AMD Radeon RX 7600M XT vs AMD Radeon RX 7900 XT Comparison

Head-to-Head Benchmarks

The recorded head-to-head data shows a decisive overall victory for the AMD Radeon RX 7900 XT, winning 9 out of 10 benchmark comparisons. The only exception is a striking anomaly in the Geekbench OpenCL test, where the AMD Radeon RX 7600M XT scores 74,869 against the RX 7900 XT's 12,756, a result that runs counter to every other measurement in the database. The RX 7900 XT wins this comparison by a margin of 83% in favor of the mobile part, but this outlier does not reflect the broader pattern across DirectX, Vulkan, and compute workloads.

In the modern 3DMark Steel Nomad DirectX 12 test, the RX 7900 XT posts a score of 5,623 against the RX 7600M XT's 2,048, a delta of 174.6%. This is the largest relative gap in the entire benchmark set, and it underscores how far apart these two parts are in current-generation rasterization workloads. Similarly, in Geekbench Vulkan, the desktop card leads with 71,068 points versus 27,793, a 155.7% advantage. These two tests alone establish that the RX 7900 XT is in a different performance class for graphics-heavy applications.

Legacy DirectX tests follow the same trajectory. The PassMark DirectX 11 result shows 340 points for the RX 7900 XT against 137 for the RX 7600M XT, a 148.2% lead. DirectX 10 yields 158 versus 76, a 107.9% gap, and DirectX 9 shows 322 versus 175, an 84% difference. The DirectX 12 PassMark test, while closer in relative terms, still favors the desktop card at 110 versus 58, a 89.7% delta.

Compute performance reinforces the desktop card's dominance. PassMark GPU Compute gives the RX 7900 XT 16,828 points versus 7,140 for the mobile part, a 135.7% lead. The overall PassMark G3D score is 29,009 against 13,907, a 108.6% difference, and even the 2D graphics test (PassMark G2D) shows a 37.8% advantage, with 1,232 points versus 894.

The average benchmark score for the RX 7900 XT is 13,745, while the RX 7600M XT averages 12,710. This places the desktop card 8.1% higher on average, though the Geekbench OpenCL outlier compresses the margin. Without that single test, the RX 7900 XT's average would be substantially higher. Notably, the RX 7900 XT's nearest rivals in the database include the AMD Radeon 660M (average 13,812, a 0.5% delta) and the NVIDIA RTX A2000 Mobile (average 13,821, a 0.5% delta), meaning the desktop card sits within a tight cluster of mobile and low-power parts when all benchmarks are averaged. The RX 7600M XT, by contrast, sits near the NVIDIA GeForce GTX 670 (average 12,773, a 0.5% delta) and the AMD Radeon Pro 455 (average 12,831, a 0.9% delta).

FAQ

Q: Which GPU wins the most head-to-head benchmarks?

A: The AMD Radeon RX 7900 XT wins 9 of 10 comparisons, with the sole loss coming in Geekbench OpenCL where the RX 7600M XT scores 74,869 versus 12,756.

Q: How large is the performance gap in the latest DirectX 12 workload?

A: In 3DMark Steel Nomad DX12, the RX 7900 XT scores 5,623 versus 2,048, a 174.6% lead.

Q: Does the RX 7600M XT have any compute advantage?

A: Only in the Geekbench OpenCL test, where it leads by 83%. In PassMark GPU Compute, the RX 7900 XT wins with 16,828 against 7,140, a 135.7% advantage.

Q: How do the two compare in Vulkan performance?

A: The RX 7900 XT scores 71,068 in Geekbench Vulkan versus 27,793 for the RX 7600M XT, a 155.7% lead.

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

A: The RX 7900 XT averages 13,745, while the RX 7600M XT averages 12,710.

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

A: The RX 7900 XT sits at the 55th percentile, while the RX 7600M XT sits at the 52nd percentile.

Architecture Differences

The two GPUs share the same RDNA 3.0 architecture, but they are built on fundamentally different scales. The RX 7900 XT uses the Navi 31 chip, fabricated on a 5 nm process at TSMC, while the RX 7600M XT uses the Navi 33 chip on a 6 nm process, also from TSMC. The process node difference directly impacts transistor density: the desktop chip packs 109.1 million transistors per square millimeter, whereas the mobile chip achieves 65.2 million per square millimeter.

The chip sizes diverge dramatically. The Navi 31 die measures 529 mm² and contains 57,700 million transistors, making it a large, power-hungry design. The Navi 33 die is only 204 mm² with 13,300 million transistors. This nearly fourfold difference in transistor count and more than double the die area explains the massive gap in compute resources. The RX 7900 XT features 5,376 shading units, 336 texture mapping units, and 192 raster operations units, while the RX 7600M XT has 2,048 shading units, 128 TMUs, and 64 ROPs. Even the ray tracing hardware scales accordingly: 84 RT cores on the desktop part versus 32 on the mobile part.

