Radeon RX 6600S vs RX 6800 XT

Place in the ranking	29	140
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	52.60	no data
Power efficiency	15.87	32.54
Architecture	RDNA 2.0 (2020−2024)	RDNA 2.0 (2020−2024)
GPU code name	Navi 21	Navi 23
Market segment	Desktop	Laptop
Release date	28 October 2020 (3 years ago)	4 January 2022 (2 years ago)
Launch price (MSRP)	$649	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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	4608	1792
Core clock speed	1825 MHz	1700 MHz
Boost clock speed	2250 MHz	2000 MHz
Number of transistors	26,800 million	11,060 million
Manufacturing process technology	7 nm	7 nm
Power consumption (TDP)	300 Watt	80 Watt
Texture fill rate	648.0	224.0
Floating-point processing power	20.74 TFLOPS	7.168 TFLOPS
ROPs	128	64
TMUs	288	112
Ray Tracing Cores	72	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	no data	medium sized
Interface	PCIe 4.0 x16	PCIe 4.0 x8
Length	267 mm	no data
Width	2-slot	no data
Supplementary power connectors	2x 8-pin	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	GDDR6	GDDR6
Maximum RAM amount	16 GB	4 GB
Memory bus width	256 Bit	128 Bit
Memory clock speed	2000 MHz	1750 MHz
Memory bandwidth	512.0 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	1x HDMI, 2x DisplayPort, 1x USB Type-C	No outputs
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	6.5	6.5
OpenGL	4.6	4.6
OpenCL	2.1	2.1
Vulkan	1.2	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.

RX 6800 XT 64.89
+83%

RX 6600S 35.46

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.

RX 6800 XT 25029
+83%

RX 6600S 13678

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	203 +84.5%	110−120 −84.5%
1440p	134 +91.4%	70−75 −91.4%
4K	86 +91.1%	45−50 −91.1%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

120−130
+105%

60−65

−105%

Full HD
Medium Preset

Assassin's Creed Odyssey	130−140 +76.3%	75−80 −76.3%
Assassin's Creed Valhalla	158 +159%	60−65 −159%
Battlefield 5	200−210 +79.1%	110−120 −79.1%
Call of Duty: Modern Warfare	110−120 +61.1%	70−75 −61.1%
Cyberpunk 2077	120−130 +105%	60−65 −105%
Far Cry 5	110−120 +47.4%	75−80 −47.4%
Far Cry New Dawn	150−160 +76.4%	85−90 −76.4%
Forza Horizon 4	230−240 +28.7%	180−190 −28.7%
Hitman 3	132 +76%	75−80 −76%
Horizon Zero Dawn	240−250 +58.9%	150−160 −58.9%
Metro Exodus	144 +24.1%	110−120 −24.1%
Red Dead Redemption 2	122 +43.5%	85−90 −43.5%
Shadow of the Tomb Raider	260−270 +111%	120−130 −111%
Watch Dogs: Legion	309 +151%	120−130 −151%

Full HD
High Preset

Assassin's Creed Odyssey	130−140 +76.3%	75−80 −76.3%
Assassin's Creed Valhalla	135 +121%	60−65 −121%
Battlefield 5	200−210 +79.1%	110−120 −79.1%
Call of Duty: Modern Warfare	110−120 +61.1%	70−75 −61.1%
Cyberpunk 2077	120−130 +105%	60−65 −105%
Far Cry 5	110−120 +47.4%	75−80 −47.4%
Far Cry New Dawn	150−160 +76.4%	85−90 −76.4%
Forza Horizon 4	230−240 +28.7%	180−190 −28.7%
Hitman 3	136 +81.3%	75−80 −81.3%
Horizon Zero Dawn	240−250 +58.9%	150−160 −58.9%
Metro Exodus	144 +24.1%	110−120 −24.1%
Red Dead Redemption 2	110−120 +40%	85−90 −40%
Shadow of the Tomb Raider	355 +180%	120−130 −180%
The Witcher 3: Wild Hunt	130−140 +85.1%	70−75 −85.1%
Watch Dogs: Legion	309 +151%	120−130 −151%

