AMD Radeon 8065S vs NVIDIA RTX A400 Comparison

Head-to-Head Benchmarks

The recorded data for the AMD Radeon 8065S is limited. It carries an average benchmark score of 0, and the database holds no individual test results for it. The NVIDIA RTX A400, by contrast, has a full suite of measured scores. Its average benchmark score is 6078. This places the RTX A400 at the 35th percentile among all GPUs in the database.

The RTX A400's strongest recorded result is in Geekbench OpenCL, where it scores 22844. Its Geekbench Vulkan result is close behind at 22237. In Passmark's legacy DirectX 9 test, the A400 scores 87. The DirectX 10 and DirectX 11 results are 32 and 37 respectively, while DirectX 12 drops to 27. The Passmark G3D score is 5983, and the GPU compute score is 2557. The 2D graphics score is 899.

Because the Radeon 8065S has no benchmark entries, there are no head-to-head test scores to compare directly. The database lists zero wins for each side. The Radeon 8065S does hold a 50th percentile position among all GPUs, which is higher than the RTX A400's 35th percentile. That percentile gap suggests the Radeon 8065S is expected to outperform the A400 in general, but the absence of measured scores means this cannot be confirmed with actual test data.

The RTX A400's nearest rivals in the database provide context for its standing. It sits effectively level with the NVIDIA GeForce MX230, which averages 6077, a delta of 0%. The NVIDIA Quadro P2000 averages 6049, which is 0.5% behind the A400. The Intel Iris Pro Graphics 6200 averages 6117, putting it 0.6% ahead. The AMD Radeon 760M averages 6019, which is 1% behind. These are tight margins, indicating the A400 performs in a narrow band around these comparable products.

The Radeon 8065S's theoretical specifications, however, point to a much higher ceiling. Its FP32 compute is listed at 15.36 TFLOPS, compared to the RTX A400's 2.706 TFLOPS. Its pixel rate is 192.0 GPixel/s versus 28.19 GPixel/s, and its texture rate is 480.0 GTexel/s versus 42.29 GTexel/s. These are large gaps on paper. The Radeon 8065S also has 2560 shading units, 160 texture mapping units, and 64 ROPs, while the RTX A400 has 768 shading units, 24 TMUs, and 16 ROPs. The A400's 6 RT cores and 24 tensor cores are its dedicated acceleration blocks, while the Radeon 8065S lists 40 RT cores and no tensor core count.

The Verdict

The data presents an unusual comparison. The RTX A400 is a measured, active product with a full set of benchmark results and a clear position among its peers. The Radeon 8065S is also marked as Active, but it has no recorded benchmarks and no average score. Its 50th percentile placement is the only quantitative signal of its standing.

From the recorded data, the RTX A400 is the only one of the two with proven performance. It is competitive with the MX230 and Quadro P2000, sitting within 1% of all four nearest rivals. Its 4 GB GDDR6 memory with a 64-bit bus and 96.00 GB/s bandwidth is modest, but it is a real, dedicated memory subsystem. The Radeon 8065S uses system shared memory, making its bandwidth system dependent and its effective performance tied to the host platform.

For a buyer choosing strictly from the data, the RTX A400 is the safer pick because it has verified scores. The Radeon 8065S's theoretical specifications are dramatically higher, and its 4 nm process node and newer RDNA 3.5 architecture suggest it should be far faster. But with zero measured results, that remains an inference from specifications, not a confirmed outcome. The RTX A400's 35th percentile and 6078 average score are facts. The Radeon 8065S's 50th percentile is the only comparable fact, and it is not backed by any test.

Architecture Differences

The two GPUs come from different design philosophies. The AMD Radeon 8065S uses the Gorgon Halo chip built on RDNA 3.5 architecture. It is manufactured by TSMC on a 4 nm process. The NVIDIA RTX A400 uses the GA107 chip on Ampere architecture, manufactured by Samsung on an 8 nm process. That is a two-generation process gap in AMD's favor, which typically allows higher transistor density and better power efficiency.

The Radeon 8065S has a die size of 308 mm², while the RTX A400 is 200 mm². The A400's transistor count is listed at 8,700 million, with a density of 43.5M per mm². The Radeon 8065S's transistor count is unknown. The Radeon 8065S is part of the Navi Mobile (RX 8000M) generation and is classified as an integrated graphics product with an IGP slot width. The RTX A400 is a discrete, single-slot workstation card from the Workstation Ampere (Ax000) generation.

The Radeon 8065S uses a PCIe 5.0 x16 bus interface, while the RTX A400 uses PCIe 4.0 x8. The Radeon 8065S has no power connectors and a 55 W TDP, using system shared memory. The RTX A400 also has no power connectors, with a 50 W TDP, and uses 4 GB of dedicated GDDR6 memory on a 64-bit bus. The A400's memory clock is 1500 MHz with 12 Gbps effective speed. The Radeon 8065S's memory clock is listed as system shared, with bandwidth dependent on the system.

Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RTX A400's display outputs are four mini-DisplayPort 1.4a connectors, while the Radeon 8065S's outputs are portable device dependent. The A400's physical dimensions are 163 mm in length and 69 mm in height. The Radeon 8065S has no listed dimensions.

The A400 has 24 tensor cores and 6 RT cores, which are Ampere's dedicated AI and ray tracing blocks. The Radeon 8065S lists 40 RT cores but no tensor core count, and its FP16 performance is 15.36 TFLOPS at a 1:1 ratio with FP32, matching its FP32 figure. The A400's FP16 is also 1:1 with FP32 at 2.706 TFLOPS.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA RTX A400 has an average benchmark score of 6078. The AMD Radeon 8065S has an average benchmark score of 0, with no individual benchmark entries recorded.

