AMD Radeon 820M vs NVIDIA RTX 5000 Max-Q Ada Generation Comparison

FAQ

Q: What process nodes do the AMD Radeon 820M and NVIDIA RTX 5000 Max-Q Ada Generation use?

A: The AMD Radeon 820M is built on TSMC's 4 nm process, while the NVIDIA RTX 5000 Max-Q Ada Generation uses TSMC's 5 nm process.

Q: How much memory does each GPU have?

A: The AMD Radeon 820M uses System Shared memory, meaning its memory size, type, and bus width are all system dependent. The NVIDIA RTX 5000 Max-Q Ada Generation has 16 GB of GDDR6 memory on a 256 bit bus.

Q: What are the boost clock speeds for these two GPUs?

A: The AMD Radeon 820M boosts up to 2800 MHz, while the NVIDIA RTX 5000 Max-Q Ada Generation boosts to 1680 MHz.

Q: Which GPU has more shading units?

A: The NVIDIA RTX 5000 Max-Q Ada Generation has 9728 shading units, compared to 128 shading units on the AMD Radeon 820M.

Q: What is the TDP of each GPU?

A: The AMD Radeon 820M has a TDP of 15 W, while the NVIDIA RTX 5000 Max-Q Ada Generation has a TDP of 120 W.

Q: Do both GPUs support the same DirectX version?

A: Yes, both the AMD Radeon 820M and NVIDIA RTX 5000 Max-Q Ada Generation support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Architecture Differences

The AMD Radeon 820M is an integrated graphics processor based on the RDNA 3.5 architecture, manufactured on a 4 nm process at TSMC. It belongs to the Navi III IGP generation and uses the Krackan Point 2 chip. The GPU is designed as an IGP with no dedicated memory, relying entirely on System Shared memory. Its transistor count and die size are listed as unknown in the database, which reflects its nature as an integrated solution. The Radeon 820M has 128 shading units, 8 texture mapping units, 4 render output units, and 2 ray tracing cores. It does not list tensor cores. The base clock is 400 MHz with a boost clock of 2800 MHz. The GPU uses a PCIe 4.0 x8 bus interface and has a TDP of 15 W. It features 2 ray tracing cores, which is a relatively modest implementation for entry-level ray tracing workloads.

The NVIDIA RTX 5000 Max-Q Ada Generation is a discrete mobile workstation GPU based on the Ada Lovelace architecture, manufactured on a 5 nm process at TSMC. It uses the AD103 chip and belongs to the Ada-MW generation. The database records 45,900 million transistors on a 379 mm² die, giving a transistor density of 121.1 million per mm². This GPU has 9728 shading units, 304 texture mapping units, 112 render output units, 76 ray tracing cores, and 304 tensor cores. The base clock is 930 MHz with a boost clock of 1680 MHz. Memory runs at 2250 MHz with 18 Gbps effective speed, delivering 576.0 GB/s of bandwidth across a 256 bit bus. The GPU uses a PCIe 4.0 x16 bus interface and has a TDP of 120 W. The presence of 304 tensor cores gives it a substantial advantage in AI-accelerated workloads, while the 76 ray tracing cores represent a much larger ray tracing implementation than the Radeon 820M.

The architectural gap between the two is wide. The Radeon 820M is a low-power integrated solution designed for basic graphics and light gaming in portable devices, while the RTX 5000 Max-Q Ada Generation is a high-end discrete GPU intended for professional mobile workstations. The Radeon 820M's RDNA 3.5 architecture emphasizes efficiency at 15 W, while the Ada Lovelace architecture in the RTX 5000 Max-Q balances compute throughput, ray tracing, and tensor performance at 120 W. Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, which means they share API-level feature compatibility despite the massive difference in underlying hardware resources.

