AMD Radeon Vega 11 vs NVIDIA T400 Comparison

The NVIDIA T400 and AMD Radeon Vega 11 represent two distinct approaches to graphics processing: a dedicated low-profile workstation card and an integrated GPU. The benchmark data in the database shows a clear performance hierarchy, but the specific strengths of each part tell a more nuanced story for different use cases.

Head-to-Head Benchmarks

In the two recorded head-to-head tests, the NVIDIA T400 wins both rounds decisively. The most significant margin appears in the Geekbench Vulkan test, where the T400 scores 15,976 against the Vega 11's 12,273, a 30.2% advantage. This gap indicates that the T400 handles modern graphics APIs with substantially more efficiency, likely due to its dedicated memory and architecture optimizations.

The Geekbench OpenCL test shows a similar but slightly narrower lead. The T400 posts 17,039 points, while the Vega 11 manages 13,392, resulting in a 27.2% difference. This consistency across both compute APIs suggests the T400's advantage is not limited to a single workload type but reflects a fundamental performance edge in general-purpose GPU compute.

Looking at the broader database context, the T400's average benchmark score of 16,508 places it in the 60th percentile of all GPUs. Its nearest rivals in the database include the NVIDIA GeForce RTX 5090 D V2 at 16,504 (0% delta), the AMD Radeon PRO W7500 at 16,415 (0.6% behind), and the NVIDIA RTX PRO 6000 Blackwell at 16,408 (0.6% behind). This clustering shows the T400 sits in a competitive performance tier, essentially matching cards that are positioned much higher in their respective product stacks.

The Vega 11, by contrast, averages 14,352 points, placing it in the 56th percentile. Its nearest rivals are the NVIDIA GeForce GTX TITAN at 14,373 (0.1% ahead), the AMD Radeon RX Vega 11 at 14,385 (0.2% ahead), and the Intel Iris Xe MAX Graphics at 14,315 (0.3% behind). The Vega 11's performance is tightly grouped with older discrete GPUs, which is notable for an integrated solution.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA T400 has a significantly higher average score of 16,508 compared to the AMD Radeon Vega 11's 14,352, a difference of roughly 15%.

Q: How does the T400 perform in Vulkan workloads relative to the Vega 11?

A: The T400 scores 15,976 in Geekbench Vulkan, which is 30.2% higher than the Vega 11's 12,273, indicating a strong advantage in Vulkan-based applications.

Q: Is the Vega 11 competitive with any dedicated GPUs in the database?

A: Yes, the Vega 11's average score of 14,352 places it within 0.4% of the NVIDIA GeForce GTX 965M and 0.1% of the NVIDIA GeForce GTX TITAN, showing it trades blows with older discrete cards.

Q: What is the T400's performance percentile ranking?

A: The T400 sits in the 60th percentile of all GPUs in the database, while the Vega 11 sits in the 56th percentile, a modest but measurable gap in overall standing.

Q: Does the Vega 11 have any benchmark where it beats the T400?

A: No. In the two recorded head-to-head tests (OpenCL and Vulkan), the T400 wins both, with no wins recorded for the Vega 11.

Q: What memory configuration does each GPU use?

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

Architecture Differences

The two GPUs come from fundamentally different design philosophies. The NVIDIA T400 is built on the Turing architecture, using the TU117 chip manufactured by TSMC on a 12 nm process. The die measures 200 mm² and contains 4,700 million transistors, yielding a transistor density of 23.5 million per mm². The Vega 11 uses the GCN 5.0 architecture with the Picasso chip, fabricated by GlobalFoundries also on a 12 nm process. Its die is slightly larger at 210 mm², with 4,940 million transistors, resulting in the same transistor density of 23.5 million per mm².

The compute configurations diverge sharply. The T400 has 384 shading units, 24 texture mapping units, and 16 raster output units. The Vega 11 has 704 shading units, 44 TMUs, but only 8 ROPs. This means the Vega 11 has nearly double the shader count and TMUs, but half the ROPs. The pixel rate reflects this: the T400 achieves 22.80 GPixel/s against the Vega 11's 11.20 GPixel/s. Conversely, the texture rate favors the Vega 11 at 61.60 GTexel/s versus the T400's 34.20 GTexel/s.

Clock behavior also differs. The T400 has a base clock of 420 MHz and a boost clock of 1425 MHz. The Vega 11 has a lower base clock of 300 MHz but a slightly lower boost of 1400 MHz. The T400's memory runs at 1250 MHz with 10 Gbps effective speed, while the Vega 11 relies on system memory, which is variable and slower.

