Radeon RX 7900M vs RX 6600

Place in the ranking	109	39
Place by popularity	13	not in top-100
Cost-effectiveness evaluation	68.63	no data
Power efficiency	21.83	23.64
Architecture	RDNA 2.0 (2020−2024)	RDNA 3.0 (2022−2024)
GPU code name	Navi 23	Navi 31
Market segment	Desktop	Laptop
Release date	13 October 2021 (2 years ago)	19 October 2023 (less than a year ago)
Launch price (MSRP)	$329	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	1792	4608
Core clock speed	1626 MHz	1825 MHz
Boost clock speed	2491 MHz	2090 MHz
Number of transistors	11,060 million	57,700 million
Manufacturing process technology	7 nm	5 nm
Power consumption (TDP)	132 Watt	180 Watt
Texture fill rate	279.0	601.9
Floating-point processing power	8.928 TFLOPS	38.52 TFLOPS
ROPs	64	192
TMUs	112	288
Ray Tracing Cores	28	72

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	large
Interface	PCIe 4.0 x8	PCIe 4.0 x16
Length	190 mm	no data
Width	2-slot	no data
Supplementary power connectors	1x 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	8 GB	16 GB
Memory bus width	128 Bit	256 Bit
Memory clock speed	1750 MHz	2250 MHz
Memory bandwidth	224.0 GB/s	576.0 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, 3x DisplayPort	Portable Device Dependent
HDMI	+	-

API compatibility

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

DirectX	12.0 Ultimate (12_2)	12 Ultimate (12_2)
Shader Model	6.5	6.7
OpenGL	4.6	4.6
OpenCL	2.1	2.2
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 6600 39.26

RX 7900M 57.99
+47.7%

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 6600 15141

RX 7900M 22365
+47.7%

3DMark 11 Performance GPU

3DMark 11 is an obsolete DirectX 11 benchmark by Futuremark. It used four tests based on two scenes, one being few submarines exploring the submerged wreck of a sunken ship, the other is an abandoned temple deep in the jungle. All the tests are heavy with volumetric lighting and tessellation, and despite being done in 1280x720 resolution, are relatively taxing. Discontinued in January 2020, 3DMark 11 is now superseded by Time Spy.

RX 6600 31774

RX 7900M 59943
+88.7%

3DMark Fire Strike Graphics

Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.

RX 6600 23366

RX 7900M 50241
+115%

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	115 −26.1%	145 +26.1%
1440p	59 −78%	105 +78%
4K	32 −150%	80 +150%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

107

−40.2%

150−160
+40.2%

Full HD
Medium Preset

Assassin's Creed Odyssey	80−85 −43.4%	110−120 +43.4%
Assassin's Creed Valhalla	113 +13%	100−105 −13%
Battlefield 5	120−130 −44.4%	180−190 +44.4%
Call of Duty: Modern Warfare	75−80 −36.7%	100−110 +36.7%
Cyberpunk 2077	91 −42.9%	130−140 +42.9%
Far Cry 5	85−90 −28.2%	100−110 +28.2%
Far Cry New Dawn	95−100 −42.3%	130−140 +42.3%
Forza Horizon 4	190−200 −17.3%	220−230 +17.3%
Hitman 3	99 −19.2%	110−120 +19.2%
Horizon Zero Dawn	160−170 −33.7%	210−220 +33.7%
Metro Exodus	120−130 −21.4%	150−160 +21.4%
Red Dead Redemption 2	90−95 −23.9%	110−120 +23.9%
Shadow of the Tomb Raider	140−150 −60.1%	220−230 +60.1%
Watch Dogs: Legion	120−130 −14%	140−150 +14%

Full HD
High Preset

Assassin's Creed Odyssey	80−85 −43.4%	110−120 +43.4%
Assassin's Creed Valhalla	92 −8.7%	100−105 +8.7%
Battlefield 5	120−130 −44.4%	180−190 +44.4%
Call of Duty: Modern Warfare	75−80 −36.7%	100−110 +36.7%
Cyberpunk 2077	73 −37%	100−105 +37%
Far Cry 5	85−90 −28.2%	100−110 +28.2%
Far Cry New Dawn	95−100 −42.3%	130−140 +42.3%
Forza Horizon 4	190−200 −17.3%	220−230 +17.3%
Hitman 3	95 −24.2%	110−120 +24.2%
Horizon Zero Dawn	160−170 −33.7%	210−220 +33.7%
Metro Exodus	120−130 −21.4%	150−160 +21.4%
Red Dead Redemption 2	90−95 −23.9%	110−120 +23.9%
Shadow of the Tomb Raider	182 −25.8%	220−230 +25.8%
The Witcher 3: Wild Hunt	80−85 −46.9%	110−120 +46.9%
Watch Dogs: Legion	120−130 −14%	140−150 +14%

