Radeon RX 7900 XTX vs RX 6600M

VS

Aggregate performance score

We've compared Radeon RX 6600M with Radeon RX 7900 XTX, including specs and performance data.

RX 6600M
2021
8 GB GDDR6, 100 Watt
36.05

RX 7900 XTX outperforms RX 6600M by a whopping 124% based on our aggregate benchmark results.

Primary details

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

Place in the ranking1367
Place by popularitynot in top-10051
Cost-effectiveness evaluationno data34.75
Power efficiency24.8715.68
ArchitectureRDNA 2.0 (2020−2024)RDNA 3.0 (2022−2024)
GPU code nameNavi 23Navi 31
Market segmentLaptopDesktop
Release date31 May 2021 (3 years ago)3 November 2022 (2 years ago)
Launch price (MSRP)no data$999

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 cores17926144
Core clock speed2068 MHz1929 MHz
Boost clock speed2416 MHz2498 MHz
Number of transistors11,060 million57,700 million
Manufacturing process technology7 nm5 nm
Power consumption (TDP)100 Watt355 Watt
Texture fill rate270.6959.2
Floating-point processing power8.659 TFLOPS61.39 TFLOPS
ROPs64192
TMUs112384
Ray Tracing Cores2896

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 sizemedium sizedno data
InterfacePCIe 4.0 x8PCIe 4.0 x16
Lengthno data287 mm
Widthno data2-slot
Supplementary power connectorsNone2x 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 typeGDDR6GDDR6
Maximum RAM amount8 GB24 GB
Memory bus width128 Bit384 Bit
Memory clock speed1750 MHz2500 MHz
Memory bandwidth224.0 GB/s960.0 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 ConnectorsNo outputs1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C
HDMI-+

API compatibility

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

DirectX12 Ultimate (12_2)12 Ultimate (12_2)
Shader Model6.56.7
OpenGL4.64.6
OpenCL2.12.2
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.

RX 6600M 36.05
RX 7900 XTX 80.70
+124%

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 6600M 13861
RX 7900 XTX 31031
+124%

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 6600M 31868
RX 7900 XTX 83322
+161%

3DMark Vantage Performance

3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.

RX 6600M 72686
RX 7900 XTX 148746
+105%

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 6600M 23525
RX 7900 XTX 64680
+175%

3DMark Cloud Gate GPU

Cloud Gate is an outdated DirectX 11 feature level 10 benchmark that was used for home PCs and basic notebooks. It displays a few scenes of some weird space teleportation device launching spaceships into unknown, using fixed resolution of 1280x720. Just like Ice Storm benchmark, it has been discontinued in January 2020 and replaced by 3DMark Night Raid.

RX 6600M 144612
RX 7900 XTX 211480
+46.2%

3DMark Ice Storm GPU

Ice Storm Graphics is an obsolete benchmark, part of 3DMark suite. Ice Storm was used to measure entry level laptops and Windows-based tablets performance. It utilizes DirectX 11 feature level 9 to display a battle between two space fleets near a frozen planet in 1280x720 resolution. Discontinued in January 2020, it is now superseded by 3DMark Night Raid.

RX 6600M 479404
RX 7900 XTX 758139
+58.1%

SPECviewperf 12 - specvp12 maya-04

RX 6600M 159
RX 7900 XTX 367
+131%

SPECviewperf 12 - specvp12 sw-03

RX 6600M 180
RX 7900 XTX 360
+100%

SPECviewperf 12 - specvp12 snx-02

RX 6600M 164
RX 7900 XTX 400
+144%

SPECviewperf 12 - specvp12 catia-04

RX 6600M 207
RX 7900 XTX 536
+159%

SPECviewperf 12 - specvp12 creo-01

RX 6600M 102
RX 7900 XTX 187
+83.3%

SPECviewperf 12 - specvp12 mediacal-01

RX 6600M 96
RX 7900 XTX 347
+261%

SPECviewperf 12 - specvp12 showcase-01

RX 6600M 120
RX 7900 XTX 322
+168%

SPECviewperf 12 - specvp12 3dsmax-05

RX 6600M 172
RX 7900 XTX 553
+222%

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 HD99
−148%
246
+148%
1440p52
−215%
164
+215%
4K31
−235%
104
+235%

Cost per frame, $

1080pno data4.06
1440pno data6.09
4Kno data9.61

FPS performance in popular games

Full HD
Low Preset

Counter-Strike 2 92
−133%
214
+133%
Cyberpunk 2077 110
−120%
242
+120%
Elden Ring 90
−150%
225
+150%

Full HD
Medium Preset

Battlefield 5 95−100
−18.2%
110−120
+18.2%
Counter-Strike 2 75
−221%
241
+221%
Cyberpunk 2077 79
−46.8%
116
+46.8%
Forza Horizon 4 216
−180%
604
+180%
Metro Exodus 100
−69%
169
+69%
Red Dead Redemption 2 70−75
−110%
150−160
+110%
Valorant 160
−193%
450−500
+193%

