AMD Radeon 8065S vs NVIDIA GeForce RTX 4090 Max-Q Comparison

The AMD Radeon 8065S and the NVIDIA GeForce RTX 4090 Max-Q occupy different positions in the mobile GPU landscape, despite sharing the same integrated form factor. The database records no direct head-to-head benchmark results between these two parts, so the analysis must rely entirely on their recorded architectural and specification data. The Radeon 8065S uses a 4 nm process and the RDNA 3.5 architecture, while the RTX 4090 Max-Q uses a 5 nm process and the Ada Lovelace architecture. Neither part has any recorded benchmark scores, and both sit at the 50th percentile against all GPUs in the database, with an average benchmark score of zero for each. The absence of measured performance data means the comparison hinges on specifications, power targets, and architectural characteristics.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries for the AMD Radeon 8065S versus the NVIDIA GeForce RTX 4090 Max-Q. The winsA and winsB fields are both zero, confirming that no recorded test places one part ahead of the other in any specific workload. This does not mean the parts are equivalent; it means the database lacks direct measurement data. The two GPUs cannot be ranked by score because neither has an average benchmark score above zero. The percentile fields for both are identical at 50, which further indicates that the database treats them as having no measured standing relative to other GPUs.

Without direct scores, the comparison must turn to the raw throughput figures recorded in the specifications. The NVIDIA part shows a much higher FP32 performance at 28.31 TFLOPS, while the AMD part shows 15.36 TFLOPS. That puts the RTX 4090 Max-Q at roughly 84% higher FP32 throughput than the Radeon 8065S. The texture rate follows a similar pattern: the NVIDIA GPU records 442.3 GTexel/s versus 480.0 GTexel/s for the AMD GPU. The AMD part is actually ahead here by about 8.5%. The pixel rate tells a different story: the Radeon 8065S records 192.0 GPixel/s, while the RTX 4090 Max-Q records 163.0 GPixel/s. The AMD part leads pixel throughput by roughly 17.8%. These are the largest recorded gaps between the two, and they point in opposite directions.

The shading unit count and texture mapping unit count heavily favor NVIDIA. The RTX 4090 Max-Q has 9728 shading units versus 2560 for the Radeon 8065S, a difference of 7168 units. The TMU count is 304 versus 160, and the ROP count is 112 versus 64. The NVIDIA part also has 76 ray tracing cores and 304 tensor cores, while the AMD part has 40 ray tracing cores and no recorded tensor cores. The higher FP32 figure on the NVIDIA side aligns with the larger shader array, but the AMD part still manages a higher texture rate and pixel rate, which suggests the Radeon 8065S relies on higher clock speeds to compensate. The AMD boost clock is 3000 MHz, more than double the NVIDIA boost clock of 1455 MHz. The base clocks also differ: 1295 MHz for AMD versus 930 MHz for NVIDIA.

Where Each One Wins

The recorded data suggests the AMD Radeon 8065S wins in situations that depend on pixel fill and texture fill. Its pixel rate of 192.0 GPixel/s exceeds the 163.0 GPixel/s of the RTX 4090 Max-Q, so workloads that stress raster output stages, such as high-resolution framebuffer operations or certain compositing tasks, would see a measured advantage for the AMD part. Its texture rate of 480.0 GTexel/s also beats the 442.3 GTexel/s of the NVIDIA part, which indicates an edge in texture-heavy scenes that are not limited by shader throughput. The AMD part also has a much higher boost clock at 3000 MHz versus 1455 MHz, which helps explain how a smaller shader array can keep pace in these specific fill-rate metrics.

The NVIDIA GeForce RTX 4090 Max-Q wins in raw compute throughput. Its FP32 mark of 28.31 TFLOPS is almost double the 15.36 TFLOPS of the Radeon 8065S. This gives it a clear lead in general-purpose compute and shader-heavy rendering. The RTX 4090 Max-Q also has 9728 shading units, which is 7168 more than the AMD part, so any workload that scales with shader count will favor NVIDIA. The tensor core count of 304 gives NVIDIA a dedicated path for AI and machine learning tasks, while the AMD part has no recorded tensor cores. The RT core count of 76 versus 40 also favors NVIDIA for ray-traced workloads, assuming ray tracing performance scales with RT core count, which the data does not directly confirm but strongly suggests.

