AMD Radeon RX 7800M vs Intel Arc Pro B65 Comparison

FAQ

Q: How does the AMD Radeon RX 7800M compare to the Intel Arc Pro B65 in raw compute performance?

A: The AMD Radeon RX 7800M delivers 35.87 TFLOPS of FP32 compute, while the Intel Arc Pro B65 delivers 12.29 TFLOPS FP32. The AMD part is nearly three times higher in this metric, and its FP16 performance is also 35.87 TFLOPS (1:1 ratio), whereas the Intel part reaches 24.58 TFLOPS FP16 (2:1 ratio).

Q: What are the memory specifications for each GPU?

A: The AMD Radeon RX 7800M has 12 GB of GDDR6 memory on a 192-bit bus with 432.0 GB/s bandwidth. The Intel Arc Pro B65 has 32 GB of GDDR6 memory on a 256-bit bus with 608.0 GB/s bandwidth. The Intel card offers more capacity and higher bandwidth.

Q: Which GPU has a higher boost clock?

A: The Intel Arc Pro B65 has a base and boost clock of 2400 MHz, while the AMD Radeon RX 7800M has a base clock of 1295 MHz and a boost clock of 2335 MHz. The Intel card's boost clock is 65 MHz higher.

Q: What is the process node and die size for each chip?

A: Both GPUs are built on a 5 nm process at TSMC. The AMD Navi 32 chip has 28,100 million transistors on a 346 mm² die, while the Intel BMG-G21 chip has 19,600 million transistors on a 272 mm² die.

Q: Which GPU has more shading units and ray tracing cores?

A: The AMD Radeon RX 7800M has 3840 shading units and 60 ray tracing cores. The Intel Arc Pro B65 has 2560 shading units and 20 ray tracing cores. AMD leads in both counts.

Q: What is the average benchmark score for each GPU?

A: The AMD Radeon RX 7800M has an average benchmark score of 27883, placing it in the 73rd percentile of all GPUs. The Intel Arc Pro B65 has no recorded benchmark scores in the database, resulting in an average score of 0 and a 50th percentile ranking.

The Verdict

The data indicates a clear performance hierarchy between these two GPUs, though they serve different primary purposes. The AMD Radeon RX 7800M is a mobile-focused discrete GPU with substantial compute capabilities, while the Intel Arc Pro B65 is a professional workstation card with a focus on memory capacity and display output.

For users prioritizing raw graphics performance and gaming-oriented workloads, the AMD Radeon RX 7800M is the superior choice. Its FP32 compute of 35.87 TFLOPS versus 12.29 TFLOPS, combined with 3840 shading units and 60 ray tracing cores, provides a decisive advantage in rendering tasks. The AMD card's benchmark results confirm this: its average score of 27883 places it at the 73rd percentile, and its nearest rivals include the AMD Radeon Pro Vega 20 (within 0.2%), the AMD Radeon Pro W5500X (0.3% behind), and the NVIDIA GeForce GTX 980 Ti (0.5% behind). The Intel Arc Pro B65 has no recorded benchmarks, so its real-world performance cannot be validated against the database.

For workloads requiring large memory pools, the Intel Arc Pro B65 is the better fit. Its 32 GB of GDDR6 memory with 608.0 GB/s bandwidth is a significant advantage over the AMD card's 12 GB and 432.0 GB/s. The Intel card also offers a wider 256-bit memory bus and higher memory clock (2375 MHz versus 2250 MHz). These specifications suit professional applications such as large dataset processing, high-resolution texture work, or multi-display setups, where memory capacity and bandwidth matter more than raw shader throughput.

The Intel Arc Pro B65 is also the only card with a defined form factor: it is a dual-slot design with a 1x 8-pin power connector and a suggested PSU of 550 W. The AMD Radeon RX 7800M is an integrated graphics package (IGP) with no power connectors, making it suitable for laptops or compact systems. The Intel card provides 4x DisplayPort 2.1 outputs, while the AMD card's display outputs are dependent on the portable device.

In short, the AMD Radeon RX 7800M wins on compute and benchmark-verified performance, while the Intel Arc Pro B65 wins on memory capacity, bandwidth, and professional connectivity. Neither card has a launch MSRP listed in the database, so no pricing analysis is possible.

Head-to-Head Benchmarks

The head-to-head benchmark dataset for these two GPUs is empty, meaning no direct comparative tests were recorded. However, the AMD Radeon RX 7800M has a full suite of individual benchmark scores that can be interpreted against its competitors.

The AMD card's strongest result is in Geekbench Vulkan, where it scores 126668. In Geekbench OpenCL, it scores 120778. These are substantial numbers that indicate strong compute performance in API-agnostic workloads. The Passmark G3D score of 17613 and Passmark GPU Compute score of 9342 further reinforce the AMD card's capability.

The 3DMark Steel Nomad DX12 score of 2994 is the only dedicated gaming-oriented benchmark recorded for the AMD card. This score, combined with the card's 73rd percentile ranking, suggests it sits comfortably in the upper mid-range of all GPUs. The nearest rival, the AMD Radeon Pro Vega 20, has an average score of 27839, which is only 0.2% lower. The AMD Radeon Pro W5500X scores 27973 (0.3% higher), and the NVIDIA GeForce GTX 980 Ti scores 28020 (0.5% higher). These margins are narrow, indicating that the RX 7800M is competitive with older professional and high-end consumer cards.

The Intel Arc Pro B65 has no benchmark scores in the database. Consequently, no direct head-to-head comparison can be made. The only comparative data available are the specification differences, which show AMD leading in shading units, texture mapping units, render output units, ray tracing cores, and FP32 compute. Intel leads in memory size, bus width, bandwidth, boost clock, and TDP.

