AMD Radeon 820M vs NVIDIA GeForce RTX 5070 Comparison

FAQ

Q: What are the two products compared on this page?

A: The AMD Radeon 820M is an integrated graphics processor (IGP) based on the Krackan Point 2 chip, using RDNA 3.5 architecture on a 4 nm TSMC process. The NVIDIA GeForce RTX 5070 is a discrete GeForce 50-series card using the GB205 chip, Blackwell 2.0 architecture, on a 5 nm TSMC process.

Q: What is the thermal design power difference between the two?

A: The Radeon 820M has a 15 W TDP, while the RTX 5070 has a 250 W TDP. The RTX 5070 requires a 600 W suggested PSU and uses a 1x 16-pin power connector, whereas the 820M uses no power connectors as an IGP.

Q: How do the memory configurations differ?

A: The Radeon 820M uses system-shared memory with system-dependent bandwidth. The RTX 5070 has 12 GB of GDDR7 memory on a 192-bit bus, delivering 672.0 GB/s bandwidth.

Q: What is the RTX 5070's benchmark percentile ranking?

A: The RTX 5070 sits at the 82nd percentile against all GPUs in the database, with an average benchmark score of 40377. Its nearest rivals include the AMD Radeon Pro 580 (0.1% delta) and AMD Radeon Pro 5300 (-1.2% delta).

Q: When were these products released?

A: The Radeon 820M released on 2025-02-28, and the RTX 5070 released on 2025-03-03. The RTX 5070's predecessor is GeForce 40, and its successor is GeForce 60.

Q: What API support do both cards provide?

A: Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, according to the recorded data.

Where Each One Wins

The Radeon 820M wins in mobility integration and power efficiency. As an IGP, it requires no slot width, uses no power connectors, and fits into portable devices with system-dependent display outputs. Its 15 W TDP makes it suitable for thin-and-light laptops where power draw is constrained. The 820M's boost clock reaches 2800 MHz, which is higher than the RTX 5070's 2512 MHz boost, though this reflects the different design goals: an integrated part maximizing clock efficiency versus a discrete card prioritizing raw throughput.

The RTX 5070 wins decisively in raw performance and feature density. It has 6144 shading units versus 128, 192 TMUs versus 8, and 80 ROPs versus 4. The RTX 5070 also carries 48 RT cores and 192 tensor cores, while the 820M has 2 RT cores and no tensor cores. The discrete card's pixel rate is 201.0 GPixel/s versus 11.20 GPixel/s, and its texture rate is 482.3 GTexel/s versus 22.40 GTexel/s. The RTX 5070's FP32 throughput is 30.87 TFLOPS versus 716.8 GFLOPS, a 43x difference in raw compute.

For memory bandwidth, the RTX 5070's 672.0 GB/s dedicated GDDR7 vastly exceeds the system-shared, system-dependent bandwidth of the 820M. The RTX 5070 also uses PCIe 5.0 x16 versus the 820M's PCIe 4.0 x8, doubling the available bus lanes and moving to a newer standard.

Architecture Differences

The Radeon 820M uses RDNA 3.5 architecture, built on a 4 nm TSMC process. It belongs to the Navi III IGP generation for Strix Point Mobile. Its transistor count and die size are listed as unknown. The chip is Krackan Point 2, and the architecture supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.

The RTX 5070 uses Blackwell 2.0 architecture, built on a 5 nm TSMC process. It has 31,100 million transistors on a 263 mm² die, giving a transistor density of 118.3M per mm². The GB205 chip belongs to the GeForce 50 generation, with the predecessor being GeForce 40 and successor GeForce 60. It also supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.

The 820M integrates 2 RT cores, while the RTX 5070 has 48. The 820M has no tensor cores, whereas the RTX 5070 has 192. Both support FP16 at a 1:1 ratio with FP32, but the absolute throughput differs dramatically: 716.8 GFLOPS for the 820M versus 30.87 TFLOPS for the RTX 5070.

The process nodes differ: 4 nm for AMD versus 5 nm for NVIDIA, both from TSMC. The 820M's smaller node allows higher boost clocks (2800 MHz) despite the low 15 W TDP, while the RTX 5070's larger die with 31,100 million transistors operates at a lower 2512 MHz boost but with far more execution units.

Specification Differences

The two cards differ across nearly every specification field. The Radeon 820M is an IGP with no slot width, while the RTX 5070 is a dual-slot card measuring 245 mm in length, 115 mm in height, and 40 mm in width.

Clocks: The 820M has a 400 MHz base and 2800 MHz boost. The RTX 5070 has a 2325 MHz base and 2512 MHz boost. The RTX 5070's memory clock is 1750 MHz at 28 Gbps effective, while the 820M's memory is system shared.

Memory: The 820M uses system-shared size, type, and bus width, with system-dependent bandwidth. The RTX 5070 has 12 GB GDDR7, a 192-bit bus, and 672.0 GB/s bandwidth.

