AMD Radeon R9 M265X vs AMD Radeon RX 6500M Comparison

Head-to-Head Benchmarks

The database contains one directly comparable benchmark between these two mobile graphics solutions: Geekbench OpenCL. In that test, the AMD Radeon RX 6500M scored 38586, while the AMD Radeon R9 M265X scored 8851. The RX 6500M won with a delta of 336%, meaning it delivered more than four times the raw compute throughput of the older part. That is not a marginal improvement; it is a generational gap expressed in a single number.

The RX 6500M also holds additional recorded benchmarks that the R9 M265X does not have in the database. Its Geekbench Vulkan score is 43837. Passmark results for the RX 6500M include DirectX 10 at 52, DirectX 11 at 70, DirectX 12 at 34, DirectX 9 at 92, G2D at 385, G3D at 7531, and GPU compute at 2669. Meanwhile, the R9 M265X has only the single OpenCL result available. This means cross-validation of the older card is limited to that one workload, but the gap in the shared test is decisive.

The average benchmark score tells the same story. The RX 6500M averages 10362 across its recorded tests, placing it in the 48th percentile of all GPUs in the database. The R9 M265X averages 8851, placing it in the 44th percentile. While both sit in the middle of the overall distribution, the RX 6500M is clearly ahead. Its nearest rivals include the NVIDIA Tesla C2075 at 10400 (a delta of -0.4%), the AMD Radeon RX 550X at 10481 (delta -1.1%), and the AMD Radeon R9 M275X at 10582 (delta -2.1%). The R9 M265X, by contrast, sits near the AMD Radeon Pro WX 5100 at 8863 (delta -0.1%) and the AMD Radeon 550X at 8918 (delta -0.8%). The delta between the two cards in this comparison is far larger than the delta between either card and its own nearest rivals.

Where Each One Wins

The RX 6500M wins in every measurable category where both cards have data. The OpenCL result is the only direct head-to-head, and it is a landslide. In practical terms, this means the RX 6500M is the choice for any workload that offloads compute to the GPU, whether that is OpenCL-based rendering, physics simulation, or other general-purpose compute tasks. Its Vulkan score of 43837 also suggests strong modern API performance, though the R9 M265X has no Vulkan benchmark recorded in the database for comparison.

The R9 M265X does not win any recorded benchmark. However, it is not without context. Its architecture is older, its feature set is narrower, and its recorded data is sparse. For users constrained to legacy software or systems that cannot accept a modern card, the R9 M265X still functions, but the data does not show any workload where it outperforms the RX 6500M. The RX 6500M wins the only shared test, and its additional benchmark scores indicate broad competence across DirectX 9, 10, 11, and 12, plus compute and 2D workloads.

Architecture Differences

The RX 6500M uses the Navi 24 chip built on RDNA 2.0 architecture, fabricated on a 6 nm process at TSMC. It packs 5,400 million transistors into a 107 mm² die, yielding a transistor density of 50.5 million per square millimeter. The R9 M265X uses the Venus chip on GCN 1.0 architecture, also from TSMC but on a much older 28 nm process. It contains 1,500 million transistors on a 123 mm² die, giving a density of just 12.2 million per square millimeter. The process node difference alone explains a great deal of the performance gap: the RX 6500M crams more than three times the transistors into a smaller physical area.

The RX 6500M includes 16 ray tracing cores, a feature entirely absent from the R9 M265X. It also supports DirectX 12 Ultimate (12_2), while the R9 M265X is limited to DirectX 12 (11_1). Vulkan support differs as well: the RX 6500M supports Vulkan 1.4, whereas the R9 M265X supports Vulkan 1.2.170. Both cards support OpenGL 4.6. The RX 6500M belongs to the Radeon RX 6000 series and the Navi Mobile generation (RX 6000M), while the R9 M265X belongs to the Gem System generation (R9 M200). The RX 6500M lists its predecessor as Polaris Mobile, while the R9 M265X lists its predecessor as Solar System and its successor as Polaris Mobile, meaning the RX 6500M effectively descends from the product line the R9 M265X started.