Full HD
High Preset

Battlefield 5 95−100
−18.2%
110−120
+18.2%
Counter-Strike 2 66
−233%
220
+233%
Cyberpunk 2077 64
−62.5%
104
+62.5%
Dota 2 115
−59.1%
183
+59.1%
Elden Ring 113
−182%
300−350
+182%
Far Cry 5 46
−167%
123
+167%
Fortnite 160−170
−90.1%
300−350
+90.1%
Forza Horizon 4 173
−209%
535
+209%
Grand Theft Auto V 116
−50.9%
175
+50.9%
Metro Exodus 78
−126%
176
+126%
PLAYERUNKNOWN'S BATTLEGROUNDS 190−200
−11.4%
210−220
+11.4%
Red Dead Redemption 2 70−75
−110%
150−160
+110%
The Witcher 3: Wild Hunt 120−130
−38.1%
170−180
+38.1%
Valorant 140−150
−226%
450−500
+226%
World of Tanks 270−280
+0%
270−280
+0%

Full HD
Ultra Preset

Battlefield 5 95−100
−18.2%
110−120
+18.2%
Counter-Strike 2 49
−310%
201
+310%
Cyberpunk 2077 54
−85.2%
100
+85.2%
Dota 2 104
−71.2%
178
+71.2%
Far Cry 5 90−95
−63.4%
150−160
+63.4%
Forza Horizon 4 153
−208%
471
+208%
PLAYERUNKNOWN'S BATTLEGROUNDS 190−200
−11.4%
210−220
+11.4%
Valorant 144
−226%
450−500
+226%

1440p
High Preset

Dota 2 61
−170%
165
+170%
Elden Ring 70−75
−225%
230−240
+225%
Grand Theft Auto V 61
−170%
165
+170%
PLAYERUNKNOWN'S BATTLEGROUNDS 170−180
+0%
170−180
+0%
Red Dead Redemption 2 35−40
−166%
90−95
+166%
World of Tanks 230−240
−124%
500−550
+124%

1440p
Ultra Preset

Battlefield 5 65−70
−27.9%
85−90
+27.9%
Counter-Strike 2 35−40
−314%
145
+314%
Cyberpunk 2077 18
−294%
71
+294%
Far Cry 5 110−120
−39.1%
160−170
+39.1%
Forza Horizon 4 100
−260%
360
+260%
Metro Exodus 85
−71.8%
146
+71.8%
The Witcher 3: Wild Hunt 62
−284%
238
+284%
Valorant 100−110
−259%
350−400
+259%

4K
High Preset

Counter-Strike 2 35−40
−86.1%
67
+86.1%
Dota 2 58
−221%
186
+221%
Elden Ring 30−35
−288%
120−130
+288%
Grand Theft Auto V 58
−221%
186
+221%
Metro Exodus 28
−286%
108
+286%
PLAYERUNKNOWN'S BATTLEGROUNDS 110−120
−81.7%
200−210
+81.7%
Red Dead Redemption 2 21−24
−178%
60−65
+178%
The Witcher 3: Wild Hunt 58
−221%
186
+221%

4K
Ultra Preset

Battlefield 5 40−45
−122%
90−95
+122%
Counter-Strike 2 35−40
−19.4%
43
+19.4%
Cyberpunk 2077 7
−414%
36
+414%
Dota 2 80
−98.8%
159
+98.8%
Far Cry 5 50−55
−102%
100−110
+102%
Fortnite 50−55
−92%
95−100
+92%
Forza Horizon 4 52
−279%
197
+279%
Valorant 55−60
−302%
220−230
+302%

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

  • RX 7900 XTX is 148% faster in 1080p
  • RX 7900 XTX is 215% faster in 1440p
  • RX 7900 XTX is 235% 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 7900 XTX is 414% faster.

All in all, in popular games:

  • RX 7900 XTX is ahead in 61 test (97%)
  • there's a draw in 2 tests (3%)

Pros & cons summary


Performance score 36.05 80.70
Recency 31 May 2021 3 November 2022
Maximum RAM amount 8 GB 24 GB
Chip lithography 7 nm 5 nm
Power consumption (TDP) 100 Watt 355 Watt

RX 6600M has 255% lower power consumption.

RX 7900 XTX, on the other hand, has a 123.9% higher aggregate performance score, an age advantage of 1 year, a 200% higher maximum VRAM amount, and a 40% more advanced lithography process.

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

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


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 RX 6600M
Radeon RX 6600M
AMD Radeon RX 7900 XTX
Radeon RX 7900 XTX

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Community ratings

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