Full HD
Ultra Preset

Assassin's Creed Odyssey	130−140 +76.3%	75−80 −76.3%
Assassin's Creed Valhalla	118 +93.4%	60−65 −93.4%
Call of Duty: Modern Warfare	110−120 +61.1%	70−75 −61.1%
Cyberpunk 2077	120−130 +105%	60−65 −105%
Far Cry 5	110−120 +47.4%	75−80 −47.4%
Forza Horizon 4	230−240 +28.7%	180−190 −28.7%
Hitman 3	122 +62.7%	75−80 −62.7%
Horizon Zero Dawn	279 +84.8%	150−160 −84.8%
Shadow of the Tomb Raider	302 +138%	120−130 −138%
The Witcher 3: Wild Hunt	160 +116%	70−75 −116%
Watch Dogs: Legion	112 −9.8%	120−130 +9.8%

Full HD
Epic Preset

Red Dead Redemption 2

120
+41.2%

85−90

−41.2%

1440p
High Preset

Battlefield 5	140−150 +119%	65−70 −119%
Far Cry New Dawn	100−110 +88.9%	50−55 −88.9%

1440p
Ultra Preset

Assassin's Creed Odyssey	75−80 +97.4%	35−40 −97.4%
Assassin's Creed Valhalla	98 +158%	35−40 −158%
Call of Duty: Modern Warfare	75−80 +85.4%	40−45 −85.4%
Cyberpunk 2077	65−70 +144%	27−30 −144%
Far Cry 5	75−80 +85.4%	40−45 −85.4%
Forza Horizon 4	270−280 +34.2%	200−210 −34.2%
Hitman 3	114 +153%	45−50 −153%
Horizon Zero Dawn	215 +183%	75−80 −183%
Metro Exodus	112 +67.2%	65−70 −67.2%
Shadow of the Tomb Raider	222 +164%	80−85 −164%
The Witcher 3: Wild Hunt	110−120 +133%	45−50 −133%
Watch Dogs: Legion	314 +74.4%	180−190 −74.4%

1440p
Epic Preset

Red Dead Redemption 2

116
+90.2%

60−65

−90.2%

4K
High Preset

Battlefield 5	75−80 +123%	35−40 −123%
Far Cry New Dawn	60−65 +121%	27−30 −121%
Hitman 3	55−60 +93.1%	27−30 −93.1%
Horizon Zero Dawn	220−230 +31.8%	170−180 −31.8%
Metro Exodus	126 +186%	40−45 −186%
The Witcher 3: Wild Hunt	110 +168%	40−45 −168%

4K
Ultra Preset

Assassin's Creed Odyssey	50−55 +126%	21−24 −126%
Assassin's Creed Valhalla	65 +210%	21−24 −210%
Call of Duty: Modern Warfare	45−50 +114%	21−24 −114%
Cyberpunk 2077	30−35 +182%	10−12 −182%
Far Cry 5	45−50 +125%	20−22 −125%
Forza Horizon 4	100−110 +116%	45−50 −116%
Shadow of the Tomb Raider	133 +183%	45−50 −183%
Watch Dogs: Legion	49 +188%	16−18 −188%

4K
Epic Preset

Red Dead Redemption 2

76
+145%

30−35

−145%

This is how RX 6800 XT and RX 6600S compete in popular games:

RX 6800 XT is 85% faster in 1080p
RX 6800 XT is 91% faster in 1440p
RX 6800 XT is 91% faster in 4K

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

in Assassin's Creed Valhalla, with 4K resolution and the Ultra Preset, the RX 6800 XT is 210% faster.
in Watch Dogs: Legion, with 1080p resolution and the Ultra Preset, the RX 6600S is 10% faster.

All in all, in popular games: