AMD Radeon 840M vs NVIDIA RTX 2000 Mobile Ada Generation Comparison

The Verdict

The data places the AMD Radeon 840M and the NVIDIA RTX 2000 Mobile Ada Generation in the same percentile band (50th percentile for both). However, the recorded specifications reveal two very different design philosophies for mobile graphics. The RTX 2000 Mobile Ada is a discrete-class part with dedicated memory and a much larger execution engine, while the Radeon 840M is an integrated graphics processor sharing system resources. For workloads that demand sustained rendering, ray tracing, or high-bandwidth memory access, the NVIDIA part holds a clear theoretical advantage based on its raw throughput figures. For low-power, thin-and-light portable devices where energy efficiency is the primary constraint, the AMD IGP fits a different usage envelope. The data shows one part is not a substitute for the other; they serve distinct market segments. Users who need professional-grade mobile rendering capabilities should look to the RTX 2000 Mobile Ada, while those prioritizing minimal power draw in an integrated solution would find the Radeon 840M suitable.

Architecture Differences

The Radeon 840M uses the RDNA 3.5 architecture, built on a 4 nm process at TSMC. Its chip is designated Krackan Point, part of the Navi III IGP generation. The RTX 2000 Mobile Ada uses the Ada Lovelace architecture, built on a 5 nm process at TSMC, with the AD107 chip and 18,900 million transistors on a 159 mm² die. This gives the NVIDIA part a transistor density of 118.9M per mm². The Radeon 840M's transistor count and die size are listed as unknown in the database.

The execution resources differ substantially. The Radeon 840M has 256 shading units, 16 texture mapping units, 8 raster output units, and 4 ray tracing cores. The RTX 2000 Mobile Ada has 3,072 shading units, 96 TMUs, 48 ROPs, 24 RT cores, and 96 tensor cores. The NVIDIA part also carries dedicated GDDR6 memory: 8 GB on a 128-bit bus with 256.0 GB/s bandwidth. The AMD IGP uses system shared memory, with bandwidth listed as system dependent.

Both parts support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Radeon 840M uses a PCIe 4.0 x8 interface, while the RTX 2000 Mobile Ada uses PCIe 4.0 x16. The AMD part has a base clock of 400 MHz and boost clock of 2900 MHz. The NVIDIA part has a base clock of 1635 MHz and boost clock of 2115 MHz, with memory running at 2000 MHz (16 Gbps effective).

Where Each One Wins

The RTX 2000 Mobile Ada wins on raw compute throughput. Its FP32 performance is 12.99 TFLOPS, which is roughly 8.75 times the Radeon 840M's 1,484.8 GFLOPS. The pixel rate is 101.5 GPixel/s versus 23.20 GPixel/s, a 4.37 times advantage. The texture rate is 203.0 GTexel/s versus 46.40 GTexel/s, a 4.37 times advantage. The RTX 2000 Mobile Ada also has 24 RT cores versus 4, and 96 tensor cores versus none on the AMD part.

The Radeon 840M wins on power efficiency. Its TDP is 15 W, compared to 50 W for the NVIDIA part. This means the AMD IGP draws one third the power of its rival. The Radeon 840M also has a higher boost clock relative to its power envelope: 2900 MHz at 15 W, versus 2115 MHz at 50 W. The AMD part's memory clock is system shared, meaning it does not carry dedicated VRAM power overhead. The Radeon 840M uses a smaller PCIe interface (x8 versus x16), which can reduce system-level power consumption in some configurations.

For applications that rely on dedicated graphics memory, the RTX 2000 Mobile Ada wins decisively. The 8 GB GDDR6 with 256.0 GB/s bandwidth is a fixed resource, whereas the Radeon 840M depends on system memory performance, which varies by platform. For workloads involving ray tracing, the NVIDIA part has 6 times the RT cores. For AI-accelerated tasks, the tensor cores on the NVIDIA part provide a capability the AMD IGP lacks entirely.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA RTX 2000 Mobile Ada Generation delivers 12.99 TFLOPS, while the AMD Radeon 840M delivers 1,484.8 GFLOPS. This makes the NVIDIA part approximately 8.75 times faster in single-precision floating-point workloads.

Q: How do the power requirements compare?

A: The AMD Radeon 840M has a TDP of 15 W, while the NVIDIA RTX 2000 Mobile Ada has a TDP of 50 W. The AMD part consumes one third 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. Neither has a listed advantage in API compatibility.

Q: What type of memory does each GPU use?

A: The AMD Radeon 840M uses system shared memory with system dependent bandwidth. The NVIDIA RTX 2000 Mobile Ada uses 8 GB of GDDR6 on a 128-bit bus with 256.0 GB/s bandwidth.

Q: Which GPU has more ray tracing cores?

A: The NVIDIA RTX 2000 Mobile Ada has 24 RT cores. The AMD Radeon 840M has 4 RT cores.

Q: What is the process node for each chip?

A: The AMD Radeon 840M uses a 4 nm process at TSMC. The NVIDIA RTX 2000 Mobile Ada uses a 5 nm process at TSMC.

