GEFORCE

NVIDIA B300

NVIDIA graphics card specifications and benchmark scores

144 GB
VRAM
2032
MHz Boost
1400W
TDP
4096
Bus Width
๐Ÿค–Tensor Cores

NVIDIA B300 Specifications

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B300 GPU Core

Shader units and compute resources

The NVIDIA B300 GPU core specifications define its raw processing power for graphics and compute workloads. Shading units (also called CUDA cores, stream processors, or execution units depending on manufacturer) handle the parallel calculations required for rendering. TMUs (Texture Mapping Units) process texture data, while ROPs (Render Output Units) handle final pixel output. Higher shader counts generally translate to better GPU benchmark performance, especially in demanding games and 3D applications.

Shading Units
18,944
Shaders
18,944
TMUs
592
ROPs
24
SM Count
148
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B300 Clock Speeds

GPU and memory frequencies

Clock speeds directly impact the B300's performance in GPU benchmarks and real-world gaming. The base clock represents the minimum guaranteed frequency, while the boost clock indicates peak performance under optimal thermal conditions. Memory clock speed affects texture loading and frame buffer operations. The B300 by NVIDIA dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.

Base Clock
1665 MHz
Base Clock
1,665 MHz
Boost Clock
2032 MHz
Boost Clock
2,032 MHz
Memory Clock
2000 MHz 8 Gbps effective
GDDR GDDR 6X 6X

NVIDIA's B300 Memory

VRAM capacity and bandwidth

VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The B300's memory capacity determines how well it handles high-resolution textures and multiple displays. Memory bandwidth, measured in GB/s, affects how quickly data moves between the GPU and VRAM. Higher bandwidth improves performance in memory-intensive scenarios like 4K gaming. The memory bus width and type (GDDR6, GDDR6X, HBM) significantly influence overall GPU benchmark scores.

Memory Size
144 GB
VRAM
147,456 MB
Memory Type
HBM3e
VRAM Type
HBM3e
Memory Bus
4096 bit
Bus Width
4096-bit
Bandwidth
4.10 TB/s
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B300 by NVIDIA Cache

On-chip cache hierarchy

On-chip cache provides ultra-fast data access for the B300, reducing the need to fetch data from slower VRAM. L1 and L2 caches store frequently accessed data close to the compute units. AMD's Infinity Cache (L3) dramatically increases effective bandwidth, improving GPU benchmark performance without requiring wider memory buses. Larger cache sizes help maintain high frame rates in memory-bound scenarios and reduce power consumption by minimizing VRAM accesses.

L1 Cache
256 KB (per SM)
L2 Cache
50 MB
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B300 Theoretical Performance

Compute and fill rates

Theoretical performance metrics provide a baseline for comparing the NVIDIA B300 against other graphics cards. FP32 (single-precision) performance, measured in TFLOPS, indicates compute capability for gaming and general GPU workloads. FP64 (double-precision) matters for scientific computing. Pixel and texture fill rates determine how quickly the GPU can render complex scenes. While real-world GPU benchmark results depend on many factors, these specifications help predict relative performance levels.

FP32 (Float)
76.99 TFLOPS
FP64 (Double)
1,202.9 GFLOPS (1:64)
FP16 (Half)
1,231.8 TFLOPS (16:1)
Pixel Rate
48.77 GPixel/s
Texture Rate
1,202.9 GTexel/s
โœจ

B300 Ray Tracing & AI

Hardware acceleration features

The NVIDIA B300 includes dedicated hardware for ray tracing and AI acceleration. RT cores handle real-time ray tracing calculations for realistic lighting, reflections, and shadows in supported games. Tensor cores (NVIDIA) or XMX cores (Intel) accelerate AI workloads including DLSS, FSR, and XeSS upscaling technologies. These features enable higher visual quality without proportional performance costs, making the B300 capable of delivering both stunning graphics and smooth frame rates in modern titles.

Tensor Cores
592
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Blackwell Ultra Architecture & Process

Manufacturing and design details

The NVIDIA B300 is built on NVIDIA's Blackwell Ultra architecture, which defines how the GPU processes graphics and compute workloads. The manufacturing process node affects power efficiency, thermal characteristics, and maximum clock speeds. Smaller process nodes pack more transistors into the same die area, enabling higher performance per watt. Understanding the architecture helps predict how the B300 will perform in GPU benchmarks compared to previous generations.

