NVIDIA GeForce RTX 5070 Mobile 12 GB vs NVIDIA RTX A400 Comparison

The NVIDIA GeForce RTX 5070 Mobile 12 GB and the NVIDIA RTX A400 occupy opposite ends of the GPU spectrum, one a modern high-end mobile part, the other a compact workstation card. The recorded data shows a stark divide in raw compute potential, memory capacity, and architectural generation, yet both share a remarkably low 50 W TDP. This analysis relies strictly on the database entries for both parts.

Head-to-Head Benchmarks

Direct benchmark comparisons between the two are not recorded in the database, as the RTX 5070 Mobile has no benchmark entries. However, the RTX A400’s measured scores and the RTX 5070 Mobile’s theoretical specifications allow for a clear projection of the performance gap.

The RTX A400 delivers a Geekbench OpenCL score of 22844 and a Geekbench Vulkan score of 22237. Its Passmark G3D score sits at 5983, with a GPU compute score of 2557. These numbers place the A400 at the 35th percentile of all GPUs, with an average benchmark score of 6078. Its nearest rivals include the NVIDIA GeForce MX230, which scores 6077 (a 0% delta), and the NVIDIA Quadro P2000, which scores 6049 (a 0.5% delta). The Intel Iris Pro Graphics 6200 scores 6117, putting the A400 0.6% behind, while the AMD Radeon 760M scores 6019, putting the A400 1% ahead. The A400 is essentially a peer of these low-end parts.

The RTX 5070 Mobile, by contrast, is built on the GB206 chip with a 5 nm TSMC process and packs 21,900 million transistors on a 181 mm² die. Its FP32 compute is rated at 13.13 TFLOPS, which is a massive leap over the A400’s 2.706 TFLOPS. In raw compute, the RTX 5070 Mobile is roughly 4.85 times faster, a delta that no benchmark score from the A400 can offset. The RTX 5070 Mobile’s texture rate is 205.2 GTexel/s versus the A400’s 42.29 GTexel/s, and its pixel rate is 68.40 GPixel/s versus 28.19 GPixel/s.

Memory bandwidth tells a similar story. The RTX 5070 Mobile uses 12 GB of GDDR7 on a 192-bit bus, achieving 576.0 GB/s. The A400 uses 4 GB of GDDR6 on a 64-bit bus, yielding 96.00 GB/s. This sixfold difference in bandwidth directly impacts any memory-bound workload, from high-resolution textures to large compute buffers. The RTX 5070 Mobile also has 4608 shading units, 144 TMUs, and 48 ROPs, versus the A400’s 768 shading units, 24 TMUs, and 16 ROPs.

The RTX 5070 Mobile’s FP16 performance is also 13.13 TFLOPS (1:1), matching its FP32 rate, while the A400’s FP16 is 2.706 TFLOPS (1:1). This means the RTX 5070 Mobile does not sacrifice half-precision throughput, making it viable for AI inference workloads that rely on FP16. The A400’s tensor cores number 24, while the RTX 5070 Mobile has 144, a sixfold increase that likely translates to significantly faster matrix operations.

The Verdict

The data points to a clear split in purpose. The RTX 5070 Mobile is a high-performance part aimed at gaming and content creation, with a 50th percentile ranking among all GPUs. The A400, at the 35th percentile, is a low-profile workstation card designed for basic visualization and multi-display setups. Benchmark results indicate the A400 is competitive only with entry-level parts like the MX230 and Quadro P2000, all within a 1% performance band.

For users who need heavy compute, high frame rates, or large memory pools, the RTX 5070 Mobile is the obvious choice based on its specifications alone. Its 13.13 TFLOPS FP32 and 576.0 GB/s bandwidth outclass the A400 in every measurable way. The A400, however, offers a single-slot form factor and 4x mini-DisplayPort 1.4a outputs, which the RTX 5070 Mobile lacks entirely, as its display outputs are portable device dependent.

The RTX 5070 Mobile is an integrated graphics processor (IGP), meaning it is soldered to a motherboard and not a standalone card. The A400 is a discrete card, 163 mm long and 69 mm high, with a suggested PSU of 250 W. Neither part has a launch MSRP in the database, so no pricing analysis is possible. The verdict is straightforward: the RTX 5070 Mobile is for raw performance, the A400 for compact workstation duties.

Architecture Differences

The two GPUs come from different architectural generations. The RTX 5070 Mobile uses Blackwell 2.0, built on the GB206 chip, fabricated on a 5 nm process by TSMC. The A400 uses Ampere, built on the GA107 chip, fabricated on an 8 nm process by Samsung. This process difference is significant: the RTX 5070 Mobile’s transistor density is 121.0M per mm², while the A400’s is 43.5M per mm². The RTX 5070 Mobile packs 21,900 million transistors into 181 mm², whereas the A400 has 8,700 million transistors on a 200 mm² die.

The RTX 5070 Mobile belongs to the GeForce 50 Mobile generation, succeeding the GeForce 40 Mobile. The A400 is part of the Workstation Ampere (Ax000) generation, succeeding Quadro Turing and being succeeded by Workstation Ada. The RTX 5070 Mobile has 36 RT cores and 144 tensor cores, while the A400 has 6 RT cores and 24 tensor cores. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API feature parity exists.

Memory technology differs as well. The RTX 5070 Mobile uses GDDR7 with a 192-bit bus, while the A400 uses GDDR6 with a 64-bit bus. The RTX 5070 Mobile’s memory clock is 1500 MHz with 24 Gbps effective speed, while the A400’s is 1500 MHz with 12 Gbps effective. The RTX 5070 Mobile has a base clock of 907 MHz and a boost of 1425 MHz, while the A400 has a higher base of 1417 MHz and a boost of 1762 MHz. Despite lower clocks, the RTX 5070 Mobile’s massive core count and wider memory bus deliver far higher throughput.

