AMD Ryzen Z1 Extreme GPU vs NVIDIA N1X 48SM Comparison

FAQ

Q: Which GPU has the higher boost clock speed?

A: The AMD Ryzen Z1 Extreme GPU boosts to 2700 MHz, while the NVIDIA N1X 48SM boosts to 2346 MHz. The AMD part runs with a base clock of 800 MHz versus 741 MHz for the NVIDIA IGP.

Q: How do the memory subsystems compare?

A: The AMD Ryzen Z1 Extreme GPU uses 16 GB of LPDDR5 over a 64-bit bus, delivering 51.20 GB/s of bandwidth. The NVIDIA N1X 48SM uses 128 GB of LPDDR5X over a 256-bit bus, delivering 273.2 GB/s. That is roughly 5.3 times the bandwidth for the NVIDIA part.

Q: What is the difference in FP32 compute performance?

A: The NVIDIA N1X 48SM delivers 28.83 TFLOPS of FP32 compute, while the AMD Ryzen Z1 Extreme GPU delivers 8.294 TFLOPS. The NVIDIA part is about 3.5 times higher in raw single-precision throughput.

Q: Which GPU has more shading units and texture units?

A: The NVIDIA N1X 48SM has 6144 shading units, 384 TMUs, and 48 ROPs. The AMD Ryzen Z1 Extreme GPU has 768 shading units, 48 TMUs, and 32 ROPs. The NVIDIA part has 8 times the shading units and TMUs.

Q: Do both GPUs support ray tracing?

A: Yes. The AMD Ryzen Z1 Extreme GPU includes 12 ray tracing cores. The NVIDIA N1X 48SM includes 48 ray tracing cores. The NVIDIA part also adds 192 tensor cores, while the AMD part lists none.

Q: What are the process nodes and release timelines?

A: The AMD Ryzen Z1 Extreme GPU is built on TSMC's 4 nm process and was released on 2023-06-12. The NVIDIA N1X 48SM is built on TSMC's 5 nm process with a release date of 2026-05-31.

Architecture Differences

The AMD Ryzen Z1 Extreme GPU uses the Phoenix chip with RDNA 3.0 architecture, fabricated on TSMC's 4 nm process. The die measures 178 mm² and contains 25,390 million transistors, yielding a transistor density of 142.6M per mm². It belongs to the Console GPU generation. The NVIDIA N1X 48SM uses the GB20B chip with Blackwell 2.0 architecture, fabricated on TSMC's 5 nm process. Its die is substantially larger at 382 mm², though its transistor count is listed as unknown in the database. The NVIDIA part belongs to the Blackwell IGP generation.

The compute layouts diverge sharply. The AMD processor groups 768 shading units into 48 TMUs and 32 ROPs, with 12 ray tracing cores and no tensor cores. The NVIDIA processor scales up to 6144 shading units, 384 TMUs, and 48 ROPs, with 48 ray tracing cores and 192 tensor cores. This is an 8:1 ratio in shading units and TMUs, and a 4:1 ratio in ray tracing cores.

Memory architecture differs by generation and capacity. The AMD side uses 16 GB of LPDDR5 on a 64-bit bus at 6.4 Gbps effective, producing 51.20 GB/s. The NVIDIA side uses 128 GB of LPDDR5X on a 256-bit bus at 8.5 Gbps effective, producing 273.2 GB/s. The NVIDIA part has 8 times the bus width and 8 times the memory capacity.

Clock behavior also differs. The AMD GPU runs at 800 MHz base and 2700 MHz boost. The NVIDIA GPU runs at 741 MHz base and 2346 MHz boost. Despite the lower clocks, the NVIDIA part achieves far higher throughput because of its massive parallel width.

API support separates the two. The AMD part supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA part lists N/A for DirectX, OpenGL, and Vulkan in the database. Power delivery differs as well: the AMD part has a 30 W TDP with no power connectors, while the NVIDIA TDP is listed as unknown, also with no power connectors. The NVIDIA part uses a PCIe 5.0 x16 bus interface, whereas the AMD part has no listed bus interface.

