AMD Radeon RX Vega 11 vs NVIDIA T400 Comparison

Head-to-Head Benchmarks

The recorded data shows a clear performance hierarchy between these two end-of-life graphics solutions. Across the two shared benchmark tests, the NVIDIA T400 secures victories in both instances, establishing a consistent lead over the AMD Radeon RX Vega 11. The most decisive margin appears in the Geekbench OpenCL workload, where the T400 scores 17,039 against the RX Vega 11's 12,525, a substantial 36% advantage. This result indicates that the NVIDIA solution handles general compute tasks with considerably more efficiency, likely attributable to its dedicated memory subsystem and more modern architecture.

In the Vulkan graphics API test, the gap narrows but remains firmly in NVIDIA's favor. The T400 produces a score of 15,976, while the AMD Radeon RX Vega 11 trails at 13,543, representing an 18% difference. This smaller delta suggests that the integrated Vega solution closes some of the gap when operating through a lower-level graphics API, though it still cannot match the discrete card's throughput. The average benchmark scores reinforce this pattern: the T400 averages 16,508 across all recorded tests, while the RX Vega 11 averages 14,385, a difference of roughly 2,123 points.

When placed against the broader database, the NVIDIA T400 sits at the 60th percentile among all GPUs, with its nearest rival being the NVIDIA GeForce RTX 5090 D V2 at an almost identical average score of 16,504 (0% delta). The T400 also edges out the AMD Radeon PRO W7500 by 0.6% and the NVIDIA RTX PRO 6000 Blackwell by the same margin. The AMD Radeon RX Vega 11, by contrast, occupies the 56th percentile, with its closest competitor being the NVIDIA GeForce GTX TITAN at 14,373 (0.1% difference). This places the two products roughly 4 percentile points apart, a meaningful but not enormous gap in the overall performance distribution.

Where Each One Wins

The NVIDIA T400 demonstrates superiority in every benchmark category where both products were measured. Its OpenCL score of 17,039 versus 12,525 gives it a commanding position for compute-oriented workloads, such as physics simulations, image processing, or any task that leverages general-purpose GPU computation. The 36% margin here is the single largest performance gap recorded in the head-to-head data, making this the clearest differentiator between the two.

The Vulkan results tell a slightly different story. While the T400 still wins with 15,976 against 13,543, the 18% advantage is half the size of the OpenCL gap. This suggests that the AMD Radeon RX Vega 11's architecture is relatively more competitive in graphics-focused workloads than in raw compute, possibly due to its higher shading unit count. The Vega 11 features 704 shading units against the T400's 384, which helps it remain closer in graphics-bound scenarios even though the T400's dedicated GDDR6 memory and higher clock speeds ultimately carry the day.

For users prioritizing compute performance, the T400 is the unequivocal choice based on the numbers. For those whose primary workload is gaming or graphics rendering through Vulkan, the RX Vega 11 still loses, but the narrower margin indicates it is less disadvantaged in that specific context. It is notably the AMD product also has a Metal benchmark score of 17,086 recorded in the database, which exceeds any single score the T400 has posted, though no direct head-to-head comparison exists for that API since the NVIDIA card lacks a Metal result.

Architecture Differences

The two products represent fundamentally different design philosophies. The NVIDIA T400 is built on the Turing architecture using the TU117 chip, manufactured on a 12 nm process at TSMC. It packs 4,700 million transistors into a 200 mm² die, yielding a transistor density of 23.5 million per square millimeter. The AMD Radeon RX Vega 11 uses the GCN 5.0 architecture with the Picasso chip, also on a 12 nm process but fabricated by GlobalFoundries. Its transistor count is slightly higher at 4,940 million, spread across a 210 mm² die, resulting in the same 23.5M / mm² density figure.

Memory configuration is where the divergence becomes stark. The T400 features 2 GB of dedicated GDDR6 memory on a 64-bit bus, delivering 80.00 GB/s of bandwidth. The RX Vega 11, as an integrated graphics processor (IGP), relies entirely on system shared memory, with bandwidth described as "System Dependent" and bus width listed as "System Shared." This fundamental difference explains much of the performance gap: dedicated memory with fixed bandwidth provides consistent performance, while shared memory performance varies based on the host system's RAM configuration.

The compute unit layouts also differ considerably. The T400 has 384 shading units, 24 texture mapping units, and 16 render output units, producing a pixel rate of 22.80 GPixel/s and a texture rate of 34.20 GTexel/s. The RX Vega 11 counters with 704 shading units, 44 TMUs, but only 8 ROPs, resulting in a lower pixel rate of 11.20 GPixel/s but a higher texture rate of 61.60 GTexel/s. This explains the Vulkan results: the Vega 11's superior texture throughput helps it in graphics-heavy tasks, while the T400's higher pixel rate and memory bandwidth benefit compute workloads.