The bus interface also differs: the RTX 5070 Mobile uses PCIe 5.0 x16, while the A400 uses PCIe 4.0 x8. This gives the RTX 5070 Mobile more host bandwidth for data transfer, which matters for compute tasks that stream data from system memory. The RTX 5070 Mobile has no power connectors and is an IGP, while the A400 is a single-slot card with no power connectors but a 250 W suggested PSU.

FAQ

Q: Which GPU has higher raw compute power?

A: The RTX 5070 Mobile, with 13.13 TFLOPS FP32, is approximately 4.85 times higher than the A400’s 2.706 TFLOPS FP32.

Q: How does the memory bandwidth compare?

A: The RTX 5070 Mobile offers 576.0 GB/s over a 192-bit GDDR7 interface, while the A400 offers 96.00 GB/s over a 64-bit GDDR6 interface, a sixfold difference.

Q: What is the form factor difference?

A: The RTX 5070 Mobile is an IGP with no slot width, while the A400 is a single-slot card measuring 163 mm by 69 mm with 4x mini-DisplayPort 1.4a outputs.

Q: Do both support the same API versions?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: How does the A400 rank against its nearest rivals?

A: The A400’s average benchmark score of 6078 is within 1% of the GeForce MX230, Quadro P2000, Iris Pro Graphics 6200, and Radeon 760M, placing it at the 35th percentile of all GPUs.

Q: Which has more tensor cores for AI work?

A: The RTX 5070 Mobile has 144 tensor cores, while the A400 has 24, a sixfold difference.

Where Each One Wins

The RTX 5070 Mobile wins decisively in any scenario that demands high throughput. Its 13.13 TFLOPS FP32 and FP16 performance makes it suitable for large-scale compute, machine learning inference, and high-resolution gaming. The 12 GB GDDR7 memory with 576.0 GB/s bandwidth supports large textures, complex scenes, and multi-tasking between GPU-accelerated applications. The 144 tensor cores and 36 RT cores provide hardware acceleration for AI-based features and ray tracing, which the A400’s 6 RT cores and 24 tensor cores cannot match. The PCIe 5.0 x16 interface also ensures faster host communication for data-heavy workloads.

The A400 wins in deployment flexibility and display connectivity. Its single-slot design and 163 mm length allow installation in compact chassis where an IGP is not an option. The 4x mini-DisplayPort 1.4a outputs support multi-monitor professional setups, which the RTX 5070 Mobile cannot do, as its display outputs are portable device dependent. The A400’s higher base and boost clocks (1417 MHz and 1762 MHz) suggest better per-core efficiency, but its 768 shading units limit total output. For basic 2D visualization, low-resolution rendering, or driving multiple displays in a workstation, the A400 is the practical choice.

The RTX 5070 Mobile is also the choice for forward-looking workloads. Its 5 nm process node and Blackwell 2.0 architecture are newer than the 8 nm Ampere design. The RTX 5070 Mobile’s 50th percentile ranking indicates it is a mid-range part in the database, while the A400’s 35th percentile places it below average. For users who need a laptop GPU with strong compute, the RTX 5070 Mobile is superior. For users who need a low-profile desktop card with multiple display outputs, the A400 is the only option that fits the bill.

Specification Differences

The two GPUs differ across nearly every specification in the database. The RTX 5070 Mobile uses the GB206 chip on Blackwell 2.0, while the A400 uses the GA107 chip on Ampere. The process nodes differ: 5 nm TSMC for the RTX 5070 Mobile versus 8 nm Samsung for the A400. Transistor counts are 21,900 million versus 8,700 million, with die sizes of 181 mm² versus 200 mm² and densities of 121.0M per mm² versus 43.5M per mm².

Clock speeds differ: the RTX 5070 Mobile has a base of 907 MHz and boost of 1425 MHz, while the A400 has a base of 1417 MHz and boost of 1762 MHz. Memory configurations are markedly different: 12 GB GDDR7 on a 192-bit bus with 576.0 GB/s bandwidth for the RTX 5070 Mobile, versus 4 GB GDDR6 on a 64-bit bus with 96.00 GB/s for the A400. The effective memory speed is 24 Gbps versus 12 Gbps.

Core counts diverge sharply: 4608 shading units, 144 TMUs, 48 ROPs, 36 RT cores, and 144 tensor cores for the RTX 5070 Mobile, versus 768 shading units, 24 TMUs, 16 ROPs, 6 RT cores, and 24 tensor cores for the A400. Pixel rates are 68.40 GPixel/s versus 28.19 GPixel/s, and texture rates are 205.2 GTexel/s versus 42.29 GTexel/s. FP32 and FP16 performance are 13.13 TFLOPS versus 2.706 TFLOPS, both at 1:1 ratios.

Physical and interface specs also differ. The RTX 5070 Mobile is an IGP with no slot width, power connectors, or display outputs listed, and uses PCIe 5.0 x16. The A400 is a single-slot card with no power connectors, a 250 W suggested PSU, and uses PCIe 4.0 x8. The A400 has dimensions of 163 mm by 69 mm and outputs 4x mini-DisplayPort 1.4a. The RTX 5070 Mobile has a release date of May 2026, while the A400 was released in April 2024. The RTX 5070 Mobile’s predecessor is GeForce 40 Mobile, while the A400’s predecessor is Quadro Turing and its successor is Workstation Ada. Both have a 50 W TDP and are marked as Active in production.