The Radeon 820M uses a PCIe 4.0 x8 connection, while the RTX 5000 Max-Q uses PCIe 4.0 x16. The wider bus on the NVIDIA part is consistent with its discrete memory and higher bandwidth requirements. The NVIDIA GPU also has a significantly higher pixel rate and texture rate, reflecting its larger ROP and TMU counts. The Radeon 820M's memory bandwidth is listed as system dependent, meaning its performance can vary substantially based on the host platform's memory configuration, whereas the RTX 5000 Max-Q has a fixed 576.0 GB/s of bandwidth.

Head-to-Head Benchmarks

The database contains no recorded head-to-head benchmark entries for the AMD Radeon 820M versus the NVIDIA RTX 5000 Max-Q Ada Generation. Both GPUs have an average benchmark score of 0 in the database, and both are placed at the 50th percentile among all GPUs. There are no nearest rival entries for either GPU in the recorded data, meaning no direct comparison scores or delta percentage values are available.

Given the absence of direct benchmark results, the hardware specifications provide the only basis for performance differentiation. The NVIDIA RTX 5000 Max-Q Ada Generation delivers 32.69 TFLOPS of FP32 compute, while the AMD Radeon 820M delivers 716.8 GFLOPS. This represents a substantial compute advantage for the NVIDIA GPU, roughly 45 times higher FP32 throughput based on the recorded figures. The FP16 performance follows the same pattern, with both GPUs achieving a 1:1 ratio with their FP32 numbers, so the RTX 5000 Max-Q also reaches 32.69 TFLOPS FP16 compared to 716.8 GFLOPS on the Radeon 820M.

Pixel throughput shows a similar disparity. The NVIDIA GPU achieves 188.2 GPixel/s, while the AMD GPU achieves 11.20 GPixel/s. Texture throughput is 510.7 GTexel/s on the RTX 5000 Max-Q versus 22.40 GTexel/s on the Radeon 820M. The memory bandwidth difference is also stark: the RTX 5000 Max-Q offers a fixed 576.0 GB/s, while the Radeon 820M's bandwidth is system dependent, which in practice means it shares the host's memory bandwidth and will be far lower.

The boost clock comparison is the one area where the AMD GPU shows a higher number, with 2800 MHz versus 1680 MHz on the NVIDIA part. However, clock speed alone does not compensate for the massive differences in shading units, texture units, ROPs, and memory bandwidth. The Radeon 820M's higher clock reflects its simpler architecture and lower thermal envelope, but the RTX 5000 Max-Q's 9728 shading units versus 128 shading units creates an overwhelming compute advantage.

Specification Differences

The two GPUs differ in nearly every measurable specification category. The manufacturing process differs: the AMD Radeon 820M uses 4 nm TSMC, while the NVIDIA RTX 5000 Max-Q uses 5 nm TSMC. The NVIDIA chip has 45,900 million transistors on a 379 mm² die, while the AMD chip's transistor count and die size are unknown.

Clock speeds differ in both base and boost. The AMD GPU has a 400 MHz base clock and 2800 MHz boost clock. The NVIDIA GPU has a 930 MHz base clock and 1680 MHz boost clock. Memory configuration is fundamentally different: the AMD GPU uses System Shared memory with system dependent bandwidth, while the NVIDIA GPU has 16 GB of GDDR6 on a 256 bit bus with 576.0 GB/s bandwidth.

Compute resources differ dramatically. The AMD GPU has 128 shading units, 8 TMUs, 4 ROPs, and 2 ray tracing cores. The NVIDIA GPU has 9728 shading units, 304 TMUs, 112 ROPs, and 76 ray tracing cores. The NVIDIA GPU also has 304 tensor cores, while the AMD GPU lists none. Pixel rate is 11.20 GPixel/s on the AMD part versus 188.2 GPixel/s on the NVIDIA part. Texture rate is 22.40 GTexel/s versus 510.7 GTexel/s. FP32 and FP16 throughput are both 716.8 GFLOPS on the AMD GPU and 32.69 TFLOPS on the NVIDIA GPU.

