Radeon RX 7990 XTX vs Quadro K620

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Primary details

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

Place in the ranking597not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation2.61no data
Power efficiency8.82no data
ArchitectureMaxwell (2014−2017)RDNA 3.0 (2022−2024)
GPU code nameGM107Navi 31
Market segmentWorkstationDesktop
Release date22 July 2014 (10 years ago)2023 (1 year ago)
Launch price (MSRP)$189.89 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 cores3846144
Core clock speed1058 MHz2500 MHz
Boost clock speed1124 MHz3599 MHz
Number of transistors1,870 million57,700 million
Manufacturing process technology28 nm5 nm
Power consumption (TDP)41 Watt405 Watt
Texture fill rate26.981,382
Floating-point processing power0.8632 TFLOPS88.45 TFLOPS
ROPs16192
TMUs24384
Ray Tracing Coresno data96

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 x16
Length160 mm287 mm
Width1" (2.5 cm)3-slot
Supplementary power connectorsNone3x 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 amount2 GB24 GB
Memory bus width128 Bit384 Bit
Memory clock speed900 MHz3000 MHz
Memory bandwidthUp to 29 GB/s1.15 TB/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 DisplayPort1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C
Number of simultaneous displays4no data
HDMI-+

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
OpenCL1.22.2
Vulkan1.1.1261.3
CUDA5.0-

Pros & cons summary


Maximum RAM amount 2 GB 24 GB
Chip lithography 28 nm 5 nm
Power consumption (TDP) 41 Watt 405 Watt

Quadro K620 has 887.8% lower power consumption.

RX 7990 XTX, on the other hand, has a 1100% higher maximum VRAM amount, and a 460% more advanced lithography process.

We couldn't decide between Quadro K620 and Radeon RX 7990 XTX. We've got no test results to judge.

Be aware that Quadro K620 is a workstation graphics card while Radeon RX 7990 XTX is a desktop one.


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 K620
Quadro K620
AMD Radeon RX 7990 XTX
Radeon RX 7990 XTX

Comparisons with similar GPUs

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Community ratings

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3.7 634 votes

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4.2 404 votes

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Questions & comments

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