AMD Radeon HD 8950M vs AMD Radeon RX 6500 XT Comparison

Head-to-Head Benchmarks

The two recorded head-to-head benchmark comparisons show a decisive victory for the AMD Radeon RX 6500 XT in both tests. In Geekbench OpenCL, the RX 6500 XT scores 48,289 against 13,772 for the HD 8950M, a delta of 71.5% in favor of the newer card. The Vulkan result is even more lopsided: 54,724 versus 12,979, a 76.3% advantage for the RX 6500 XT.

These are not marginal differences. The RX 6500 XT delivers roughly 3.5 times the OpenCL score and over 4 times the Vulkan score of the HD 8950M. The delta percentages reflect the magnitude of the generational gap, with the HD 8950M trailing by more than 70% in both API workloads. The data shows a complete sweep: winsA is 0, winsB is 2.

The average benchmark score tells a similar story, though with less extreme separation. The HD 8950M posts an average of 13,376, while the RX 6500 XT averages 11,842. This apparent contradiction with the head-to-head results is explained by the different benchmark suites each card was tested with. The HD 8950M only has two Geekbench entries, both compute-oriented, while the RX 6500 XT includes several Passmark tests with lower scores, pulling its average down.

Percentile rankings place both cards in the lower half of all GPUs, but with an interesting twist. The HD 8950M sits at the 54th percentile, while the RX 6500 XT sits at the 51st. Despite losing every head-to-head test, the older card ranks slightly higher relative to the entire database. This is likely due to the differing benchmark distributions and the fact that the RX 6500 XT has more diverse test results, including some very low DirectX scores.

Looking at nearest rivals for context, the HD 8950M's average of 13,376 is within 0.4% of the AMD Radeon Pro 555X (13,321), 0.2% above the AMD Radeon RX 5500M (13,356) and AMD FirePro M6100 (13,354), and 0.2% below the AMD Radeon Pro 555 (13,407). The RX 6500 XT's average of 11,842 is 1.9% above the AMD Radeon RX 7800 XT (11,627), 1.4% above the NVIDIA GeForce GTX 1660 (11,680), and 1.0% and 1.3% below the NVIDIA GeForce GTX 1080 (11,960) and GTX 960A (11,998), respectively.

FAQ

Q: Which GPU wins in Geekbench Vulkan performance?

A: The AMD Radeon RX 6500 XT wins decisively with a score of 54,724 compared to 12,979 for the AMD Radeon HD 8950M, a 76.3% advantage.

Q: How do the average benchmark scores compare between the two cards?

A: The HD 8950M has a higher average benchmark score at 13,376, while the RX 6500 XT averages 11,842. However, this does not reflect head-to-head results, where the RX 6500 XT wins both recorded tests.

Q: What is the percentile ranking of each GPU?

A: The HD 8950M ranks at the 54th percentile of all GPUs, while the RX 6500 XT ranks at the 51st percentile. Both sit near the middle of the database.

Q: Does the RX 6500 XT support ray tracing?

A: Yes, the RX 6500 XT includes 16 ray tracing cores as part of its RDNA 2.0 architecture. The HD 8950M has no ray tracing cores listed.

Q: What memory configurations do the two cards use?

A: The HD 8950M uses 2 GB of GDDR5 on a 128-bit bus with 88.00 GB/s bandwidth. The RX 6500 XT uses 4 GB of GDDR6 on a 64-bit bus with 143.9 GB/s bandwidth.

Q: Which GPU has a higher transistor density?

A: The RX 6500 XT has a transistor density of 50.5M per mm², far higher than the HD 8950M's 13.0M per mm². This reflects the newer 6 nm process versus 28 nm.

Architecture Differences

The architectural gap between these two GPUs spans two distinct eras of AMD design. The HD 8950M uses the Saturn chip built on GCN 2.0 architecture, fabricated on a 28 nm TSMC process. It packs 2,080 million transistors on a 160 mm² die, giving a density of 13.0 million transistors per mm². The RX 6500 XT uses the Navi 24 chip on RDNA 2.0 architecture, fabricated on a 6 nm TSMC process. It carries 5,400 million transistors on a smaller 107 mm² die, achieving 50.5 million transistors per mm².

The compute configuration differs substantially. The HD 8950M has 768 shading units, 48 texture mapping units, and 16 render output units. The RX 6500 XT has 1,024 shading units, 64 TMUs, and 32 ROPs. Additionally, the RX 6500 XT introduces 16 ray tracing cores, a feature entirely absent from the older GCN design.

Clock speeds reflect the process node advantage. The HD 8950M lists no base or boost clock, but its memory runs at 1375 MHz (5.5 Gbps effective). The RX 6500 XT runs at a 2310 MHz base, 2610 MHz game clock, and 2815 MHz boost, with memory at 2248 MHz (18 Gbps effective). The newer card's memory operates at more than three times the effective speed of the old GDDR5.

The bus interface also differs: the HD 8950M uses PCIe 3.0 x16, while the RX 6500 XT uses PCIe 4.0 x4. The newer card has a narrower physical link but benefits from the faster PCIe 4.0 standard. Display outputs on the HD 8950M are described as "Portable Device Dependent" since it is an MXM module, whereas the RX 6500 XT offers 1x HDMI 2.1 and 1x DisplayPort 1.4a.

