Radeon RX 6600S vs HD 7620G

Place in the ranking	1124	140
Place by popularity	not in top-100	not in top-100
Power efficiency	2.76	32.54
Architecture	TeraScale 3 (2010−2013)	RDNA 2.0 (2020−2024)
GPU code name	Devastator	Navi 23
Market segment	Laptop	Laptop
Release date	15 May 2012 (12 years ago)	4 January 2022 (2 years ago)

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 cores	384	1792
Core clock speed	360 MHz	1700 MHz
Boost clock speed	497 MHz	2000 MHz
Number of transistors	1,303 million	11,060 million
Manufacturing process technology	32 nm	7 nm
Power consumption (TDP)	25 Watt	80 Watt
Texture fill rate	11.93	224.0
Floating-point processing power	0.3817 TFLOPS	7.168 TFLOPS
ROPs	8	64
TMUs	24	112
Ray Tracing Cores	no data	28

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).

Laptop size	medium sized	medium sized
Interface	IGP	PCIe 4.0 x8
Supplementary power connectors	no data	None

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	System Shared	GDDR6
Maximum RAM amount	System Shared	4 GB
Memory bus width	System Shared	128 Bit
Memory clock speed	System Shared	1750 MHz
Memory bandwidth	no data	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

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	11.2 (11_0)	12 Ultimate (12_2)
Shader Model	5.0	6.5
OpenGL	4.4	4.6
OpenCL	1.2	2.1
Vulkan	N/A	1.3

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.

HD 7620G 0.94

RX 6600S 35.47
+3673%

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.

HD 7620G 363

RX 6600S 13678
+3668%

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

−3549%

1350−1400
+3549%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

3−4

−1933%

60−65
+1933%

Full HD
Medium Preset

Assassin's Creed Odyssey	5−6 −1420%	75−80 +1420%
Call of Duty: Modern Warfare	3−4 −2300%	70−75 +2300%
Cyberpunk 2077	3−4 −1933%	60−65 +1933%
Far Cry 5	0−1	75−80
Far Cry New Dawn	2−3 −4350%	85−90 +4350%
Hitman 3	5−6 −1400%	75−80 +1400%
Horizon Zero Dawn	12−14 −1158%	150−160 +1158%
Red Dead Redemption 2	1−2 −8400%	85−90 +8400%
Shadow of the Tomb Raider	7−8 −1714%	120−130 +1714%
Watch Dogs: Legion	30−35 −297%	120−130 +297%

Full HD
High Preset

Assassin's Creed Odyssey	5−6 −1420%	75−80 +1420%
Call of Duty: Modern Warfare	3−4 −2300%	70−75 +2300%
Cyberpunk 2077	3−4 −1933%	60−65 +1933%
Far Cry 5	0−1	75−80
Far Cry New Dawn	2−3 −4350%	85−90 +4350%
Hitman 3	5−6 −1400%	75−80 +1400%
Horizon Zero Dawn	12−14 −1158%	150−160 +1158%
Red Dead Redemption 2	1−2 −8400%	85−90 +8400%
Shadow of the Tomb Raider	7−8 −1714%	120−130 +1714%
The Witcher 3: Wild Hunt	10−11 −640%	70−75 +640%
Watch Dogs: Legion	30−35 −297%	120−130 +297%

Full HD
Ultra Preset

Assassin's Creed Odyssey	5−6 −1420%	75−80 +1420%
Call of Duty: Modern Warfare	3−4 −2300%	70−75 +2300%
Cyberpunk 2077	3−4 −1933%	60−65 +1933%
Far Cry 5	0−1	75−80
Hitman 3	5−6 −1400%	75−80 +1400%
Horizon Zero Dawn	12−14 −1158%	150−160 +1158%
Shadow of the Tomb Raider	7−8 −1714%	120−130 +1714%
The Witcher 3: Wild Hunt	10−11 −640%	70−75 +640%
Watch Dogs: Legion	30−35 −297%	120−130 +297%

