RTX A400 vs Quadro K420

VS

Aggregate performance score

We've compared Quadro K420 and RTX A400, covering specs and all relevant benchmarks.

Quadro K420
2014
1 GB/2 GB 128-bit, 41 Watt
1.92

RTX A400 outperforms K420 by a whopping 488% based on our aggregate benchmark results.

Primary details

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

Place in the ranking906420
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.08no data
Power efficiency3.2115.46
ArchitectureKepler (2012−2018)Ampere (2020−2024)
GPU code nameGK107GA107
Market segmentWorkstationWorkstation
Release date22 July 2014 (10 years ago)16 April 2024 (less than a year ago)
Launch price (MSRP)$96.67 no data

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 cores192768
Core clock speed876 MHz727 MHz
Boost clock speedno data1762 MHz
Number of transistors1,270 million8,700 million
Manufacturing process technology28 nm8 nm
Power consumption (TDP)41 Watt50 Watt
Texture fill rate14.0242.29
Floating-point processing power0.3364 TFLOPS2.706 TFLOPS
ROPs1616
TMUs1624
Tensor Coresno data24
Ray Tracing Coresno data6

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 4.0 x8
Length160 mm163 mm
Width1" (2.5 cm)1-slot
Supplementary power connectorsNoneNone

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 type128 BitGDDR6
Maximum RAM amount1 GB/2 GB4 GB
Memory bus width128 Bit64 Bit
Memory clock speed891 MHz1500 MHz
Memory bandwidthUp to 29 GB/s96 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, 1x DisplayPort4x mini-DisplayPort 1.4a
Number of simultaneous displays4no data

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

3D Vision Pro+no data
Mosaic+no data
nView Desktop Management+no data

API compatibility

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

DirectX1212 Ultimate (12_2)
Shader Model5.16.7
OpenGL4.54.6
OpenCL1.23.0
Vulkan1.1.1261.3
CUDA3.08.6

Synthetic benchmark performance

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


Combined synthetic benchmark score

This is our combined benchmark 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 1.92
RTX A400 11.28
+488%

  • Other tests
    • Passmark
    • GeekBench 5 OpenCL

Passmark

This is the most ubiquitous GPU benchmark. 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.

Quadro K420 741
RTX A400 4346
+487%

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.

Quadro K420 1848
RTX A400 22671
+1127%

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Pros & cons summary


Performance score 1.92 11.28
Recency 22 July 2014 16 April 2024
Maximum RAM amount 1 GB/2 GB 4 GB
Chip lithography 28 nm 8 nm
Power consumption (TDP) 41 Watt 50 Watt

Quadro K420 has 22% lower power consumption.

RTX A400, on the other hand, has a 487.5% higher aggregate performance score, an age advantage of 9 years, a 300% higher maximum VRAM amount, and a 250% more advanced lithography process.

The RTX A400 is our recommended choice as it beats the Quadro K420 in performance tests.


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 K420
Quadro K420
NVIDIA RTX A400
RTX A400

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

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


3.5
143 votes

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2.9
15 votes

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Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.