Specification Differences

The RX 6500M has 1024 shading units, 64 texture mapping units, and 32 raster operation pipelines. The R9 M265X has 640 shading units, 40 TMUs, and 16 ROPs. Clock speeds differ dramatically. The RX 6500M runs at a base clock of 2000 MHz, a boost of 2400 MHz, and a game clock of 2191 MHz. The R9 M265X runs at 575 MHz base and 625 MHz boost. Memory speeds are also far apart: the RX 6500M uses 2250 MHz memory with 18 Gbps effective speed, while the R9 M265X uses 1000 MHz memory with 4 Gbps effective speed.

Memory capacity and bandwidth favor the RX 6500M. It has 4 GB of GDDR6 on a 64 bit bus, delivering 144.0 GB/s. The R9 M265X has 2 GB of GDDR5 on a 128 bit bus, delivering 64.00 GB/s. Interestingly, the R9 M265X has a wider bus, but the much faster memory technology and higher clock of the RX 6500M more than compensate. The RX 6500M achieves a pixel rate of 76.80 GPixel/s and a texture rate of 153.6 GTexel/s. The R9 M265X manages 10.00 GPixel/s and 25.00 GTexel/s. FP32 throughput is 4.915 TFLOPS for the RX 6500M versus 800.0 GFLOPS for the R9 M265X. The RX 6500M also records FP16 performance of 9.830 TFLOPS (2:1), while the R9 M265X has no FP16 figure in the database.

Power and interface specifications differ as well. The RX 6500M has a TDP of 50 W, uses an IGP slot width, has no power connectors, and connects via PCIe 4.0 x4. The R9 M265X has no TDP listed, no slot width, no power connector details, and uses PCIe 3.0 x16. The RX 6500M lists display outputs as portable device dependent, while the R9 M265X has no display output information recorded. The RX 6500M was released on 2022-01-03, while the R9 M265X was released on 2014-03-20. Both are end-of-life products. Neither has a launch MSRP in the database.

FAQ

Q: Which card is faster in OpenCL compute?

A: The AMD Radeon RX 6500M scored 38586 in Geekbench OpenCL, while the AMD Radeon R9 M265X scored 8851. That is a 336% advantage for the RX 6500M.

Q: Does the R9 M265X support ray tracing?

A: No. The RX 6500M has 16 ray tracing cores, while the R9 M265X has none listed in the database.

Q: What DirectX versions do these cards support?

A: The RX 6500M supports DirectX 12 Ultimate (12_2). The R9 M265X supports DirectX 12 (11_1). Both support OpenGL 4.6.

Q: How do their memory configurations compare?

A: The RX 6500M has 4 GB of GDDR6 on a 64 bit bus with 144.0 GB/s bandwidth. The R9 M265X has 2 GB of GDDR5 on a 128 bit bus with 64.00 GB/s bandwidth.

Q: What is the process node difference?

A: The RX 6500M is built on a 6 nm process at TSMC. The R9 M265X is built on a 28 nm process, also at TSMC.

Q: Are both cards still in production?

A: No. Both are listed as end-of-life products in the database.

The Verdict

The data points to one clear conclusion: the AMD Radeon RX 6500M is the superior part by every recorded metric. Its OpenCL score is 336% higher than the R9 M265X. Its average benchmark score of 10362 versus 8851 places it higher in the overall GPU distribution, at the 48th percentile compared to the 44th. It has more shading units, more TMUs, more ROPs, higher clocks, faster memory, more memory capacity, and a newer architecture with ray tracing and modern API support.

The R9 M265X is a legacy part. Released in 2014, built on GCN 1.0 and a 28 nm process, it offers 800.0 GFLOPS of FP32 throughput and 64.00 GB/s of memory bandwidth. Those numbers were respectable for its era, but the RX 6500M delivers 4.915 TFLOPS and 144.0 GB/s. The only area where the R9 M265X exceeds the RX 6500M is bus width, 128 bit versus 64 bit, and that does not translate into any performance advantage in the recorded benchmarks.

Who should pick the RX 6500M? Anyone who needs a modern mobile GPU for compute workloads, DirectX 12 Ultimate titles, or Vulkan applications. Its 50 W TDP and IGP form factor make it suitable for thin-and-light laptops, and its 4 GB GDDR6 memory is adequate for its intended resolution and detail targets. Who should pick the R9 M265X? Only someone maintaining a legacy system that cannot accept a newer card, or who needs GCN 1.0 compatibility for very old software. The benchmark database shows no workload where the R9 M265X wins. For any new purchase or upgrade, the RX 6500M is the only defensible choice.