Power consumption differs by a factor of eight: 15 W for the AMD GPU versus 120 W for the NVIDIA GPU. Both are listed as IGP slot width with no power connectors. The bus interface differs, with PCIe 4.0 x8 on the AMD GPU and PCIe 4.0 x16 on the NVIDIA GPU. Display outputs are portable device dependent for both.

The release dates differ as well. The AMD Radeon 820M was released on 2025-02-28, while the NVIDIA RTX 5000 Max-Q Ada Generation was released on 2023-03-20. The AMD GPU's predecessor is listed as Navi II IGP, while the NVIDIA GPU's predecessor is Ampere-MW. The NVIDIA GPU has a successor listed as Blackwell-MW, while the AMD GPU has no successor recorded. Neither GPU has a launch MSRP recorded in the database.

Where Each One Wins

The AMD Radeon 820M is positioned for low-power integrated graphics scenarios. Its 15 W TDP makes it suitable for thin and light portable devices where power efficiency is a priority. The higher boost clock of 2800 MHz suggests it can respond quickly to burst workloads within its thermal envelope. Its RDNA 3.5 architecture with 2 ray tracing cores provides entry-level ray tracing support in a power-constrained design. The 4 nm process node gives it a manufacturing advantage in density and efficiency over the older 5 nm process used by the NVIDIA GPU. The system shared memory design means it has no dedicated memory overhead, which can be appropriate for basic computing tasks, light productivity, and casual gaming where memory capacity is less critical.

The NVIDIA RTX 5000 Max-Q Ada Generation is positioned for demanding professional mobile workloads. Its 120 W TDP enables far higher sustained performance, and the large compute resources support tasks that the AMD GPU cannot handle. The 9728 shading units and 304 tensor cores make it suited for AI-accelerated applications, while the 76 ray tracing cores provide substantial ray tracing capability. The 16 GB of GDDR6 memory with 576.0 GB/s bandwidth supports large datasets and high-resolution textures, which is critical for professional 3D rendering, video editing, and scientific visualization. The 304 TMUs and 112 ROPs deliver high fill rates that benefit high-resolution output and complex scene rendering.

The FP32 throughput of 32.69 TFLOPS versus 716.8 GFLOPS indicates that compute-heavy applications such as simulation, machine learning inference, and complex shader workloads will run significantly faster on the NVIDIA GPU. The texture rate of 510.7 GTexel/s versus 22.40 GTexel/s means texture-bound games and applications will show a large performance gap. The pixel rate of 188.2 GPixel/s versus 11.20 GPixel/s affects fill-rate-limited scenarios, particularly at high resolutions with heavy post-processing.

The Radeon 820M wins in power efficiency and clock speed. Its 15 W TDP is one-eighth of the NVIDIA GPU's 120 W TDP, which makes it the appropriate choice for devices with limited cooling and battery capacity. The 2800 MHz boost clock exceeds the NVIDIA GPU's 1680 MHz boost clock, which can translate to better performance in lightly threaded or latency-sensitive tasks that do not scale with core count. Its 4 nm process node is more advanced than the 5 nm node used by the NVIDIA GPU, which contributes to its efficiency profile.

The RTX 5000 Max-Q Ada Generation wins in every raw performance category recorded in the database. It has more shading units, TMUs, ROPs, ray tracing cores, tensor cores, memory capacity, memory bandwidth, pixel rate, texture rate, and FP32 throughput. The PCIe 4.0 x16 interface provides twice the bus width of the Radeon 820M's PCIe 4.0 x8 connection, which matters for data transfer between the GPU and host system. Its 16 GB of dedicated GDDR6 memory is a fundamental advantage over system shared memory, as it avoids contention with the CPU and provides predictable bandwidth.

The use-case split is therefore clear. The AMD Radeon 820M serves devices where power draw and thermal output are the primary constraints, such as ultraportable laptops and compact systems. The NVIDIA RTX 5000 Max-Q Ada Generation serves professional workstations where compute throughput, memory capacity, and feature support are the primary requirements. The database shows no benchmark overlap between the two, which is consistent with their very different target markets and hardware capabilities.