AMD Radeon 8065S vs NVIDIA GeForce RTX 4090 Mobile Comparison

AMD Radeon 8065S and NVIDIA GeForce RTX 4090 Mobile represent two distinct approaches to high-performance mobile graphics. The Radeon 8065S is an integrated graphics processor built on the Gorgon Halo chip, while the RTX 4090 Mobile is a discrete-class solution based on the AD103 die. The database records no head-to-head benchmark entries between these two parts, so the comparison relies on their individual recorded scores, architectural specifications, and relative standing among all GPUs.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results for the AMD Radeon 8065S versus the NVIDIA GeForce RTX 4090 Mobile. The Radeon 8065S has an empty benchmark list, an average benchmark score of zero, and a percentile rank of 50 among all GPUs. The RTX 4090 Mobile, on the other hand, has a full suite of recorded tests. Its average benchmark score is 43,667, and it sits at the 84th percentile of all GPUs. This percentile gap, from 50 to 84, indicates that the NVIDIA part occupies a substantially higher position in the overall performance distribution.

The GeForce RTX 4090 Mobile delivers its strongest recorded result in Geekbench OpenCL with a score of 180,831. Its Geekbench Vulkan result follows at 170,774. In Passmark tests, the GPU scores 27,212 in G3D, 12,347 in GPU compute, 984 in G2D, 310 in DirectX 9, 262 in DirectX 11, 173 in DirectX 10, and 107 in DirectX 12. These numbers establish a consistent performance profile across both compute-oriented and graphics-oriented workloads.

Without any recorded benchmarks for the Radeon 8065S, the data cannot demonstrate where one part beats the other in specific tests. The absence of head-to-head entries means no direct score comparison is possible. The only quantitative comparison available is through the nearest rivals of the RTX 4090 Mobile. The NVIDIA RTX A6000 scores 44,075, which is 0.9 percent higher than the 43,667 average of the RTX 4090 Mobile. The NVIDIA Quadro M6000 scores 43,301, putting it 0.8 percent lower. The GeForce RTX 5050 Mobile scores 43,268, also 0.9 percent lower. The Quadro M6000 24 GB scores 43,262, again 0.9 percent lower. These deltas show the RTX 4090 Mobile in a tight cluster with professional and newer mobile parts, with the largest recorded gap being only 0.9 percent in either direction.

The data implies that the RTX 4090 Mobile is a high-performing mobile GPU, but the Radeon 8065S cannot be placed on the same numeric scale because no measurements exist for it. The percentile fields offer the only indirect signal: the Radeon sits at the 50th percentile, while the RTX 4090 Mobile sits at the 84th. That difference suggests a wide performance gap, but the lack of direct test scores for the AMD part prevents a precise head-to-head statement.

FAQ

Q: Which GPU has a higher recorded average benchmark score?

A: The NVIDIA GeForce RTX 4090 Mobile has an average benchmark score of 43,667. The AMD Radeon 8065S has an average benchmark score of zero, with no recorded benchmark entries in the database.

Q: What is the percentile ranking of each GPU among all GPUs?

A: The RTX 4090 Mobile ranks at the 84th percentile among all GPUs. The Radeon 8065S ranks at the 50th percentile.

Q: How does the RTX 4090 Mobile compare to its nearest rivals?

A: The RTX 4090 Mobile is 0.9 percent lower than the NVIDIA RTX A6000, 0.8 percent higher than the NVIDIA Quadro M6000, and 0.9 percent higher than both the GeForce RTX 5050 Mobile and the Quadro M6000 24 GB.

Q: Does the Radeon 8065S have any recorded benchmark scores?

A: No. The database lists no benchmarks for the AMD Radeon 8065S, and its average benchmark score is recorded as zero.

Q: What is the boost clock of each GPU?

A: The Radeon 8065S has a boost clock of 3000 MHz. The RTX 4090 Mobile has a boost clock of 1695 MHz.

Q: How much memory bandwidth does each GPU have?

A: The RTX 4090 Mobile has 576.0 GB/s of memory bandwidth. The Radeon 8065S has memory bandwidth listed as system dependent, since it uses system-shared memory.

Architecture Differences

The AMD Radeon 8065S uses the Gorgon Halo chip built on the RDNA 3.5 architecture, manufactured on a 4 nm process at TSMC. Its die size is 308 mm². The transistor count is listed as unknown, and no transistor density is recorded. The NVIDIA GeForce RTX 4090 Mobile uses the AD103 chip built on the Ada Lovelace architecture, manufactured on a 5 nm process, also at TSMC. Its die size is 379 mm², and it contains 45,900 million transistors with a transistor density of 121.1 million per square millimeter. The AMD part has a smaller die but an unknown transistor count, so a direct density comparison is not possible from the recorded data.

The Radeon 8065S has 2,560 shading units, 160 texture mapping units, 64 raster output pipelines, and 40 ray tracing cores. It has no tensor core count listed. The RTX 4090 Mobile has 9,728 shading units, 304 texture mapping units, 112 raster output pipelines, 76 ray tracing cores, and 304 tensor cores. The NVIDIA part more than triples the shading units and nearly doubles the ray tracing core count. The presence of 304 tensor cores on the RTX 4090 Mobile is a structural difference, as the Radeon 8065S has no tensor core field recorded.

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The bus interfaces differ: the Radeon 8065S uses PCIe 5.0 x16, while the RTX 4090 Mobile uses PCIe 4.0 x16. Both are integrated into portable devices with no power connectors and slot width listed as IGP. The Radeon 8065S uses system-shared memory, while the RTX 4090 Mobile has dedicated 16 GB of GDDR6 memory on a 256-bit bus.

