AMD Radeon 820M vs NVIDIA GeForce RTX 5080 Comparison

The AMD Radeon 820M and NVIDIA GeForce RTX 5080 occupy opposite ends of the graphics spectrum. The 820M is an integrated processor for thin-and-light laptops, while the RTX 5080 is a high-end desktop add-in board. The recorded data shows no direct head-to-head benchmarks between the two, but the specification sheets and available test scores for the RTX 5080 allow for a clear comparative analysis. The 820M holds no benchmark entries in the database, while the RTX 5080 has ten recorded test results across multiple suites.

Where Each One Wins

The use-case split is defined by the architectural roles each product serves. The AMD Radeon 820M is an integrated graphics processor (IGP) designed for portable systems. Its 15 W thermal design power, lack of dedicated memory, and dependence on system RAM make it suitable for basic display output, office applications, and lightweight media playback. It has no dedicated benchmark scores recorded, and its percentile ranking against all GPUs sits at 50, indicating it lands near the midpoint of the database’s historical results, which includes many older and low-power parts.

The NVIDIA GeForce RTX 5080 wins in every measurable performance category. Its recorded benchmark scores include a 3DMark Steel Nomad DX12 score of 8637, a Geekbench OpenCL score of 235901, and a Geekbench Vulkan score of 255450. In PassMark tests, it scores 36565 in G3D, 21789 in GPU Compute, 1415 in G2D, and lower legacy scores of 389 in DirectX 9, 324 in DirectX 11, 208 in DirectX 10, and 151 in DirectX 12. The RTX 5080’s average benchmark score is 56083, and it ranks in the 87th percentile of all GPUs.

The RTX 5080 also wins decisively on raw throughput metrics. Its pixel rate of 293.1 GPixel/s versus 11.20 GPixel/s for the 820M represents a 26-fold advantage. Texture rate stands at 879.3 GTexel/s versus 22.40 GTexel/s, a 39-fold gap. Floating-point performance is 56.28 TFLOPS versus 716.8 GFLOPS, a 78-fold difference. These figures indicate the RTX 5080 is built for high-resolution gaming, 3D rendering, GPU compute workloads, and any task requiring sustained heavy processing. The 820M, by contrast, delivers only enough throughput for integrated graphics duties.

Architecture Differences

The two GPUs share the same API support, both listing DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Beyond that, the architectures diverge completely.

The AMD Radeon 820M uses the RDNA 3.5 architecture, built on a 4 nm process at TSMC. It is part of the Navi III IGP generation for Strix Point Mobile, with the chip identified as Krackan Point 2. The GPU has 128 shading units, 8 texture mapping units, 4 render output units, and 2 ray tracing cores. It has no tensor cores listed. Its base clock is 400 MHz with a boost clock of 2800 MHz. Memory is entirely system-shared, with no dedicated VRAM, and bandwidth is listed as system dependent. The bus interface is PCIe 4.0 x8. The 820M uses no power connectors, fits an IGP slot width, and its display outputs are portable device dependent. It was released on February 28, 2025, and its predecessor is listed as Navi II IGP.

The NVIDIA GeForce RTX 5080 uses the Blackwell 2.0 architecture, built on a 5 nm process at TSMC. The chip is GB203, containing 45,600 million transistors across a 378 mm² die, yielding a transistor density of 120.6 million per square millimeter. The GPU has 10752 shading units, 336 texture mapping units, 112 render output units, 84 ray tracing cores, and 336 tensor cores. Its base clock is 2295 MHz with a boost clock of 2617 MHz. Memory is 16 GB of GDDR7 on a 256-bit bus, giving a bandwidth of 960.0 GB/s. The memory clock is listed at 1875 MHz with 30 Gbps effective speed. The bus interface is PCIe 5.0 x16. The RTX 5080 uses a single 16-pin power connector, requires a suggested power supply of 750 W, and fits a dual-slot width. Its display outputs include one HDMI 2.1b and three DisplayPort 2.1b connectors. Physical dimensions are 304 mm in length, 137 mm in height, and 40 mm in width. It was released on January 29, 2025, with a predecessor of GeForce 40 and a successor of GeForce 60. Its launch MSRP is 999 USD.

The transistor count alone shows the scale difference: 45,600 million for the RTX 5080 versus an unknown figure for the 820M. The process nodes differ by one nanometer, with AMD using 4 nm and NVIDIA using 5 nm, but the RTX 5080 compensates with vastly more silicon area.

Head-to-Head Benchmarks

The database contains no shared benchmark entries for the two GPUs. The 820M has an empty benchmarks array, while the RTX 5080 has ten recorded scores. A direct numerical comparison is therefore impossible for any single test. However, the RTX 5080’s individual scores can be interpreted against its nearest rivals to contextualize its performance tier.

The RTX 5080’s average benchmark score is 56083. Its closest competitor in the database is the AMD Radeon 8060S, which averages 55757, a delta of 0.6 percent. The AMD Radeon RX 6750 GRE 12 GB scores 55698, a 0.7 percent delta. The AMD Radeon Pro W5700X scores 54828, a 2.3 percent delta. The AMD Radeon RX 9070 GRE scores 57367, which is 2.2 percent higher than the RTX 5080. These deltas indicate the RTX 5080 sits in a tightly contested performance band, slightly ahead of some Radeon parts and slightly behind the RX 9070 GRE.

For the 820M, the absence of benchmark scores means its percentile rank of 50 is derived from other database entries. The RTX 5080’s percentile of 87 places it well above the majority of GPUs. The gap between the 50th and 87th percentile suggests the 820M performs like a typical mid-pack GPU, likely due to its low power envelope and shared memory, while the RTX 5080 operates near the top of the distribution.

