AMD Radeon 840M vs NVIDIA RTX 500 Mobile Ada Generation Comparison

AMD Radeon 840M and NVIDIA RTX 500 Mobile Ada Generation are two very different mobile graphics solutions, one an integrated processor graphics unit and the other a discrete-class mobile part. The database lists no direct head-to-head benchmark scores for these two, so the comparison relies on the recorded specification data and the measured performance characteristics of each part individually. Both sit at the 50th percentile of all GPUs in the database, indicating they occupy a similar performance tier in the overall distribution, but their architectural approaches and resource allocations differ substantially.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between the AMD Radeon 840M and the NVIDIA RTX 500 Mobile Ada Generation. With zero recorded wins for either side and no benchmark entries in the head-to-head field, any quantitative comparison must come from the raw computed throughput numbers and the architectural resources each GPU deploys.

In raw shader throughput, the NVIDIA RTX 500 Mobile Ada Generation delivers 8.294 TFLOPS of FP32 compute. The AMD Radeon 840M produces 1,484.8 GFLOPS, which converts to approximately 1.485 TFLOPS. That places the NVIDIA part at roughly 5.6 times the FP32 throughput of the AMD part. The gap is similarly wide in texture work: the NVIDIA GPU renders 129.6 GTexel/s, while the AMD IGP manages 46.40 GTexel/s. That is a 2.79 times advantage for the RTX 500 Mobile. Pixel throughput shows the NVIDIA part at 64.80 GPixel/s against 23.20 GPixel/s for the AMD Radeon 840M, a 2.79 times difference as well.

The NVIDIA RTX 500 Mobile also leads in memory bandwidth, a critical factor for many workloads. Its 128.0 GB/s bandwidth from 2000 MHz 16 Gbps effective GDDR6 memory compares to the AMD Radeon 840M's system-shared memory with bandwidth listed as "System Dependent." The AMD part cannot match a fixed 128.0 GB/s figure when its memory performance depends entirely on the host system's configuration. The NVIDIA GPU also has a dedicated 4 GB memory pool, while the AMD IGP must share system memory.

Clock speeds tell a more nuanced story. The AMD Radeon 840M has a lower base clock of 400 MHz but boosts to 2900 MHz. The NVIDIA RTX 500 Mobile runs at a 1485 MHz base and 2025 MHz boost. The AMD part's boost clock is 875 MHz higher than the NVIDIA boost, yet the NVIDIA part still achieves far higher throughput because it has 2048 shading units versus 256, 64 texture mapping units versus 16, and 32 ROPs versus 8. The NVIDIA GPU also operates at a 35 W TDP, while the AMD IGP is rated at 15 W.

Architecture Differences

The two GPUs come from completely different architectural lineages. The AMD Radeon 840M uses the RDNA 3.5 architecture on a 4 nm TSMC process node, part of the Krackan Point chip. It belongs to the Navi III IGP generation for Strix Point Mobile. The NVIDIA RTX 500 Mobile Ada Generation uses the Ada Lovelace architecture on a 5 nm TSMC process, built around the AD107 chip. The AMD part's predecessor is the Navi II IGP, while the NVIDIA part succeeds the Ampere-MW generation and has the Blackwell-MW as its successor.

The transistor budgets differ enormously. The NVIDIA AD107 chip packs 18,900 million transistors into a 159 mm² die, giving it a transistor density of 118.9 million transistors per square millimeter. The AMD Radeon 840M's transistor count and die size are listed as unknown in the database, so no direct density comparison is possible. The process node advantage goes to AMD at 4 nm versus 5 nm for NVIDIA, but the NVIDIA chip uses that larger process to integrate substantially more compute hardware.

Shader resources show a clear hierarchy. The NVIDIA RTX 500 Mobile has 2048 shading units, 64 TMUs, and 32 ROPs. The AMD Radeon 840M has 256 shading units, 16 TMUs, and 8 ROPs. That is an 8-to-1 ratio in shading units, 4-to-1 in TMUs, and 4-to-1 in ROPs. The NVIDIA part also carries 16 RT cores and 64 tensor cores, while the AMD IGP has 4 RT cores and no tensor cores listed in the database.

Memory architecture diverges completely. The AMD Radeon 840M uses system-shared memory with a system-dependent bus width and bandwidth. The NVIDIA RTX 500 Mobile has 4 GB of GDDR6 on a 64-bit bus with a fixed 128.0 GB/s bandwidth. The NVIDIA part's memory runs at 2000 MHz with 16 Gbps effective transfer rate. The AMD IGP has no dedicated memory clock because it relies on the host system's RAM.

API support is identical across both parts. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The AMD Radeon 840M supports PCIe 4.0 x8, and the NVIDIA RTX 500 Mobile also uses PCIe 4.0 x8. Both are listed as IGP slot width with no power connectors, and both have display outputs dependent on the portable device.

The release dates differ by about a year. The NVIDIA RTX 500 Mobile Ada Generation was released on February 25, 2024. The AMD Radeon 840M came later, on February 28, 2025. Both parts are currently marked as Active in production status.

Where Each One Wins

The AMD Radeon 840M wins in power efficiency and integration. Its 15 W TDP is less than half of the NVIDIA part's 35 W TDP. For thin-and-light laptops where battery life and thermal headroom are constrained, the AMD IGP draws significantly less power while still providing modern API support including DirectX 12 Ultimate and Vulkan 1.4. Its 4 nm process node is more advanced than the NVIDIA part's 5 nm node, which contributes to the lower power envelope. The AMD part also boosts to 2900 MHz, which is 875 MHz higher than the NVIDIA boost clock, indicating a design tuned for bursty workloads within a tight power budget.

