Quadro K4000 vs Tesla K20c

Place in performance ranking	454	518
Place by popularity	not in top-100	not in top-100
Cost-Effectiveness Evaluation	1.44	1.58
Architecture	Kepler (2012−2018)	Kepler (2012−2018)
GPU code name	GK110	GK106
Market segment	Workstation	Workstation
Release date	12 November 2012 (11 years ago)	1 March 2013 (11 years ago)
Launch price (MSRP)	$3,199	$1,269
Current price	$591 (0.2x MSRP)	$330 (0.3x MSRP)

Cost-Effectiveness Evaluation

Performance to price ratio. The higher, the better.

Quadro K4000 has 10% better value for money than Tesla K20c.

Detailed Specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	2496	768
Core clock speed	706 MHz	810 MHz
Number of transistors	7,080 million	2,540 million
Manufacturing process technology	28 nm	28 nm
Power consumption (TDP)	225 Watt	80 Watt
Texture fill rate	146.8	51.84
Floating-point performance	3,524 gflops	1,244 gflops

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).

Interface	PCIe 2.0 x16	PCIe 2.0 x16
Length	267 mm	241 mm
Width	2-slot	1-slot
Supplementary power connectors	1x 6-pin + 1x 8-pin	1x 6-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 type	GDDR5	GDDR5
Maximum RAM amount	5 GB	3 GB
Memory bus width	320 Bit	192 Bit
Memory clock speed	5200 MHz	5616 MHz
Memory bandwidth	208.0 GB/s	134.8 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 Connectors

No outputs

1x DVI, 2x DisplayPort

API Compatibility

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

DirectX	12 (11_0)	12 (11_0)
Shader Model	5.1	5.1
OpenGL	4.6	4.6
OpenCL	1.2	1.2
Vulkan	1.1.126	+
CUDA	3.5	3.0

Synthetic benchmark performance

Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.

Combined synthetic benchmark score

This is our combined benchmark performance score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Tesla K20c 8.90
+26.6%

Quadro K4000 7.03

Tesla K20c outperforms Quadro K4000 by 27% based on our aggregated benchmark results.

Octane Render OctaneBench

This is a special benchmark measuring graphics card performance in OctaneRender, which is a realistic GPU rendering engine by OTOY Inc., available either as a standalone program, or as a plugin for 3DS Max, Cinema 4D and many other apps. It renders four different static scenes, then compares render times with a reference GPU which is currently GeForce GTX 980. This benchmark has nothing to do with gaming and is aimed at professional 3D graphics artists.

Benchmark coverage: 4%

Tesla K20c 60
+173%

Quadro K4000 22

Tesla K20c outperforms Quadro K4000 by 173% in Octane Render OctaneBench.