NVIDIA T400 4 GB vs NVIDIA TITAN Xp Comparison

Head-to-Head Benchmarks

The recorded data for these two GPUs shows a decisive advantage for the NVIDIA TITAN Xp in every measurable compute workload. The head-to-head comparison includes only two shared benchmark tests, both of which are won by the TITAN Xp by a substantial margin.

In the Geekbench OpenCL test, the TITAN Xp scores 72,585 points against the T400's 17,320 points. This represents a 319.1% advantage for the older Pascal-based card. The gap is even larger in the Geekbench Vulkan test, where the TITAN Xp achieves 87,180 points while the T400 manages only 16,263 points, a delta of 436.1%. These results indicate that the TITAN Xp delivers more than four times the raw compute throughput in the Vulkan API, and more than three times the throughput in OpenCL.

The TITAN Xp also holds a strong position in the broader benchmark database. Its average benchmark score of 19,177 places it in the 64th percentile of all GPUs tracked. Its closest rivals based on average score are the NVIDIA GeForce GTX 780 at 19,164 (a 0.1% delta), the NVIDIA Tesla K20m at 19,089 (0.5% delta), the NVIDIA GeForce RTX 4050 Mobile at 19,049 (0.7% delta), and the AMD Radeon RX 6600 at 19,036 (0.7% delta). These are all within a single percentage point, suggesting the TITAN Xp sits in a tightly contested performance tier despite its age.

The T400 4 GB, by contrast, has an average benchmark score of 16,792 and sits in the 60th percentile of all GPUs. Its nearest rivals include the AMD Radeon RX 7600S at 16,696 (0.6% delta), the NVIDIA Tesla M4 at 16,932 (-0.8% delta), the AMD Radeon HD 7970M at 17,019 (-1.3% delta), and the NVIDIA GeForce GTX 690 at 17,037 (-1.4% delta). The negative deltas for the Tesla M4, HD 7970M, and GTX 690 indicate that those cards score slightly higher than the T400, though all are within a narrow 1.4% band.

The TITAN Xp's individual benchmark scores reinforce its dominance. In PassMark G3D, it records 18,750 points, and in PassMark GPU Compute it reaches 9,430 points. The T400 has no recorded PassMark results in the database, so no direct comparison is possible for those workloads. The TITAN Xp also shows strong performance in PassMark DirectX tests: 226 in DirectX 9, 152 in DirectX 11, 119 in DirectX 10, and 69 in DirectX 12. Its PassMark G2D score of 883 rounds out the suite. The 3DMark Steel Nomad DX12 test shows a score of 2,372 for the TITAN Xp, though no corresponding T400 result exists.

FAQ

Q: How much faster is the NVIDIA TITAN Xp than the T400 4 GB in Vulkan?

A: The TITAN Xp scores 87,180 in Geekbench Vulkan, while the T400 scores 16,263. This gives the TITAN Xp a 436.1% advantage in that test.

Q: What is the average benchmark score difference between the two cards?

A: The TITAN Xp has an average benchmark score of 19,177, while the T400 4 GB has an average of 16,792. The TITAN Xp leads by 2,385 points on average.

Q: Which card has a higher percentile ranking among all GPUs?

A: The TITAN Xp sits at the 64th percentile of all GPUs, while the T400 4 GB is at the 60th percentile. Both cards are in the upper half of the tracked database.

Q: Are there any benchmark tests where the T400 4 GB outperforms the TITAN Xp?

A: In the two head-to-head tests recorded (Geekbench OpenCL and Geekbench Vulkan), the T400 4 GB does not win either. The TITAN Xp wins both, and the overall head-to-head tally is 2 wins for the TITAN Xp and 0 for the T400.

Q: How does the TITAN Xp compare to its nearest rival, the GeForce GTX 780?

A: The TITAN Xp's average score of 19,177 is only 0.1% higher than the GeForce GTX 780's 19,164. This makes the two cards statistically very close in overall performance.

Q: What is the T400 4 GB's standing relative to the Tesla M4?

A: The T400 4 GB has an average score of 16,792, while the Tesla M4 scores 16,932. The Tesla M4 leads by 0.8%, meaning the T400 is slightly behind this particular rival.

Architecture Differences

The two cards come from different NVIDIA architectures and process nodes. The TITAN Xp is built on the Pascal architecture with the GP102 chip, fabricated on a 16 nm process at TSMC. The T400 4 GB uses the Turing architecture with the TU117 chip, fabricated on a 12 nm process, also at TSMC. Despite being a newer generation, the T400 uses a much smaller chip: 200 mm² die size versus 471 mm² for the TITAN Xp. Transistor counts follow the same pattern, with the TITAN Xp packing 11,800 million transistors against the T400's 4,700 million. Interestingly, the transistor density is slightly higher on the TITAN Xp at 25.1M per mm², compared to 23.5M per mm² on the T400, despite the older process node.

The TITAN Xp belongs to the GeForce 10 generation, while the T400 is part of the Quadro Turing (Tx000) generation. The TITAN Xp's predecessor is the GeForce 900 series and its successor is the GeForce 20 series. The T400's predecessor is Quadro Volta and its successor is Workstation Ampere. Both cards use the PCIe 3.0 x16 bus interface and support the same API feature levels: DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.4.

