Radeon RX 6600 vs 620

Place in performance ranking	814	103
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.34	34.57
Architecture	GCN 1.0 (2012−2020)	Navi / RDNA2 (2020−2022)
GPU code name	Polaris 24	Navi 23
Market segment	Laptop	Desktop
Release date	12 August 2019 (4 years ago)	13 October 2021 (2 years ago)
Launch price (MSRP)	no data	$329
Current price	$67	$358 (1.1x MSRP)

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

RX 6600 has 10068% better value for money than Radeon 620.

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	384	1792
Core clock speed	no data	2044 MHz
Boost clock speed	1024 MHz	2491 MHz
Number of transistors	1,550 million	11,060 million
Manufacturing process technology	28 nm	7 nm
Power consumption (TDP)	50 Watt	132 Watt
Texture fill rate	24.58	279.0

Form factor & compatibility

Information on Radeon 620 and Radeon RX 6600 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). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Interface	PCIe 3.0 x8	PCIe 4.0 x8
Length	no data	190 mm
Width	no data	2-slot
Supplementary power connectors	None	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 type	DDR3, GDDR5	GDDR6
Maximum RAM amount	4 GB	8 GB
Memory bus width	64 Bit	128 Bit
Memory clock speed	2250 MHz	14500 MHz
Memory bandwidth	14.4 GB/s	224.0 GB/s
Shared memory	-	-

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 Connectors	No outputs	1x HDMI, 3x DisplayPort
HDMI	no data	+

API compatibility

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

DirectX	12 (12_0)	12.0 Ultimate (12_2)
Shader Model	6.3	6.5
OpenGL	4.6	4.6
OpenCL	2.0	2.1
Vulkan	1.2.131	1.2

Synthetic benchmark performance

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

Combined synthetic benchmark score

This is our combined benchmark performance 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.

Radeon 620 2.32

RX 6600 39.12
+1586%

RX 6600 outperforms 620 by 1586% based on our aggregated benchmark results.

Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. 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.

Benchmark coverage: 25%

Radeon 620 897

RX 6600 15123
+1586%

RX 6600 outperforms 620 by 1586% in Passmark.

3DMark Fire Strike Graphics

Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.

Benchmark coverage: 14%

Radeon 620 1730

RX 6600 23366
+1251%

RX 6600 outperforms 620 by 1251% in 3DMark Fire Strike Graphics.

Gaming performance

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

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD	6−7 −1717%	109 +1717%
1440p	3−4 −1867%	59 +1867%
4K	1−2 −3200%	33 +3200%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

5−6

−2040%

107
+2040%

Full HD
Medium Preset

Assassin's Creed Odyssey	3−4 −2200%	65−70 +2200%
Battlefield 5	3−4 −4100%	120−130 +4100%
Call of Duty: Modern Warfare	5−6 −1640%	85−90 +1640%
Cyberpunk 2077	5−6 −1720%	91 +1720%
Far Cry 5	9−10 −789%	80−85 +789%
Far Cry New Dawn	3−4 −3167%	95−100 +3167%
Forza Horizon 4	9−10 −1211%	110−120 +1211%
Hitman 3	6−7 −1533%	95−100 +1533%
Horizon Zero Dawn	14−16 −1673%	266 +1673%
Metro Exodus	0−1	100−105
Red Dead Redemption 2	5−6 −1780%	90−95 +1780%
Shadow of the Tomb Raider	10−12 −1945%	225 +1945%
Watch Dogs: Legion	1−2 −10400%	105 +10400%

Full HD
High Preset

Assassin's Creed Odyssey	3−4 −2200%	65−70 +2200%
Battlefield 5	3−4 −4100%	120−130 +4100%
Call of Duty: Modern Warfare	5−6 −1640%	85−90 +1640%
Cyberpunk 2077	5−6 −1360%	73 +1360%
Far Cry 5	9−10 −589%	62 +589%
Far Cry New Dawn	3−4 −2133%	67 +2133%
Forza Horizon 4	9−10 −1211%	110−120 +1211%
Hitman 3	6−7 −1467%	94 +1467%
Horizon Zero Dawn	14−16 −1327%	214 +1327%
Metro Exodus	0−1	133
Red Dead Redemption 2	5−6 −1780%	90−95 +1780%
Shadow of the Tomb Raider	10−12 −1218%	145 +1218%
The Witcher 3: Wild Hunt	6−7 −2350%	147 +2350%
Watch Dogs: Legion	1−2 −9300%	94 +9300%

Full HD
Ultra Preset

Assassin's Creed Odyssey	3−4 −2200%	65−70 +2200%
Call of Duty: Modern Warfare	5−6 −1640%	85−90 +1640%
Cyberpunk 2077	5−6 −1080%	59 +1080%
Far Cry 5	9−10 −789%	80−85 +789%
Forza Horizon 4	9−10 −1211%	110−120 +1211%
Horizon Zero Dawn	14−16 −847%	142 +847%
Metro Exodus	0−1	118
The Witcher 3: Wild Hunt	6−7 −1400%	90 +1400%
Watch Dogs: Legion	1−2 −5700%	58 +5700%

Full HD
Epic Preset

Red Dead Redemption 2

5−6

−1780%

90−95
+1780%

1440p
High Preset

Battlefield 5	4−5 −1775%	75−80 +1775%
Far Cry New Dawn	2−3 −4450%	90−95 +4450%
Red Dead Redemption 2	1−2 −3000%	30−35 +3000%

1440p
Ultra Preset

Call of Duty: Modern Warfare	5−6 −1100%	60−65 +1100%
Cyberpunk 2077	1−2 −3300%	34 +3300%
Far Cry 5	3−4 −2933%	91 +2933%
Forza Horizon 4	3−4 −2633%	80−85 +2633%
Horizon Zero Dawn	6−7 −1600%	102 +1600%
The Witcher 3: Wild Hunt	2−3 −2700%	55−60 +2700%
Watch Dogs: Legion	0−1	41

4K
High Preset

Far Cry 5	8−9 −338%	35 +338%
Horizon Zero Dawn	2−3 −2400%	50−55 +2400%

4K
Ultra Preset

Assassin's Creed Odyssey	1−2 −2600%	27−30 +2600%
Assassin's Creed Valhalla	1−2 −2300%	24 +2300%
Call of Duty: Modern Warfare	0−1	35−40
Horizon Zero Dawn	2−3 −2650%	55 +2650%
Metro Exodus	5−6 −860%	48 +860%
Watch Dogs: Legion	0−1	21

4K
Epic Preset

Red Dead Redemption 2

3−4

−1067%

35−40
+1067%

This is how Radeon 620 and RX 6600 compete in popular games:

RX 6600 is 1717% faster in 1080p
RX 6600 is 1867% faster in 1440p
RX 6600 is 3200% faster in 4K

Here's the range of performance differences observed across popular games:

in Watch Dogs: Legion, with 1080p resolution and the Medium Preset, the RX 6600 is 10400% faster than the Radeon 620.

All in all, in popular games:

Without exception, RX 6600 surpassed Radeon 620 in all 51 of our tests.

Pros & cons summary

Performance score	2.32	39.12
Recency	12 August 2019	13 October 2021
Maximum RAM amount	4 GB	8 GB
Chip lithography	28 nm	7 nm
Power consumption (TDP)	50 Watt	132 Watt