AMD Radeon RX 6950 XT vs NVIDIA RTX A4500 Mobile Comparison

Head-to-Head Benchmarks

The benchmark data shows a decisive advantage for the AMD Radeon RX 6950 XT in the two common workloads recorded for both GPUs. In Geekbench OpenCL, the AMD part scores 205,998 against the NVIDIA RTX A4500 Mobile’s 105,307, a delta of 48.9 percent in AMD’s favor. That is not a marginal gap; it is a near-doubling of raw compute throughput in a test that stresses general-purpose GPU performance.

The Vulkan results tell a similar story. The RX 6950 XT posts 165,212, while the RTX A4500 Mobile manages 76,960. The delta here is even larger at 53.4 percent. For any workload that relies on Vulkan’s low-level API access, the AMD card holds a commanding lead. The recorded data gives the AMD part both head-to-head wins, and the margin in each case is substantial enough to define the competitive relationship between these two products.

The RTX A4500 Mobile’s average benchmark score across all recorded tests sits at 91,134, which places it in the 93rd percentile of all GPUs in the database. The RX 6950 XT, by contrast, has an average score of 58,392 and sits in the 88th percentile. This apparent contradiction, where the AMD card wins the two shared tests yet has a lower overall average, reflects the different benchmark suites recorded for each product. The RX 6950 XT’s average is dragged down by a set of PassMark tests that include legacy DirectX 9 and DirectX 10 workloads, where scores of 303 and 164 respectively are far below its modern API results. The RTX A4500 Mobile’s average is based on a smaller set of tests, all of which are modern API workloads.

Looking at the nearest rival data for each card provides additional context. The RTX A4500 Mobile’s closest competitor is the desktop NVIDIA RTX A4500, which averages 91,671, just 0.6 percent higher. The AMD Radeon Instinct MI60 sits 1.4 percent above at 92,466, while the NVIDIA Quadro GP100 trails by 4.2 percent at 87,445. The AMD Radeon PRO W7600 is 4.6 percent behind at 87,108. These are tight margins, indicating that the RTX A4500 Mobile is positioned within a cluster of prosumer and workstation GPUs where performance differences are small.

The RX 6950 XT’s nearest rivals are a different class of product altogether. The NVIDIA P102-100 averages 58,528, just 0.2 percent ahead. The Intel Arc A570M scores 58,239, 0.3 percent behind. The AMD Radeon PRO V710 is 0.5 percent ahead at 58,657, and the AMD Radeon RX 5600 OEM is 0.5 percent behind at 58,085. This grouping around the 58,000 to 58,700 mark suggests that the RX 6950 XT’s average, while lower than the RTX A4500 Mobile’s, is not an outlier within its own performance class. The two cards are simply measured against different competitive sets.

The single biggest takeaway from the head-to-head data is the scale of the RX 6950 XT’s victory in shared tests. A 48.9 percent lead in OpenCL and a 53.4 percent lead in Vulkan are not incremental improvements. They represent a fundamentally higher level of compute throughput in these specific workloads. The RTX A4500 Mobile does not have a single recorded benchmark where it outperforms the AMD card.

Architecture Differences

The two GPUs come from different architectural lineages and different manufacturing processes. The NVIDIA RTX A4500 Mobile uses the GA104 chip built on Samsung’s 8 nm process, while the AMD Radeon RX 6950 XT uses the Navi 21 chip fabricated by TSMC on a 7 nm node. The process difference matters: the AMD chip packs 26,800 million transistors into a 520 mm² die, achieving a transistor density of 51.5 million per square millimeter. The NVIDIA chip contains 17,400 million transistors on a 392 mm² die, for a density of 44.4 million per square millimeter. The AMD design is both larger and denser.

Core counts differ significantly. The RTX A4500 Mobile has 5,888 shading units, 184 texture mapping units, and 96 raster operation units. The RX 6950 XT has fewer shading units at 5,120, but far more TMUs at 320 and more ROPs at 128. The AMD card also carries 80 ray accelerators, while the NVIDIA part has 46 RT cores. On the tensor core front, the RTX A4500 Mobile includes 184 tensor cores; the RX 6950 XT has no equivalent hardware, as RDNA 2 does not feature dedicated tensor cores.

Clock speeds are radically different. The RTX A4500 Mobile runs at a 930 MHz base and 1500 MHz boost. The RX 6950 XT starts at 1860 MHz base, boosts to 2310 MHz, and has a game clock of 2100 MHz. This clock advantage, combined with the higher TMU and ROP counts, drives the AMD card’s far higher texture rate of 739.2 GTexel/s versus 276.0 GTexel/s for the NVIDIA part. Pixel rate tells a similar story: 295.7 GPixel/s for AMD versus 144.0 GPixel/s for NVIDIA.

Memory configurations share the same capacity and bus width: both have 16 GB of GDDR6 on a 256 bit interface. The RX 6950 XT runs its memory at 2250 MHz with an effective data rate of 18 Gbps, yielding 576.0 GB/s of bandwidth. The RTX A4500 Mobile runs at 2000 MHz with 16 Gbps effective, producing 512.0 GB/s. The AMD card has a 12.5 percent bandwidth advantage.

Compute throughput numbers follow the clock and core differences. The RX 6950 XT delivers 23.65 TFLOPS of FP32 performance, while the RTX A4500 Mobile delivers 17.66 TFLOPS. In FP16, the AMD card reaches 47.31 TFLOPS using a 2:1 ratio, while the NVIDIA part matches its FP32 figure at 17.66 TFLOPS with a 1:1 ratio. The AMD card’s FP16 advantage is substantial, though the NVIDIA card’s tensor cores can accelerate certain AI workloads that the AMD hardware cannot handle in the same way.

