AMD Radeon RX 9070 XT vs NVIDIA B200 SXM6 Comparison

FAQ

Q: What are the average benchmark scores for the AMD Radeon RX 9070 XT and the NVIDIA B200 SXM6?

A: The AMD Radeon RX 9070 XT has an average benchmark score of 13543 across all recorded tests. The NVIDIA B200 SXM6 has no recorded benchmark scores in the database, resulting in an average score of 0.

Q: How do the architecture nodes compare between these two GPUs?

A: The AMD Radeon RX 9070 XT uses a 4 nm process at TSMC, while the NVIDIA B200 SXM6 uses a 5 nm process, also at TSMC. The AMD chip packs 53,900 million transistors on a 357 mm² die, while the NVIDIA chip contains 208,000 million transistors on a much larger 1628 mm² die.

Q: What are the memory configurations of each card?

A: The RX 9070 XT has 16 GB of GDDR6 memory on a 256-bit bus with 644.6 GB/s bandwidth. The B200 SXM6 has 180 GB of HBM3e memory on an 8192-bit bus with 8.19 TB/s bandwidth.

Q: Which GPU has a higher FP32 compute throughput?

A: The NVIDIA B200 SXM6 delivers 69.34 TFLOPS of FP32 performance, which is higher than the 48.66 TFLOPS from the AMD Radeon RX 9070 XT.

Q: What is the TDP of each card?

A: The AMD Radeon RX 9070 XT has a TDP of 304 W, while the NVIDIA B200 SXM6 has a TDP of 1000 W. The suggested PSU ratings are 700 W for the AMD card and 1400 W for the NVIDIA card.

Q: Does the B200 SXM6 support DirectX or Vulkan?

A: No. The NVIDIA B200 SXM6 lists DirectX, OpenGL, and Vulkan as N/A. The AMD Radeon RX 9070 XT supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Architecture Differences

The two GPUs represent fundamentally different design philosophies. The AMD Radeon RX 9070 XT is built on the RDNA 4.0 architecture, belongs to the Navi IV (RX 9000) generation, and uses the Navi 48 chip. The NVIDIA B200 SXM6 uses the Blackwell architecture with the GB100 chip and belongs to the Server Blackwell (Bxx) generation. The AMD part is a client graphics product, while the NVIDIA part is a server accelerator module.

Fabrication details show TSMC producing both chips, but at different nodes. The AMD chip uses 4 nm technology, while the NVIDIA chip uses 5 nm. Transistor counts differ massively: 53,900 million for AMD versus 208,000 million for NVIDIA. Die size also diverges sharply, with the AMD die at 357 mm² versus 1628 mm² for NVIDIA. Transistor density favors the AMD chip at 151.0M per mm², compared to 127.8M per mm² for NVIDIA, indicating the 4 nm process packs more transistors per area.

Clock behavior reveals a striking difference in operating strategy. The RX 9070 XT has a base clock of 1660 MHz, a boost clock of 2970 MHz, and a game clock of 2400 MHz. The B200 SXM6 has an extremely low base clock of 120 MHz but a boost clock of 1830 MHz. This suggests the NVIDIA part idles at very low frequencies and boosts when needed, typical of a high-power server component designed for burst workloads.

Memory architecture differs completely. The AMD card uses 16 GB of GDDR6 with a 256-bit bus and 644.6 GB/s bandwidth. The NVIDIA card uses 180 GB of HBM3e with an 8192-bit bus and 8.19 TB/s bandwidth. The memory clock figures also differ: the AMD memory runs at 2518 MHz (20.1 Gbps effective), while the NVIDIA memory runs at 2000 MHz (8 Gbps effective).

Compute resources show NVIDIA's advantage in raw scale. The B200 SXM6 has 18,944 shading units, 592 TMUs, and 592 tensor cores. The RX 9070 XT has 4,096 shading units, 256 TMUs, 128 ROPs, and 64 ray tracing cores. The NVIDIA chip does not list ray tracing cores or ROPs in the expected categories; it lists 24 ROPs. The AMD chip has no tensor cores listed.