Where Each One Wins

The AMD Ryzen Z1 Extreme GPU wins on clock speed. Its 2700 MHz boost clock exceeds the NVIDIA N1X 48SM's 2346 MHz boost, and its 800 MHz base clock exceeds the NVIDIA's 741 MHz base. It also wins on process technology, using TSMC's 4 nm node versus the NVIDIA part's 5 nm node. The AMD part has a smaller die at 178 mm² versus 382 mm², and it is the only one of the two with a listed TDP at 30 W. It carries a lower memory clock in terms of effective data rate (6.4 Gbps versus 8.5 Gbps), but that is not a win.

The NVIDIA N1X 48SM wins on nearly every raw throughput metric. It delivers 28.83 TFLOPS FP32 versus 8.294 TFLOPS, a 3.5x advantage. Its texture rate is 900.9 GTexel/s versus 129.6 GTexel/s, a 7x advantage. Its pixel rate is 112.6 GPixel/s versus 86.40 GPixel/s. Memory bandwidth favors the NVIDIA part heavily at 273.2 GB/s versus 51.20 GB/s. The NVIDIA part also wins on memory capacity (128 GB versus 16 GB), memory type (LPDDR5X versus LPDDR5), bus width (256-bit versus 64-bit), shading units, TMUs, ROPs, ray tracing cores, and tensor cores. It is the only part with tensor cores, making it the sole option for tensor-accelerated workloads in this comparison.

The AMD part wins on transistor density at 142.6M per mm², reflecting the denser 4 nm process. It also has a launch MSRP of 699 USD, which is a listed fact but not a performance consideration.

Specification Differences

The two GPUs differ in every major specification category. The AMD Ryzen Z1 Extreme GPU uses the Phoenix chip with RDNA 3.0 and a 4 nm process. The NVIDIA N1X 48SM uses the GB20B chip with Blackwell 2.0 and a 5 nm process. Die size is 178 mm² for AMD versus 382 mm² for NVIDIA. Transistor count is 25,390 million for AMD versus unknown for NVIDIA. Transistor density is 142.6M per mm² for AMD versus null for NVIDIA.

Clock speeds: AMD base 800 MHz, boost 2700 MHz. NVIDIA base 741 MHz, boost 2346 MHz. Memory clock: AMD 800 MHz with 6.4 Gbps effective, NVIDIA 1067 MHz with 8.5 Gbps effective.

Memory: AMD has 16 GB LPDDR5 on a 64-bit bus with 51.20 GB/s bandwidth. NVIDIA has 128 GB LPDDR5X on a 256-bit bus with 273.2 GB/s bandwidth.

Compute units: AMD has 768 shading units, 48 TMUs, 32 ROPs, 12 ray tracing cores, and no tensor cores. NVIDIA has 6144 shading units, 384 TMUs, 48 ROPs, 48 ray tracing cores, and 192 tensor cores.

Rates: AMD pixel rate 86.40 GPixel/s, texture rate 129.6 GTexel/s, FP32 8.294 TFLOPS, FP16 16.59 TFLOPS (2:1). NVIDIA pixel rate 112.6 GPixel/s, texture rate 900.9 GTexel/s, FP32 28.83 TFLOPS, FP16 28.83 TFLOPS (1:1).

Power and physical: AMD TDP 30 W, no power connectors, dimensions 280 mm by 111 mm by 21 mm. NVIDIA TDP unknown, no power connectors, slot width IGP, no dimensions listed.

Interfaces and outputs: AMD has no listed bus interface and 1x USB Type-C display output. NVIDIA has PCIe 5.0 x16 bus interface and 1x HDMI display output.

APIs: AMD supports DirectX 12 Ultimate (12_2), OpenGL 4.6, Vulkan 1.4. NVIDIA lists N/A for all three.