Q: How does the RTX A400 compare to its nearest rivals?

A: The RTX A400 is effectively tied with the NVIDIA GeForce MX230, which scores 6077 with a 0% delta. It is 0.5% ahead of the NVIDIA Quadro P2000 (6049), 0.6% behind the Intel Iris Pro Graphics 6200 (6117), and 1% ahead of the AMD Radeon 760M (6019).

Q: What are the memory configurations of each GPU?

A: The RTX A400 has 4 GB of GDDR6 memory on a 64-bit bus with 96.00 GB/s bandwidth. The Radeon 8065S uses system shared memory, with bus width and bandwidth listed as system dependent.

Q: Which GPU has the higher FP32 compute performance?

A: The Radeon 8065S lists 15.36 TFLOPS of FP32 performance. The RTX A400 lists 2.706 TFLOPS. The Radeon 8065S's figure is significantly higher on paper.

Q: What process nodes do the two GPUs use?

A: The Radeon 8065S is built on a 4 nm process by TSMC. The RTX A400 is built on an 8 nm process by Samsung.

Q: What are the TDP ratings?

A: The Radeon 8065S has a TDP of 55 W. The RTX A400 has a TDP of 50 W.

Where Each One Wins

The RTX A400 wins in verified, measured performance. It has a complete set of benchmark scores across OpenCL, Vulkan, and multiple DirectX versions, plus Passmark G2D, G3D, and compute tests. Its average score of 6078 places it at the 35th percentile, and it holds its own against four close rivals within a 1.6% spread. For any workload that relies on confirmed results, the A400 is the only option with data behind it.

The RTX A400 also wins on dedicated memory. Its 4 GB GDDR6 pool with 96.00 GB/s bandwidth is fixed and independent of the host system. The Radeon 8065S's memory performance is system dependent, meaning its bandwidth could vary widely depending on the platform's memory configuration. In workstation tasks where consistent memory behavior matters, the A400 has the advantage.

The Radeon 8065S wins on raw specification counts. Its 2560 shading units, 160 TMUs, and 64 ROPs dwarf the A400's 768 shading units, 24 TMUs, and 16 ROPs. Its FP32 throughput of 15.36 TFLOPS is more than five times the A400's 2.706 TFLOPS. Its pixel rate of 192.0 GPixel/s and texture rate of 480.0 GTexel/s are similarly far ahead. The Radeon 8065S also has 40 RT cores to the A400's 6, and it uses a wider PCIe 5.0 x16 interface versus the A400's PCIe 4.0 x8.

The Radeon 8065S wins on process technology and generation. Its 4 nm TSMC node is smaller than the A400's 8 nm Samsung node. It belongs to the newer RDNA 3.5 architecture and Navi Mobile (RX 8000M) generation, while the A400 is based on Ampere. Its 55 W TDP is only 5 W higher than the A400's 50 W, despite the large gap in theoretical compute, which indicates a much better performance-per-watt profile on paper.

The RTX A400 wins on physical presence and connectivity. It is a single-slot card with four mini-DisplayPort 1.4a outputs and a 163 mm length, making it a drop-in discrete solution for workstation systems. The Radeon 8065S is an IGP with no dedicated display outputs, relying on the portable device for connectivity.

Specification Differences

The two GPUs differ in nearly every major specification category. The Radeon 8065S uses the Gorgon Halo chip on RDNA 3.5, built by TSMC at 4 nm. The RTX A400 uses the GA107 chip on Ampere, built by Samsung at 8 nm. The Radeon 8065S has a 308 mm² die; the RTX A400 has a 200 mm² die with 8,700 million transistors and a density of 43.5M per mm².

Clock speeds differ substantially. The Radeon 8065S has a base clock of 1295 MHz and a boost clock of 3000 MHz. The RTX A400 has a base clock of 1417 MHz and a boost clock of 1762 MHz. The A400's memory clock is 1500 MHz with 12 Gbps effective speed, while the Radeon 8065S's memory clock is system shared.

Compute resources are heavily skewed toward the Radeon 8065S. It has 2560 shading units, 160 TMUs, 64 ROPs, and 40 RT cores. The RTX A400 has 768 shading units, 24 TMUs, 16 ROPs, 6 RT cores, and 24 tensor cores. The Radeon 8065S has no tensor core count listed.

Performance rates follow the same pattern. The Radeon 8065S delivers 192.0 GPixel/s pixel rate, 480.0 GTexel/s texture rate, and 15.36 TFLOPS FP32 and FP16. The RTX A400 delivers 28.19 GPixel/s, 42.29 GTexel/s, and 2.706 TFLOPS FP32 and FP16.

Memory and power also differ. The Radeon 8065S uses system shared memory with system dependent bandwidth. The RTX A400 has 4 GB GDDR6 on a 64-bit bus with 96.00 GB/s bandwidth. The Radeon 8065S has a 55 W TDP and is an IGP. The RTX A400 has a 50 W TDP, is a single-slot card, and has a suggested PSU of 250 W.

Interfaces and outputs are distinct. The Radeon 8065S uses PCIe 5.0 x16 and has portable device dependent display outputs. The RTX A400 uses PCIe 4.0 x8 and has four mini-DisplayPort 1.4a outputs. Physical dimensions are listed only for the A400: 163 mm in length and 69 mm in height. The Radeon 8065S has no dimensions recorded.