Radeon RX 6600 XT vs R9 M485X

Place in performance ranking	458	89
Place by popularity	not in top-100	77
Cost-effectiveness evaluation	no data	64.73
Architecture	GCN 3 (2014−2016)	Navi / RDNA2 (2020−2022)
GPU code name	Amethyst	Navi 23
Market segment	Laptop	Desktop
Release date	14 May 2016 (8 years ago)	30 July 2021 (3 years ago)
Launch price (MSRP)	no data	$379

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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	2048	2048
Core clock speed	no data	1968 MHz
Boost clock speed	no data	2589 MHz
Number of transistors	5,000 million	11,060 million
Manufacturing process technology	28 nm	7 nm
Power consumption (TDP)	250 Watt	160 (TGP) Watt
Texture fill rate	92.54	331.4
Floating-point performance	2.961 gflops	10.6 gflops

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	large	no data
Interface	MXM-B (3.0)	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	GDDR5	GDDR6
Maximum RAM amount	8 GB	8 GB
Memory bus width	256 Bit	128 Bit
Memory clock speed	5000 MHz	16000 MHz
Memory bandwidth	160.0 GB/s	256.0 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, 2x DisplayPort
HDMI	-	+

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.

R9 M485X 9.49

RX 6600 XT 42.80
+351%

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.

R9 M485X 3660

RX 6600 XT 16510
+351%

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	27−30 −396%	134 +396%
1440p	14−16 −393%	69 +393%
4K	9−10 −378%	43 +378%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

14−16

−427%

79
+427%

Full HD
Medium Preset

Assassin's Creed Odyssey	21−24 −291%	90−95 +291%
Assassin's Creed Valhalla	14−16 −821%	129 +821%
Battlefield 5	27−30 −372%	130−140 +372%
Call of Duty: Modern Warfare	18−20 −353%	85−90 +353%
Cyberpunk 2077	14−16 −420%	78 +420%
Far Cry 5	21−24 −314%	90−95 +314%
Far Cry New Dawn	24−27 −304%	100−110 +304%
Forza Horizon 4	60−65 −216%	190−200 +216%
Hitman 3	18−20 −500%	108 +500%
Horizon Zero Dawn	50−55 −228%	170−180 +228%
Metro Exodus	30−33 −343%	130−140 +343%
Red Dead Redemption 2	24−27 −273%	95−100 +273%
Shadow of the Tomb Raider	30−35 −413%	150−160 +413%
Watch Dogs: Legion	60−65 −118%	130−140 +118%

Full HD
High Preset

Assassin's Creed Odyssey	21−24 −291%	90−95 +291%
Assassin's Creed Valhalla	14−16 −657%	106 +657%
Battlefield 5	27−30 −372%	130−140 +372%
Call of Duty: Modern Warfare	18−20 −353%	85−90 +353%
Cyberpunk 2077	14−16 −407%	76 +407%
Far Cry 5	21−24 −314%	90−95 +314%
Far Cry New Dawn	24−27 −304%	100−110 +304%
Forza Horizon 4	60−65 −216%	190−200 +216%
Hitman 3	18−20 −500%	108 +500%
Horizon Zero Dawn	50−55 −228%	170−180 +228%
Metro Exodus	30−33 −343%	130−140 +343%
Red Dead Redemption 2	24−27 −273%	95−100 +273%
Shadow of the Tomb Raider	30−35 −574%	209 +574%
The Witcher 3: Wild Hunt	24−27 −238%	85−90 +238%
Watch Dogs: Legion	60−65 −118%	130−140 +118%

Full HD
Ultra Preset

Assassin's Creed Odyssey	21−24 −291%	90−95 +291%
Assassin's Creed Valhalla	14−16 −436%	75 +436%
Call of Duty: Modern Warfare	18−20 −353%	85−90 +353%
Cyberpunk 2077	14−16 −360%	69 +360%
Far Cry 5	21−24 −314%	90−95 +314%
Forza Horizon 4	60−65 −216%	190−200 +216%
Hitman 3	18−20 −456%	100 +456%
Horizon Zero Dawn	50−55 −196%	157 +196%
Shadow of the Tomb Raider	30−35 −490%	183 +490%
The Witcher 3: Wild Hunt	24−27 −281%	99 +281%
Watch Dogs: Legion	60−65 +0%	61 +0%

Full HD
Epic Preset

Red Dead Redemption 2

24−27

−273%

95−100
+273%

1440p
High Preset

Battlefield 5	18−20 −361%	80−85 +361%
Far Cry New Dawn	14−16 −364%	65−70 +364%

1440p
Ultra Preset

Assassin's Creed Odyssey	9−10 −422%	45−50 +422%
Assassin's Creed Valhalla	5−6 −1020%	56 +1020%
Call of Duty: Modern Warfare	10−11 −400%	50−55 +400%
Cyberpunk 2077	4−5 −900%	40 +900%
Far Cry 5	10−12 −345%	45−50 +345%
Forza Horizon 4	40−45 −473%	230−240 +473%
Hitman 3	12−14 −415%	67 +415%
Horizon Zero Dawn	20−22 −480%	116 +480%
Metro Exodus	12−14 −654%	98 +654%
Shadow of the Tomb Raider	10−12 −973%	118 +973%
The Witcher 3: Wild Hunt	9−10 −611%	60−65 +611%
Watch Dogs: Legion	60−65 −237%	200−210 +237%

1440p
Epic Preset

Red Dead Redemption 2

16−18

−363%

70−75
+363%

4K
High Preset

Battlefield 5	9−10 −378%	40−45 +378%
Far Cry New Dawn	7−8 −429%	35−40 +429%
Hitman 3	6−7 −450%	33 +450%
Horizon Zero Dawn	35−40 −390%	190−200 +390%
Metro Exodus	7−8 −700%	55−60 +700%
The Witcher 3: Wild Hunt	7−8 −671%	54 +671%

4K
Ultra Preset

Assassin's Creed Odyssey	5−6 −500%	30−33 +500%
Assassin's Creed Valhalla	4−5 −600%	28 +600%
Call of Duty: Modern Warfare	4−5 −600%	27−30 +600%
Cyberpunk 2077	1−2 −1300%	14 +1300%
Far Cry 5	5−6 −400%	24−27 +400%
Forza Horizon 4	12−14 −400%	60−65 +400%
Shadow of the Tomb Raider	6−7 −917%	61 +917%
Watch Dogs: Legion	3−4 −700%	24 +700%

4K
Epic Preset

Red Dead Redemption 2

9−10

−333%

35−40
+333%

This is how R9 M485X and RX 6600 XT compete in popular games:

RX 6600 XT is 396% faster in 1080p
RX 6600 XT is 393% faster in 1440p
RX 6600 XT is 378% faster in 4K

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

in Cyberpunk 2077, with 4K resolution and the Ultra Preset, the RX 6600 XT is 1300% faster.

All in all, in popular games:

RX 6600 XT is ahead in 71 test (99%)
there's a draw in 1 test (1%)

Pros & cons summary

Performance score	9.49	42.80
Recency	14 May 2016	30 July 2021
Chip lithography	28 nm	7 nm
Power consumption (TDP)	250 Watt	160 Watt

RX 6600 XT has a 351% higher aggregate performance score, an age advantage of 5 years, a 300% more advanced lithography process, and 56.3% lower power consumption.

The Radeon RX 6600 XT is our recommended choice as it beats the Radeon R9 M485X in performance tests.

Be aware that Radeon R9 M485X is a notebook card while Radeon RX 6600 XT is a desktop one.

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