AMD Radeon 820M vs NVIDIA GeForce RTX 5070 Mobile Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive performance gap between the AMD Radeon 820M and the NVIDIA GeForce RTX 5070 Mobile. The Radeon 820M has no benchmark entries in the database, while the RTX 5070 Mobile carries nine recorded scores across multiple test suites. The RTX 5070 Mobile's average benchmark score is 29,928, placing it at the 75th percentile of all GPUs. The Radeon 820M sits at the 50th percentile with an average score of 0, meaning no measurable performance data exists for direct comparison.

The RTX 5070 Mobile delivers its strongest result in Geekbench OpenCL with a score of 122,238. Its Geekbench Vulkan result follows closely at 116,960. These two scores represent the most demanding compute workloads in the dataset, and both indicate substantial throughput capacity. In Passmark testing, the G3D score of 20,355 far exceeds the GPU compute score of 8,279, showing that rasterization performance outpaces pure compute workloads in this configuration.

Passmark DirectX results show a specific pattern. DirectX 9 yields 214 points, DirectX 11 yields 192, DirectX 10 yields 129, and DirectX 12 yields 93. The progression suggests older API workloads run relatively faster than newer ones on this architecture, though all four scores remain far below the G3D aggregate. The G2D score of 896 indicates 2D acceleration capability that is proportionally stronger than the DirectX 12 result.

The RTX 5070 Mobile's nearest rivals in the database confirm its positioning. The NVIDIA GeForce RTX 3070 Ti averages 29,945, a delta of -0.1% against the RTX 5070 Mobile. The NVIDIA GeForce RTX 2080 Ti averages 29,783, a delta of 0.5%. The AMD Radeon RX 6800 averages 30,095, a delta of -0.6%. The AMD Radeon RX 6700 averages 30,433, a delta of -1.7%. These deltas show the RTX 5070 Mobile sits within 1.7% of four established desktop-class GPUs, with the largest gap being a 1.7% deficit to the RX 6700 and the smallest being a 0.5% advantage over the RTX 2080 Ti.

Because the Radeon 820M has no recorded benchmark scores, the head-to-head comparison rests entirely on the RTX 5070 Mobile's dataset. The absence of data for the Radeon 820M is itself informative: the database shows zero measured results, while the RTX 5070 Mobile has nine. No single test in the database shows the Radeon 820M ahead on any metric.

Where Each One Wins

The RTX 5070 Mobile wins every benchmark category where data exists. Its strongest domain is general compute as measured by GeekBench OpenCL, where it scores 122,238. The Vulkan workload follows at 116,960, indicating strong cross-API compute performance. In Passmark testing, the G3D score of 20,355 shows the GPU's primary strength lies in 3D graphics workloads. The GPU compute score of 8,279 is roughly 40% of the G3D score, indicating compute-intensive tasks run slower than graphics rendering tasks on this hardware.

The DirectX API results reveal workload-specific behavior. DirectX 9 scores 214, which is the highest among the four DirectX tests. DirectX 11 follows at 192, then DirectX 10 at 129, and DirectX 12 at 93. The gap between DirectX 9 and DirectX 12 is 121 points, meaning the older API runs more than twice as fast as the newest one. This pattern suggests legacy titles see relatively better performance, while modern DirectX 12 workloads place greater demands on the architecture.

The Radeon 820M has no recorded wins in any category. The database shows zero benchmark entries for this GPU, so no use-case advantage can be identified from measured data. The RTX 5070 Mobile's 75th percentile ranking versus the Radeon 820M's 50th percentile further emphasizes the gap, though the percentile values reflect different data availability. The RTX 5070 Mobile's 8 GB of dedicated GDDR7 memory on a 128-bit bus with 384.0 GB/s bandwidth gives it a clear memory advantage over the Radeon 820M's system-shared memory configuration, though no benchmark scores exist to quantify the Radeon 820M's shared-memory performance.

Architecture Differences

The two GPUs share several architectural traits. Both use TSMC as the foundry, support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, and both are classified as IGP slot width with no power connectors. Both are active production parts. The similarities end there.

The Radeon 820M uses the Krackan Point 2 chip built on RDNA 3.5 architecture, fabricated on a 4 nm process. It belongs to the Navi III IGP generation. The RTX 5070 Mobile uses the GB206 chip built on Blackwell 2.0 architecture, fabricated on a 5 nm process. It belongs to the GeForce 50 Mobile generation. The Radeon 820M's transistor count and die size are listed as unknown, while the RTX 5070 Mobile carries 21,900 million transistors on a 181 mm² die, yielding a transistor density of 121.0M per mm².

The compute resources differ substantially. The Radeon 820M has 128 shading units, 8 texture mapping units, 4 render output units, and 2 ray tracing cores. The RTX 5070 Mobile has 4,608 shading units, 144 TMUs, 48 ROPs, 36 ray tracing cores, and 144 tensor cores. The RTX 5070 Mobile has 36 times as many shading units, 18 times as many TMUs, 12 times as many ROPs, and 18 times as many ray tracing cores. The Radeon 820M lists no tensor core count, while the RTX 5070 Mobile includes 144.