Clock behavior also differs in an interesting way. The RX 7600M XT actually has a higher boost clock at 2,469 MHz versus 2,394 MHz for the RX 7900 XT, and the game clocks are nearly identical (2,023 MHz versus 2,025 MHz). The base clocks are closer still, with the desktop card at 1,387 MHz and the mobile card at 1,280 MHz. This suggests the mobile chip compensates for its smaller scale with aggressive frequency tuning, but the sheer resource advantage of the Navi 31 chip overwhelms any clock-speed parity.

Memory architecture is another major differentiator. The RX 7900 XT uses 20 GB of GDDR6 on a 320-bit bus, achieving 800.0 GB/s of bandwidth. The RX 7600M XT uses 8 GB of GDDR6 on a 128-bit bus, yielding 288.0 GB/s. The memory clock also differs: 2,500 MHz (20 Gbps effective) on the desktop versus 2,250 MHz (18 Gbps effective) on the mobile part. This bandwidth gap of 512 GB/s is a primary reason for the desktop card's dominance in high-resolution and memory-intensive workloads.

The codenames reflect their positioning: "Plum Bonito" for the desktop and "Hotpink Bonefish" for the mobile. The generations are labeled Navi III (RX 7000) for the desktop and Navi Mobile (RX 7000M) for the laptop variant. The RX 7900 XT is end-of-life with a successor in Navi IV, while the RX 7600M XT remains active with no listed successor.

Specification Differences

The most visible specification gap is power consumption. The RX 7900 XT has a TDP of 300 W, while the RX 7600M XT draws 120 W. This 180 W difference explains the desktop card's physical design: a dual-slot cooler with two 8-pin power connectors and a recommended 700 W power supply. The mobile part is an IGP (integrated graphics processor) with no power connectors and no suggested PSU, as it relies on the host laptop's power delivery.

Form factor and connectivity also diverge. The RX 7900 XT measures 276 mm in length, 110 mm in height, and 51 mm in width, with display outputs including one HDMI 2.1a, two DisplayPort 2.1, and one USB Type-C. The RX 7600M XT has no listed dimensions and its display outputs are described as "portable device dependent," meaning the laptop manufacturer decides the actual ports.

The memory and compute specifications differ sharply, as detailed above: 20 GB versus 8 GB, 320-bit versus 128-bit, 800.0 GB/s versus 288.0 GB/s, 5,376 versus 2,048 shading units, and 84 versus 32 RT cores. Pixel and texture rates scale accordingly: the desktop card achieves 459.6 GPixel/s and 804.4 GTexel/s, while the mobile card reaches 158.0 GPixel/s and 316.0 GTexel/s. FP32 compute is 51.48 TFLOPS versus 20.23 TFLOPS, and FP16 is 103.0 TFLOPS versus 40.45 TFLOPS (both at 2:1 ratio).

The bus interface is identical (PCIe 4.0 x16), and both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The release dates differ by roughly two months: the RX 7900 XT launched on 2022-11-02, while the RX 7600M XT arrived on 2023-01-03. The desktop card has a launch MSRP of 899 USD, while the mobile part has no listed MSRP. Production status also differs: end-of-life for the desktop, active for the mobile. The RX 7900 XT's predecessor is Navi II, and its successor is Navi IV; the RX 7600M XT's predecessor is Polaris Mobile.

The Verdict

The data is unambiguous for high-performance desktop use: the AMD Radeon RX 7900 XT is the superior choice in nearly every workload category. Its 174.6% lead in 3DMark Steel Nomad DX12, 155.7% lead in Geekbench Vulkan, and 135.7% lead in PassMark GPU Compute make it the clear pick for gamers, content creators, and compute-oriented users who need maximum throughput. The 20 GB memory buffer and 800.0 GB/s bandwidth provide headroom that the 8 GB, 288.0 GB/s mobile part simply cannot match.

The RX 7600M XT should be selected only in scenarios where the Geekbench OpenCL result is the primary consideration, which is unusual for most real-world use cases. Its 74,869 OpenCL score is nearly six times that of the desktop card, but this single data point does not translate into advantages in any other recorded test. The mobile part's lower 120 W TDP makes it suitable for laptops, and its higher boost clock (2,469 MHz versus 2,394 MHz) shows that it competes on efficiency per watt, but it cannot overcome the resource deficit in raw performance.

For users with a desktop power budget and physical space for a dual-slot card, the RX 7900 XT offers between 37.8% and 174.6% higher scores across the benchmark suite. The average benchmark gap of 8.1% (13,745 versus 12,710) understates the true difference because the OpenCL outlier pulls the mobile card's average upward. Excluding that test, the RX 7900 XT's advantage grows substantially. The RX 7600M XT, by contrast, belongs in thin-and-light laptops where its 120 W envelope and IGP form factor are non-negotiable constraints.

The verdict, strictly from the recorded data: choose the RX 7900 XT for maximum performance, dense compute, and high-bandwidth memory. Choose the RX 7600M XT only when the Geekbench OpenCL workload is the sole application and when a mobile, low-power implementation is required. In any balanced comparison, the desktop card wins 9 out of 10 benchmarks, and the one loss is a statistical curiosity rather than a functional advantage.