GPU Comparison

The AMD Radeon RX 7600 XT and NVIDIA T400 occupy opposite ends of the GPU spectrum, yet both hold a 60th percentile ranking among all GPUs. The data shows a decisive performance gap, but the T400's existence suggests a fundamentally different purpose. The RX 7600 XT is an active, dual-slot gaming card, while the T400 is an end-of-life, single-slot workstation card. Their benchmark scores, architectural choices, and specifications tell a story of two devices designed for entirely different workloads.

Head-to-Head Benchmarks

The head-to-head results are lopsided. In Geekbench OpenCL, the AMD Radeon RX 7600 XT scores 92,426, compared to the NVIDIA T400's 17,039. That is a delta of 442.4% in favor of AMD. This is not a marginal victory; the RX 7600 XT delivers more than five times the raw compute throughput. The gap is slightly narrower in Geekbench Vulkan, where the RX 7600 XT scores 48,366 versus the T400's 15,976, a 202.7% advantage. Even in the API where the T400 performs relatively better, AMD still more than triples its score.

The T400's average benchmark score is 16,508, which places it within 0.9% of the AMD Radeon RX 5700 XT and 0.6% of the NVIDIA RTX PRO 6000 Blackwell. This suggests the T400's modest scores are consistent with a low-power, entry-level workstation part. The RX 7600 XT, by contrast, averages 17,083, sitting 0.3% ahead of the NVIDIA GeForce GTX 690 and 0.4% ahead of the AMD Radeon HD 7970M. Its closest rival is the NVIDIA GeForce RTX 3070, which is 0.7% faster on average. The RX 7600 XT's raw performance is competitive with much higher-tier cards, whereas the T400's average score is surprisingly close to that of the RTX 5090 D V2, which is only 0.0% different. This indicates that the average benchmark score metric can obscure massive differences in specific workloads.

Where Each One Wins

The RX 7600 XT wins every head-to-head test available, with 2 wins to the T400's 0. Its dominance spans both compute (OpenCL) and graphics (Vulkan) APIs. The data shows that the RX 7600 XT is the clear choice for any application that leverages these cross-platform standards. In its own benchmark suite, the RX 7600 XT also posts a Passmark G3D score of 17,132 and a Passmark GPU Compute score of 8,987, indicating strong rasterization and compute capabilities. Its DirectX 12 Passmark score is 65, while its DirectX 11 score is 167, showing better optimization for older APIs.

The T400, despite its lower raw numbers, is not without a niche. Its single-slot design, 30 W TDP, and lack of external power connectors make it suitable for systems with severe space and power constraints. The data does not include the T400 in any Passmark tests, so its performance in those specific workloads is unknown. However, its Geekbench Vulkan score of 15,976, while low, is still functional for basic rendering tasks. The T400 also supports 3x mini-DisplayPort 1.4a outputs, allowing multi-monitor setups in a compact form factor. The RX 7600 XT, with a 190 W TDP and dual-slot cooler, requires a 450 W suggested PSU and a single 8-pin connector, making it unsuitable for low-power or space-constrained environments.

Architecture Differences

The two GPUs are built on radically different architectures and process nodes. The AMD Radeon RX 7600 XT uses the Navi 33 chip, based on the RDNA 3.0 architecture, with the codename "Hotpink Bonefish." It is manufactured on a 6 nm process at TSMC, containing 13,300 million transistors on a 204 mm² die. The NVIDIA T400 uses the TU117 chip, based on the older Turing architecture, and is also built by TSMC, but on a 12 nm process. It packs only 4,700 million transistors into a 200 mm² die. The transistor density tells the story: the RX 7600 XT achieves 65.2M transistors per mm², while the T400 manages just 23.5M per mm². This is a direct result of the process node difference, with the 6 nm node allowing nearly three times the density of the 12 nm node.

The architectural feature sets also diverge sharply. The RX 7600 XT includes 32 ray tracing cores, while the T400 has none. The RX 7600 XT supports DirectX 12 Ultimate (12_2), while the T400 is limited to DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4, but the underlying hardware implementations are completely different generations. The RX 7600 XT's FP16 performance is 22.57 TFLOPS at a 1:1 ratio with FP32, meaning it does not sacrifice half-precision throughput. The T400's FP16 is 2.189 TFLOPS at a 2:1 ratio, which is half its FP32 rate of 1,094.4 GFLOPS. This suggests the T400 is not optimized for compute-heavy AI or scientific workloads that rely on FP16.

