CPU Air Cooler Multi Review: DeepCool, CPS PCCooler and Sudokoo!

Today we’re comparing three mid to high-end CPU air coolers: DeepCool’s AK700 Digital, CPS PCCooler’s RZ700D, and the Sudokoo SK620V. All three target performance-focused systems, but take slightly different approaches in design and features. We’ll be testing thermals, noise, build quality, and installation on Ryzen 9800X3D-based system to see which comes out on top.

Timestamps:

00:00 Start
00:54 DeepCool AK700 Digital
05:20 Accessories
06:12 PC Cooler RZ700D
09:40 Accessories
10:32 Sudokoo SK620V
16:16 Accessories
17:19 Installation of the 3 coolers
18:30 LCD screens and software
19:02 Thermal And Noise Output – testing
22:54 James Closing Thoughts

DeepCool AK700 Digital WH: Available late February 2026 – £54.99 MSRP

• AI-Driven Cooling Control: Uses DeepCool's DeepCreative software AI algorithm to automatically adjust the fan speed curve based on real-time CPU load for balanced cooling and quiet operation.
• Quad-Segmented Digital Display: It features a High-end display that shows CPU temperature, usage, wattage, and frequency in real time, controllable via DeepCool software and connected through a USB 2.0 motherboard header.
• Advanced Thermal Design: AK700 Digital WH is equipped with seven copper heat pipes, a dense single-tower heatsink, and Core Touch Technology (CTT 2.0) for enhanced heat transfer and cooling performance.
• Quiet & Reliable Operation: Newly designed silent fan with hydraulic bearings, 0-RPM startup/stop, and Activate Clearing Tech (ACT) for automatic dust clearing, delivering smooth airflow with minimal noise.

Specifications

• Compatibility: Intel LGA1851/1700/1200/115X, AMD AM5/AM4
• Product Dimensions: 126 × 98 × 157 mm (L × W × H)
• Heatsink Dimensions: 124 × 76 × 151 mm (L × W × H)
• Net Weight: 1252 g
• Heat pipes: Ø6 mm × 7 pcs
• Fan Dimensions: 120 × 120 × 25 mm (L × W × H)
• Fan Speed: Up to 2700 ±10% RPM
• Fan Airflow: 77.23 CFM
• Fan Air Pressure: 5.13 mmAq
• Fan Noise: 0 / 28.8 / 36.0 dB(A)
• Fan Connector: 4-pin PWM
• Bearing Type: Hydro Bearing
• Fan Rated Voltage: 12 VDC
• Fan Rated Current: 0.35 A
• Fan Power Consumption: 4.2 W
• Display Module Rated Voltage: 5 VDC
• Display Module Rated Current: 0.13 A ±10%
• Display Module Power Consumption: 0.65 W
• Display Area: 29 × 39 mm

CPS PCCooler RZ700D: UK availability expected February 2026 – £59.99 MSRP

• 7-heatpipe thick single-tower design: Featuring next-generation Ø6 mm × 7 heatpipes and a 60 mm thick single tower fin stack for enhanced heat dissipation.
• Dual-fan configuration: Designed with speed-offset noise reduction, using a standard curved-blade fan and a mirrored reverse-blade fan to reduce high-frequency noise and resonance.
• High-performance Fans: With dual-ball bearing design delivering up to 79.8 CFM airflow and up to 4.4 mmH₂O static pressure for strong cooling efficiency.
• User-friendly and compatible design: RZ700D is equipped with a magnetic top cover, tidy no-buckle fin layout, copper-plated nickel reflow soldered base, and no RAM interference.

