Radeon RX 6600 LE vs 660M

Place in the ranking	561	99
Place by popularity	not in top-100	not in top-100
Power efficiency	11.87	21.34
Architecture	RDNA 2.0 (2020−2024)	RDNA 2.0 (2020−2024)
GPU code name	Rembrandt+	Navi 23
Market segment	Laptop	Desktop
Release date	3 January 2023 (2 years ago)	8 December 2023 (1 year 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	1500 MHz	1626 MHz
Boost clock speed	1900 MHz	2495 MHz
Number of transistors	13,100 million	11,060 million
Manufacturing process technology	6 nm	7 nm
Power consumption (TDP)	40 Watt	132 Watt
Texture fill rate	45.60	279.4
Floating-point processing power	1.459 TFLOPS	8.942 TFLOPS
ROPs	16	64
TMUs	24	112
Ray Tracing Cores	6	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).

Interface	PCIe 4.0 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	System Shared	GDDR6
Maximum RAM amount	System Shared	8 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	Portable Device Dependent	1x HDMI 2.1, 3x DisplayPort 1.4a
HDMI	-	+

API compatibility

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

DirectX	12 Ultimate (12_2)	12 Ultimate (12_2)
Shader Model	6.7	6.7
OpenGL	4.6	4.6
OpenCL	2.0	2.1
Vulkan	1.3	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.

Radeon 660M 6.88

RX 6600 LE 40.83
+493%

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 2647

RX 6600 LE 15700
+493%

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

−483%

140−150
+483%

FPS performance in popular games

Full HD
Low Preset

Counter-Strike 2	14−16 −467%	85−90 +467%
Cyberpunk 2077	24 −483%	140−150 +483%
Elden Ring	22 −491%	130−140 +491%

Full HD
Medium Preset

Battlefield 5	21−24 −491%	130−140 +491%
Counter-Strike 2	14−16 −467%	85−90 +467%
Cyberpunk 2077	10 −450%	55−60 +450%
Forza Horizon 4	42 −471%	240−250 +471%
Metro Exodus	32 −463%	180−190 +463%
Red Dead Redemption 2	20−22 −450%	110−120 +450%
Valorant	36 −483%	210−220 +483%

Full HD
High Preset

Battlefield 5	21−24 −491%	130−140 +491%
Counter-Strike 2	11 −491%	65−70 +491%
Cyberpunk 2077	7 −471%	40−45 +471%
Dota 2	35 −471%	200−210 +471%
Elden Ring	22 −491%	130−140 +491%
Far Cry 5	29 −486%	170−180 +486%
Fortnite	40−45 −485%	240−250 +485%
Forza Horizon 4	33 −476%	190−200 +476%
Grand Theft Auto V	25 −460%	140−150 +460%
Metro Exodus	20 −450%	110−120 +450%
PLAYERUNKNOWN'S BATTLEGROUNDS	55−60 −436%	300−310 +436%
Red Dead Redemption 2	20−22 −450%	110−120 +450%
The Witcher 3: Wild Hunt	21−24 −471%	120−130 +471%
Valorant	19 −479%	110−120 +479%
World of Tanks	100−110 −461%	600−650 +461%

Full HD
Ultra Preset

Battlefield 5	21−24 −491%	130−140 +491%
Counter-Strike 2	14−16 −467%	85−90 +467%
Cyberpunk 2077	14−16 −471%	80−85 +471%
Dota 2	48 −483%	280−290 +483%
Far Cry 5	30−35 −481%	180−190 +481%
Forza Horizon 4	28 −471%	160−170 +471%
PLAYERUNKNOWN'S BATTLEGROUNDS	55−60 −436%	300−310 +436%
Valorant	21−24 −491%	130−140 +491%

1440p
High Preset

Dota 2	7−8 −471%	40−45 +471%
Elden Ring	9−10 −456%	50−55 +456%
Grand Theft Auto V	7−8 −471%	40−45 +471%
PLAYERUNKNOWN'S BATTLEGROUNDS	35−40 −479%	220−230 +479%
Red Dead Redemption 2	5−6 −440%	27−30 +440%
World of Tanks	50−55 −480%	290−300 +480%

1440p
Ultra Preset

Battlefield 5	12−14 −483%	70−75 +483%
Counter-Strike 2	10−11 −450%	55−60 +450%
Cyberpunk 2077	5−6 −440%	27−30 +440%
Far Cry 5	14−16 −471%	80−85 +471%
Forza Horizon 4	12−14 −477%	75−80 +477%
Metro Exodus	10−11 −450%	55−60 +450%
The Witcher 3: Wild Hunt	8−9 −463%	45−50 +463%
Valorant	18−20 −456%	100−105 +456%

4K
High Preset

Counter-Strike 2	1−2 −400%	5−6 +400%
Dota 2	18−20 −456%	100−105 +456%
Elden Ring	4−5 −425%	21−24 +425%
Grand Theft Auto V	16−18 −488%	100−105 +488%
Metro Exodus	2−3 −400%	10−11 +400%
PLAYERUNKNOWN'S BATTLEGROUNDS	20−22 −450%	110−120 +450%
Red Dead Redemption 2	4−5 −425%	21−24 +425%
The Witcher 3: Wild Hunt	16−18 −488%	100−105 +488%

4K
Ultra Preset

Battlefield 5	6−7 −483%	35−40 +483%
Counter-Strike 2	1−2 −400%	5−6 +400%
Cyberpunk 2077	2−3 −400%	10−11 +400%
Dota 2	18−20 −456%	100−105 +456%
Far Cry 5	8−9 −463%	45−50 +463%
Fortnite	6−7 −483%	35−40 +483%
Forza Horizon 4	7−8 −471%	40−45 +471%
Valorant	6−7 −483%	35−40 +483%