Radeon RX 6600S vs 660M

VS

Aggregate performance score

We've compared Radeon 660M and Radeon RX 6600S, covering specs and all relevant benchmarks.

Radeon 660M
2023
40 Watt
16.31

RX 6600S outperforms 660M by an impressive 98% based on our aggregate benchmark results.

Primary details

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

Place in the ranking332171
Place by popularitynot in top-100not in top-100
Power efficiency27.9527.67
ArchitectureRDNA 2.0 (2020−2024)RDNA 2.0 (2020−2024)
GPU code nameRembrandt+Navi 23
Market segmentLaptopLaptop
Release date3 January 2023 (1 year 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 cores3841792
Core clock speed1500 MHz1700 MHz
Boost clock speed1900 MHz2000 MHz
Number of transistors13,100 million11,060 million
Manufacturing process technology6 nm7 nm
Power consumption (TDP)40 Watt80 Watt
Texture fill rate45.60224.0
Floating-point processing power1.459 TFLOPS7.168 TFLOPS
ROPs1664
TMUs24112
Ray Tracing Cores628

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 sizeno datamedium sized
InterfacePCIe 4.0 x8PCIe 4.0 x8
Supplementary power connectorsNoneNone

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 typeSystem SharedGDDR6
Maximum RAM amountSystem Shared4 GB
Memory bus widthSystem Shared128 Bit
Memory clock speedSystem Shared1750 MHz
Memory bandwidthno data224.0 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 ConnectorsPortable Device DependentNo outputs

API compatibility

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

DirectX12 Ultimate (12_2)12 Ultimate (12_2)
Shader Model6.76.5
OpenGL4.64.6
OpenCL2.02.1
Vulkan1.31.3

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.

Radeon 660M 16.31
RX 6600S 32.29
+98%

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.

Radeon 660M 6285
RX 6600S 12444
+98%

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 HD25
−80%
45−50
+80%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077 24
−154%
60−65
+154%

Full HD
Medium Preset

Assassin's Creed Odyssey 21−24
−230%
75−80
+230%
Assassin's Creed Valhalla 26
−135%
60−65
+135%
Battlefield 5 30−33
−283%
110−120
+283%
Call of Duty: Modern Warfare 20−22
−260%
70−75
+260%
Cyberpunk 2077 20
−205%
60−65
+205%
Far Cry 5 21−24
−239%
75−80
+239%
Far Cry New Dawn 27−30
−230%
85−90
+230%
Forza Horizon 4 65−70
−178%
180−190
+178%
Hitman 3 21
−257%
75−80
+257%
Horizon Zero Dawn 50−55
−180%
150−160
+180%
Metro Exodus 30−35
−274%
110−120
+274%
Red Dead Redemption 2 27−30
−215%
85−90
+215%
Shadow of the Tomb Raider 30−35
−297%
120−130
+297%
Watch Dogs: Legion 60−65
−98.4%
120−130
+98.4%

Full HD
High Preset

Assassin's Creed Odyssey 21−24
−230%
75−80
+230%
Assassin's Creed Valhalla 19
−221%
60−65
+221%
Battlefield 5 30−33
−283%
110−120
+283%
Call of Duty: Modern Warfare 20−22
−260%
70−75
+260%
Cyberpunk 2077 14
−336%
60−65
+336%
Far Cry 5 21−24
−239%
75−80
+239%
Far Cry New Dawn 27−30
−230%
85−90
+230%
Forza Horizon 4 65−70
−178%
180−190
+178%
Hitman 3 21
−257%
75−80
+257%
Horizon Zero Dawn 50−55
−180%
150−160
+180%
Metro Exodus 30−35
−274%
110−120
+274%
Red Dead Redemption 2 27−30
−215%
85−90
+215%
Shadow of the Tomb Raider 33
−285%
120−130
+285%
The Witcher 3: Wild Hunt 24−27
−185%
70−75
+185%
Watch Dogs: Legion 60−65
−98.4%
120−130
+98.4%