Compute capabilities differ substantially. The TITAN Xp provides 12.15 TFLOPS of FP32 performance, while the T400 delivers 1,094.4 GFLOPS, which is roughly one tenth of the TITAN Xp's throughput. The FP16 situation is reversed in ratio but not in absolute terms. The TITAN Xp offers 189.8 GFLOPS at a 1:64 ratio, meaning its FP16 throughput is a fraction of its FP32 rate. The T400 offers 2.189 TFLOPS at a 2:1 ratio, meaning it can process FP16 at twice its FP32 rate. In absolute numbers, the T400's FP16 output of 2.189 TFLOPS is actually higher than the TITAN Xp's 189.8 GFLOPS.

Neither card includes ray tracing cores or tensor cores, as both predate the widespread integration of those dedicated units. The TITAN Xp uses GDDR5X memory while the T400 uses GDDR6, and the T400's memory runs at 10 Gbps effective versus the TITAN Xp's 11.4 Gbps effective. The TITAN Xp's memory controller is 384-bit wide, while the T400's is only 64-bit, which is a major factor in the bandwidth difference.

Specification Differences

The two cards differ across nearly every major specification category. The TITAN Xp has 3,840 shading units, 240 texture mapping units, and 96 render output units. The T400 has 384 shading units, 24 TMUs, and 16 ROPs. This represents a 10x difference in shading units, a 10x difference in TMUs, and a 6x difference in ROPs.

Memory capacity and bandwidth show a similar chasm. The TITAN Xp carries 12 GB of GDDR5X on a 384-bit bus, yielding 547.6 GB/s of bandwidth. The T400 carries 4 GB of GDDR6 on a 64-bit bus, yielding only 80.00 GB/s. The TITAN Xp's memory bandwidth is nearly seven times higher.

Pixel and texture rates follow the core configuration. The TITAN Xp achieves 151.9 GPixel/s and 379.7 GTexel/s, while the T400 manages 22.80 GPixel/s and 34.20 GTexel/s. Clock speeds differ in an interesting way: the TITAN Xp has a base clock of 1405 MHz and a boost clock of 1582 MHz, while the T400 has a base clock of 420 MHz and a boost clock of 1425 MHz. The T400's base clock is very low, but its boost clock is close to the TITAN Xp's base, reflecting a design that aggressively ramps up under load.

Power characteristics are drastically different. The TITAN Xp has a TDP of 250 W, requires a dual-slot cooler, and needs both a 6-pin and an 8-pin power connector, with a suggested PSU of 600 W. The T400 has a TDP of 30 W, fits in a single slot, requires no external power connectors, and has a suggested PSU of 200 W. Physical dimensions reflect this: the TITAN Xp measures 267 mm in length, 112 mm in height, and 40 mm in width. The T400 has no recorded dimensions in the database.

Display outputs differ as well. The TITAN Xp provides 1x HDMI 2.0 and 3x DisplayPort 1.4a outputs, while the T400 provides 3x mini-DisplayPort 1.4a outputs. The TITAN Xp was released in April 2017 with a launch MSRP of 1,199 USD, while the T400 was released in May 2021 with no recorded launch MSRP. Both cards are marked as end-of-life in production status.

The Verdict

The benchmark data presents a clear performance hierarchy. The NVIDIA TITAN Xp is overwhelmingly faster than the T400 4 GB in the two shared tests, with a 319.1% lead in OpenCL and a 436.1% lead in Vulkan. Its average benchmark score of 19,177 is 14.2% higher than the T400's 16,792, and it ranks four percentile points higher in the overall GPU distribution.

The TITAN Xp is the obvious choice for anyone prioritizing raw compute throughput, memory bandwidth, and large frame buffer capacity. Its 12 GB memory and 547.6 GB/s bandwidth make it suited for workloads that demand large datasets and high data movement rates. The 3,840 shading units and 12.15 TFLOPS of FP32 performance place it in a class far above the T400, whose 384 shading units and 1,094.4 GFLOPS represent a much more modest compute capability.

The T400 4 GB, however, has attributes that suit a different set of requirements. Its 30 W TDP, single-slot design, and lack of external power connectors mean it can be installed in systems with minimal power delivery and cooling overhead. The suggested PSU of 200 W, compared to 600 W for the TITAN Xp, indicates a much lower system-level impact. Its Turing architecture provides a 2:1 FP16 ratio, delivering 2.189 TFLOPS of FP16 performance, which exceeds the TITAN Xp's 189.8 GFLOPS in that specific precision. For workloads that rely heavily on FP16 computation and benefit from the newer architecture's efficiency, the T400 has a measurable advantage.

The data also shows that both cards sit in competitive tiers relative to their peers. The TITAN Xp is virtually tied with the GeForce GTX 780, Tesla K20m, RTX 4050 Mobile, and RX 6600, all within 0.7% of each other. The T400 is similarly close to the RX 7600S, Tesla M4, HD 7970M, and GTX 690, with deltas ranging from -1.4% to 0.6%. This suggests that neither card is an outlier in its performance class; they are simply in very different classes.

For users who need maximum compute throughput, the TITAN Xp is the definitive pick based on the recorded benchmarks. For users who need a low-power, low-footprint card with modern FP16 support and a later release date, the T400 4 GB offers a viable alternative, though it cannot match the TITAN Xp in any of the shared head-to-head tests. The choice ultimately depends on whether raw performance or efficiency and form factor takes priority in the target system.