Memory bandwidth is another area where the NVIDIA part wins decisively. The RTX 4090 Max-Q has 16 GB of GDDR6 memory on a 256 bit bus, with 576.0 GB/s of bandwidth. The Radeon 8065S uses system shared memory, with bandwidth listed as system dependent. The database records the AMD memory size, type, and bus width all as system shared, which means the Radeon 8065S has no dedicated VRAM and its memory performance depends entirely on the host system. For workloads that require high bandwidth, the dedicated 576.0 GB/s of the NVIDIA part is a substantial advantage. The AMD part cannot match that without a system memory configuration that provides comparable bandwidth, and that configuration is not specified in the database.

Architecture Differences

The two GPUs come from different manufacturers and different architectural generations. The AMD Radeon 8065S uses the RDNA 3.5 architecture on a chip called Gorgon Halo, fabricated on a 4 nm process at TSMC. The NVIDIA GeForce RTX 4090 Max-Q uses the Ada Lovelace architecture on the AD103 chip, fabricated on a 5 nm process, also at TSMC. The process node difference is small: 4 nm versus 5 nm. The die size differs as well: the AMD chip measures 308 mm², while the NVIDIA chip measures 379 mm². The transistor count for the NVIDIA chip is recorded as 45,900 million, with a density of 121.1 million transistors per mm². The AMD transistor count is unknown, so no density figure exists for that chip.

The clock behavior separates the two designs. The AMD part has a base clock of 1295 MHz and a boost clock of 3000 MHz. The NVIDIA part has a base clock of 930 MHz and a boost clock of 1455 MHz. The AMD boost clock is more than double the NVIDIA boost clock, which is a striking difference given that both are integrated GPUs with no external power connectors. The power targets also differ: the Radeon 8065S has a TDP of 55 W, while the RTX 4090 Max-Q has a TDP of 80 W. The NVIDIA part draws more power, which aligns with its larger chip and higher transistor count, but the AMD part achieves its high clock speeds within a lower power envelope.

The memory architecture is fundamentally different. The Radeon 8065S uses system shared memory, with no dedicated VRAM, no memory bus width of its own, and bandwidth that the database lists as system dependent. The RTX 4090 Max-Q has 16 GB of GDDR6 memory on a 256 bit bus, with 576.0 GB/s of bandwidth. This is a major architectural split: one part relies on the host system for all memory access, while the other has its own high-speed memory pool. The memory clock for the NVIDIA part is recorded as 2250 MHz with 18 Gbps effective, while the AMD memory clock is listed as system shared.

The compute resources differ sharply. The Radeon 8065S has 2560 shading units, 160 TMUs, 64 ROPs, and 40 RT cores. The RTX 4090 Max-Q has 9728 shading units, 304 TMUs, 112 ROPs, 76 RT cores, and 304 tensor cores. The AMD part has no recorded tensor cores, while NVIDIA has a substantial tensor core array. Both parts support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Both use the IGP slot width and have no power connectors. The bus interface differs: the AMD part uses PCIe 5.0 x16, while the NVIDIA part uses PCIe 4.0 x16. The AMD part is newer, with a release date recorded in late 2025, while the NVIDIA part released in early 2023. The AMD predecessor is listed as Polaris Mobile, while the NVIDIA predecessor is GeForce 30 Mobile, and the NVIDIA successor is GeForce 50 Mobile.

The Verdict

The data indicates that the NVIDIA GeForce RTX 4090 Max-Q is the stronger part for compute-intensive and memory-heavy workloads. Its FP32 throughput of 28.31 TFLOPS is roughly 84% higher than the 15.36 TFLOPS of the Radeon 8065S. Its dedicated 16 GB GDDR6 memory with 576.0 GB/s of bandwidth removes any dependence on system memory configuration, which is a clear advantage over the system shared memory of the AMD part. The 304 tensor cores give NVIDIA a dedicated path for AI workloads that the AMD part cannot match, since the Radeon 8065S records no tensor cores. For ray tracing, the 76 RT cores versus 40 RT cores also favor NVIDIA, though the database does not record actual ray tracing benchmark results.

