GEFORCE

NVIDIA Tesla K40t

NVIDIA graphics card specifications and benchmark scores

12 GB
VRAM
876
MHz Boost
245W
TDP
384
Bus Width

NVIDIA Tesla K40t Specifications

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Tesla K40t GPU Core

Shader units and compute resources

The NVIDIA Tesla K40t 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
2,880
Shaders
2,880
TMUs
240
ROPs
48
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Tesla K40t Clock Speeds

GPU and memory frequencies

Clock speeds directly impact the Tesla K40t'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 Tesla K40t by NVIDIA dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.

Base Clock
745 MHz
Base Clock
745 MHz
Boost Clock
876 MHz
Boost Clock
876 MHz
Memory Clock
1502 MHz 6 Gbps effective
GDDR GDDR 6X 6X

NVIDIA's Tesla K40t Memory

VRAM capacity and bandwidth

VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The Tesla K40t'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
12 GB
VRAM
12,288 MB
Memory Type
GDDR5
VRAM Type
GDDR5
Memory Bus
384 bit
Bus Width
384-bit
Bandwidth
288.4 GB/s
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Tesla K40t by NVIDIA Cache

On-chip cache hierarchy

On-chip cache provides ultra-fast data access for the Tesla K40t, 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
16 KB (per SMX)
L2 Cache
1536 KB
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Tesla K40t Theoretical Performance

Compute and fill rates

Theoretical performance metrics provide a baseline for comparing the NVIDIA Tesla K40t 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)
5.046 TFLOPS
FP64 (Double)
1.682 TFLOPS (1:3)
Pixel Rate
52.56 GPixel/s
Texture Rate
210.2 GTexel/s
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Kepler Architecture & Process

Manufacturing and design details

The NVIDIA Tesla K40t is built on NVIDIA's Kepler 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 Tesla K40t will perform in GPU benchmarks compared to previous generations.

Architecture
Kepler
GPU Name
GK110B
Process Node
28 nm
Foundry
TSMC
Transistors
7,080 million
Die Size
561 mm²
Density
12.6M / mm²
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NVIDIA's Tesla K40t Power & Thermal

TDP and power requirements

Power specifications for the NVIDIA Tesla K40t 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 Tesla K40t to maintain boost clocks without throttling.

TDP
245 W
TDP
245W
Suggested PSU
550 W
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Tesla K40t by NVIDIA Physical & Connectivity

Dimensions and outputs

Physical dimensions of the NVIDIA Tesla K40t 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
Dual-slot
Length
267 mm 10.5 inches
Bus Interface
PCIe 3.0 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 Tesla K40t. 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.

DirectX
12 (11_1)
DirectX
12 (11_1)
OpenGL
4.6
OpenGL
4.6
Vulkan
1.2.175
Vulkan
1.2.175
OpenCL
3.0
CUDA
3.5
Shader Model
6.5 (5.1)
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Tesla K40t Product Information

Release and pricing details

The NVIDIA Tesla K40t 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 Tesla K40t 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
Nov 2013
Launch Price
7,699 USD
Production
End-of-life
Predecessor
Tesla Fermi
Successor
Tesla Maxwell

Tesla K40t Benchmark Scores

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No benchmark data available for this GPU.

About NVIDIA Tesla K40t

NVIDIA Tesla K40t: Engineering Precision for Professional Workloads

The NVIDIA Tesla K40t, manufactured by NVIDIA, stands as a cornerstone of high-performance computing designed for demanding professional workloads. Released on November 22, 2013, this GPU targets applications in fields requiring substantial computational power, such as computational fluid dynamics, finite element analysis, and deep learning. With its 12 GB of GDDR5 memory, the K40t ensures efficient data handling for large datasets and complex simulations, minimizing bottlenecks in workflows that demand rapid memory access. Its Kepler architecture and 28 nm process technology deliver optimized energy efficiency while maintaining the raw compute capabilities essential for workstation-class tasks.

For 3D rendering and graphics-intensive applications, the Tesla K40t’s 745 MHz base clock and 876 MHz boost clock provide substantial real-time processing power, enabling smooth interaction with high-resolution 3D models and real-time rendering pipelines. The 12 GB VRAM capacity supports intricate scene complexity and texture loading, crucial for architects, engineers, and designers working with large-scale visualizations. GDDR5 memory’s high bandwidth enhances texture streaming and shading operations, ensuring that rendering workflows remain responsive even under demanding loads. This combination of memory capacity and speed positions the K40t as a reliable solution for professional 3D workflows.

Software compatibility further solidifies the Tesla K40t’s relevance in workstation environments. It supports industry-standard APIs such as CUDA, OpenCL, and OpenGL, ensuring seamless integration with leading simulation, design, and data analysis software ecosystems. Platforms like Autodesk, Siemens NX, and MATLAB leverage the K40t’s architecture to accelerate computational tasks, reducing runtime iterations and improving productivity. NVIDIA’s driver support for these applications is robust, with regular updates optimizing performance for evolving software environments. This compatibility, paired with its PCIe 3.0 x16 interface, ensures reliable connectivity and scalability within mixed-GPU workstation setups.

Workstation builds frequently incorporate the Tesla K40t due to its balance of compute power, memory bandwidth, and stability. Its 245 WW TDP is justified by its sustained performance in continuous rendering, modeling, or data processing tasks, making it ideal for creators who prioritize uninterrupted workflow. The interface’s PCIe 3.0 configuration ensures optimal data transfer rates between the GPU and CPU, minimizing latency in data-intensive applications. While its launch price was substantial, the Tesla K40t remains a valuable investment for professionals needing a dedicated hardware accelerator capable of handling multi-disciplinary workflows without compromising on reliability or performance.

The AMD Equivalent of Tesla K40t

Looking for a similar graphics card from AMD? The AMD Radeon RX 480 offers comparable performance and features in the AMD lineup.

AMD Radeon RX 480

AMD • 8 GB VRAM

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