AMD Radeon RX 7900 GRE vs NVIDIA N1X 40SM Comparison

FAQ

Q: What is the performance class of the AMD Radeon RX 7900 GRE based on the database?

A: The RX 7900 GRE achieves an average benchmark score of 32456, placing it in the 77th percentile among all GPUs. Its nearest rivals include the AMD FirePro S10000 (32388, 0.2% slower) and the AMD FirePro S9300 X2 (32540, 0.3% faster).

Q: How does the NVIDIA N1X 40SM compare in benchmark scores?

A: The N1X 40SM has an average benchmark score of 0 and sits in the 50th percentile, with no recorded benchmark entries and no nearest rivals listed in the database.

Q: What are the memory configurations of these two GPUs?

A: The RX 7900 GRE uses 16 GB of GDDR6 on a 256-bit bus with 576.0 GB/s bandwidth. The N1X 40SM uses 128 GB of LPDDR5X on a 256-bit bus with 273.2 GB/s bandwidth.

Q: Which GPU has higher raw compute throughput?

A: The RX 7900 GRE delivers 45.98 TFLOPS FP32, while the N1X 40SM delivers 24.02 TFLOPS FP32. The Radeon also leads in FP16 at 91.96 TFLOPS versus 24.02 TFLOPS.

Q: What are the architecture generations of these two products?

A: The RX 7900 GRE uses RDNA 3.0 architecture on the Navi 31 chip, from the Radeon RX 7000 series. The N1X 40SM uses Blackwell 2.0 architecture on the GB20B chip, classified as an IGP (integrated graphics processor) in the N1x generation.

Q: Do both GPUs use the same manufacturing process?

A: Yes, both are built on a 5 nm process at TSMC. The RX 7900 GRE has 57,700 million transistors on a 529 mm² die, while the N1X 40SM has an unknown transistor count on a 382 mm² die.

Architecture Differences

The AMD Radeon RX 7900 GRE and NVIDIA N1X 40SM represent fundamentally different design philosophies despite sharing the same 5 nm TSMC process node. The RX 7900 GRE is a discrete desktop graphics card built on RDNA 3.0, using the Navi 31 chip with the codename Plum Bonito. It belongs to the Navi III generation within the Radeon RX 7000 series. The N1X 40SM is built on Blackwell 2.0, uses the GB20B chip, and is classified as an IGP in the Blackwell IGP (N1x) generation, meaning it is designed as an integrated processor rather than a standalone card.

The RDNA 3.0 architecture in the RX 7900 GRE is a chiplet-based design with 57,700 million transistors spread across a 529 mm² die. This yields a transistor density of 109.1 million transistors per square millimeter. The N1X 40SM has a smaller 382 mm² die with an unknown transistor count, so its density cannot be calculated from the recorded data.

Both GPUs share identical counts of shading units (5120) and texture mapping units (320), but they diverge significantly in other compute resources. The RX 7900 GRE has 160 ROPs and 80 ray tracing cores, while the N1X 40SM has only 40 ROPs and 40 ray tracing cores. The NVIDIA part compensates with 160 tensor cores, a feature entirely absent from the Radeon (the tensor core field is null for the RX 7900 GRE).

Memory architecture differs substantially. The RX 7900 GRE uses 16 GB of GDDR6 with a 256-bit bus, achieving 576.0 GB/s of bandwidth. The N1X 40SM uses 128 GB of LPDDR5X on the same 256-bit bus, but bandwidth drops to 273.2 GB/s. The memory clock configuration also differs: the Radeon runs at 2250 MHz (18 Gbps effective), while the NVIDIA part runs at 1067 MHz (8.5 Gbps effective).

Clock behavior shows a different operating envelope. The RX 7900 GRE has a base clock of 1287 MHz, a game clock of 1880 MHz, and a boost clock of 2245 MHz. The N1X 40SM has a lower base clock of 741 MHz but a slightly higher boost clock of 2346 MHz, with no game clock recorded.