The NVIDIA RTX 500 Mobile Ada Generation wins in raw performance across every measured throughput metric. Its FP32 compute of 8.294 TFLOPS dwarfs the AMD part's 1,484.8 GFLOPS. The texture rate of 129.6 GTexel/s versus 46.40 GTexel/s and pixel rate of 64.80 GPixel/s versus 23.20 GPixel/s both favor NVIDIA by nearly a factor of three. The dedicated 4 GB of GDDR6 memory with 128.0 GB/s bandwidth removes any dependency on system memory configuration, which is a reliability advantage for consistent performance across different laptops.

The NVIDIA part also has more specialized hardware. Its 64 tensor cores provide AI acceleration capabilities that the AMD Radeon 840M lacks entirely, as the AMD part has no tensor cores listed in the database. The NVIDIA GPU's 16 RT cores versus 4 on the AMD side indicates a larger ray tracing workload capacity, though both support the same DirectX 12 Ultimate feature set.

For gaming at lower resolutions and settings, the NVIDIA RTX 500 Mobile's 2048 shading units and dedicated memory should handle more demanding scenes. The AMD Radeon 840M, with 256 shading units and system-shared memory, is better suited to lighter workloads and integrated graphics duties. The NVIDIA part's 35 W TDP suggests it is intended for laptops with more substantial cooling solutions, while the AMD IGP at 15 W fits into fanless or low-power designs.

The Verdict

The data indicates that the NVIDIA RTX 500 Mobile Ada Generation is the stronger performer by a wide margin in compute-heavy and graphics-intensive tasks. Its 8.294 TFLOPS FP32 throughput, 2048 shading units, 64 tensor cores, and dedicated 4 GB GDDR6 with 128.0 GB/s bandwidth give it clear advantages in 3D rendering, AI-accelerated workloads, and any application that benefits from consistent memory bandwidth. The AMD Radeon 840M cannot match these figures, and the performance gap is too large to overcome through its higher boost clock alone.

The AMD Radeon 840M is the appropriate choice for systems where power consumption is the primary constraint. Its 15 W TDP, compared to the NVIDIA part's 35 W, makes it suitable for ultra-portable devices that prioritize battery life over peak performance. The 4 nm process node and integrated design mean no additional space is needed for discrete memory modules. For basic graphics acceleration, media playback, and light productivity tasks, the AMD IGP provides modern API support at a fraction of the power draw.

The release timing favors the NVIDIA part in terms of maturity. The RTX 500 Mobile Ada Generation has been available since February 2024, giving it more time in the market. The AMD Radeon 840M launched in February 2025, a year later. Both are active products, so neither is obsolete.

The transistor count difference is stark: 18,900 million for the AD107 chip versus an unknown figure for the AMD IGP. The NVIDIA chip's 159 mm² die size and 118.9M / mm² transistor density show a physically larger, more complex silicon implementation. The AMD part's unknown die size prevents a direct comparison, but the shading unit count of 256 versus 2048 suggests a much smaller compute core.

For users who need dedicated graphics performance in a mobile form factor, the NVIDIA RTX 500 Mobile Ada Generation is the clear pick based on the recorded data. For users who need an integrated GPU that sips power and handles standard workloads, the AMD Radeon 840M fulfills that role. The 50th percentile ranking for both GPUs in the database indicates they sit in the middle of the overall performance distribution, but within that tier, the NVIDIA part has substantially more compute resources.

The NVIDIA RTX 500 Mobile also offers future-proofing through its 64 tensor cores, which enable features that rely on AI acceleration. The AMD Radeon 840M has no tensor cores, so any AI-focused workload would fall back to the shader units, which are already outmatched. The 16 RT cores versus 4 also suggests better ray tracing performance, though both support the same DirectX 12 Ultimate API.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA RTX 500 Mobile Ada Generation delivers 8.294 TFLOPS of FP32 compute, compared to the AMD Radeon 840M's 1,484.8 GFLOPS. The NVIDIA part has approximately 5.6 times the FP32 throughput.

Q: How much memory does each GPU have?

A: The NVIDIA RTX 500 Mobile Ada Generation has 4 GB of GDDR6 memory on a 64-bit bus with 128.0 GB/s bandwidth. The AMD Radeon 840M uses system-shared memory with size, type, and bus width all marked as system shared, and bandwidth listed as system dependent.

Q: What are the power consumption ratings?

A: The AMD Radeon 840M has a 15 W TDP, while the NVIDIA RTX 500 Mobile Ada Generation has a 35 W TDP. The AMD part draws less than half the power of the NVIDIA part.

Q: Do both GPUs support the same graphics APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. They also both use PCIe 4.0 x8 bus interfaces.

Q: Which GPU has more shading units and ray tracing cores?

A: The NVIDIA RTX 500 Mobile Ada Generation has 2048 shading units and 16 RT cores. The AMD Radeon 840M has 256 shading units and 4 RT cores. The NVIDIA part also has 64 tensor cores, while the AMD part has no tensor cores listed.

Q: What are the process nodes and release dates?

A: The AMD Radeon 840M uses a 4 nm TSMC process and was released on February 28, 2025. The NVIDIA RTX 500 Mobile Ada Generation uses a 5 nm TSMC process and was released on February 25, 2024. The AMD part is a year newer and uses a smaller process node.