The RTX 5080’s specific test results show variance across workloads. The Geekbench Vulkan score of 255450 exceeds the OpenCL score of 235901 by about 8 percent, indicating the architecture performs slightly better under Vulkan’s lower-level API. In PassMark, the G3D score of 36565 is far above the G2D score of 1415, confirming the GPU’s strength lies in 3D rendering rather than 2D operations. The legacy DirectX scores are all low, with DirectX 9 at 389, DirectX 11 at 324, DirectX 10 at 208, and DirectX 12 at 151, which is typical for modern GPUs optimized for current API versions.

The 3DMark Steel Nomad DX12 score of 8637 is a modern workload result, and it aligns with the GPU’s high shading unit count and memory bandwidth. The compute score of 21789 in PassMark GPU Compute reflects the tensor core and RT core capabilities, though the database does not provide separate ray tracing benchmarks.

The Verdict

The data indicates a clear separation of purpose. The AMD Radeon 820M is an integrated solution for portable devices, with a 15 W TDP, system-shared memory, and no dedicated benchmark scores. Its 50th percentile rank places it in the middle of the database, which is reasonable for an IGP. Users running basic productivity software, streaming video, or using a laptop for general tasks would find this GPU adequate, provided the system RAM is sufficient.

The NVIDIA GeForce RTX 5080 is a dedicated high-end GPU for desktop systems. Its 360 W TDP, 16 GB of GDDR7 memory, 960.0 GB/s bandwidth, and 10752 shading units position it for demanding applications. The recorded scores, such as 36565 in PassMark G3D and 235901 in Geekbench OpenCL, confirm its capability in 3D rendering and compute. The 87th percentile ranking places it among the faster GPUs in the database. Its nearest rivals, the Radeon 8060S and RX 6750 GRE 12 GB, are within a single percentage point, meaning the RTX 5080’s performance is competitive but not dominant in its class.

The choice between the two is dictated by hardware context. The 820M cannot be installed in a desktop, and the RTX 5080 cannot be integrated into a thin laptop. The 820M’s 2 ray tracing cores and RDNA 3.5 architecture provide entry-level features, but the system-shared memory and 4 ROPs limit output resolution and frame rates. The RTX 5080’s 84 ray tracing cores and 336 tensor cores enable advanced rendering and AI workloads, with the 112 ROPs supporting high pixel throughput.

For gaming at high settings or professional GPU compute, the RTX 5080 is the only viable option between the two. For basic laptop use with minimal 3D demands, the 820M suffices. The RTX 5080’s launch MSRP is 999 USD, and its suggested power supply is 750 W, both of which indicate a high-end segment. The 820M has no MSRP listed, consistent with its role as a component within a mobile processor.

FAQ

Q: Which GPU has more shading units?

A: The NVIDIA GeForce RTX 5080 has 10752 shading units, while the AMD Radeon 820M has 128.

Q: What is the memory configuration for each GPU?

A: The RTX 5080 uses 16 GB of GDDR7 on a 256-bit bus with 960.0 GB/s bandwidth. The 820M uses system-shared memory with system-dependent bandwidth.

Q: How do their thermal design powers compare?

A: The RTX 5080 has a TDP of 360 W, while the 820M has a TDP of 15 W.

Q: What API versions do both support?

A: Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What is the RTX 5080’s average benchmark score and percentile?

A: The RTX 5080 has an average benchmark score of 56083 and ranks in the 87th percentile of all GPUs.

Q: What are the nearest rivals to the RTX 5080 in the database?

A: The AMD Radeon 8060S (55757, 0.6 percent delta), AMD Radeon RX 6750 GRE 12 GB (55698, 0.7 percent delta), AMD Radeon Pro W5700X (54828, 2.3 percent delta), and AMD Radeon RX 9070 GRE (57367, -2.2 percent delta).

Specification Differences

The two GPUs differ in nearly every major specification field. The process node is 4 nm for the 820M and 5 nm for the RTX 5080, both fabricated by TSMC. The 820M has an unknown transistor count and die size, while the RTX 5080 has 45,600 million transistors on a 378 mm² die with a density of 120.6M per mm². Base clocks are 400 MHz for the 820M and 2295 MHz for the RTX 5080. Boost clocks are 2800 MHz and 2617 MHz, respectively. Memory size is system-shared for the 820M versus 16 GB for the RTX 5080. Memory type is system-shared versus GDDR7. Bus width is system-shared versus 256 bit. Bandwidth is system dependent versus 960.0 GB/s. Shading units are 128 versus 10752. TMUs are 8 versus 336. ROPs are 4 versus 112. RT cores are 2 versus 84. Tensor cores are absent on the 820M and number 336 on the RTX 5080. Pixel rate is 11.20 GPixel/s versus 293.1 GPixel/s. Texture rate is 22.40 GTexel/s versus 879.3 GTexel/s. FP32 performance is 716.8 GFLOPS versus 56.28 TFLOPS. FP16 performance is 716.8 GFLOPS (1:1) versus 56.28 TFLOPS (1:1). TDP is 15 W versus 360 W. Slot width is IGP versus dual-slot. Power connectors are none versus one 16-pin. Suggested PSU is not listed for the 820M and is 750 W for the RTX 5080. Bus interface is PCIe 4.0 x8 versus PCIe 5.0 x16. Display outputs are portable device dependent versus one HDMI 2.1b and three DisplayPort 2.1b. Release dates are February 28, 2025, for the 820M and January 29, 2025, for the RTX 5080. The 820M’s predecessor is Navi II IGP, while the RTX 5080’s predecessor is GeForce 40 and successor is GeForce 60. The RTX 5080 lists physical dimensions of 304 mm length, 137 mm height, and 40 mm width, while the 820M has no dimensions listed. The RTX 5080 has a launch MSRP of 999 USD, while the 820M has none.