API support shows the generational progression. The HD 8950M supports DirectX 12 (12_0), OpenGL 4.6, and Vulkan 1.2.170. The RX 6500 XT supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The newer card's DirectX 12 Ultimate feature set includes ray tracing and mesh shaders.

Specification Differences

The two cards differ across nearly every specification category. The process node moves from 28 nm to 6 nm, and transistor count more than doubles from 2,080 million to 5,400 million, while die size shrinks from 160 mm² to 107 mm². Transistor density jumps from 13.0M per mm² to 50.5M per mm².

Memory capacity doubles from 2 GB to 4 GB, and type advances from GDDR5 to GDDR6. Bus width narrows from 128 bit to 64 bit, but bandwidth increases from 88.00 GB/s to 143.9 GB/s thanks to much higher memory clocks. The effective memory speed rises from 5.5 Gbps to 18 Gbps.

Compute resources grow across the board. Shading units increase from 768 to 1,024, TMUs from 48 to 64, and ROPs from 16 to 32. The RX 6500 XT adds 16 ray tracing cores. Pixel rate jumps from 17.20 GPixel/s to 90.08 GPixel/s, and texture rate from 51.60 GTexel/s to 180.2 GTexel/s. FP32 compute rises from 1.651 TFLOPS to 5.765 TFLOPS, and the RX 6500 XT also lists FP16 performance of 11.53 TFLOPS (2:1).

Power specifications are close: the HD 8950M has a 100 W TDP, while the RX 6500 XT has a 107 W TDP. However, their form factors differ completely. The HD 8950M is an MXM Module with no power connectors listed and portable-device-dependent outputs. The RX 6500 XT is a Dual-slot card with a 1x 6-pin power connector and a suggested PSU of 300 W.

Release dates are nearly nine years apart. The HD 8950M launched in May 2013, while the RX 6500 XT launched in January 2022. Both are end-of-life products. The RX 6500 XT carries a launch MSRP of 199 USD.

Where Each One Wins

The RX 6500 XT wins in every direct benchmark comparison recorded. Its Geekbench OpenCL score of 48,289 is 71.5% higher than the HD 8950M's 13,772. Its Geekbench Vulkan score of 54,724 is 76.3% higher than the HD 8950M's 12,979. For anyone prioritizing raw compute performance in OpenCL or Vulkan workloads, the RX 6500 XT is the clear choice.

The RX 6500 XT also wins on architecture features. It offers ray tracing support, a much higher pixel rate (90.08 GPixel/s versus 17.20 GPixel/s), and more than triple the texture rate (180.2 GTexel/s versus 51.60 GTexel/s). Its FP32 throughput of 5.765 TFLOPS is roughly 3.5 times the HD 8950M's 1.651 TFLOPS.

The HD 8950M's advantages are narrower but measurable. It has a higher average benchmark score (13,376 versus 11,842) and a higher percentile ranking (54th versus 51st). Its PCIe 3.0 x16 interface provides a wider physical bus, though the RX 6500 XT's PCIe 4.0 x4 link offers higher per-lane bandwidth. The HD 8950M also has a lower TDP at 100 W versus 107 W, a marginal difference.

In terms of nearest rivals, the HD 8950M sits in a tight cluster of similar-performance GPUs, all within 0.4% of each other. The RX 6500 XT's nearest rivals include much higher-tier cards like the GTX 1080 and RX 7800 XT, but its average score is still within 1.9% of those products. This suggests the RX 6500 XT performs in a different league despite its modest average.

The Verdict

The data is unambiguous: the AMD Radeon RX 6500 XT is the superior GPU in direct comparison. It wins both head-to-head benchmarks by margins of 71.5% and 76.3%, offers more than triple the FP32 compute, and brings modern features like ray tracing and DirectX 12 Ultimate support. Its 4 GB GDDR6 memory with 143.9 GB/s bandwidth also more than doubles the HD 8950M's effective memory speed.

The HD 8950M retains some statistical advantages, including a higher average benchmark score and percentile ranking, but these stem from the limited and compute-focused nature of its benchmark entries. When both cards run the same tests, the RX 6500 XT dominates.

For users choosing between these two, the RX 6500 XT is the logical pick for any modern workload. Its Vulkan and OpenCL scores indicate strong compute capability, and its architecture includes features absent from the 2013-era GCN design. The HD 8950M might appeal to those with legacy MXM slots or very low power budgets, but the performance gap is too wide to justify it for general use.

The RX 6500 XT's nearest rival cluster includes the GTX 1080, GTX 1660, and RX 7800 XT, all within 1.9% of its average score. This places it in respectable company despite its low percentile ranking. The HD 8950M, by contrast, sits in a cluster of mid-range AMD professional and mobile GPUs from the same era.

In summary, the RX 6500 XT wins on every head-to-head metric, every architectural feature, and nearly every specification. The HD 8950M only leads in average benchmark score and percentile, which do not reflect direct comparisons. The verdict is clear: the RX 6500 XT is the performance winner, while the HD 8950M is a legacy part best suited to its original portable-device ecosystem.