The memory architecture is a fundamental difference. The Radeon 8065S has no dedicated VRAM, relying on system-shared memory with bandwidth that depends on the host system. The RTX 4090 Mobile has fixed memory specifications: 16 GB, GDDR6, 256-bit bus width, and 576.0 GB/s bandwidth. The memory clock for the RTX 4090 Mobile is recorded as 2250 MHz with 18 Gbps effective speed. The Radeon 8065S lists its memory clock as system shared. This difference affects how each GPU behaves under memory-intensive workloads, although no benchmark data exists for the AMD part to quantify the impact.

Specification Differences

The two GPUs differ in nearly every core specification field. The Radeon 8065S has a base clock of 1295 MHz and a boost clock of 3000 MHz. The RTX 4090 Mobile has a base clock of 1335 MHz and a boost clock of 1695 MHz. The AMD part has a much higher boost clock, while the NVIDIA part has a slightly higher base clock.

Shader resources differ significantly. The Radeon 8065S has 2,560 shading units, 160 TMUs, and 64 ROPs. The RTX 4090 Mobile has 9,728 shading units, 304 TMUs, and 112 ROPs. The RTX 4090 Mobile also has 76 ray tracing cores and 304 tensor cores, while the Radeon 8065S lists 40 ray tracing cores and no tensor core count.

Pixel and texture rates follow the core counts. The Radeon 8065S records 192.0 GPixel/s pixel rate and 480.0 GTexel/s texture rate. The RTX 4090 Mobile records 189.8 GPixel/s pixel rate and 515.3 GTexel/s texture rate. The AMD part is slightly ahead in pixel rate, while the NVIDIA part is ahead in texture rate. Floating point performance shows a larger gap: the Radeon 8065S delivers 15.36 TFLOPS for FP32 and FP16 (1:1), while the RTX 4090 Mobile delivers 32.98 TFLOPS for both FP32 and FP16 (1:1).

Power draw differs substantially. The Radeon 8065S has a TDP of 55 W. The RTX 4090 Mobile has a TDP of 120 W. The AMD part consumes less than half the power of the NVIDIA part, which is relevant for system-level design choices in portable devices.

Process node and die details differ. The Radeon 8065S uses a 4 nm process with a 308 mm² die. The RTX 4090 Mobile uses a 5 nm process with a 379 mm² die and 45,900 million transistors. The release dates also differ: the Radeon 8065S is recorded as released on 2025-12-31, while the RTX 4090 Mobile is recorded as released on 2023-01-02. The Radeon 8065S lists its predecessor as Polaris Mobile, while the RTX 4090 Mobile lists its predecessor as GeForce 30 Mobile and its successor as GeForce 50 Mobile.

Where Each One Wins

The RTX 4090 Mobile wins in every category where recorded data exists. Its average benchmark score of 43,667 versus zero for the Radeon 8065S is the clearest recorded difference, though the zero reflects missing data rather than a measured performance level. The RTX 4090 Mobile also wins on raw compute resources: 9,728 shading units versus 2,560, 304 TMUs versus 160, 112 ROPs versus 64, and 76 ray tracing cores versus 40. Its FP32 throughput of 32.98 TFLOPS is more than double the 15.36 TFLOPS of the Radeon 8065S. The 304 tensor cores give the RTX 4090 Mobile a hardware capability that the Radeon 8065S does not list at all.

The Radeon 8065S wins in power efficiency based on the recorded TDP. It draws 55 W compared to 120 W for the RTX 4090 Mobile, meaning it requires less than half the power budget. The Radeon 8065S also has a higher boost clock at 3000 MHz versus 1695 MHz, and a slightly higher pixel rate at 192.0 GPixel/s versus 189.8 GPixel/s. Its PCIe 5.0 x16 interface is newer than the PCIe 4.0 x16 of the RTX 4090 Mobile. The Radeon 8065S also uses a smaller die at 308 mm² versus 379 mm², and a more advanced process node at 4 nm versus 5 nm.

The Radeon 8065S has no recorded benchmark scores, so any claim about its real-world performance must be treated as unverified by the database. What the data does show is a design philosophy difference: the AMD part emphasizes lower power, higher clocks, and a newer process node, while the NVIDIA part emphasizes raw throughput, dedicated memory, and a much larger shader and tensor core configuration.

The Verdict

The database clearly supports the RTX 4090 Mobile as the higher-performing GPU in every measured category. It ranks at the 84th percentile of all GPUs, has an average benchmark score of 43,667, and sits within 0.9 percent of professional-class parts like the RTX A6000 and Quadro M6000 series. Its 32.98 TFLOPS of FP32 performance, 16 GB of dedicated GDDR6 memory, and 576.0 GB/s of bandwidth make it the stronger choice for workloads that demand raw compute and memory throughput.

The Radeon 8065S presents a different profile. Its 55 W TDP, 3000 MHz boost clock, and 4 nm process node point toward a design optimized for power efficiency and integration into portable systems. Its pixel rate of 192.0 GPixel/s is marginally higher than the RTX 4090 Mobile, and its PCIe 5.0 interface is newer. But with no recorded benchmarks, the database cannot confirm how those specifications translate into actual performance.

For a user selecting between these two, the data points in one direction: the RTX 4090 Mobile is the only one of the two with verified benchmark results, and those results place it near the top of the GPU hierarchy. The Radeon 8065S remains an unmeasured quantity, with specifications that suggest it is built for a different class of device, one where power draw and integration matter more than peak throughput. The verdict from the recorded data is that the RTX 4090 Mobile is the superior performer, while the Radeon 8065S is the lower-power alternative whose actual capabilities are not yet documented in the database.