Production and release: Both are Active. AMD released 2023-06-12 with a launch MSRP of 699 USD. NVIDIA released 2026-05-31 with no launch MSRP.

Head-to-Head Benchmarks

The database records no head-to-head benchmark entries for this pair, and both parts show an average benchmark score of 0 with a percentile rank of 50 against all GPUs. The analysis therefore rests on the recorded specification data.

The largest win for the NVIDIA N1X 48SM is in texture rate. At 900.9 GTexel/s, it is 7.0 times the AMD Ryzen Z1 Extreme GPU's 129.6 GTexel/s. This reflects the 8:1 ratio in TMUs (384 versus 48) combined with the NVIDIA part's still-substantial 2346 MHz boost clock.

The second-largest win is in shading throughput. The NVIDIA part's 28.83 TFLOPS FP32 is 3.5 times the AMD part's 8.294 TFLOPS. The FP16 comparison is narrower on a ratio basis: NVIDIA delivers 28.83 TFLOPS at 1:1, while AMD delivers 16.59 TFLOPS at 2:1. In raw FP16 numbers, NVIDIA leads by a factor of 1.7.

Memory bandwidth is another decisive NVIDIA win. The 273.2 GB/s figure is 5.3 times the AMD part's 51.20 GB/s. The NVIDIA part's 256-bit bus and LPDDR5X at 8.5 Gbps effective create this gap. The AMD part's 64-bit bus with LPDDR5 at 6.4 Gbps effective cannot approach it.

Pixel rate favors NVIDIA, but by a smaller margin: 112.6 GPixel/s versus 86.40 GPixel/s, a 1.3x advantage. The AMD part's higher boost clock (2700 MHz versus 2346 MHz) partially compensates for its lower ROP count (32 versus 48).

The AMD Ryzen Z1 Extreme GPU wins on clock speeds. Its 2700 MHz boost is 15% higher than the NVIDIA part's 2346 MHz. Its 800 MHz base is 8% higher than the NVIDIA part's 741 MHz. The AMD part also wins on process node density: 142.6M transistors per mm² on 4 nm versus the NVIDIA part's null density on 5 nm.

The NVIDIA part wins on ray tracing resources with 48 ray tracing cores versus 12, a 4:1 ratio. It also wins on tensor cores, where AMD has none and NVIDIA has 192. The NVIDIA part's FP16 at 1:1 ratio indicates it does not rely on packed math to reach its FP16 number, whereas the AMD part's 2:1 ratio indicates its FP16 figure uses packed execution.

The Verdict

The recorded data shows a single clear conclusion: the NVIDIA N1X 48SM is the stronger GPU by a wide margin in almost every throughput category. It leads in FP32 compute by 3.5x, in texture rate by 7.0x, in pixel rate by 1.3x, and in memory bandwidth by 5.3x. It has 8x the shading units, 8x the TMUs, 1.5x the ROPs, 4x the ray tracing cores, and 192 tensor cores where the AMD part has none. Its 128 GB memory capacity is 8x the AMD part's 16 GB, and its LPDDR5X memory operates at a higher effective data rate of 8.5 Gbps versus 6.4 Gbps.

The AMD Ryzen Z1 Extreme GPU holds advantages only in clock speeds, process density, and power envelope. Its 2700 MHz boost clock is higher, its 4 nm node is denser, and its 30 W TDP is the only listed power figure in the comparison. For workloads that scale with clock frequency rather than parallel width, the AMD part shows a narrower gap, as seen in the pixel rate comparison where its higher clocks offset its lower ROP count.

For applications that depend on raw compute throughput, texture filtering, memory bandwidth, or tensor operations, the NVIDIA N1X 48SM is the decisive choice. The data supports no other interpretation. For constrained power scenarios where the 30 W TDP of the AMD part matters and where the workload favors higher clock speeds over massive parallelism, the AMD Ryzen Z1 Extreme GPU has a role. Outside that specific case, the NVIDIA part dominates every measured specification of consequence.