AMD Radeon RX 7800 XT vs NVIDIA T600 Mobile Comparison

NVIDIA T600 Mobile and AMD Radeon RX 7800 XT sit at opposite ends of the GPU spectrum, yet their average benchmark scores are nearly identical. The data shows a 0.7% difference in aggregate performance, with the T600 Mobile edging ahead at 32849 versus 32619 for the RX 7800 XT. That headline number, however, masks a chasm in workload behavior, architectural intent, and physical requirements. This analysis breaks down what the numbers actually mean for a builder deciding between a 40-watt mobile chip and a 263-watt desktop monster.

Head-to-Head Benchmarks

The only directly comparable tests in the data are Geekbench OpenCL and Vulkan, and the RX 7800 XT dominates both without exception. In Geekbench OpenCL, the AMD card scores 139381 against the T600 Mobile’s 35486, a 74.5% advantage. The Vulkan gap is even wider: 143060 versus 30211, a 78.9% lead for the RX 7800 XT. These are not marginal wins; they represent a roughly four-to-one raw compute throughput difference in cross-platform API workloads.

What makes this interesting is that the aggregate benchmark scores (32849 vs 32619) suggest near-parity. That happens because the aggregate average pools across different test suites, and the T600 Mobile only has two benchmark entries (both Geekbench), while the RX 7800 XT has ten entries spanning Passmark DirectX 9/10/11/12, G2D, G3D, and compute tests. The RX 7800 XT’s Passmark scores are mixed — 24176 in G3D, 13473 in compute, but only 121 in DirectX 10 and 93 in DirectX 12 — which pulls its average down. The T600 Mobile’s two Geekbench scores are both above 30000, so its average holds up despite far lower peak performance.

Interpreting the head-to-head numbers directly: the RX 7800 XT is the clear winner in every shared test, with deltas of 74.5% and 78.9%. The T600 Mobile’s 0.7% aggregate advantage comes from having a smaller, more consistent benchmark pool, not from superior performance. If you are choosing based on raw compute in OpenCL or Vulkan, the data is unambiguous — the AMD card is roughly four times faster.

Architecture Differences

The T600 Mobile uses the TU117 chip on NVIDIA’s Turing architecture, built on a 12 nm process at TSMC with 4,700 million transistors on a 200 mm² die (23.5 million transistors per mm²). The RX 7800 XT uses Navi 32 on AMD’s RDNA 3.0 architecture, also TSMC but at 5 nm, packing 28,100 million transistors into 346 mm² (81.2 million per mm²). The density difference is stark: AMD crams nearly 3.5 times more transistors into a die that is only 73% larger.

Shading units tell the story of compute headroom. The T600 Mobile has 896 shading units, 56 texture mapping units, and 32 ROPs. The RX 7800 XT has 3840 shading units, 240 TMUs, and 96 ROPs — 4.3 times the shaders, 4.3 times the TMUs, and 3 times the ROPs. Clock speeds reinforce this: the T600 Mobile boosts to 1410 MHz, while the RX 7800 XT boosts to 2430 MHz with a 2124 MHz game clock. Combined, that yields 37.32 TFLOPS FP32 for the AMD card versus 2.527 TFLOPS for the NVIDIA chip — a 14.8x raw compute ratio.

Ray tracing is another major split. The RX 7800 XT has 60 dedicated RT cores; the T600 Mobile has none listed. Similarly, the RX 7800 XT supports DirectX 12 Ultimate (12_2), while the T600 Mobile is limited to DirectX 12 (12_1). Both support OpenGL 4.6 and Vulkan 1.4. Memory architecture differs completely: 4 GB GDDR6 on a 128-bit bus (192.0 GB/s) for the T600 Mobile versus 16 GB GDDR6 on a 256-bit bus (624.1 GB/s) for the RX 7800 XT.

Power and physical design are where the chips diverge most sharply. The T600 Mobile is rated at 40 W TDP, uses an IGP slot width, and has no power connectors — it is designed to be soldered into a laptop or compact system. The RX 7800 XT draws 263 W, spans a dual-slot cooler, requires two 8-pin connectors, and needs a 600 W suggested PSU. It measures 267 mm long, 111 mm tall, and 50 mm wide. The T600 Mobile has no listed dimensions, reinforcing its mobile-only nature.

The Verdict

The data says these GPUs are not competitors despite their similar average scores. The RX 7800 XT wins every shared benchmark by a wide margin, offers 16 GB of memory versus 4 GB, has 60 RT cores versus none, and delivers 14.8x the FP32 throughput. The T600 Mobile wins on power efficiency — 40 W versus 263 W — and on form factor, since it requires no external power and fits in an IGP slot.

