NVIDIA started Quadro K420 sales 22 July 2014 at a recommended price of $96.67 . This is a Kepler architecture desktop card based on 28 nm manufacturing process and primarily aimed at designers. 1 GB/2 GB of 128-bit memory clocked at 1.78 GHz are supplied, and together with 128 Bit memory interface this creates a bandwidth of Up to 29 GB/s.

Compatibility-wise, this is 1-slot card attached via PCIe 2.0 x16 interface. Its manufacturer default version has a length of 160 mm. No additional power connector is required, and power consumption is at 41 Watt.

Primary details

Some basic facts about Quadro K420: architecture, market segment, release date etc.

Place in performance ranking	860
Place by popularity	not in top-100
Cost-effectiveness evaluation	0.08
Architecture	Kepler (2012−2018)
GPU code name	GK107
Market segment	Workstation
Release date	22 July 2014 (9 years ago)
Launch price (MSRP)	$96.67
Current price	$402 (4.2x MSRP)	of 168889 (A100 PCIe 80 GB)

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

Detailed specifications

Quadro K420's specs such as number of shaders, GPU base clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Quadro K420's performance, but for precise assessment you have to consider its benchmark and gaming test results.

Pipelines / CUDA cores	192	of 20480 (Data Center GPU Max NEXT)
Core clock speed	876 MHz	of 2610 (Radeon RX 6500 XT)
Number of transistors	1,270 million	of 14400 (GeForce GTX 1080 SLI Mobile)
Manufacturing process technology	28 nm	of 4 (H100 PCIe)
Power consumption (TDP)	41 Watt	of 2400 (Data Center GPU Max Subsystem)
Texture fill rate	14.02	of 969.9 (H100 SXM5 96 GB)
Floating-point performance	336.4 gflops	of 16384 (Radeon Pro Duo)

Form factor & compatibility

This section provides details about the physical dimensions of Quadro K420 and its compatibility with other computer components. This information is useful when selecting a computer configuration or upgrading an existing one. For desktop graphics cards, it includes details about the interface and bus (for motherboard compatibility) and additional power connectors (for power supply compatibility).

Interface	PCIe 2.0 x16
Length	160 mm
Width	1" (2.5 cm)
Supplementary power connectors	None

VRAM capacity and type

Parameters of memory installed on Quadro K420: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated memory and use a shared part of system RAM instead.

Memory type	128 Bit
Maximum RAM amount	1 GB/2 GB	of 192 (Radeon Instinct MI300X)
Memory bus width	128 Bit	of 8192 (Radeon Instinct MI250X)
Memory clock speed	1782 MHz	of 23000 (GeForce RTX 4080 SUPER)
Memory bandwidth	Up to 29 GB/s	of 3276 (Aldebaran)

Connectivity and outputs

Types and number of video connectors present on Quadro K420. As a rule, this section is relevant only for desktop reference graphics cards, since for notebook ones the availability of certain video outputs depends on the laptop model, while non-reference desktop models can (though not necessarily will) bear a different set of video ports.

Display Connectors	DVI-I DP
Number of simultaneous displays	4

Supported technologies

Technological solutions and APIs supported by Quadro K420. You'll probably need this information if you need some particular technology for your purposes.

3D Vision Pro	+
Mosaic	+
nView Desktop Management	+

API compatibility

APIs supported by Quadro K420, sometimes including their particular versions.

DirectX	12
Shader Model	5
OpenGL	4.5	of 4.6 (GeForce GTX 1080 Mobile)
OpenCL	1.2
Vulkan	+
CUDA	3.0

Benchmark performance

Synthetic benchmark performance of Quadro K420. 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.

Quadro K420 1.93

Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

Benchmark coverage: 25%

Quadro K420 745

GeekBench 5 OpenCL

Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses OpenCL API by Khronos Group.

Benchmark coverage: 9%

Quadro K420 1792

GeekBench 5 Vulkan

Benchmark coverage: 5%

Quadro K420 1841

GeekBench 5 CUDA

Benchmark coverage: 4%

Quadro K420 1350

Gaming performance

Let's see how good Quadro K420 is for gaming. Particular gaming benchmark results are measured in frames per second. Comparisons with game system requirements are included, but remember that sometimes official requirements may reflect reality inaccurately.