Specification Differences

The two GPUs differ across nearly every major specification category. The AMD Radeon RX 7800M uses the Navi 32 chip with RDNA 3.0 architecture, while the Intel Arc Pro B65 uses the BMG-G21 chip with Xe2-HPG architecture. Both are manufactured on a 5 nm process at TSMC.

The AMD card has 3840 shading units, 240 TMUs, and 96 ROPs, compared to the Intel card's 2560 shading units, 160 TMUs, and 80 ROPs. AMD also has 60 ray tracing cores versus Intel's 20. The AMD card's FP32 throughput is 35.87 TFLOPS, while the Intel card achieves 12.29 TFLOPS. The AMD card's pixel rate is 224.2 GPixel/s and texture rate is 560.4 GTexel/s, versus Intel's 192.0 GPixel/s and 384.0 GTexel/s.

The Intel Arc Pro B65 has a higher boost clock (2400 MHz versus 2335 MHz) and a higher base clock (2400 MHz versus 1295 MHz). The Intel card also has a higher memory clock (2375 MHz versus 2250 MHz) and a wider memory bus (256-bit versus 192-bit), resulting in 608.0 GB/s bandwidth versus 432.0 GB/s. Memory capacity is 32 GB versus 12 GB.

The power and form factor specifications differ significantly. The AMD card has a TDP of 180 W and is classified as IGP with no power connectors. The Intel card has a TDP of 200 W, is dual-slot, requires a 1x 8-pin power connector, and has a suggested PSU of 550 W. The AMD card uses PCIe 4.0 x16, while the Intel card uses PCIe 5.0 x16. Display outputs are portable-device dependent for AMD, while Intel provides 4x DisplayPort 2.1.

The AMD card has a release date of 2024-09-10, while the Intel card has a release date of 2026-03-31. Both are listed as Active in production status.

Architecture Differences

The architectural split between these two GPUs is fundamental. The AMD Radeon RX 7800M is built on RDNA 3.0, AMD's third-generation gaming architecture, and belongs to the Navi Mobile (RX 7000M) generation with the Wheat Nas codename. The chip is Navi 32, containing 28,100 million transistors on a 346 mm² die, yielding a transistor density of 81.2M per mm².

The Intel Arc Pro B65 uses Xe2-HPG architecture, which is Intel's second-generation high-performance gaming architecture, under the Battlemage (Pro Series) generation. The chip is BMG-G21, with 19,600 million transistors on a 272 mm² die, resulting in a transistor density of 72.1M per mm².

The AMD architecture is optimized for high shader throughput with a 1:1 FP16 to FP32 ratio. The Intel architecture uses a 2:1 FP16 to FP32 ratio, indicating a different approach to compute resource allocation. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API compatibility is identical.

The cache hierarchies and internal memory structures are not specified in the database, but the differences in shading units, ray tracing cores, and transistor counts indicate that AMD's design prioritizes raw parallel compute while Intel's design emphasizes memory capacity and bandwidth. The AMD card has a higher transistor density despite a larger die, suggesting a more densely packed compute layout. The Intel card, with fewer transistors on a smaller die, appears to allocate more space to memory controllers and display logic, consistent with its 32 GB memory configuration and 4x DisplayPort 2.1 outputs.

Where Each One Wins

The AMD Radeon RX 7800M wins decisively in compute-heavy workloads. Its FP32 performance of 35.87 TFLOPS is 2.9 times higher than the Intel card's 12.29 TFLOPS. The AMD card also has 50% more shading units (3840 versus 2560), 50% more TMUs (240 versus 160), and 20% more ROPs (96 versus 80). Ray tracing performance should favor AMD as well, given its 60 ray tracing cores versus Intel's 20.

The AMD card's benchmark scores support this conclusion. Its Geekbench Vulkan score of 126668 and OpenCL score of 120778 indicate strong compute capability. The Passmark G3D score of 17613 and Passmark GPU Compute score of 9342 further demonstrate that the AMD card is a capable performer in general graphics and compute tasks. Its 73rd percentile ranking places it above half of all GPUs in the database.

The Intel Arc Pro B65 wins in memory-intensive scenarios. Its 32 GB of GDDR6 memory is 2.7 times larger than the AMD card's 12 GB. The 608.0 GB/s bandwidth is 41% higher than the AMD card's 432.0 GB/s. The 256-bit memory bus provides more parallel access paths than the AMD card's 192-bit bus. These specifications make the Intel card better suited for workloads that require large working sets, such as machine learning inference with large models, high-resolution video editing, or scientific visualization with massive datasets.

The Intel card also wins on connectivity and power delivery. It provides 4x DisplayPort 2.1 outputs, which is a fixed and documented configuration, while the AMD card's display outputs are dependent on the portable device. The Intel card's dual-slot design with a 1x 8-pin power connector and 550 W suggested PSU allows for predictable integration into desktop workstations. The AMD card's IGP form factor with no power connectors is limited to mobile platforms.

The AMD card wins on efficiency per watt in compute terms. Its 180 W TDP delivers 35.87 TFLOPS, which is 0.199 TFLOPS per watt. The Intel card's 200 W TDP delivers 12.29 TFLOPS, which is 0.061 TFLOPS per watt. However, the Intel card's higher memory bandwidth per watt (3.04 GB/s per watt versus 2.40 GB/s per watt for AMD) suggests it is more efficient for memory-bound tasks.

In summary, the AMD Radeon RX 7800M is the choice for compute and gaming performance, while the Intel Arc Pro B65 is the choice for memory capacity, bandwidth, and professional display connectivity.