AMD Radeon RX 7800 XT vs NVIDIA N1 20SM Comparison

The Verdict

The recorded data places these two products in entirely different segments. The AMD Radeon RX 7800 XT is a discrete, actively sold add-in board with a full benchmark suite and an average score of 11,627. The NVIDIA N1 20SM is an integrated graphics processor (IGP) with no recorded benchmark scores and an average score of zero. The RX 7800 XT holds a percentile rank of 51 against all GPUs, while the N1 20SM sits at percentile 50, a difference that is functionally meaningless given the absence of performance data for the latter.

For any user selecting between these two, the data points exclusively to the RX 7800 XT. It delivers measurable performance across 3DMark, Geekbench, and Passmark tests, with a peak score of 54,228 in Geekbench Vulkan. The N1 20SM offers no comparable measurements, making any performance-based comparison impossible. The N1 20SM does provide 128 GB of LPDDR5X memory and PCIe 5.0 connectivity, but without benchmark results, those specifications cannot translate into verified capability. The RX 7800 XT is the only option with demonstrable compute and graphics output in the database.

Architecture Differences

The architectural split between these two parts is substantial. The RX 7800 XT uses the Navi 32 chip built on RDNA 3.0 architecture, part of the Navi III (RX 7000) generation with the codename Wheat Nas. The N1 20SM uses the GB20B chip on Blackwell 2.0 architecture, belonging to the Blackwell IGP (N1x) generation. Both are fabricated on a 5 nm process at TSMC, but the similarities end there.

The RX 7800 XT packs 28,100 million transistors on a 346 mm² die, yielding a transistor density of 81.2 million per square millimeter. The N1 20SM uses a larger 382 mm² die but its transistor count is listed as unknown, so no density figure can be derived. The RX 7800 XT is a dual-slot card requiring 2x 8-pin power connectors and a 600 W suggested PSU, while the N1 20SM is an IGP with no power connectors and no suggested PSU, reflecting its integration into a motherboard or system-on-chip package.

The compute resources differ sharply. The RX 7800 XT contains 3,840 shading units, 240 texture mapping units, 96 ROPs, and 60 ray tracing cores. The N1 20SM has 2,560 shading units, 160 TMUs, 24 ROPs, and 20 RT cores. The N1 20SM additionally includes 80 tensor cores, while the RX 7800 XT has none listed. The RX 7800 XT reaches 37.32 TFLOPS FP32 and FP16 (1:1 ratio), whereas the N1 20SM delivers 12.01 TFLOPS in both precision formats. Pixel rate is 233.3 GPixel/s for the RX 7800 XT versus 56.30 GPixel/s for the N1 20SM. Texture rate is 583.2 GTexel/s versus 375.4 GTexel/s.

The RX 7800 XT supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1 20SM lists N/A for all three APIs. The RX 7800 XT offers 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs; the N1 20SM provides only 1x HDMI. The N1 20SM uses a PCIe 5.0 x16 bus interface, ahead of the RX 7800 XT's PCIe 4.0 x16.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries for these two products. The wins counter shows zero for both sides. The RX 7800 XT has ten individual benchmark scores, while the N1 20SM has an empty benchmark array. This means the only quantitative comparison available is the average benchmark score field, where the RX 7800 XT records 11,627 against zero for the N1 20SM.

Looking at the RX 7800 XT's own results, its strongest showings are in Geekbench Vulkan at 54,228 and Geekbench OpenCL at 18,290. Passmark G3D yields 24,176, and Passmark GPU Compute scores 13,473. In 3DMark Steel Nomad DX12, it records 4,157. The Passmark legacy tests are lower: DirectX 9 at 304, DirectX 11 at 249, DirectX 10 at 121, and DirectX 12 at 93. Passmark G2D scores 1,177. These figures establish the RX 7800 XT as a capable performer across modern and legacy workloads.

