AMD Radeon 820M vs NVIDIA GeForce RTX 4070 Comparison

AMD Radeon 820M is an integrated graphics processor built on the RDNA 3.5 architecture, while the NVIDIA GeForce RTX 4070 is a discrete add-in board from the GeForce 40-series based on Ada Lovelace. The database records no direct head-to-head benchmark entries between the two, but the available specification data and the RTX 4070’s recorded benchmark suite allow for a structural comparison. The 820M occupies the 50th percentile among all GPUs in the database with an average benchmark score of zero, whereas the RTX 4070 sits at the 81st percentile with an average benchmark score of 37,648. The RTX 4070’s nearest rivals in the database include the NVIDIA Tesla P4 (37,628, 0.1% delta), the AMD Radeon RX Vega 56 (37,507, 0.4% delta), the NVIDIA GeForce RTX 4080 Mobile (38,135, -1.3% delta), and the AMD Radeon PRO W6400 (37,157, 1.3% delta).

Where Each One Wins

The AMD Radeon 820M is an integrated processor intended for portable devices, with a 15 W TDP, system-shared memory, and no dedicated power connectors. Its design priorities center on low power consumption and integration into a mobile chip, not on standalone compute throughput. The RTX 4070, by contrast, is a dual-slot discrete card with a 200 W TDP, a 16-pin power connector, and a suggested 550 W power supply. The recorded data shows the RTX 4070 winning in every benchmark category it has been tested in, which is expected given the fundamental difference in scope between an IGP and a desktop-class discrete GPU.

The 820M’s advantage is structural rather than performance-based: it requires no additional power connector, fits within an integrated form factor, and depends on system memory, making it suitable for thin-and-light portable designs. The RTX 4070 wins on raw graphics capability, as shown by its PassMark G3D score of 26,927, its Geekbench OpenCL score of 154,858, and its Geekbench Vulkan score of 174,152. The 820M has no recorded benchmark scores in the database, so every quantitative comparison in this analysis relies on the RTX 4070’s measured results and the two products’ respective specifications.

For users prioritizing battery-powered mobility and minimal thermal footprint, the 820M is the only viable option of the two, since the RTX 4070 requires a discrete slot, a 16-pin connector, and a 550 W power supply. For any workload that stresses graphics throughput, the RTX 4070 is the clear winner on every metric recorded. The data shows no scenario where the 820M outperforms the RTX 4070 in measured performance; its wins are confined to integration and power characteristics.

FAQ

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

A: The NVIDIA GeForce RTX 4070 has an average benchmark score of 37,648, while the AMD Radeon 820M has an average benchmark score of 0 in the database.

Q: How do the two compare in memory configuration?

A: The RTX 4070 uses 12 GB of GDDR6X memory on a 192-bit bus with 504.2 GB/s bandwidth. The 820M uses system-shared memory with system-dependent bandwidth and no dedicated VRAM.

Q: What are the TDP requirements for each?

A: The 820M has a 15 W TDP and uses no power connector. The RTX 4070 has a 200 W TDP, uses a single 16-pin connector, and has a suggested power supply of 550 W.

Q: What is the RTX 4070’s percentile ranking?

A: The RTX 4070 sits at the 81st percentile among all GPUs in the database, with an average score of 37,648.

Q: Does the 820M have any recorded benchmark results?

A: No, the 820M has an empty benchmark array and an average benchmark score of 0. The RTX 4070 has ten recorded benchmark results spanning 3DMark Steel Nomad, Geekbench OpenCL and Vulkan, and multiple PassMark tests.

Q: What is the closest rival to the RTX 4070 in the database?

A: The NVIDIA Tesla P4 is the closest, with an average score of 37,628 and a delta of 0.1% relative to the RTX 4070’s 37,648.

Head-to-Head Benchmarks

No direct head-to-head benchmark entries exist in the database between the AMD Radeon 820M and the NVIDIA GeForce RTX 4070. The wins count is zero for the 820M and zero for the RTX 4070 in the head-to-head field, meaning the database does not contain paired test results. However, the RTX 4070’s standalone benchmark suite provides concrete numbers for analysis.

In 3DMark Steel Nomad DX12, the RTX 4070 records a score of 3,854. In Geekbench OpenCL, it scores 154,858, and in Geekbench Vulkan, it scores 174,152. The PassMark suite shows a G3D score of 26,927, a GPU compute score of 14,720, a DirectX 10 score of 139, a DirectX 11 score of 244, a DirectX 12 score of 103, a DirectX 9 score of 320, and a G2D score of 1,164. The 820M has no comparable numbers in the database, so its performance cannot be placed on the same scale.

The RTX 4070’s nearest rival comparisons confirm its position: the Tesla P4 is 0.1% behind, the RX Vega 56 is 0.4% behind, the RTX 4080 Mobile is 1.3% ahead, and the Radeon PRO W6400 is 1.3% behind. These deltas are all small, indicating the RTX 4070 sits in a tightly clustered performance band around the 37,600 to 38,100 average score range. The 820M, by contrast, has no rivals listed and no score to compare.