Specifications

• CPU Socket Compatibility: Intel LGA115X / 1200 / 1700 / 1851, AMD AM4 / AM5
• Product Dimensions: 122 × 111 × 159.5 mm (L × W × H)
• Heat pipes: Φ6 mm × 7 pcs
• Fans Included: 2 pcs
• Fan Dimensions: 120 × 120 × 25 mm
• Fan Bearing Type: Ball Bearing
• Fan Connector: 4-pin PWM
• Fan Speed: 500 ~ 2400 ±10% RPM (Normal Blade), 500 ~ 2250 ±10% RPM (Reverse Blade)
• Fan Airflow: 79.8 CFM (Normal Blade), 69.9 CFM (Reverse Blade)
• Fan Air Pressure: 4.4 mmH₂O (Normal Blade), 3.9 mmH₂O (Reverse Blade)
• Fan Noise: 15 ~ 35.9 dB(A) (Normal Blade), 15 ~ 33.7 dB(A) (Reverse Blade)
• Fan Rated Voltage: 12 VDC
• Fan Rated Current: 0.15 A (Normal Blade), 0.12 A (Reverse Blade)
• Fan Power Consumption: 1.8 W (Normal Blade),1.44 W (Reverse Blade)

Sudokoo SK620V: Available now from Amazon UK, priced at £86.99 HERE.

• Dual-tower cooling power: The SK620V uses a dense dual-tower heatsink with six heat pipes, purpose-built for AM5 CPUs to deliver strong thermal performance for high-load and overclocked systems.
• Built-in digital screen: A quad-segmented display shows real-time CPU temperature, usage, wattage, and frequency connected via USB 2.0 and controlled through Sudokoo’s MasterCraft software for clean, cable-light monitoring.
• Quiet, efficient airflow: Dual 120 mm fans with advanced 3-phase FOC motor control provide strong airflow while keeping noise low, topping out at ≤29.9 dB(A) under load.
• Smart compatibility design: Adjustable glide fan mounting improves RAM clearance, while the AM5 anti-bending corrector and sturdy mounting system ensure even pressure and easy installation.

Specifications

• Product Dimensions: 145 × 144 × 164 mm (L × W × H)
• Heatsink Dimensions: 125 × 115 × 153 mm (L × W × H)
• Net Weight: 1645 g
• Heatpipes: Ø6 mm × 6 pcs
• Fan Dimensions: 120 × 120 × 25 mm (L × W × H)
• Fan Speed: Up to 2000 ±10% RPM
• Fan Airflow: 56.46 CFM
• Fan Air Pressure: 2.93 mmAq
• Fan Noise: ≤29.9 dB(A)
• Fan Connector: 4-pin PWM
• Bearing Type: Fluid Dynamic Bearing
• Fan Rated Voltage: 12 VDC
• Fan Rated Current: 0.22 A
• Fan Power Consumption: 2.64 W
• Display Module Rated Voltage: 5 VDC
• Display Module Rated Current: 0.09 A ±10%
• Display Module Power Consumption: 0.45 W
• Display Area: 70.7  × 27.8 mm

Test System Specifications

• CPU: AMD Ryzen 7 9800X3D
• Motherboard: ASRock X870E Taichi Lite
• Memory: 32GB (2 x 16GB Modules) Kingston Fury DDR5-6000
• Graphics card: Gigabyte RTX 4070 Gaming OC
• Storage: 1TB Corsair MP600 Elite PCIe Gen4x4 NVME M.2 SSD
• Power Supply: Seasonic Prime TX-1600
• Chassis: Open Test Bench
• Thermal Compound: Arctic MX-6
• O/S: Windows 11 Version 24H2

Testing Methodology:

We are primarily focusing on the performance of each cooler at 100% fan speed and also when locked to 40dBA noise output. We will focus on cooling performance using a manual overclock with all-core frequency and VCORE locked to 5.2GHz/1.3v (AMD) and 5.5GHz/1.3v (Intel) and Precision Boost Overdrive performance.

