workloads.

Power and physical specs differ substantially. The RX 6500M has a TDP of 50 W and is an IGP (integrated graphics processor), while the Pro WX 2100 has a TDP of 35 W and is a single-slot card. The Pro WX 2100 has a suggested PSU of 200 W; the RX 6500M has no suggested PSU listed. Neither card requires power connectors. The bus interface is PCIe 4.0 x4 for the RX 6500M versus PCIe 3.0 x8 for the Pro WX 2100. The Pro WX 2100 measures 168 mm by 69 mm, while the RX 6500M has no dimensions listed.

Architecture Differences

The architectural divide is fundamental. The RX 6500M is built on RDNA 2.0 with the Navi 24 chip, part of the Navi Mobile (RX 6000M) generation. The Pro WX 2100 uses GCN 4.0 with the Lexa chip, part of the Radeon Pro Polaris (WX x100) generation. RDNA 2.0 represents a major redesign of AMD's GPU core, with a focus on higher clocks and better power efficiency, while GCN 4.0 is the mature iteration of AMD's Graphics Core Next design that debuted several years earlier.

The process node difference is 6 nm versus 14 nm, which allows the RX 6500M to pack 5,400 million transistors into 107 mm², achieving a density of 50.5M / mm². The Pro WX 2100's 2,200 million transistors occupy 103 mm², yielding just 21.4M / mm². This density advantage is the primary enabler of the RX 6500M's higher clock speeds and larger execution resources.

The RX 6500M includes 16 ray tracing cores, a feature entirely absent from the Pro WX 2100. This is a defining architectural difference: RDNA 2.0 integrates fixed-function ray tracing hardware, while GCN 4.0 predates that technology. The RX 6500M also supports DirectX 12 Ultimate (12_2), which includes features like variable rate shading and mesh shaders, whereas the Pro WX 2100 is limited to DirectX 12 (12_0). Vulkan support is 1.4 on the RX 6500M versus 1.3 on the Pro WX 2100.

The generation names tell the story: the RX 6500M is listed as "Navi Mobile (RX 6000M)" with a predecessor of "Polaris Mobile," while the Pro WX 2100 is "Radeon Pro Polaris (WX x100)" with a predecessor of "Radeon Pro GCN" and a successor of "Radeon Pro Vega." The RX 6500M was released on 2022-01-03, and the Pro WX 2100 on 2017-06-03. Both are end-of-life products. The Pro WX 2100 has a launch MSRP of 149 USD; the RX 6500M has no MSRP listed.

The FP16 capability is a notable architectural difference: the RX 6500M achieves 9.830 TFLOPS at a 2:1 ratio (double the FP32 rate), while the Pro WX 2100 offers 1,248.3 GFLOPS at a 1:1 ratio (same as FP32). This means the RX 6500M can accelerate half-precision workloads, a feature increasingly relevant for AI inference and some compute tasks, whereas the Pro WX 2100 cannot. The RX 6500M's 144.0 GB/s memory bandwidth is exactly three times the Pro WX 2100's 48.00 GB/s, which is critical for feeding the larger shading unit count and higher texture fill rate.