Power and physical design diverge sharply. The RTX A4500 Mobile has a 140 W TDP and uses no external power connectors, reflecting its mobile positioning. The RX 6950 XT is a desktop card with a 335 W TDP, a triple-slot cooler, two 8-pin power connectors, and a suggested 700 W power supply. The RX 6950 XT measures 267 mm in length, 120 mm in height, and 50 mm in width. The RTX A4500 Mobile’s dimensions are not recorded in the database because they depend on the portable device implementation.

Both cards support PCIe 4.0 x16, DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The RX 6950 XT provides 1x HDMI 2.1 and 2x DisplayPort 1.4a outputs, while the RTX A4500 Mobile’s display outputs are listed as portable device dependent.

FAQ

Q: Which GPU wins in Geekbench OpenCL?

A: The AMD Radeon RX 6950 XT wins with a score of 205,998 against 105,307 for the NVIDIA RTX A4500 Mobile, a 48.9 percent lead.

Q: How large is the Vulkan performance gap?

A: The RX 6950 XT scores 165,212 in Geekbench Vulkan, while the RTX A4500 Mobile scores 76,960. That is a 53.4 percent difference in favor of AMD.

Q: Do both cards have the same memory capacity?

A: Yes, both have 16 GB of GDDR6 on a 256 bit bus. The RX 6950 XT has higher bandwidth at 576.0 GB/s versus 512.0 GB/s for the RTX A4500 Mobile.

Q: What is the TDP difference?

A: The RTX A4500 Mobile has a 140 W TDP with no external power connectors. The RX 6950 XT has a 335 W TDP, requires 2x 8-pin power connectors, and suggests a 700 W power supply.

Q: Which card has more shading units?

A: The RTX A4500 Mobile has 5,888 shading units, more than the RX 6950 XT’s 5,120. However, the RX 6950 XT has more TMUs (320 versus 184) and more ROPs (128 versus 96).

Q: Are there any benchmarks where the RTX A4500 Mobile wins?

A: In the recorded head-to-head tests, no. The RX 6950 XT wins both shared benchmarks, with no recorded wins for the RTX A4500 Mobile.

Specification Differences

| Specification | NVIDIA RTX A4500 Mobile | AMD Radeon RX 6950 XT |

|---|---|---|

| Architecture | Ampere | RDNA 2.0 |

| Process node | 8 nm (Samsung) | 7 nm (TSMC) |

| Transistors | 17,400 million | 26,800 million |

| Die size | 392 mm² | 520 mm² |

| Transistor density | 44.4M / mm² | 51.5M / mm² |

| Base clock | 930 MHz | 1860 MHz |

| Boost clock | 1500 MHz | 2310 MHz |

| Game clock | None recorded | 2100 MHz |

| Memory clock | 2000 MHz / 16 Gbps effective | 2250 MHz / 18 Gbps effective |

| Memory bandwidth | 512.0 GB/s | 576.0 GB/s |

| Shading units | 5888 | 5120 |

| TMUs | 184 | 320 |

| ROPs | 96 | 128 |

| RT cores | 46 | 80 |

| Tensor cores | 184 | None |

| Pixel rate | 144.0 GPixel/s | 295.7 GPixel/s |

| Texture rate | 276.0 GTexel/s | 739.2 GTexel/s |

| FP32 | 17.66 TFLOPS | 23.65 TFLOPS |

| FP16 | 17.66 TFLOPS (1:1) | 47.31 TFLOPS (2:1) |

| TDP | 140 W | 335 W |

| Slot width | Portable device dependent | Triple-slot |

| Power connectors | None | 2x 8-pin |

| Suggested PSU | None recorded | 700 W |

| Display outputs | Portable Device Dependent | 1x HDMI 2.1, 2x DisplayPort 1.4a |

| Dimensions | Portable device dependent | 267 mm x 120 mm x 50 mm |

| Release date | 2022-03-21 | 2022-05-09 |

| Predecessor | Quadro Turing-M | Navi |

| Successor | Ada-MW | Navi III |

Where Each One Wins

The AMD Radeon RX 6950 XT wins in raw compute throughput. Its OpenCL and Vulkan scores are roughly double those of the RTX A4500 Mobile, and its FP32, FP16, pixel rate, and texture rate figures are all higher. For users running compute-heavy workloads that can leverage OpenCL or Vulkan, the RX 6950 XT is the clear choice based on the recorded data. Its higher memory bandwidth also gives it an edge in bandwidth-sensitive tasks.

The NVIDIA RTX A4500 Mobile wins in efficiency and form factor flexibility. At 140 W with no external power connectors, it can operate in portable devices where a 335 W triple-slot card with two 8-pin connectors physically cannot fit. Its tensor cores provide dedicated hardware for AI and machine learning inference workloads, a feature the RX 6950 XT lacks entirely. The RTX A4500 Mobile also has a higher percentile ranking in the database at 93 versus 88, indicating that its recorded performance places it higher relative to the full GPU landscape, even though its absolute scores in shared tests are lower.

For gaming and high-FPS rendering, the RX 6950 XT’s higher clocks, larger TMU count, and greater ROP count point to an advantage in rasterization-heavy tasks. The AMD card’s 739.2 GTexel/s texture rate and 295.7 GPixel/s pixel rate are more than double the NVIDIA part’s figures. For professional mobile workstations where power draw is constrained and space is limited, the RTX A4500 Mobile is the only viable option of the two, given its portable device dependent design and lack of external power requirements.

The release timing is close, with the RTX A4500 Mobile launching on 2022-03-21 and the RX 6950 XT on 2022-05-09. Both are end-of-life products. The RX 6950 XT’s launch MSRP was 1,099 USD. The RTX A4500 Mobile has no recorded launch MSRP, as mobile GPU pricing is typically set by system integrators rather than as a standalone card.