The NVIDIA B200 SXM6 uses an SXM Module form factor, has no display outputs, and lists no power connectors. The AMD card is dual-slot, uses 2x 8-pin power connectors, and has 1x HDMI 2.1b plus 3x DisplayPort 2.1a outputs. Interface support also differs: AMD uses PCIe 5.0 x16, while NVIDIA uses PCIe 6.0 x16.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries for these two cards. The AMD Radeon RX 9070 XT has a full set of ten individual benchmark scores, while the NVIDIA B200 SXM6 has zero recorded benchmark scores. This absence of comparative data means the head-to-head comparison must rely on the specification-level metrics recorded in the database.

The AMD card's individual benchmark scores show a wide spread. The highest recorded score is the Geekbench Vulkan result at 65,879, followed by the 3DMark Steel Nomad DX12 score at 7,260. The PassMark G3D score is 26,795, and the Geekbench OpenCL score is 17,428. The PassMark GPU Compute score is 15,864. Lower scores appear in the PassMark legacy tests: DirectX 10 at 154, DirectX 11 at 292, DirectX 12 at 78, and DirectX 9 at 353. The PassMark G2D score is 1,328.

The average benchmark score of 13,543 for the AMD card places it in the 55th percentile of all GPUs in the database. The nearest rivals are all older or lower-tier parts: the AMD Radeon HD 7770M has an average score of 13,536 with a delta of 0.1%, the NVIDIA GeForce GTX 570 has 13,515 with a delta of 0.2%, the NVIDIA P106-090 has 13,470 with a delta of 0.5%, and the AMD Radeon Pro 555 has 13,407 with a delta of 1%. These tiny deltas indicate the RX 9070 XT's average score sits very close to these older products, which is notable given the architectural generational gap.

The NVIDIA B200 SXM6 has no recorded benchmarks, an average score of 0, and sits in the 50th percentile by default. Its nearest rival list is empty. This means the database cannot confirm any real-world performance for the B200 SXM6, and the comparison between the two cards in terms of measured benchmarks is incomplete.

Pixel and texture rates from the specification data offer a partial comparison. The AMD card achieves a pixel rate of 380.2 GPixel/s and a texture rate of 760.3 GTexel/s. The NVIDIA card achieves a pixel rate of 43.92 GPixel/s and a texture rate of 1,083.4 GTexel/s. The AMD card is far ahead in pixel throughput, while the NVIDIA card leads in texture throughput.

FP16 performance mirrors FP32 on both cards, with each listed as 1:1. The AMD card delivers 48.66 TFLOPS in both FP16 and FP32, while the NVIDIA card delivers 69.34 TFLOPS in both.

The Verdict

The recorded data shows two products with almost no overlap in purpose. The AMD Radeon RX 9070 XT is a client GPU with a complete set of graphics APIs, display outputs, and consumer-oriented features. It was released on 2025-03-05 and has a launch MSRP of 599 USD. The NVIDIA B200 SXM6 is a server accelerator with no display outputs, no graphics API support, and a launch MSRP of 34,999 USD. It was released on 2024-10-31.

In the only directly comparable metrics, the NVIDIA part wins on raw compute: FP32 performance is 69.34 TFLOPS versus 48.66 TFLOPS, a lead of roughly 42% over the AMD part. The NVIDIA part also wins on memory bandwidth, texture rate, and memory capacity. The AMD part wins on pixel rate, clock speeds, transistor density, and graphics API compatibility.

The absence of benchmark data for the B200 SXM6 means the database cannot validate its real-world performance. The AMD card has a large body of measured scores, but its average sits at the 55th percentile, right next to much older parts. The RX 9070 XT's individual scores vary wildly, from 78 in PassMark DirectX 12 to 65,879 in Geekbench Vulkan, which suggests its measured performance depends heavily on the workload and API.