The AMD Radeon 8065S has its own strengths. Its pixel rate of 192.0 GPixel/s is 17.8% higher than the 163.0 GPixel/s of the NVIDIA part. Its texture rate of 480.0 GTexel/s is 8.5% higher than the 442.3 GTexel/s of the NVIDIA part. These fill-rate wins come from a much higher boost clock of 3000 MHz versus 1455 MHz, achieved within a lower 55 W TDP versus 80 W for NVIDIA. For workloads that are limited by pixel or texture fill rather than shader compute, the Radeon 8065S shows a measurable advantage in the recorded specifications.

The choice between the two depends on the workload. The RTX 4090 Max-Q suits tasks that demand high shader throughput, large dedicated memory bandwidth, tensor core acceleration, and ray tracing. The Radeon 8065S suits tasks that demand high fill rates and lower power consumption, and it does not require dedicated VRAM because it uses system memory. The database shows no direct benchmark results, so these conclusions come from the recorded specifications alone. The 50th percentile standing for both parts, with zero average benchmark scores, means neither has a measured performance ranking in the database.

FAQ

Q: Which GPU has higher FP32 performance?

A: The NVIDIA GeForce RTX 4090 Max-Q records 28.31 TFLOPS, which is higher than the 15.36 TFLOPS of the AMD Radeon 8065S.

Q: Does the AMD Radeon 8065S have dedicated VRAM?

A: No. The Radeon 8065S uses system shared memory for size, type, and bus width, with bandwidth listed as system dependent.

Q: How much memory does the RTX 4090 Max-Q have?

A: The RTX 4090 Max-Q has 16 GB of GDDR6 memory on a 256 bit bus, with 576.0 GB/s of bandwidth.

Q: Which GPU has a higher boost clock?

A: The AMD Radeon 8065S has a boost clock of 3000 MHz, while the NVIDIA GeForce RTX 4090 Max-Q has a boost clock of 1455 MHz.

Q: What are the power targets for each GPU?

A: The AMD Radeon 8065S has a TDP of 55 W, and the NVIDIA GeForce RTX 4090 Max-Q has a TDP of 80 W.

Q: Does the AMD Radeon 8065S have tensor cores?

A: The database records no tensor cores for the AMD Radeon 8065S, while the RTX 4090 Max-Q has 304 tensor cores.

Specification Differences

The two GPUs differ in nearly every recorded specification field. The AMD Radeon 8065S uses the Gorgon Halo chip with RDNA 3.5 architecture on a 4 nm TSMC process, with a die size of 308 mm² and unknown transistor count. The NVIDIA GeForce RTX 4090 Max-Q uses the AD103 chip with Ada Lovelace architecture on a 5 nm TSMC process, with a die size of 379 mm² and 45,900 million transistors at a density of 121.1M per mm². The AMD base clock is 1295 MHz and boost is 3000 MHz, while the NVIDIA base clock is 930 MHz and boost is 1455 MHz. The AMD memory is system shared, while the NVIDIA memory is 16 GB GDDR6 on a 256 bit bus with 576.0 GB/s bandwidth and a memory clock of 2250 MHz, 18 Gbps effective.

The shading units are 2560 for AMD versus 9728 for NVIDIA. TMUs are 160 versus 304. ROPs are 64 versus 112. RT cores are 40 versus 76. Tensor cores are none for AMD versus 304 for NVIDIA. The pixel rate is 192.0 GPixel/s for AMD versus 163.0 GPixel/s for NVIDIA. The texture rate is 480.0 GTexel/s for AMD versus 442.3 GTexel/s for NVIDIA. FP32 is 15.36 TFLOPS for AMD versus 28.31 TFLOPS for NVIDIA. FP16 is 15.36 TFLOPS (1:1) for AMD versus 28.31 TFLOPS (1:1) for NVIDIA. TDP is 55 W for AMD versus 80 W for NVIDIA. The bus interface is PCIe 5.0 x16 for AMD versus PCIe 4.0 x16 for NVIDIA. The release dates are late 2025 for AMD and early 2023 for NVIDIA. The predecessor is Polaris Mobile for AMD and GeForce 30 Mobile for NVIDIA, with GeForce 50 Mobile as the NVIDIA successor. The AMD series is null, while the NVIDIA series is GeForce 40-series. Both share the IGP slot width, no power connectors, portable device dependent display outputs, DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Neither has a recorded launch MSRP.