GEFORCE

NVIDIA Tesla K20Xm

NVIDIA graphics card specifications and benchmark scores

6 GB
VRAM
โ€”
MHz Boost
235W
TDP
384
Bus Width

NVIDIA Tesla K20Xm Specifications

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Tesla K20Xm GPU Core

Shader units and compute resources

The NVIDIA Tesla K20Xm 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
2,688
Shaders
2,688
TMUs
224
ROPs
48
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Tesla K20Xm Clock Speeds

GPU and memory frequencies

Clock speeds directly impact the Tesla K20Xm'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 K20Xm by NVIDIA dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.

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

NVIDIA's Tesla K20Xm Memory

VRAM capacity and bandwidth

VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The Tesla K20Xm'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
6 GB
VRAM
6,144 MB
Memory Type
GDDR5
VRAM Type
GDDR5
Memory Bus
384 bit
Bus Width
384-bit
Bandwidth
249.6 GB/s
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Tesla K20Xm by NVIDIA Cache

On-chip cache hierarchy

On-chip cache provides ultra-fast data access for the Tesla K20Xm, 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 K20Xm Theoretical Performance

Compute and fill rates

Theoretical performance metrics provide a baseline for comparing the NVIDIA Tesla K20Xm 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)
3.935 TFLOPS
FP64 (Double)
1,311.7 GFLOPS (1:3)
Pixel Rate
40.99 GPixel/s
Texture Rate
164.0 GTexel/s
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Kepler Architecture & Process

Manufacturing and design details

The NVIDIA Tesla K20Xm 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 K20Xm 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 mmยฒ
Density
12.6M / mmยฒ
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NVIDIA's Tesla K20Xm Power & Thermal

TDP and power requirements

Power specifications for the NVIDIA Tesla K20Xm 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 K20Xm to maintain boost clocks without throttling.

TDP
235 W
TDP
235W
Suggested PSU
550 W
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Tesla K20Xm by NVIDIA Physical & Connectivity

Dimensions and outputs

Physical dimensions of the NVIDIA Tesla K20Xm 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 K20Xm. 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 K20Xm Product Information

Release and pricing details

The NVIDIA Tesla K20Xm 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 K20Xm 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 2012
Launch Price
7,699 USD
Production
End-of-life
Predecessor
Tesla Fermi
Successor
Tesla Maxwell

Tesla K20Xm Benchmark Scores

geekbench_metalSource

Geekbench Metal tests GPU compute using Apple's Metal API. This shows how NVIDIA Tesla K20Xm performs in macOS and iOS applications that leverage GPU acceleration. Metal provides low-overhead access to Apple silicon GPUs.

geekbench_metal #100 of 147
8,035
4%
Max: 222,653

geekbench_openclSource

Geekbench OpenCL tests GPU compute performance using the cross-platform OpenCL API. This shows how NVIDIA Tesla K20Xm handles parallel computing tasks like video encoding and scientific simulations.

geekbench_opencl #291 of 582
17,058
4%
Max: 380,114
Compare with other GPUs

๐Ÿ† Top 5 Performers

About NVIDIA Tesla K20Xm

The NVIDIA Tesla K20Xm card is a formidable workhorse designed to propel demanding computational tasks into the realm of high performance, positioning itself as a cornerstone for data centers and scientific computing environments. With its robust 6 GB of GDDR5 memory and a Kepler architecture at its core, the Tesla K20Xm delivers exceptional OpenCL benchmark scores like 17,058 points, making it a leader in parallel processing capabilities for complex simulations and research applications. This card's 28 nm process technology, combined with a PCIe 3.0 x16 interface, ensures it seamlessly integrates within high-end server configurations, providing the bandwidth and efficiency needed to tackle intensive workloads without bottlenecks. For researchers and engineers seeking future-proof scalability, the Tesla K20Xm offers a compelling platform that not only meets current demands but can continue to evolve as computational needs grow, solidifying its place as a strategic investment for long-term applications. When evaluating the NVIDIA Tesla K20Xm card, its segment placement within the high-performance computing market becomes clear: itโ€™s engineered for professionals who demand unparalleled processing power in environments where reliability and speed are non-negotiable. The cardโ€™s 235 W TDP reflects its power efficiency for the performance it delivers, especially when paired with optimized cooling solutions in server farms or clusters. With a launch price of $7,699 USD, the Tesla K20Xm targets institutions and research facilities where the cost is justified by the return on investment through accelerated computational throughput and reduced processing time on large-scale projects. Its Metal benchmark score of 8,035 points further validates its versatility in supporting graphics-intensive applications alongside traditional compute tasks, making it a dual-edge tool for diverse workloads. Ultimately, the Tesla K20Xmโ€™s architecture and memory configuration make it a dependable choice for system administrators and scientists who prioritize sustained performance during extended operational periods. Investigating the system requirements for the NVIDIA Tesla K20Xm reveals a need for robust infrastructure to unlock its potential fully, including high-end power supplies, advanced cooling systems, and compatible motherboards with PCIe 3.0 slots. Such considerations ensure that the Tesla K20Xm can operate at peak efficiency without thermal throttling or bandwidth limitations, which could otherwise hinder performance in demanding scenarios. For those seeking future-proofing, the Tesla K20Xmโ€™s architecture is designed to accommodate software updates and new applications that may emerge over the years, offering a hedge against obsolescence in rapidly advancing fields. This cardโ€™s combination of raw computational power, memory capacity, and architectural design makes it a standout choice for enterprises or research groups where the margin between success and delay can depend on harnessing the full capabilities of the Tesla K20Xm within their systems.

The AMD Equivalent of Tesla K20Xm

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 โ€ข 8 GB VRAM

View Specs Compare

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