AMD Radeon RX 7800 XT vs NVIDIA B200 SXM6 Comparison

Head-to-Head Benchmarks

The recorded data shows no direct head-to-head benchmark results between the AMD Radeon RX 7800 XT and the NVIDIA B200 SXM6. The database contains benchmark entries for the RX 7800 XT only, with ten recorded tests, while the B200 SXM6 has no benchmark scores listed. This absence of overlapping measurements means a conventional side-by-side comparison of frame rates or compute scores is not possible from the available data.

What can be compared is the RX 7800 XT's absolute benchmark performance against the database-wide distribution. The RX 7800 XT sits at the 51st percentile among all GPUs, with an average benchmark score of 11,627. Its nearest rivals in the database are the NVIDIA GeForce GTX 1660 (average score 11,680, delta of -0.5%), the AMD Radeon Pro 5500M (11,528, delta 0.9%), the NVIDIA Tesla K20c (11,479, delta 1.3%), and the AMD Radeon RX 6500 XT (11,842, delta -1.8%). The RX 7800 XT trails the GTX 1660 by 0.5% and the RX 6500 XT by 1.8%, while leading the Pro 5500M by 0.9% and the Tesla K20c by 1.3%. These deltas are all within roughly two percentage points, indicating that the RX 7800 XT's average score places it in a tightly packed cluster of mid-range performers in the database.

Breaking down the RX 7800 XT's individual test scores, the strongest result appears in Geekbench Vulkan with 54,228 points, followed by Passmark G3D at 24,176 and Geekbench OpenCL at 18,290. The Passmark GPU Compute test returns 13,473. Lower scores appear in the Passmark DirectX tests: DirectX 11 at 249, DirectX 9 at 304, DirectX 10 at 121, and DirectX 12 at 93. The Passmark G2D score is 1,177. The 3DMark Steel Nomad DX12 test yields 4,157 points.

The B200 SXM6, by contrast, has no benchmark scores in the database, and its percentile versus all GPUs is 50, which reflects a neutral position due to the absence of measured results rather than a tested performance level. Its average benchmark score is listed as 0, again a placeholder for missing data.

The Verdict

The data supports a clear distinction: the AMD Radeon RX 7800 XT is a consumer graphics card with a full suite of recorded benchmark results, while the NVIDIA B200 SXM6 is a server accelerator with no recorded benchmark scores in the database. For any user relying on the database's measured performance metrics, the RX 7800 XT is the only one of the two with verifiable test results. The B200 SXM6's 50th percentile and zero average score do not indicate weak performance; they indicate an absence of data.

From the available measurements, the RX 7800 XT delivers a balanced profile across API-specific tests, with its Vulkan score (54,228) far exceeding its OpenCL score (18,290), suggesting strong graphics-oriented compute under Vulkan. Its Passmark G3D score of 24,176 positions it within the mid-range cluster of its nearest rivals, all of which are within 1.8% of its average. The B200 SXM6, with its massive memory capacity of 180 GB and 8.19 TB/s bandwidth, is built for a different workload class, but the database does not provide scores to quantify that advantage.

Users requiring measured graphics benchmarks should consider the RX 7800 XT, as its results are documented and its percentile rank is established. Users evaluating the B200 SXM6 must rely on its specification sheet alone, since no benchmark data exists to confirm or refute its performance claims.

Architecture Differences

The two chips diverge fundamentally in their underlying designs. The RX 7800 XT uses the Navi 32 chip built on RDNA 3.0 architecture, with the codename Wheat Nas and a generation label of Navi III (RX 7000). The B200 SXM6 uses the GB100 chip built on Blackwell architecture, with a generation label of Server Blackwell (Bxx). Both are fabricated on a 5 nm process at TSMC, but the transistor counts differ dramatically: the RX 7800 XT packs 28,100 million transistors on a 346 mm² die, while the B200 SXM6 packs 208,000 million transistors on a 1,628 mm² die. This yields transistor densities of 81.2M per mm² for the RX 7800 XT and 127.8M per mm² for the B200 SXM6, meaning the B200 packs roughly 57% more transistors per square millimeter despite the same process node.

The RX 7800 XT includes 60 ray tracing cores and no dedicated tensor cores, while the B200 SXM6 has 592 tensor cores and no listed ray tracing cores. The shading unit counts differ as well: the RX 7800 XT has 3,840 shading units, 240 texture mapping units, and 96 ROPs. The B200 SXM6 has 18,944 shading units, 592 texture mapping units, and only 24 ROPs. This ROP disparity is notable: the RX 7800 XT has four times the ROP count, which influences pixel throughput, while the B200's much larger shading unit count favors compute-heavy workloads.

Clock behavior also contrasts sharply. The RX 7800 XT has a base clock of 1,295 MHz, a boost clock of 2,430 MHz, and a game clock of 2,124 MHz. The B200 SXM6 has a base clock of just 120 MHz and a boost clock of 1,830 MHz. The RX 7800 XT's higher clocks and lower transistor count point to a design optimized for consumer rendering, while the B200's lower base clock and enormous transistor count indicate a power-constrained server part with high parallel throughput.