API support separates the two clearly. The RX 7900 GRE supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The N1X 40SM lists N/A for DirectX, OpenGL, and Vulkan, indicating no conventional graphics API support in the recorded data.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries between the RX 7900 GRE and the N1X 40SM, and the N1X 40SM has an empty benchmark list. However, the recorded scores for the RX 7900 GRE and the known specifications of the N1X 40SM allow for a clear comparative analysis based on compute metrics.

The most decisive advantage for the RX 7900 GRE lies in FP32 throughput. The Radeon delivers 45.98 TFLOPS, which is 1.91 times the 24.02 TFLOPS of the N1X 40SM. In FP16 compute, the gap widens dramatically: the RX 7900 GRE achieves 91.96 TFLOPS using a 2:1 ratio, while the N1X 40SM delivers only 24.02 TFLOPS with a 1:1 ratio. This represents a 3.83 times advantage for the Radeon in half-precision workloads.

Pixel throughput favors the AMD card by a wide margin. The RX 7900 GRE produces 359.2 GPixel/s against 93.84 GPixel/s for the N1X 40SM, a 3.83 times difference. This disparity directly reflects the ROP count difference (160 versus 40) and the higher clock speeds of the Radeon.

Texture throughput tells a different story. The N1X 40SM achieves 750.7 GTexel/s, slightly ahead of the RX 7900 GRE's 718.4 GTexel/s. This is notable because both GPUs have 320 TMUs, so the NVIDIA part's higher boost clock (2346 MHz versus 2245 MHz) and different texture unit efficiency give it a narrow 4.5% lead in this specific metric.

Memory bandwidth also favors the Radeon significantly. The RX 7900 GRE provides 576.0 GB/s, which is 2.11 times the 273.2 GB/s of the N1X 40SM. Despite having eight times more memory capacity (128 GB versus 16 GB), the NVIDIA part cannot match the AMD card's bandwidth due to the lower effective memory clock of 8.5 Gbps versus 18 Gbps.

In the RX 7900 GRE's own benchmark results, the highest raw score comes from Geekbench OpenCL at 175758, followed by Geekbench Vulkan at 99850. Passmark G3D shows 27089, and Passmark GPU Compute shows 15016. The 3DMark Steel Nomad DX12 test returns 4814. These results, combined with an average score of 32456, place the card in the 77th percentile of all GPUs. The nearest rivals are all AMD products: the FirePro S10000 (32388, 0.2% behind), FirePro S9300 X2 (32540, 0.3% ahead), Radeon RX 590 GME (32601, 0.4% ahead), and Radeon Pro 570X (32176, 0.9% behind).

Specification Differences

The two GPUs differ across nearly every specification category in the database.

Process node is identical: both use 5 nm at TSMC. Die size differs: 529 mm² for the RX 7900 GRE versus 382 mm² for the N1X 40SM. Transistor count is 57,700 million for AMD and unknown for NVIDIA.

Shading units are equal at 5120, and TMUs are equal at 320. ROPs differ: 160 for the Radeon, 40 for the NVIDIA part. Ray tracing cores differ: 80 versus 40. Tensor cores are present only on the NVIDIA part at 160, with none listed for AMD.

Clock speeds: the RX 7900 GRE has base 1287 MHz, game 1880 MHz, boost 2245 MHz, memory 2250 MHz (18 Gbps effective). The N1X 40SM has base 741 MHz, no game clock, boost 2346 MHz, memory 1067 MHz (8.5 Gbps effective).

Memory: 16 GB GDDR6 versus 128 GB LPDDR5X. Bus width is 256-bit for both. Bandwidth: 576.0 GB/s versus 273.2 GB/s.

Compute rates: FP32 is 45.98 TFLOPS versus 24.02 TFLOPS. FP16 is 91.96 TFLOPS (2:1) versus 24.02 TFLOPS (1:1). Pixel rate is 359.2 GPixel/s versus 93.84 GPixel/s. Texture rate is 718.4 GTexel/s versus 750.7 GTexel/s.

Power and form factor: the RX 7900 GRE has a TDP of 260 W, is dual-slot, requires 2x 8-pin power connectors, and suggests a 600 W PSU. The N1X 40SM has unknown TDP, is an IGP with no power connectors and no suggested PSU.