Head-to-Head Benchmarks

The database records no head-to-head benchmark scores for these two parts. Both have an average benchmark score of 0 and an empty benchmarks array. However, the recorded specifications allow for direct quantitative comparisons across several key metrics.

The largest win for the NVIDIA RTX 2000 Mobile Ada is in FP32 throughput. The NVIDIA part achieves 12.99 TFLOPS, which is 8.75 times the 1,484.8 GFLOPS of the AMD Radeon 840M. This gap is consistent across texture and pixel rates. The NVIDIA part's texture rate of 203.0 GTexel/s is 4.37 times the AMD's 46.40 GTexel/s. The pixel rate of 101.5 GPixel/s is 4.37 times the AMD's 23.20 GPixel/s. These ratios reflect the NVIDIA part's larger execution engine: 3,072 shading units versus 256, 96 TMUs versus 16, and 48 ROPs versus 8.

The memory bandwidth differential is also significant. The RTX 2000 Mobile Ada has a fixed 256.0 GB/s from its GDDR6 configuration. The Radeon 840M's bandwidth is listed as system dependent, meaning it cannot be directly compared as a fixed number. This gives the NVIDIA part a deterministic memory performance characteristic that the AMD IGP lacks.

The RTX 2000 Mobile Ada also wins on ray tracing and tensor core counts. It has 24 RT cores and 96 tensor cores, while the Radeon 840M has 4 RT cores and no tensor cores. This represents a 6 times advantage in RT cores and an exclusive capability in tensor-based workloads.

The Radeon 840M wins on clock speed relative to power. Its boost clock is 2900 MHz at 15 W, which is 785 MHz higher than the NVIDIA part's 2115 MHz boost clock at 50 W. The AMD part also has a much lower base clock at 400 MHz versus 1635 MHz, indicating a wider dynamic range for power management.

The manufacturing process favors the AMD part. The 4 nm node is smaller than the 5 nm node used by NVIDIA. The AMD part's die size is unknown, but the NVIDIA part is 159 mm² with 18,900 million transistors. This gives the NVIDIA part a density of 118.9M transistors per mm².

The release dates differ by nearly two years. The RTX 2000 Mobile Ada was released on 2023-03-20, while the Radeon 840M was released on 2025-02-28. The NVIDIA part's predecessor is Ampere-MW and its successor is Blackwell-MW. The AMD part's predecessor is Navi II IGP, with no successor listed.

Specification Differences

The two GPUs differ in every major specification category except for API support, slot width, power connectors, and display outputs.

Process and die: The AMD Radeon 840M uses a 4 nm process. The NVIDIA RTX 2000 Mobile Ada uses a 5 nm process. The NVIDIA part has a die size of 159 mm² and 18,900 million transistors. The AMD part's die size and transistor count are unknown.

Clock speeds: The AMD Radeon 840M has a base clock of 400 MHz and a boost clock of 2900 MHz. The NVIDIA RTX 2000 Mobile Ada has a base clock of 1635 MHz and a boost clock of 2115 MHz.

Memory: The AMD Radeon 840M uses system shared memory with system dependent bandwidth. The NVIDIA RTX 2000 Mobile Ada has 8 GB of GDDR6 on a 128-bit bus with 256.0 GB/s bandwidth and a memory clock of 2000 MHz (16 Gbps effective).

Execution units: The AMD Radeon 840M has 256 shading units, 16 TMUs, 8 ROPs, 4 RT cores, and no tensor cores. The NVIDIA RTX 2000 Mobile Ada has 3,072 shading units, 96 TMUs, 48 ROPs, 24 RT cores, and 96 tensor cores.

Performance rates: The AMD Radeon 840M has a pixel rate of 23.20 GPixel/s, a texture rate of 46.40 GTexel/s, and FP32 performance of 1,484.8 GFLOPS. The NVIDIA RTX 2000 Mobile Ada has a pixel rate of 101.5 GPixel/s, a texture rate of 203.0 GTexel/s, and FP32 performance of 12.99 TFLOPS. Both have FP16 performance at a 1:1 ratio with FP32.

Power: The AMD Radeon 840M has a TDP of 15 W. The NVIDIA RTX 2000 Mobile Ada has a TDP of 50 W. Neither has a suggested PSU, and both use no power connectors.

Bus interface: The AMD Radeon 840M uses PCIe 4.0 x8. The NVIDIA RTX 2000 Mobile Ada uses PCIe 4.0 x16.

Release and lineage: The AMD Radeon 840M was released on 2025-02-28 in the Navi III IGP generation, with a predecessor of Navi II IGP. The NVIDIA RTX 2000 Mobile Ada was released on 2023-03-20 in the Ada-MW generation, with a predecessor of Ampere-MW and a successor of Blackwell-MW.

Shared specifications: Both parts are IGP slot width, have no power connectors, have portable device dependent display outputs, support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, and are currently in active production. Neither has a launch MSRP listed in the database.