The nearest rivals for the RX 7800 XT provide context. The NVIDIA GeForce GTX 1660 has an average score of 11,680, placing the RX 7800 XT 0.5% behind it. The AMD Radeon Pro 5500M averages 11,528, with the RX 7800 XT 0.9% ahead. The NVIDIA Tesla K20c averages 11,479, putting the RX 7800 XT 1.3% ahead. The AMD Radeon RX 6500 XT averages 11,842, meaning the RX 7800 XT trails by 1.8%. These deltas are all within roughly two percentage points, indicating the RX 7800 XT's average score sits in a tightly clustered performance band around these four products.

For the N1 20SM, there are no nearest rivals and no scores to interpret. Its percentile rank of 50 appears to be a default or placeholder value, as it cannot be derived from any recorded measurements. The absence of data prevents any statement about its relative standing.

Specification Differences

The two products diverge across nearly every specification field.

Memory: The RX 7800 XT uses 16 GB of GDDR6 on a 256-bit bus, delivering 624.1 GB/s bandwidth. The N1 20SM uses 128 GB of LPDDR5X on a 256-bit bus, delivering 273.2 GB/s. The N1 20SM has eight times the capacity but less than half the bandwidth.

Clocks: The RX 7800 XT has a base clock of 1295 MHz, a boost of 2430 MHz, and a game clock of 2124 MHz. Its memory runs at 2438 MHz, effective 19.5 Gbps. The N1 20SM has a base of 741 MHz and a boost of 2346 MHz, with no game clock listed. Its memory runs at 1067 MHz, effective 8.5 Gbps.

Interface: The RX 7800 XT uses PCIe 4.0 x16. The N1 20SM uses PCIe 5.0 x16.

Physical form: The RX 7800 XT is dual-slot, measures 267 mm in length, 111 mm in height, and 50 mm in width. The N1 20SM is an IGP with no dimensions listed.

Release timing: The RX 7800 XT was released on 2023-09-05. The N1 20SM has a release date of 2026-05-31, roughly two and a half years later.

Predecessor and successor: The RX 7800 XT lists Navi II as its predecessor and Navi IV as its successor. The N1 20SM lists neither.

Launch MSRP: The RX 7800 XT has a launch MSRP of 499 USD. The N1 20SM has no launch MSRP recorded.

Production status: Both are listed as active.

Transistors and density: The RX 7800 XT has 28,100 million transistors and a density of 81.2M per mm². The N1 20SM's transistor count is unknown, and its density is null.

Tensor cores: The N1 20SM has 80 tensor cores; the RX 7800 XT has none recorded.

Power: The RX 7800 XT has a TDP of 263 W. The N1 20SM has an unknown TDP.

FAQ

Q: Which product has higher memory bandwidth?

A: The AMD Radeon RX 7800 XT records 624.1 GB/s, while the NVIDIA N1 20SM records 273.2 GB/s.

Q: Does the NVIDIA N1 20SM support DirectX or Vulkan?

A: The database lists DirectX, OpenGL, and Vulkan as N/A for the N1 20SM. The RX 7800 XT supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: How does the RX 7800 XT compare to its nearest rivals?

A: The RX 7800 XT averages 11,627, which is 0.5% behind the GeForce GTX 1660, 0.9% ahead of the Radeon Pro 5500M, 1.3% ahead of the Tesla K20c, and 1.8% behind the Radeon RX 6500 XT.

Q: What is the difference in shading units?

A: The RX 7800 XT has 3,840 shading units, while the N1 20SM has 2,560.

Q: Which product has tensor cores?

A: The NVIDIA N1 20SM includes 80 tensor cores. The AMD Radeon RX 7800 XT has no tensor cores listed.

Q: What is the release date difference?

A: The RX 7800 XT was released on 2023-09-05. The N1 20SM has a release date of 2026-05-31.

Q: Which product has a higher boost clock?

A: The RX 7800 XT boosts to 2430 MHz, slightly above the N1 20SM's 2346 MHz boost. The RX 7800 XT also has a base clock of 1295 MHz versus 741 MHz for the N1 20SM.

Q: How many display outputs does each support?

A: The RX 7800 XT provides 1x HDMI 2.1a and 3x DisplayPort 2.1. The N1 20SM provides 1x HDMI.