Neither GPU has dedicated ray tracing cores or tensor cores, so both rely on traditional rasterization and compute paths. The T400 supports Vulkan 1.4, while the Vega 11 supports Vulkan 1.3, a minor API version difference. Both support DirectX 12 (12_1) and OpenGL 4.6.

Specification Differences

The specification sheets for these two GPUs show several key differences beyond performance. The T400 is a discrete card with a 30 W TDP, while the Vega 11 is an integrated graphics processor with a 15 W TDP. The T400 is single-slot with no power connectors and a suggested PSU of 200 W, while the Vega 11 has no PSU suggestion since it is an IGP.

Memory is a major differentiator. The T400 has 2 GB of GDDR6 on a 64-bit bus with 80.00 GB/s bandwidth. The Vega 11 has system shared memory with system dependent bandwidth, meaning its performance scales with the host system's RAM speed and configuration.

The bus interface also differs. The T400 uses PCIe 3.0 x16, while the Vega 11 is an IGP with no separate bus interface. Display outputs are another point of contrast: the T400 offers 3x mini-DisplayPort 1.4a, while the Vega 11's outputs are motherboard dependent.

The FP32 performance favors the Vega 11 at 1.971 TFLOPS versus the T400's 1,094.4 GFLOPS. FP16 performance follows the same pattern: 3.942 TFLOPS for the Vega 11 versus 2.189 TFLOPS for the T400. Despite this raw compute advantage, the Vega 11 loses in the actual benchmark tests, likely due to memory bandwidth constraints and driver overhead.

The release dates differ by nearly two years. The T400 was released in May 2021, while the Vega 11 came out in September 2019. The T400's predecessor is Quadro Volta and its successor is Workstation Ampere. The Vega 11's predecessor is GCN 3.0 IGP and its successor is Vega II IGP.

The Verdict

The data supports a clear performance winner: the NVIDIA T400 outperforms the AMD Radeon Vega 11 in both recorded compute benchmarks. The T400 leads by 27.2% in OpenCL and 30.2% in Vulkan, and its average benchmark score is over 2,100 points higher. For anyone prioritizing raw GPU compute performance, the T400 is the superior option.

However, the Vega 11 has its own advantages that matter in specific contexts. It consumes half the power (15 W versus 30 W) and requires no additional hardware since it is integrated into the processor. The Vega 11 also has higher shader count and texture rate, which may translate to better performance in texture-heavy workloads that are not captured by the current benchmark suite.

The T400's nearest rivals in the database include the RTX 5090 D V2 and the RTX PRO 6000 Blackwell, which are far more expensive workstation cards. The fact that the T400 matches their average scores suggests it delivers exceptional performance relative to its position in the product stack. The Vega 11, by contrast, sits alongside older discrete GPUs like the GTX TITAN and GTX 965M, which is impressive for an integrated part but does not compete with the T400's tier.

Where Each One Wins

The NVIDIA T400 wins in scenarios that demand consistent, dedicated graphics performance. Its 2 GB of GDDR6 memory provides stable bandwidth, and its 64-bit bus is sufficient for its compute capabilities. The T400's Vulkan score of 15,976 indicates strong performance in modern APIs, making it suitable for applications that leverage Vulkan for rendering or compute. Its 30 W TDP means it can run in low-power systems, and its single-slot design with no power connectors simplifies installation. The T400's pixel rate of 22.80 GPixel/s is nearly double the Vega 11's, so it will handle rasterization-heavy workloads with better efficiency.

The AMD Radeon Vega 11 wins in scenarios where power consumption and system simplicity are paramount. As an integrated GPU, it adds zero additional cost or hardware complexity. Its 15 W TDP is half the T400's, making it ideal for ultra-low-power builds. The Vega 11's higher texture rate of 61.60 GTexel/s and FP32 throughput of 1.971 TFLOPS give it raw compute headroom, which could benefit certain compute tasks if memory bandwidth is not the bottleneck. Its FP16 performance of 3.942 TFLOPS is also notably higher than the T400's, which matters for applications that use reduced precision.

For gaming or general desktop use, the Vega 11 benefits from system shared memory, which can be larger than 2 GB, but the bandwidth will depend heavily on the host system's RAM. The T400's dedicated memory, while smaller, is faster and more predictable. The database shows no gaming-specific benchmarks, but the compute results suggest the T400 will provide a smoother experience in GPU-accelerated applications.

Ultimately, the choice depends on whether the user needs a dedicated, reliable GPU unit or an integrated solution that saves power and space. The T400 is the performance pick, while the Vega 11 is the efficiency and simplicity pick. Both are end-of-life products, so availability will vary, but the data clearly shows where each part excels.