For a user looking for a graphics card with display outputs, API support, and a conventional dual-slot form factor, the RX 9070 XT is the only viable option in this pair. For a user looking for a server accelerator with massive memory capacity and high FP32 throughput, the B200 SXM6 is the designated product. The data does not support recommending either card for the other's role.

Specification Differences

The two cards differ in nearly every recorded specification field.

Process and die: 4 nm for AMD versus 5 nm for NVIDIA. Transistors: 53,900 million versus 208,000 million. Die size: 357 mm² versus 1628 mm². Transistor density: 151.0M per mm² versus 127.8M per mm².

Clocks: AMD base 1660 MHz, boost 2970 MHz, game 2400 MHz. NVIDIA base 120 MHz, boost 1830 MHz, no game clock listed. Memory clocks: AMD 2518 MHz (20.1 Gbps effective), NVIDIA 2000 MHz (8 Gbps effective).

Memory: AMD has 16 GB GDDR6 on a 256-bit bus with 644.6 GB/s bandwidth. NVIDIA has 180 GB HBM3e on an 8192-bit bus with 8.19 TB/s bandwidth.

Compute units: AMD has 4,096 shading units, 256 TMUs, 128 ROPs, 64 ray tracing cores, and no tensor cores. NVIDIA has 18,944 shading units, 592 TMUs, 24 ROPs, no ray tracing cores listed, and 592 tensor cores.

Rates: AMD pixel rate 380.2 GPixel/s, texture rate 760.3 GTexel/s. NVIDIA pixel rate 43.92 GPixel/s, texture rate 1,083.4 GTexel/s. FP32 and FP16: AMD 48.66 TFLOPS each, NVIDIA 69.34 TFLOPS each.

Power and cooling: AMD TDP 304 W, dual-slot, 2x 8-pin connectors, suggested PSU 700 W. NVIDIA TDP 1000 W, SXM Module, no power connectors listed, suggested PSU 1400 W.

Interface and outputs: AMD PCIe 5.0 x16, 1x HDMI 2.1b, 3x DisplayPort 2.1a. NVIDIA PCIe 6.0 x16, no display outputs.

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

Release and status: AMD released 2025-03-05, predecessor Navi III, no successor listed, production status Active. NVIDIA released 2024-10-31, predecessor Server Hopper, successor Server Rubin, production status Active.

Where Each One Wins

The AMD Radeon RX 9070 XT wins in scenarios that require graphics output and API compatibility. It has display outputs, supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. Its pixel rate of 380.2 GPixel/s is far ahead of the NVIDIA part. Its boost clock of 2970 MHz is the highest clock speed recorded for either card. The lower TDP of 304 W and the dual-slot form factor make it suitable for conventional systems with a 700 W suggested PSU. It is the only card in this pair with any measured benchmark scores, so any workload that relies on the database's benchmark evidence favors the AMD card by default.

The NVIDIA B200 SXM6 wins in raw compute and memory capacity. Its FP32 throughput of 69.34 TFLOPS exceeds the AMD card by roughly 42%. Its texture rate of 1,083.4 GTexel/s is higher. Its 180 GB of HBM3e memory with 8.19 TB/s bandwidth dwarfs the AMD card's 16 GB and 644.6 GB/s. The 8192-bit memory bus is 32 times wider than the AMD card's 256-bit bus. The 592 tensor cores give it a capability the AMD card does not list at all. The PCIe 6.0 x16 interface is a generation ahead of the AMD card's PCIe 5.0 x16. The SXM Module form factor indicates it is designed for server integration rather than desktop use.

The data also shows some neutral or ambiguous results. The AMD card has a higher transistor density, indicating more efficient use of silicon area. The NVIDIA card has a much larger die overall. The AMD card's average benchmark score of 13,543 places it at the 55th percentile, while the NVIDIA card has no percentile data beyond the default 50th. The AMD card's nearest rivals are all within 1% of its average score, which suggests its measured performance is not dramatically above those older parts despite the newer architecture.