NVIDIA Quadro RTX 4000 vs ATI R423
Comparison of Quadro RTX 4000 and R423 architecture, market type and release date.
Place in performance rating
Value for money (0-100)
13 November 2018
Launch price (MSRP)
Quadro RTX 4000 and R423's general performance parameters such as number of shaders, GPU core clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Quadro RTX 4000 and R423's performance, but for precise assessment you have to consider its benchmark and gaming test results.
Core clock speed
Manufacturing process technology
Power consumption (TDP)
Texture fill rate
Compatibility, dimensions and requirements
Information on Quadro RTX 4000 and R423 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
PCIe 3.0 x16
Supplementary power connectors
Parameters of memory installed on Quadro RTX 4000 and R423: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors don't have dedicated memory and use a shared part of system RAM.
Maximum RAM amount
Memory bus width
Memory clock speed
Video outputs and ports
Types and number of video connectors present on Quadro RTX 4000 and R423. As a rule, this section is relevant only for desktop reference video cards, since for notebook ones the availability of certain video outputs depends on the laptop model.
3x DisplayPort, 1x USB Type-C
APIs supported by Quadro RTX 4000 and R423, sometimes including their particular versions.
12 Ultimate (12_1)
Advantages of NVIDIA Quadro RTX 4000
Finer manufacturing process technology (12 vs 130 nm)
Advantages of ATI R423
We are unaware of any advantages of ATI R423 over NVIDIA Quadro RTX 4000.
So, Quadro RTX 4000 or R423?
Technical City couldn't decide between NVIDIA Quadro RTX 4000 and ATI R423. We've got no test results to judge.
Be aware that Quadro RTX 4000 is a workstation card while R423 is a desktop one.
Should you still have questions on choice between Quadro RTX 4000 and R423, ask them in Comments section, and we shall answer.