Interface and outputs: the Radeon uses PCIe 4.0 x16 with 1x HDMI 2.1a, 2x DisplayPort 2.1, and 1x USB Type-C. The NVIDIA part uses PCIe 5.0 x16 with 1x HDMI.

Physical dimensions: the RX 7900 GRE measures 276 mm x 110 mm x 51 mm. The N1X 40SM has no recorded dimensions.

API support: DirectX 12 Ultimate (12_2), OpenGL 4.6, Vulkan 1.4 for AMD versus N/A for all three on NVIDIA.

Release timing: the RX 7900 GRE launched on 2023-07-26 with a launch MSRP of 549 USD. The N1X 40SM has a release date of 2026-05-31 and no launch MSRP recorded.

Where Each One Wins

The RX 7900 GRE wins in most compute and rendering workloads based on the recorded data. Its FP32 throughput of 45.98 TFLOPS doubles that of the N1X 40SM, making it the stronger choice for general-purpose shader work and conventional 3D rendering. The FP16 advantage is even larger at 91.96 TFLOPS versus 24.02 TFLOPS, which matters for applications that can use half-precision arithmetic. The Radeon's 160 ROPs and 359.2 GPixel/s pixel rate give it a significant edge in fill-rate-bound scenarios such as high-resolution rasterization with heavy overdraw.

Memory bandwidth is another clear win for the RX 7900 GRE. At 576.0 GB/s, it provides more than double the bandwidth of the N1X 40SM's 273.2 GB/s. This benefits texture-heavy scenes, large framebuffers, and any workload where data movement is the bottleneck. The Radeon also has full API support across DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, while the NVIDIA part records no API support.

The N1X 40SM has specific strengths in a few areas. Its texture rate of 750.7 GTexel/s edges out the Radeon's 718.4 GTexel/s, giving it a narrow lead in purely texture-bound operations. The 128 GB memory capacity is eight times larger than the Radeon's 16 GB, which could benefit workloads requiring extremely large datasets resident in GPU memory. The NVIDIA part also includes 160 tensor cores, which the Radeon lacks entirely, suggesting a capability for tensor-based operations that the AMD card cannot perform. Its higher boost clock of 2346 MHz versus 2245 MHz helps in clock-sensitive tasks. The PCIe 5.0 x16 interface provides double the bus bandwidth of the Radeon's PCIe 4.0 x16, which matters for data transfer between the GPU and host system. As an IGP with no power connectors, the N1X 40SM also fits into power-constrained environments where a discrete card with a 260 W TDP would not.

The N1X 40SM's benchmark absence means its real-world performance is unverified in the database. Its 50th percentile ranking and zero average score reflect no recorded measurements, so its wins here are based entirely on specification analysis rather than tested results.

The Verdict

The data presents a clear performance hierarchy. The AMD Radeon RX 7900 GRE is a tested, active discrete GPU with an average benchmark score of 32456 and a 77th percentile ranking. It delivers 45.98 TFLOPS FP32, 576.0 GB/s of memory bandwidth, and 359.2 GPixel/s pixel throughput, with full DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 support. Its nearest rivals in the database are all within 1% of its average score, confirming it sits in a competitive mid-to-high tier of GPU performance.

The NVIDIA N1X 40SM is an untested IGP with no benchmark entries, no average score beyond zero, and no nearest rivals. Its specifications show a lower-compute device: 24.02 TFLOPS FP32, 273.2 GB/s bandwidth, 93.84 GPixel/s pixel rate, and no API support recorded. It does offer 128 GB of memory, 160 tensor cores, a higher texture rate, and a faster PCIe interface.

For buyers selecting a GPU for conventional gaming or rendering workloads where tested performance matters, the RX 7900 GRE is the only choice supported by actual benchmark data. It wins on every measured performance metric except texture rate and memory capacity. Its 549 USD launch MSRP and active production status further confirm it as a shipping product.

The N1X 40SM should be considered only for specialized use cases where its 128 GB memory capacity, tensor cores, or IGP form factor are essential, and where its lack of recorded API support and zero benchmark scores are acceptable. The database currently provides no evidence of its real-world performance.