GEFORCE

NVIDIA Tesla K20m

NVIDIA graphics card specifications and benchmark scores

5 GB
VRAM
MHz Boost
225W
TDP
320
Bus Width

NVIDIA Tesla K20m Specifications

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Tesla K20m GPU Core

Shader units and compute resources

The NVIDIA Tesla K20m 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
2,496
Shaders
2,496
TMUs
208
ROPs
40
⏱️

Tesla K20m Clock Speeds

GPU and memory frequencies

Clock speeds directly impact the Tesla K20m'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 K20m by NVIDIA dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.

GPU Clock
706 MHz
Memory Clock
1300 MHz 5.2 Gbps effective
GDDR GDDR 6X 6X

NVIDIA's Tesla K20m Memory

VRAM capacity and bandwidth

VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The Tesla K20m'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
5 GB
VRAM
5,120 MB
Memory Type
GDDR5
VRAM Type
GDDR5
Memory Bus
320 bit
Bus Width
320-bit
Bandwidth
208.0 GB/s
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Tesla K20m by NVIDIA Cache

On-chip cache hierarchy

On-chip cache provides ultra-fast data access for the Tesla K20m, 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
1280 KB
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Tesla K20m Theoretical Performance

Compute and fill rates

Theoretical performance metrics provide a baseline for comparing the NVIDIA Tesla K20m 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)
3.524 TFLOPS
FP64 (Double)
1,174.8 GFLOPS (1:3)
Pixel Rate
36.71 GPixel/s
Texture Rate
146.8 GTexel/s
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Kepler Architecture & Process

Manufacturing and design details

The NVIDIA Tesla K20m 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 K20m will perform in GPU benchmarks compared to previous generations.

Architecture
Kepler
GPU Name
GK110
Process Node
28 nm
Foundry
TSMC
Transistors
7,080 million
Die Size
561 mm²
Density
12.6M / mm²
🔌

NVIDIA's Tesla K20m Power & Thermal

TDP and power requirements

Power specifications for the NVIDIA Tesla K20m 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 K20m to maintain boost clocks without throttling.

TDP
225 W
TDP
225W
Power Connectors
1x 6-pin + 1x 8-pin
Suggested PSU
550 W
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Tesla K20m by NVIDIA Physical & Connectivity

Dimensions and outputs

Physical dimensions of the NVIDIA Tesla K20m 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 2.0 x16
Display Outputs
No outputs
Display Outputs
No outputs
🎮

NVIDIA API Support

Graphics and compute APIs

API support determines which games and applications can fully utilize the NVIDIA Tesla K20m. 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_0)
DirectX
12 (11_0)
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 K20m Product Information

Release and pricing details

The NVIDIA Tesla K20m 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 K20m 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
Jan 2013
Launch Price
3,199 USD
Production
End-of-life
Predecessor
Tesla Fermi
Successor
Tesla Maxwell

Tesla K20m Benchmark Scores

geekbench_openclSource

Geekbench OpenCL tests GPU compute performance using the cross-platform OpenCL API. This shows how NVIDIA Tesla K20m handles parallel computing tasks like video encoding and scientific simulations. OpenCL is widely supported across different GPU vendors and platforms. Higher scores benefit applications that leverage GPU acceleration for non-graphics workloads.

geekbench_opencl #300 of 582
16,085
4%
Max: 380,114
Compare with other GPUs

geekbench_vulkanSource

Geekbench Vulkan tests GPU compute using the modern low-overhead Vulkan API. This shows how NVIDIA Tesla K20m performs with next-generation graphics and compute workloads.

geekbench_vulkan #244 of 386
21,936
6%
Max: 379,571

About NVIDIA Tesla K20m

The NVIDIA Tesla K20m, built on the 28 nm Kepler architecture, delivers serious compute muscle with 5 GB of GDDR5 memory and a robust 225 W TDP, making it a powerhouse for GPU-accelerated workloads. Leveraging full CUDA and OpenCL support, this card excels in parallel processing tasks, ideal for simulation-heavy environments and scientific computing where raw throughput matters. Gamers diving into mod development or real-time rendering will appreciate its PCIe 2.0 x16 interface and high memory bandwidth, which streamline data flow for complex assets. While not designed for gaming, the Tesla K20m’s compute prowess translates into rapid video editing performance when used in render farms or professional post-production pipelines. Certified for enterprise and workstation builds, it integrates seamlessly into systems requiring reliability and sustained performance under load. The Tesla K20m was launched at $3,199 in early 2013, targeting high-end workstations over consumer rigs. Benchmark results back its muscle scoring 21,936 in Geekbench Vulkan and 16,085 in OpenCL showcasing its dominance in API-heavy compute scenarios. Even by modern standards, this card holds relevance for technical users leveraging GPU compute for rendering or machine learning preprocessing.

The AMD Equivalent of Tesla K20m

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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