Without head-to-head data, the only quantitative conclusion is that the RTX 4070 delivers substantial measured graphics performance across multiple APIs, while the 820M delivers no recorded benchmark output. The RTX 4070’s pixel rate of 158.4 GPixel/s and texture rate of 455.4 GTexel/s far exceed the 820M’s 11.20 GPixel/s and 22.40 GTexel/s, and its FP32 throughput of 29.15 TFLOPS dwarfs the 820M’s 716.8 GFLOPS. These specification-level differences align with the absence of any 820M benchmark wins.

Specification Differences

The two GPUs differ in nearly every measured specification. The 820M uses a 4 nm process node, while the RTX 4070 uses a 5 nm node, both fabricated by TSMC. The RTX 4070 has 35,800 million transistors on a 294 mm² die with a transistor density of 121.8M per mm²; the 820M’s transistor count and die size are unknown. Clock speeds differ substantially: the 820M has a 400 MHz base and 2,800 MHz boost, while the RTX 4070 has a 1,920 MHz base and 2,475 MHz boost. The RTX 4070’s memory runs at 1,313 MHz with 21 Gbps effective speed.

Memory capacity, type, bus width, and bandwidth all differ. The 820M uses system-shared memory with a system-shared bus width and system-dependent bandwidth. The RTX 4070 has 12 GB of GDDR6X on a 192-bit bus with 504.2 GB/s bandwidth. The 820M has 128 shading units, 8 TMUs, and 4 ROPs, while the RTX 4070 has 5,888 shading units, 184 TMUs, and 64 ROPs. Ray tracing cores number 2 on the 820M versus 46 on the RTX 4070. The RTX 4070 also has 184 tensor cores, while the 820M has none listed.

Pixel rate, texture rate, and FP32 and FP16 throughput all favor the RTX 4070. The 820M delivers 11.20 GPixel/s, 22.40 GTexel/s, and 716.8 GFLOPS for both FP32 and FP16. The RTX 4070 delivers 158.4 GPixel/s, 455.4 GTexel/s, and 29.15 TFLOPS for both FP32 and FP16. Power and physical dimensions also differ: the 820M is a 15 W IGP with no slot width, while the RTX 4070 is a 200 W dual-slot card measuring 240 mm long, 110 mm tall, and 40 mm wide. The bus interface is PCIe 4.0 x8 for the 820M and PCIe 4.0 x16 for the RTX 4070. Display outputs are portable-device dependent for the 820M and 1x HDMI 2.1 plus 3x DisplayPort 1.4a for the RTX 4070.

Architecture Differences

The 820M is built on RDNA 3.5 and belongs to the Navi III IGP generation for Strix Point Mobile, using the Krackan Point 2 chip. The RTX 4070 uses the Ada Lovelace architecture with the AD104 chip and belongs to the GeForce 40 generation. The 820M is an integrated processor, whereas the RTX 4070 is a discrete card. The 820M’s predecessor is listed as Navi II IGP, and the RTX 4070’s predecessor is GeForce 30, with its successor being GeForce 50.

DirectX support is identical: both support 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The 820M’s production status is Active, while the RTX 4070 is End-of-life. The RTX 4070 has a launch MSRP of 599 USD. The 820M has no launch MSRP recorded. Release dates differ as well: the 820M was released on 2025-02-28, while the RTX 4070 was released on 2023-04-11.

Architecturally, the RTX 4070 includes tensor cores, which the 820M lacks, and has far more ray tracing cores. The 820M’s FP16 throughput matches its FP32 at a 1:1 ratio, and the RTX 4070 also shows a 1:1 FP16 to FP32 ratio. Both support the same API set, so software compatibility at the API level is equivalent, though hardware capabilities diverge sharply in shading units, TMUs, ROPs, and memory subsystem.

The Verdict

The recorded data places the NVIDIA GeForce RTX 4070 at the 81st percentile with an average benchmark score of 37,648, supported by ten individual benchmark results. The AMD Radeon 820M sits at the 50th percentile with an average score of 0 and no recorded benchmarks. For any user selecting between these two based on database measurements, the RTX 4070 is the only option with demonstrated graphics performance.

The 820M’s role is limited to integrated, low-power portable systems where the 15 W TDP and absence of power connectors are decisive. The RTX 4070 requires a dual-slot chassis, a 16-pin connector, and a 550 W power supply, making it unsuitable for such contexts. The RTX 4070’s 12 GB GDDR6X memory, 504.2 GB/s bandwidth, 29.15 TFLOPS FP32, and 46 ray tracing cores position it as a high-performance discrete GPU, while the 820M’s 128 shading units, 2 ray tracing cores, and system-shared memory define it as a basic integrated solution.

The RTX 4070’s nearest rivals all fall within 1.3% of its average score, indicating a competitive field at its performance tier. The 820M has no rivals listed, reflecting its different market position. The verdict from the data is straightforward: the RTX 4070 is the superior performer by every measured metric, and the 820M is distinguished only by its integration and power profile. Users needing graphics performance should choose the RTX 4070; users constrained to an IGP form factor have only the 820M as the suitable option.