Compute units: The 820M has 128 shading units, 8 TMUs, and 4 ROPs. The RTX 5070 has 6144 shading units, 192 TMUs, and 80 ROPs. RT cores: 2 versus 48. Tensor cores: none versus 192.

Rates: The 820M's pixel rate is 11.20 GPixel/s and texture rate is 22.40 GTexel/s. The RTX 5070's pixel rate is 201.0 GPixel/s and texture rate is 482.3 GTexel/s. FP32: 716.8 GFLOPS versus 30.87 TFLOPS. FP16 is identical in ratio (1:1) but different in magnitude.

Power: The 820M uses 15 W TDP with no power connectors. The RTX 5070 uses 250 W TDP with a 1x 16-pin connector and a 600 W suggested PSU.

Bus interface: PCIe 4.0 x8 for the 820M, PCIe 5.0 x16 for the RTX 5070.

Display outputs: The 820M is portable-device dependent, while the RTX 5070 has 1x HDMI 2.1b and 3x DisplayPort 2.1b.

Release dates differ by three days: 2025-02-28 for the 820M, 2025-03-03 for the RTX 5070.

The RTX 5070 has a launch MSRP of 549 USD. The 820M has no launch MSRP field in the data.

Head-to-Head Benchmarks

The database lists no direct head-to-head benchmark results between these two products. However, the RTX 5070's individual benchmark scores provide a clear performance profile. In 3DMark Steel Nomad DX12, it scores 5077. In Geekbench OpenCL, it scores 172660, and in Geekbench Vulkan, 178923.

PassMark results for the RTX 5070 show a G3D score of 29137, a GPU compute score of 15787, and a G2D score of 1305. DirectX-specific PassMark tests show 180 for DX10, 277 for DX11, 108 for DX12, and 320 for DX9.

The Radeon 820M has no recorded benchmark scores in the database, with an average benchmark score of 0 and an empty benchmarks array. Its percentile ranking is 50, which places it at the median of all GPUs, but without measured data points to verify actual performance.

The RTX 5070's percentile rank of 82 indicates it outperforms 82% of all GPUs in the database. Its nearest rival, the AMD Radeon Pro 580, scores 40318 on average, a 0.1% delta. The AMD Radeon Pro WX 7100 scores 40063, a 0.8% delta. The AMD Radeon Pro 5300 scores 40870, a -1.2% delta, meaning the RTX 5070 trails it slightly. The NVIDIA RTX A500 Mobile scores 39568, a 2% delta, meaning the RTX 5070 leads it by 2%.

These rival comparisons show the RTX 5070 sits in a tight performance cluster: within 2% of four comparable cards. The data indicates the RTX 5070's average score of 40377 is essentially tied with the Radeon Pro 580 and Radeon Pro WX 7100, slightly behind the Radeon Pro 5300, and modestly ahead of the RTX A500 Mobile.

Since the 820M has no benchmark scores, the head-to-head comparison relies on architectural specifications rather than measured results. The gap in shading units (128 versus 6144), texture units (8 versus 192), and ROPs (4 versus 80) indicates the RTX 5070 processes geometry and pixels at vastly higher rates. The FP32 throughput difference of 716.8 GFLOPS versus 30.87 TFLOPS is the most direct measure of compute capability.

The Verdict

The data shows two products designed for entirely different segments. The AMD Radeon 820M serves as an integrated solution for portable devices, with a 15 W TDP, no power connectors, and system-shared memory. Its 50th percentile ranking reflects a mid-tier position among all GPUs, though it has no recorded benchmark scores to confirm on-paper specifications.

The NVIDIA GeForce RTX 5070 is a discrete, dual-slot card requiring 250 W and a 600 W PSU. Its 82nd percentile ranking places it well above the majority of GPUs. The benchmark data confirms this: PassMark G3D at 29137, Geekbench OpenCL at 172660, and 3DMark Steel Nomad at 5077 all indicate strong performance for demanding workloads.

For users needing integrated graphics in a thin-and-light portable device, the 820M is the only option between these two. It fits within a 15 W envelope and uses no additional power connectors. Its 2800 MHz boost clock is notably high for an IGP, and the 4 nm process node suggests efficient operation.

For users building a desktop or high-performance laptop where power delivery is available, the RTX 5070 delivers the recorded performance. Its 6144 shading units, 48 RT cores, and 192 tensor cores provide hardware support for ray tracing and AI workloads that the 820M cannot match. The 12 GB GDDR7 memory with 672.0 GB/s bandwidth removes the system-memory bottleneck inherent to the 820M's shared design.

The verdict from the data is straightforward: the RTX 5070 is the performance choice, the 820M is the integration choice. Neither product competes in the other's segment. The 820M's lack of recorded benchmarks means its actual performance cannot be verified from this database, while the RTX 5070's measured scores and 82nd percentile ranking provide concrete evidence of its capabilities. The RTX 5070's launch MSRP is 549 USD.