Full HD
Ultra Preset

Assassin's Creed Odyssey 21−24
−230%
75−80
+230%
Assassin's Creed Valhalla 14−16
−336%
60−65
+336%
Call of Duty: Modern Warfare 20−22
−260%
70−75
+260%
Cyberpunk 2077 14−16
−307%
60−65
+307%
Far Cry 5 21−24
−239%
75−80
+239%
Forza Horizon 4 65−70
−178%
180−190
+178%
Hitman 3 18−20
−295%
75−80
+295%
Horizon Zero Dawn 22
−586%
150−160
+586%
Shadow of the Tomb Raider 27
−370%
120−130
+370%
The Witcher 3: Wild Hunt 15
−393%
70−75
+393%
Watch Dogs: Legion 60−65
−98.4%
120−130
+98.4%

Full HD
Epic Preset

Red Dead Redemption 2 27−30
−215%
85−90
+215%

1440p
High Preset

Battlefield 5 18−20
−258%
65−70
+258%
Far Cry New Dawn 14−16
−260%
50−55
+260%

1440p
Ultra Preset

Assassin's Creed Odyssey 10−11
−280%
35−40
+280%
Assassin's Creed Valhalla 6−7
−533%
35−40
+533%
Call of Duty: Modern Warfare 10−11
−310%
40−45
+310%
Cyberpunk 2077 5−6
−440%
27−30
+440%
Far Cry 5 10−12
−273%
40−45
+273%
Forza Horizon 4 40−45
−370%
200−210
+370%
Hitman 3 12−14
−246%
45−50
+246%
Horizon Zero Dawn 20−22
−280%
75−80
+280%
Metro Exodus 14−16
−379%
65−70
+379%
Shadow of the Tomb Raider 12−14
−600%
80−85
+600%
The Witcher 3: Wild Hunt 9−10
−444%
45−50
+444%
Watch Dogs: Legion 60−65
−190%
180−190
+190%

1440p
Epic Preset

Red Dead Redemption 2 16−18
−281%
60−65
+281%

4K
High Preset

Battlefield 5 9−10
−289%
35−40
+289%
Far Cry New Dawn 7−8
−314%
27−30
+314%
Hitman 3 6−7
−383%
27−30
+383%
Horizon Zero Dawn 40−45
−315%
170−180
+315%
Metro Exodus 8−9
−450%
40−45
+450%
The Witcher 3: Wild Hunt 7−8
−486%
40−45
+486%

4K
Ultra Preset

Assassin's Creed Odyssey 6−7
−283%
21−24
+283%
Assassin's Creed Valhalla 4−5
−425%
21−24
+425%
Call of Duty: Modern Warfare 4−5
−450%
21−24
+450%
Cyberpunk 2077 1−2
−1000%
10−12
+1000%
Far Cry 5 5−6
−300%
20−22
+300%
Forza Horizon 4 12−14
−308%
45−50
+308%
Shadow of the Tomb Raider 6−7
−683%
45−50
+683%
Watch Dogs: Legion 3−4
−467%
16−18
+467%

4K
Epic Preset

Red Dead Redemption 2 9−10
−244%
30−35
+244%

This is how Radeon 660M and RX 6600S compete in popular games:

  • RX 6600S is 80% faster in 1080p

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

  • in Cyberpunk 2077, with 4K resolution and the Ultra Preset, the RX 6600S is 1000% faster.

All in all, in popular games:

  • Without exception, RX 6600S surpassed Radeon 660M in all 72 of our tests.

Pros & cons summary


Performance score 16.31 32.29
Recency 3 January 2023 4 January 2022
Chip lithography 6 nm 7 nm
Power consumption (TDP) 40 Watt 80 Watt

Radeon 660M has an age advantage of 11 months, a 16.7% more advanced lithography process, and 100% lower power consumption.

RX 6600S, on the other hand, has a 98% higher aggregate performance score.

The Radeon RX 6600S is our recommended choice as it beats the Radeon 660M in performance tests.


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

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AMD Radeon 660M
Radeon 660M
AMD Radeon RX 6600S
Radeon RX 6600S

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3.6 324 votes

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4.2 15 votes

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Questions & comments

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