Specification Differences

The memory subsystems are vastly different. The RX 7800 XT comes with 16 GB of GDDR6 memory on a 256-bit bus, delivering 624.1 GB/s of bandwidth, with memory clocked at 2,438 MHz (19.5 Gbps effective). The B200 SXM6 comes with 180 GB of HBM3e memory on an 8,192-bit bus, delivering 8.19 TB/s of bandwidth, with memory clocked at 2,000 MHz (8 Gbps effective). The B200 offers over 11 times the memory capacity and over 13 times the bandwidth.

Compute throughput numbers differ as well. The RX 7800 XT achieves 37.32 TFLOPS for both FP32 and FP16 (1:1 ratio), with a pixel rate of 233.3 GPixel/s and a texture rate of 583.2 GTexel/s. The B200 SXM6 achieves 69.34 TFLOPS for both FP32 and FP16 (1:1 ratio), with a pixel rate of 43.92 GPixel/s and a texture rate of 1,083.4 GTexel/s. The B200 has about 1.86 times the FP32 throughput and 1.86 times the texture rate, but only about 19% of the pixel rate.

Power and physical specifications also diverge. The RX 7800 XT has a TDP of 263 W, a dual-slot form factor, two 8-pin power connectors, and a suggested PSU rating of 600 W. The B200 SXM6 has a TDP of 1,000 W, an SXM Module form factor, no listed power connectors, and a suggested PSU rating of 1,400 W. The RX 7800 XT uses a PCIe 4.0 x16 interface and offers display outputs (1x HDMI 2.1a, 3x DisplayPort 2.1). The B200 SXM6 uses a PCIe 6.0 x16 interface and has no display outputs. The RX 7800 XT supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4; the B200 SXM6 lists N/A for all three APIs. The RX 7800 XT measures 267 mm in length, 111 mm in height, and 50 mm in width; the B200 SXM6 has no dimensions listed.

FAQ

Q: Which GPU has a higher average benchmark score in the database?

A: The AMD Radeon RX 7800 XT has an average benchmark score of 11,627, while the NVIDIA B200 SXM6 has an average score of 0 due to no recorded benchmarks.

Q: What is the memory capacity difference between the two?

A: The RX 7800 XT has 16 GB of GDDR6 memory, while the B200 SXM6 has 180 GB of HBM3e memory.

Q: Which GPU has more shading units?

A: The B200 SXM6 has 18,944 shading units, compared to the RX 7800 XT's 3,840 shading units.

Q: Does the B200 SXM6 support DirectX 12?

A: The database lists DirectX as N/A for the B200 SXM6, while the RX 7800 XT supports DirectX 12 Ultimate (12_2).

Q: What is the TDP of each GPU?

A: The RX 7800 XT has a TDP of 263 W, and the B200 SXM6 has a TDP of 1,000 W.

Q: Which GPU has display outputs?

A: The RX 7800 XT has 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs. The B200 SXM6 has no display outputs.

Where Each One Wins

The AMD Radeon RX 7800 XT wins in every category where benchmark measurements exist. Its recorded scores across 3DMark Steel Nomad DX12, Geekbench OpenCL, Geekbench Vulkan, and multiple Passmark tests provide quantifiable performance data, which the B200 SXM6 entirely lacks. The RX 7800 XT also wins on pixel rate (233.3 GPixel/s versus 43.92 GPixel/s), ROP count (96 versus 24), display connectivity, API support, and physical dimensions that fit a standard dual-slot consumer card. Its lower TDP of 263 W and suggested PSU of 600 W make it deployable in conventional desktop systems.

The NVIDIA B200 SXM6 wins on raw compute specifications. It has 18,944 shading units versus 3,840, 592 tensor cores versus none, 592 texture mapping units versus 240, and higher FP32 and FP16 throughput at 69.34 TFLOPS versus 37.32 TFLOPS. Its texture rate of 1,083.4 GTexel/s nearly doubles the RX 7800 XT's 583.2 GTexel/s. The B200's memory subsystem is overwhelmingly larger: 180 GB versus 16 GB, with 8.19 TB/s bandwidth versus 624.1 GB/s, on a 8,192-bit bus versus 256-bit. Its transistor count of 208,000 million dwarfs the RX 7800 XT's 28,100 million, and its die size of 1,628 mm² is nearly five times larger. The B200 also uses a PCIe 6.0 x16 interface versus PCIe 4.0 x16.

For rendering workloads that rely on pixel throughput and consumer API support, the RX 7800 XT is the only viable option from the recorded data. For compute workloads that require massive memory capacity, tensor core acceleration, and peak FP32/FP16 throughput, the B200 SXM6's specifications indicate a purpose-built server accelerator, but its absence of benchmark scores means the database cannot confirm real-world performance. The choice between the two depends entirely on whether the workload matches the RX 7800 XT's measured graphics capabilities or the B200 SXM6's theoretical compute ceiling.