Clock behavior also differs. The T400 runs at a 420 MHz base clock and boosts to 1425 MHz, while its memory operates at 1250 MHz with 10 Gbps effective transfer. The RX Vega 11 has a lower 300 MHz base but a similar 1400 MHz boost. Power consumption reflects their respective form factors: the T400 draws 30 W as a single-slot card requiring no power connectors and a 200 W suggested PSU, while the RX Vega 11 is an IGP drawing 15 W with no separate power requirements.

The Verdict

Based strictly on the recorded benchmark data, the NVIDIA T400 is the superior performer in every measured category. Its 36% OpenCL advantage and 18% Vulkan advantage over the AMD Radeon RX Vega 11 make it the clear choice for any workload that appears in the database. The T400's 60th percentile ranking versus the Vega 11's 56th percentile further confirms this positioning, as does its average score of 16,508 compared to 14,385.

Users who require consistent, predictable graphics performance from a dedicated card should select the T400. Its fixed 80.00 GB/s bandwidth and 2 GB GDDR6 memory ensure stable performance regardless of the host system's memory configuration. The RX Vega 11's reliance on shared system memory introduces variability that the data cannot fully capture, as its bandwidth is listed as system dependent.

Conversely, the AMD Radeon RX Vega 11 may be the only option in systems where a discrete card is not feasible. As an IGP, it requires no physical slot, draws only 15 W, and occupies no expansion space. Its higher shading unit count (704 versus 384) and texture rate (61.60 GTexel/s versus 34.20 GTexel/s) provide some theoretical advantages in specific graphics scenarios, even if the measured benchmarks show it losing overall. For users building compact systems where power efficiency and space are paramount, the Vega 11's integrated nature is its primary selling point.

The production status of both products is end-of-life, and the T400's release date of May 2021 places it nearly two years after the Vega 11's July 2019 launch. Neither product represents current technology, but the T400's Turing architecture and dedicated memory make it the more capable performer in the recorded tests.

FAQ

Q: Which GPU wins in OpenCL performance?

A: The NVIDIA T400 wins decisively, scoring 17,039 against the AMD Radeon RX Vega 11's 12,525, a 36% advantage.

Q: How large is the Vulkan performance gap?

A: The T400 leads with 15,976 points versus 13,543 for the RX Vega 11, an 18% difference.

Q: What are the average benchmark scores for each product?

A: The T400 averages 16,508 across all recorded tests, while the RX Vega 11 averages 14,385.

Q: Does the RX Vega 11 have any winning benchmark in the head-to-head data?

A: No. The head-to-head results list two wins for the T400 and zero wins for the RX Vega 11.

Q: How do their memory configurations differ?

A: The T400 uses 2 GB of dedicated GDDR6 memory on a 64-bit bus with 80.00 GB/s bandwidth. The RX Vega 11 uses system shared memory with bandwidth dependent on the host system.

Q: What are their respective percentile rankings?

A: The T400 sits at the 60th percentile among all GPUs, while the RX Vega 11 ranks at the 56th percentile.

Specification Differences

| Specification | NVIDIA T400 | AMD Radeon RX Vega 11 |

|---|---|---|

| Architecture | Turing | GCN 5.0 |

| Chip | TU117 | Picasso |

| Process Node | 12 nm (TSMC) | 12 nm (GlobalFoundries) |

| Transistors | 4,700 million | 4,940 million |

| Die Size | 200 mm² | 210 mm² |

| Base Clock | 420 MHz | 300 MHz |

| Boost Clock | 1425 MHz | 1400 MHz |

| Memory Size | 2 GB | System Shared |

| Memory Type | GDDR6 | System Shared |

| Memory Bus Width | 64 bit | System Shared |

| Memory Bandwidth | 80.00 GB/s | System Dependent |

| Shading Units | 384 | 704 |

| TMUs | 24 | 44 |

| ROPs | 16 | 8 |

| Pixel Rate | 22.80 GPixel/s | 11.20 GPixel/s |

| Texture Rate | 34.20 GTexel/s | 61.60 GTexel/s |

| FP32 Performance | 1,094.4 GFLOPS | 1.971 TFLOPS |

| FP16 Performance | 2.189 TFLOPS (2:1) | 3.942 TFLOPS (2:1) |

| TDP | 30 W | 15 W |

| Slot Width | Single-slot | IGP |

| Power Connectors | None | None |

| Bus Interface | PCIe 3.0 x16 | IGP |

| Display Outputs | 3x mini-DisplayPort 1.4a | Motherboard Dependent |

| Vulkan Version | 1.4 | 1.3 |

| Release Date | 2021-05-05 | 2019-07-06 |