Full HD
Epic Preset

Red Dead Redemption 2

1−2

−8400%

85−90
+8400%

1440p
High Preset

Battlefield 5	0−1	65−70
Far Cry New Dawn	1−2 −5300%	50−55 +5300%

1440p
Ultra Preset

Assassin's Creed Odyssey	1−2 −3700%	35−40 +3700%
Cyberpunk 2077	1−2 −2600%	27−30 +2600%
Far Cry 5	1−2 −4000%	40−45 +4000%
Hitman 3	7−8 −543%	45−50 +543%
Horizon Zero Dawn	4−5 −1800%	75−80 +1800%
The Witcher 3: Wild Hunt	0−1	45−50
Watch Dogs: Legion	4−5 −4400%	180−190 +4400%

1440p
Epic Preset

Red Dead Redemption 2

3−4

−1933%

60−65
+1933%

4K
High Preset

Far Cry New Dawn

0−1

27−30

4K
Ultra Preset

Assassin's Creed Odyssey	1−2 −2200%	21−24 +2200%
Assassin's Creed Valhalla	0−1	21−24
Far Cry 5	0−1	20−22

4K
Epic Preset

Red Dead Redemption 2

2−3

−1450%

30−35
+1450%

Full HD
Medium Preset

Assassin's Creed Valhalla	60−65 +0%	60−65 +0%
Battlefield 5	110−120 +0%	110−120 +0%
Forza Horizon 4	180−190 +0%	180−190 +0%
Metro Exodus	110−120 +0%	110−120 +0%

Full HD
High Preset

Assassin's Creed Valhalla	60−65 +0%	60−65 +0%
Battlefield 5	110−120 +0%	110−120 +0%
Forza Horizon 4	180−190 +0%	180−190 +0%
Metro Exodus	110−120 +0%	110−120 +0%

Full HD
Ultra Preset

Assassin's Creed Valhalla	60−65 +0%	60−65 +0%
Forza Horizon 4	180−190 +0%	180−190 +0%

1440p
Ultra Preset

Assassin's Creed Valhalla	35−40 +0%	35−40 +0%
Call of Duty: Modern Warfare	40−45 +0%	40−45 +0%
Forza Horizon 4	200−210 +0%	200−210 +0%
Metro Exodus	65−70 +0%	65−70 +0%
Shadow of the Tomb Raider	80−85 +0%	80−85 +0%

4K
High Preset

Battlefield 5	35−40 +0%	35−40 +0%
Hitman 3	27−30 +0%	27−30 +0%
Horizon Zero Dawn	170−180 +0%	170−180 +0%
Metro Exodus	40−45 +0%	40−45 +0%
The Witcher 3: Wild Hunt	40−45 +0%	40−45 +0%

4K
Ultra Preset

Call of Duty: Modern Warfare	21−24 +0%	21−24 +0%
Cyberpunk 2077	10−12 +0%	10−12 +0%
Forza Horizon 4	45−50 +0%	45−50 +0%
Shadow of the Tomb Raider	45−50 +0%	45−50 +0%
Watch Dogs: Legion	16−18 +0%	16−18 +0%

This is how HD 7620G and RX 6600S compete in popular games:

RX 6600S is 3549% faster in 1080p

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

in Red Dead Redemption 2, with 1080p resolution and the Medium Preset, the RX 6600S is 8400% faster.

All in all, in popular games:

RX 6600S is ahead in 39 tests (61%)
there's a draw in 25 tests (39%)

Pros & cons summary

Performance score	0.94	35.47
Recency	15 May 2012	4 January 2022
Chip lithography	32 nm	7 nm
Power consumption (TDP)	25 Watt	80 Watt

HD 7620G has 220% lower power consumption.

RX 6600S, on the other hand, has a 3673.4% higher aggregate performance score, an age advantage of 9 years, and a 357.1% more advanced lithography process.

The Radeon RX 6600S is our recommended choice as it beats the Radeon HD 7620G in performance tests.

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.