Architecture
Blackwell Ultra
GPU Name
GB110
Process Node
5 nm
Foundry
TSMC
Transistors
104,000 million
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NVIDIA's B300 Power & Thermal

TDP and power requirements

Power specifications for the NVIDIA B300 determine PSU requirements and thermal management needs. TDP (Thermal Design Power) indicates the heat output under typical loads, guiding cooler selection. Power connector requirements ensure adequate power delivery for stable operation during demanding GPU benchmarks. The suggested PSU wattage accounts for the entire system, not just the graphics card. Efficient power delivery enables the B300 to maintain boost clocks without throttling.

TDP
1400 W
TDP
1400W
Suggested PSU
1800 W
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B300 by NVIDIA Physical & Connectivity

Dimensions and outputs

Physical dimensions of the NVIDIA B300 are critical for case compatibility. Card length, height, and slot width determine whether it fits in your chassis. The PCIe interface version affects bandwidth for communication with the CPU. Display outputs define monitor connectivity options, with modern cards supporting multiple high-resolution displays simultaneously. Verify these specifications against your case and motherboard before purchasing to ensure a proper fit.

Slot Width
SXM Module
Bus Interface
PCIe 5.0 x16
Display Outputs
No outputs
Display Outputs
No outputs
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NVIDIA API Support

Graphics and compute APIs

API support determines which games and applications can fully utilize the NVIDIA B300. DirectX 12 Ultimate enables advanced features like ray tracing and variable rate shading. Vulkan provides cross-platform graphics capabilities with low-level hardware access. OpenGL remains important for professional applications and older games. CUDA (NVIDIA) and OpenCL enable GPU compute for video editing, 3D rendering, and scientific applications. Higher API versions unlock newer graphical features in GPU benchmarks and games.

OpenCL
3.0
CUDA
10.3
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B300 Product Information

Release and pricing details

The NVIDIA B300 is manufactured by NVIDIA as part of their graphics card lineup. Release date and launch pricing provide context for comparing GPU benchmark results with competing products from the same era. Understanding the product lifecycle helps evaluate whether the B300 by NVIDIA represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.

Manufacturer
NVIDIA
Release Date
Sep 2025
Production
Active
Predecessor
Server Hopper
Successor
Server Rubin

B300 Benchmark Scores

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No benchmark data available for this GPU.

About NVIDIA B300

The NVIDIA B300 from NVIDIA represents a leap in high-performance computing, leveraging the Blackwell Ultra architecture with a 5 nm process to deliver unparalleled efficiency. Its 144 GB HBM3e VRAM ensures massive data throughput, making it ideal for 8K rendering and complex AI workloads. At 1665 MHz base clock and 2032 MHz boost clock, the B300 excels in demanding applications, while the PCIe 5.0 x16 interface maximizes bandwidth potential. The 1400 W TDP underscores its power requirements, demanding robust cooling solutions for sustained performance. NVIDIA's B300 is engineered for scenarios where raw processing power and memory capacity are non-negotiable, from real-time ray tracing to large-scale machine learning.

  1. Supports ultra-high resolutions with optimized frame rate stability
  2. Utilizes advanced rendering features for next-gen graphics fidelity
  3. Offers 144 GB of HBM3e VRAM for data-intensive tasks

The B300 GPU from NVIDIA redefines scalability in professional and gaming environments, combining a 5 nm node with Blackwell Ultraโ€™s architecture for precision. Its VRAM bandwidth and capacity enable seamless handling of 8K textures and massive datasets, while the 2032 MHz boost clock ensures peak performance under load. Cooling considerations are critical, given the 1400 W TDP, requiring liquid cooling or high-efficiency air systems. NVIDIAโ€™s B300 thrives in multi-tasking workstations, AI training rigs, and 4K/8K gaming setups. The B300 from NVIDIA sets a new standard for power and memory, addressing future-proofing needs in high-end computing.

  1. Requires advanced cooling to manage 1400 W thermal output
  2. Optimized for AI, 8K rendering, and real-time simulation
  3. Power delivery systems must match its 1400 W TDP demands

The AMD Equivalent of B300

Looking for a similar graphics card from AMD? The AMD Radeon RX 7700 offers comparable performance and features in the AMD lineup.

AMD Radeon RX 7700

AMD โ€ข 16 GB VRAM

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