Tesla K20X vs Quadro FX 4800

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Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking823not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.04no data
Power efficiency1.17no data
ArchitectureTesla 2.0 (2007−2013)Kepler (2012−2018)
GPU code nameGT200BGK110
Market segmentWorkstationWorkstation
Release date11 November 2008 (16 years ago)12 November 2012 (12 years ago)
Launch price (MSRP)$1,799 $7,699

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores1922688
Core clock speed602 MHz732 MHz
Number of transistors1,400 million7,080 million
Manufacturing process technology55 nm28 nm
Power consumption (TDP)150 Watt235 Watt
Texture fill rate38.53164.0
Floating-point processing power0.4623 TFLOPS3.935 TFLOPS
ROPs2448
TMUs64224

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfacePCIe 2.0 x16PCIe 3.0 x16
Length267 mm267 mm
Width2-slot2-slot
Supplementary power connectors1x 6-pin1x 6-pin + 1x 8-pin

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR3GDDR5
Maximum RAM amount1536 MB6 GB
Memory bus width384 Bit384 Bit
Memory clock speed800 MHz1300 MHz
Memory bandwidth76.8 GB/s249.6 GB/s

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors1x DVI, 2x DisplayPort, 1x S-VideoNo outputs

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX11.1 (10_0)12 (11_0)
Shader Model4.05.1
OpenGL3.34.6
OpenCL1.11.2
VulkanN/A1.1.126
CUDA1.33.5

Pros & cons summary


Recency 11 November 2008 12 November 2012
Maximum RAM amount 1536 MB 6 GB
Chip lithography 55 nm 28 nm
Power consumption (TDP) 150 Watt 235 Watt

FX 4800 has 56.7% lower power consumption.

Tesla K20X, on the other hand, has an age advantage of 4 years, a 300% higher maximum VRAM amount, and a 96.4% more advanced lithography process.

We couldn't decide between Quadro FX 4800 and Tesla K20X. We've got no test results to judge.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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NVIDIA Quadro FX 4800
Quadro FX 4800
NVIDIA Tesla K20X
Tesla K20X

Comparisons with similar GPUs

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Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


4.2 62 votes

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3.2 51 vote

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Questions & comments

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