Full HD
Ultra Preset

Assassin's Creed Odyssey	80−85 −43.4%	110−120 +43.4%
Assassin's Creed Valhalla	78 −28.2%	100−105 +28.2%
Call of Duty: Modern Warfare	75−80 −36.7%	100−110 +36.7%
Cyberpunk 2077	59 −44.1%	85−90 +44.1%
Far Cry 5	85−90 −28.2%	100−110 +28.2%
Forza Horizon 4	190−200 −17.3%	220−230 +17.3%
Hitman 3	86 −37.2%	110−120 +37.2%
Horizon Zero Dawn	142 −53.5%	210−220 +53.5%
Shadow of the Tomb Raider	157 −119%	344 +119%
The Witcher 3: Wild Hunt	90 −86.7%	168 +86.7%
Watch Dogs: Legion	58 −153%	140−150 +153%

Full HD
Epic Preset

Red Dead Redemption 2

90−95

−23.9%

110−120
+23.9%

1440p
High Preset

Battlefield 5	75−80 −64%	120−130 +64%
Far Cry New Dawn	60−65 −48.3%	85−90 +48.3%

1440p
Ultra Preset

Assassin's Creed Odyssey	40−45 −54.8%	65−70 +54.8%
Assassin's Creed Valhalla	52 −32.7%	65−70 +32.7%
Call of Duty: Modern Warfare	45−50 −47.8%	65−70 +47.8%
Cyberpunk 2077	34 −47.1%	50−55 +47.1%
Far Cry 5	45−50 −48.9%	65−70 +48.9%
Forza Horizon 4	220−230 −22.7%	270−280 +22.7%
Hitman 3	54 −50%	80−85 +50%
Horizon Zero Dawn	102 −33.3%	130−140 +33.3%
Metro Exodus	97 −3.1%	100−105 +3.1%
Shadow of the Tomb Raider	101 −147%	249 +147%
The Witcher 3: Wild Hunt	55−60 −68.4%	95−100 +68.4%
Watch Dogs: Legion	190−200 −19.3%	220−230 +19.3%

1440p
Epic Preset

Red Dead Redemption 2

65−70

−46.3%

95−100
+46.3%

4K
High Preset

Battlefield 5	35−40 −64.1%	60−65 +64.1%
Far Cry New Dawn	30−35 −63.6%	50−55 +63.6%
Hitman 3	36 −33.3%	45−50 +33.3%
Horizon Zero Dawn	180−190 −19.8%	210−220 +19.8%
Metro Exodus	50−55 −66%	80−85 +66%
The Witcher 3: Wild Hunt	44 −164%	116 +164%

4K
Ultra Preset

Assassin's Creed Odyssey	27−30 −63%	40−45 +63%
Assassin's Creed Valhalla	24 −75%	40−45 +75%
Call of Duty: Modern Warfare	24−27 −64%	40−45 +64%
Cyberpunk 2077	14 −28.6%	18−20 +28.6%
Far Cry 5	21−24 −65.2%	35−40 +65.2%
Forza Horizon 4	50−55 −63%	85−90 +63%
Shadow of the Tomb Raider	53 −147%	131 +147%
Watch Dogs: Legion	21 −57.1%	30−35 +57.1%

4K
Epic Preset

Red Dead Redemption 2

35−40

−60%

55−60
+60%

This is how RX 6600 and RX 7900M compete in popular games:

RX 7900M is 26% faster in 1080p
RX 7900M is 78% faster in 1440p
RX 7900M is 150% faster in 4K

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

in Assassin's Creed Valhalla, with 1080p resolution and the Medium Preset, the RX 6600 is 13% faster.
in The Witcher 3: Wild Hunt, with 4K resolution and the High Preset, the RX 7900M is 164% faster.

All in all, in popular games:

RX 6600 is ahead in 1 test (2%)
RX 7900M is ahead in 65 tests (98%)

Pros & cons summary

Performance score	39.26	57.99
Recency	13 October 2021	19 October 2023
Maximum RAM amount	8 GB	16 GB
Chip lithography	7 nm	5 nm
Power consumption (TDP)	132 Watt	180 Watt

RX 6600 has 36.4% lower power consumption.

RX 7900M, on the other hand, has a 47.7% higher aggregate performance score, an age advantage of 2 years, a 100% higher maximum VRAM amount, and a 40% more advanced lithography process.

The Radeon RX 7900M is our recommended choice as it beats the Radeon RX 6600 in performance tests.

Be aware that Radeon RX 6600 is a desktop card while Radeon RX 7900M is a notebook one.

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