Who should pick which? If you need compute performance in OpenCL or Vulkan workloads, the RX 7800 XT is the only rational choice from this data. Its Geekbench Vulkan score of 143060 is 4.7 times higher than the T600 Mobile’s 30211. If you need a low-power embedded or mobile GPU that can be integrated without any power connectors, the T600 Mobile is the pick — nothing in the RX 7800 XT’s specs allows that use case.

The aggregate benchmark parity is a statistical artifact, not a performance equivalence. The RX 7800 XT’s 76th percentile ranking among all GPUs matches the T600 Mobile’s 76th percentile, but that ranking is computed across different benchmark suites with different weightings. In any head-to-head test available, the AMD card wins decisively.

Specification Differences

| Specification | NVIDIA T600 Mobile | AMD Radeon RX 7800 XT |

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

| Chip | TU117 | Navi 32 |

| Architecture | Turing | RDNA 3.0 |

| Process node | 12 nm | 5 nm |

| Transistors | 4,700 million | 28,100 million |

| Die size | 200 mm² | 346 mm² |

| Base clock | 780 MHz | 1295 MHz |

| Boost clock | 1410 MHz | 2430 MHz |

| Memory size | 4 GB | 16 GB |

| Memory bus | 128 bit | 256 bit |

| Memory bandwidth | 192.0 GB/s | 624.1 GB/s |

| Shading units | 896 | 3840 |

| TMUs | 56 | 240 |

| ROPs | 32 | 96 |

| RT cores | None | 60 |

| FP32 | 2.527 TFLOPS | 37.32 TFLOPS |

| TDP | 40 W | 263 W |

| Slot width | IGP | Dual-slot |

| Power connectors | None | 2x 8-pin |

| Suggested PSU | None | 600 W |

| Bus interface | PCIe 3.0 x16 | PCIe 4.0 x16 |

| Display outputs | Portable Device Dependent | 1x HDMI 2.1a, 3x DisplayPort 2.1 |

| DirectX support | 12 (12_1) | 12 Ultimate (12_2) |

| Release date | 2021-04-11 | 2023-08-24 |

| Production status | End-of-life | Active |

FAQ

Q: Which GPU has higher raw compute performance?

A: The RX 7800 XT delivers 37.32 TFLOPS FP32 versus the T600 Mobile’s 2.527 TFLOPS, a 14.8x advantage.

Q: Can the T600 Mobile handle ray tracing workloads?

A: No. The T600 Mobile lists no RT cores, while the RX 7800 XT has 60 RT cores and supports DirectX 12 Ultimate.

Q: How much memory bandwidth does each card offer?

A: The RX 7800 XT provides 624.1 GB/s over a 256-bit bus, compared to the T600 Mobile’s 192.0 GB/s over 128 bits.

Q: Why are their average benchmark scores so close?

A: The T600 Mobile’s average (32849) is based on only two Geekbench tests, both above 30000. The RX 7800 XT’s average (32619) includes ten tests, with several low Passmark scores (93 in DirectX 12, 121 in DirectX 10) that drag down its mean.

Q: What power supply does the RX 7800 XT require?

A: The data lists a suggested PSU of 600 W and two 8-pin power connectors. The T600 Mobile needs no external power connectors and draws 40 W.

Q: Which GPU is still in production?

A: The RX 7800 XT is marked as Active, while the T600 Mobile is End-of-life.

Where Each One Wins

The RX 7800 XT wins in every measurable compute benchmark. Geekbench OpenCL: 139381 vs 35486. Geekbench Vulkan: 143060 vs 30211. It also wins on memory capacity (16 GB vs 4 GB), bandwidth (624.1 vs 192.0 GB/s), and feature set — it has RT cores, DirectX 12 Ultimate, and PCIe 4.0. If your workload uses Vulkan or OpenCL and can tolerate a 263 W dual-slot card with a 600 W PSU, the RX 7800 XT is the data-backed choice.

The T600 Mobile wins only in power and form factor. At 40 W with no external power connectors and an IGP slot width, it fits in systems where the RX 7800 XT physically cannot. It also carries a 0.7% higher aggregate benchmark score (32849 vs 32619), but that is misleading — the score comes from a narrower benchmark pool. The T600 Mobile’s PCIe 3.0 interface and mobile display outputs (listed as portable device dependent) further cement its role as an embedded or laptop part.

For a desktop builder with power headroom, the RX 7800 XT is the only sensible pick. For a compact, low-power system where a discrete GPU must be integrated without any power delivery changes, the T600 Mobile is the sole option that matches the requirement. There is no overlap in their practical use cases — the data shows two different product categories that happen to share a similar average score.