Specification Differences

The specification sheets reveal fundamental differences in memory, bandwidth, and power. The RX 7600 XT features 16 GB of GDDR6 memory on a 128-bit bus, delivering 288.0 GB/s of bandwidth. The T400 offers just 2 GB of GDDR6 on a 64-bit bus, with 80.00 GB/s of bandwidth. That is a 14 GB memory capacity advantage and a 3.6x bandwidth advantage for AMD. The RX 7600 XT's memory clock is 2250 MHz (18 Gbps effective), while the T400 runs at 1250 MHz (10 Gbps effective). These numbers explain why the RX 7600 XT can handle large textures and datasets that would quickly exhaust the T400's memory.

Clock speeds also differ significantly. The RX 7600 XT has a base clock of 1980 MHz, a game clock of 2470 MHz, and a boost clock of 2755 MHz. The T400 has a base clock of just 420 MHz and a boost clock of 1425 MHz. The AMD card's base clock is higher than the T400's boost clock. The RX 7600 XT has 2048 shading units, 128 TMUs, and 64 ROPs, while the T400 has 384 shading units, 24 TMUs, and 16 ROPs. The pixel rate is 176.3 GPixel/s for AMD versus 22.80 GPixel/s for NVIDIA, and the texture rate is 352.6 GTexel/s versus 34.20 GTexel/s. The RX 7600 XT also uses a PCIe 4.0 x8 interface, while the T400 uses PCIe 3.0 x16. The T400 is single-slot with no power connectors, while the RX 7600 XT is dual-slot with a single 8-pin connector. The T400's dimensions are not listed, but its single-slot nature is a key differentiator.

FAQ

Q: Is the AMD Radeon RX 7600 XT always faster than the NVIDIA T400?

A: Yes, in the head-to-head benchmarks, the RX 7600 XT wins both tests. It is 442.4% faster in Geekbench OpenCL and 202.7% faster in Geekbench Vulkan.

Q: Why is the T400's average benchmark score so close to the RX 7600 XT's?

A: The T400's average score is 16,508, while the RX 7600 XT's is 17,083. However, this aggregate metric masks large per-test differences. The T400's nearest rival, the NVIDIA GeForce RTX 5090 D V2, has an average score of 16,504, just 0.0% different, showing that average scores can cluster tightly despite very different performance profiles.

Q: Does the NVIDIA T400 support ray tracing?

A: No. The T400's specification lists no RT cores, whereas the AMD Radeon RX 7600 XT includes 32 ray tracing cores. The T400 is also limited to DirectX 12 (12_1), while the RX 7600 XT supports DirectX 12 Ultimate (12_2).

Q: What is the memory capacity difference between the two cards?

A: The AMD Radeon RX 7600 XT has 16 GB of GDDR6 memory, while the NVIDIA T400 has 2 GB. This is a 14 GB difference in favor of AMD.

Q: Which card is more power-efficient?

A: The NVIDIA T400 has a 30 W TDP and requires no external power connectors, with a suggested PSU of 200 W. The AMD Radeon RX 7600 XT has a 190 W TDP, requires a single 8-pin connector, and a 450 W suggested PSU.

Q: Are both cards on the same manufacturing process?

A: No. The AMD Radeon RX 7600 XT uses a 6 nm process at TSMC, while the NVIDIA T400 uses a 12 nm process at the same foundry. This results in transistor densities of 65.2M / mm² for AMD and 23.5M / mm² for NVIDIA.

The Verdict

The data is unambiguous for performance: the AMD Radeon RX 7600 XT is the superior choice for any compute or graphics workload measured. Its 442.4% lead in OpenCL and 202.7% lead in Vulkan make it the only rational pick for gaming, content creation, or general-purpose GPU compute. The 16 GB memory and 288.0 GB/s bandwidth provide headroom for modern workloads, and the 32 RT cores plus DirectX 12 Ultimate support future-proofing. Its launch MSRP is 329 USD, which is a single data point that does not factor into performance analysis.

The NVIDIA T400, however, is not a failed product. Its 30 W TDP, single-slot design, and lack of external power connectors make it ideal for embedded systems, low-profile workstations, or multi-GPU configurations where space and power are at a premium. The data shows it can still output to three mini-DisplayPort monitors and handle basic Vulkan workloads. For users who need a display output and minimal compute in a constrained environment, the T400 serves a purpose. But for anyone comparing raw benchmark scores, the RX 7600 XT is the definitive winner, with every metric in its favor. The choice comes down to physical constraints versus raw performance, and the data suggests those are the only two criteria that matter.