• The test data is logged using HWINFO and the final 10 minutes of the data is calculated to find the average CPU temperature and CPU clock multiplier (AMD PBO Test) and then plotted in the charts.
• For testing, we use a 30-minute looped run of Cinebench R23 and record the steady-state CPU temperature at the end of the test. This ensures that the CPU has had ample time to warm up and reach a steady state under all of the coolers.
• The ambient is maintained at 19-21 degrees Celsius. Where there is variation beyond this temperature range, we add extra repeated tests to ensure consistency. However, this is well controlled now with A/C.
• We also test each cooler with at least two fresh installs (typically three) to mitigate the likelihood of poor mounting spoiling results.
• Ambient temperature and humidity are controlled via a mini split air conditioning system inside the test room. Ambient temperature is maintained between 22-23°C, Temperature delta figures are shown in the charts (ambient temperature is deducted from the measured component temperature).

Test Results:

Acoustics

Looking at noise output first, it's immediately clear there are some big differences between the coolers. The Sudokoo SK620V is the quietest at 43dBA max, making it clearly audible under load but still well behaved and unlikely to draw unwanted attention in a closed chassis. DeepCool’s AK700 Digital WH pushes things a touch more at 45dBA, where fan noise will be more noticeable during sustained workloads, though it remains within what most users would consider acceptable for a high-performance air cooler.

Unfortunately though, the CPS PCCooler RZ700D stands out for the wrong reasons, registering a much higher 53dBA – it's hard to ignore even at a reasonable distance.

Thermal Performance: AMD Ryzen 7 9800X3D

With the fans running at full speed, the thermal results are quite tightly spread, especially between the two single-tower 7 heat pipe coolers. The Sudokoo SK620V leads the group at 59°C over ambient, delivering the strongest raw cooling performance when allowed to run at 100% PWM, thanks to its dual cooling tower design. The CPS PCCooler RZ700D follows at 61°C, putting it in the middle of the pack.

DeepCool’s AK700 Digital WH comes in just behind at 62°C, which is still fine but does trail the other two units on test today.

Looking at thermal performance with the fans noise-normalised to 40 decibels, the Sudokoo SK620V stays top, hitting 61°C over ambient,making it the most efficient of the three. The CPS PCCooler RZ700D falls back to 66°C over ambient, showing a significant thermal hit when the fans are throttled to maintain acceptable noise levels.

The DeepCool AK700 Digital WH lands in the middle at 64°C, which is fine but it can't match the efficiency of the SK620V.

AMD PBO workloads push CPUs to sustained maximum all-core boosts, so the differences between these three coolers do become more apparent. The Sudokoo SK620V delivers a delta of 60°C while maintaining an average CPU multiplier of 51.5x, higher than the other two coolers, so it's able to dissipate heat more efficiently and maintain higher clock speeds even under heavy multi-core loads. The DeepCool AK700 Digital WH follows closely at 61°C and a 51.4x multiplier, which is still solid but shows slightly higher temperatures likely due to its smaller single-tower design.

The CPS PCCooler RZ700D hit 64 °C with a 51.2x multiplier, the lower performance likely as a result of its single-tower layout. It's perhaps not a surprise but the size and designs clearly make a difference, given the SK620V’s dual-tower layout puts it towards the top of the chart, whereas the other two single-tower coolers come in below.

Sudokoo SK620V

Pros:

• Quick installation and AMD mount uses an integrated CPU hold-down frame.
• Sliding fans are easy to install/remove and adjust.
• Very good build quality.
• Low noise even at max fan speed.

Cons

• LCD screen has little customisation.
• Quite expensive for a mid-range dual tower.
• LCD only works with software installed.

DeepCool AK700 Digital WH

Pros:

• Quick installation.
• Cool Screen implementation on wood effect panel.
• Decent thermal performance.

Cons:

• Removing the screen for installation can damage the cable.
• The screen can be difficult to see in bright light or at an angle.

CPS PCCooler RZ700D

Pros:

• Easy install.
• Clip-on fans.
• Dual Fans included.

Cons:

• Quite loud.
• Fans make a resonating noise at low speed.
• Thermal performance drops off when noise is normalised.

KitGuru says: If you're looking for premium features, unique looks or no frills CPU cooling, one of these three should suit your requirements.

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