Quadro RTX 8000 vs Quadro K420

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Aggregate performance score

We've compared Quadro K420 and Quadro RTX 8000, covering specs and all relevant benchmarks.

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

RTX 8000 outperforms K420 by a whopping 2505% based on our aggregate benchmark results.

Primary details

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

Place in the ranking90660
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.081.88
Power efficiency3.2113.19
ArchitectureKepler (2012−2018)Turing (2018−2022)
GPU code nameGK107TU102
Market segmentWorkstationWorkstation
Release date22 July 2014 (10 years ago)13 August 2018 (6 years ago)
Launch price (MSRP)$96.67 $9,999

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

RTX 8000 has 2250% better value for money than Quadro K420.

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 cores1924608
Core clock speed876 MHz1395 MHz
Boost clock speedno data1770 MHz
Number of transistors1,270 million18,600 million
Manufacturing process technology28 nm12 nm
Power consumption (TDP)41 Watt260 Watt
Texture fill rate14.02509.8
Floating-point processing power0.3364 TFLOPS16.31 TFLOPS
ROPs1696
TMUs16288
Tensor Coresno data576
Ray Tracing Coresno data72

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
Length160 mm267 mm
Width1" (2.5 cm)2-slot
Supplementary power connectorsNone1x 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 type128 BitGDDR6
Maximum RAM amount1 GB/2 GB48 GB
Memory bus width128 Bit384 Bit
Memory clock speed891 MHz1750 MHz
Memory bandwidthUp to 29 GB/s672.0 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 DisplayPort, 1x USB Type-C
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_1)
Shader Model5.16.5
OpenGL4.54.6
OpenCL1.22.0
Vulkan1.1.1261.2.131
CUDA3.07.5

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 8000 50.01
+2505%

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 8000 19278
+2502%

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 1849
RTX 8000 147346
+7869%

GeekBench 5 Vulkan

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 Vulkan API by AMD & Khronos Group.

Quadro K420 1844
RTX 8000 122427
+6539%

GeekBench 5 CUDA

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 CUDA API by NVIDIA.

Quadro K420 1350
RTX 8000 144049
+10570%

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 50.01
Recency 22 July 2014 13 August 2018
Maximum RAM amount 1 GB/2 GB 48 GB
Chip lithography 28 nm 12 nm
Power consumption (TDP) 41 Watt 260 Watt

Quadro K420 has 534.1% lower power consumption.

RTX 8000, on the other hand, has a 2504.7% higher aggregate performance score, an age advantage of 4 years, a 4700% higher maximum VRAM amount, and a 133.3% more advanced lithography process.

The Quadro RTX 8000 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 Quadro RTX 8000
Quadro RTX 8000

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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3.6 465 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.