Clock behavior also diverges. The Radeon 820M has a 400 MHz base clock and a 2,800 MHz boost clock. The RTX 5070 Mobile has a 907 MHz base clock and a 1,425 MHz boost clock. The Radeon 820M's boost clock is nearly double the RTX 5070 Mobile's, but the far larger execution unit count on the RTX 5070 Mobile overwhelms this frequency advantage. Memory clocks show a similar pattern: the Radeon 820M uses system-shared memory, while the RTX 5070 Mobile runs at 1500 MHz with 24 Gbps effective speed.

The memory subsystems are fundamentally different. The Radeon 820M has system-shared memory with system-dependent bandwidth. The RTX 5070 Mobile has 8 GB of GDDR7 on a 128-bit bus with 384.0 GB/s bandwidth. The bus interface also differs: the Radeon 820M uses PCIe 4.0 x8, while the RTX 5070 Mobile uses PCIe 5.0 x16. The RTX 5070 Mobile's interface provides both a wider and newer connection to the host system.

The RTX 5070 Mobile's predecessor is the GeForce 40 Mobile, while the Radeon 820M's predecessor is the Navi II IGP. The Radeon 820M was released on February 28, 2025, and the RTX 5070 Mobile followed on April 14, 2025. The RTX 5070 Mobile carries a 50 W TDP, while the Radeon 820M is rated at 15 W.

FAQ

Q: How does the RTX 5070 Mobile compare to its nearest rivals in average score?

A: The RTX 5070 Mobile averages 29,928. The RTX 3070 Ti averages 29,945, which is 0.1% higher. The RTX 2080 Ti averages 29,783, which is 0.5% lower. The RX 6800 averages 30,095, which is 0.6% higher. The RX 6700 averages 30,433, which is 1.7% higher.

Q: What is the largest single benchmark score recorded for the RTX 5070 Mobile?

A: The GeekBench OpenCL test produced the highest score at 122,238. The Vulkan test follows at 116,960. The Passmark G3D score of 20,355 is the highest Passmark result.

Q: Does the Radeon 820M have any recorded benchmark scores?

A: The database contains no benchmark entries for the Radeon 820M. Its average benchmark score is listed as 0, and no nearest rivals are recorded for it.

Q: What are the memory specifications of each GPU?

A: The RTX 5070 Mobile has 8 GB of GDDR7 memory on a 128-bit bus with 384.0 GB/s bandwidth. The Radeon 820M uses system-shared memory with system-dependent bandwidth.

Q: Which GPU has the higher boost clock?

A: The Radeon 820M has a boost clock of 2,800 MHz, while the RTX 5070 Mobile has a boost clock of 1,425 MHz. The Radeon 820M's boost clock is nearly double, but the RTX 5070 Mobile has 36 times as many shading units.

Q: What is the percentile ranking for each GPU in the database?

A: The RTX 5070 Mobile ranks at the 75th percentile of all GPUs. The Radeon 820M ranks at the 50th percentile.

Specification Differences

The two GPUs differ in nearly every specification category. The Radeon 820M uses the Krackan Point 2 chip with RDNA 3.5 architecture on a 4 nm process. The RTX 5070 Mobile uses the GB206 chip with Blackwell 2.0 architecture on a 5 nm process. The Radeon 820M's transistor count and die size are unknown, while the RTX 5070 Mobile has 21,900 million transistors on a 181 mm² die.

Compute unit counts show the largest divergence. The Radeon 820M has 128 shading units, 8 TMUs, 4 ROPs, and 2 ray tracing cores. The RTX 5070 Mobile has 4,608 shading units, 144 TMUs, 48 ROPs, 36 ray tracing cores, and 144 tensor cores. The Radeon 820M has no listed tensor core count.

Clock speeds favor the Radeon 820M in boost frequency. The Radeon 820M runs at 400 MHz base and 2,800 MHz boost. The RTX 5070 Mobile runs at 907 MHz base and 1,425 MHz boost. The Radeon 820M's boost clock is 1,375 MHz higher, but its execution unit count is 36 times lower.

Memory configurations are entirely different. The Radeon 820M uses system-shared memory with system-dependent bandwidth. The RTX 5070 Mobile has 8 GB GDDR7 at 1500 MHz with 24 Gbps effective speed, a 128-bit bus, and 384.0 GB/s bandwidth. The bus interface differs as well: PCIe 4.0 x8 for the Radeon 820M versus PCIe 5.0 x16 for the RTX 5070 Mobile.

The Radeon 820M delivers 11.20 GPixel/s pixel rate and 22.40 GTexel/s texture rate, with 716.8 GFLOPS FP32 and FP16 at 1:1 ratio. The RTX 5070 Mobile delivers 68.40 GPixel/s pixel rate and 205.2 GTexel/s texture rate, with 13.13 TFLOPS FP32 and FP16 at 1:1 ratio. The RTX 5070 Mobile's pixel rate is roughly six times higher, its texture rate roughly nine times higher, and its FP32 throughput roughly 18 times higher. TDP ratings are 15 W for the Radeon 820M and 50 W for the RTX 5070 Mobile. Release dates are February 28, 2025 for the Radeon 820M and April 14, 2025 for the RTX 5070 Mobile. The predecessors differ: Navi II IGP for AMD, GeForce 40 Mobile for NVIDIA.