RX 6600 XT vs RX 580 Mobile

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Combined performance score

RX 580 Mobile
20.49

RX 6600 XT outperforms RX 580 Mobile by 107% in our combined benchmark results.

General info

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

Place in performance ranking24878
Place by popularitynot in top-10056
Value for money22.0546.75
ArchitecturePolaris (2016−2019)Navi / RDNA2 (2020−2022)
GPU code namePolarisNavi 23
Market segmentLaptopDesktop
Release date18 April 2017 (6 years old)30 July 2021 (2 years old)
Launch price (MSRP)$301.69 $379
Current price$410 (1.4x MSRP)$283 (0.7x MSRP)
Value for money

Performance to price ratio. The higher, the better.

RX 6600 XT has 112% better value for money than RX 580 Mobile.

Technical specs

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 cores23042048
Core clock speed1000 MHz1968 MHz
Boost clock speed1077 MHz2589 MHz
Number of transistors5,700 million11,060 million
Manufacturing process technology14 nm7 nm
Power consumption (TDP)100 Watt160 (TGP) Watt
Texture fill rate155.1331.4
Floating-point performance4,963 gflopsno data

Size and compatibility

Information on Radeon RX 580 Mobile and Radeon RX 6600 XT compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Laptop sizelargeno data
InterfaceMXM-B (3.0)PCIe 4.0 x8
Lengthno data190 mm
Widthno data2-slot
Supplementary power connectorsno data1x 8-pin

Memory

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 typeGDDR5GDDR6
Maximum RAM amount8 GB8 GB
Memory bus width256 Bit128 Bit
Memory clock speed8000 MHz16000 MHz
Memory bandwidth256.0 GB/s256.0 GB/s
Shared memory--

Video outputs and ports

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, 2x DisplayPort
HDMIno data+

API support

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

DirectX12 (12_0)12.0 Ultimate (12_2)
Shader Model6.46.5
OpenGL4.64.6
OpenCL2.02.1
Vulkan1.2.1311.2

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.

RX 580 Mobile 20.49
RX 6600 XT 42.48
+107%

RX 6600 XT outperforms RX 580 Mobile by 107% in our combined benchmark results.


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.

Benchmark coverage: 17%

RX 580 Mobile 15223
RX 6600 XT 39051
+157%

RX 6600 XT outperforms RX 580 Mobile by 157% in 3DMark 11 Performance GPU.

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.

Benchmark coverage: 14%

RX 580 Mobile 11261
RX 6600 XT 28342
+152%

RX 6600 XT outperforms RX 580 Mobile by 152% in 3DMark Fire Strike Graphics.

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.

Benchmark coverage: 14%

RX 580 Mobile 69325
RX 6600 XT 156297
+125%

RX 6600 XT outperforms RX 580 Mobile by 125% in 3DMark Cloud Gate GPU.

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.

Benchmark coverage: 8%

RX 580 Mobile 290090
RX 6600 XT 472371
+62.8%

RX 6600 XT outperforms RX 580 Mobile by 63% in 3DMark Ice Storm GPU.

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 HD78
−69.2%
132
+69.2%
1440p35−40
−111%
74
+111%
4K30
−36.7%
41
+36.7%

Performance in popular games

Full HD
Low Preset

Cyberpunk 2077 30−35
−139%
79
+139%

Full HD
Medium Preset

Assassin's Creed Odyssey 40−45
−76.2%
70−75
+76.2%
Assassin's Creed Valhalla 35−40
−258%
129
+258%
Battlefield 5 65−70
−76.5%
120−130
+76.5%
Call of Duty: Modern Warfare 50−55
−119%
110−120
+119%
Cyberpunk 2077 30−35
−136%
78
+136%
Far Cry 5 50−55
−180%
151
+180%
Far Cry New Dawn 55−60
−138%
131
+138%
Forza Horizon 4 70−75
−82.9%
120−130
+82.9%
Hitman 3 60−65
−268%
221
+268%
Horizon Zero Dawn 40−45
−211%
137
+211%
Red Dead Redemption 2 30−35
−100%
65−70
+100%
Shadow of the Tomb Raider 40−45
−277%
166
+277%
Watch Dogs: Legion 35−40
−208%
120
+208%

Full HD
High Preset

Assassin's Creed Odyssey 40−45
−76.2%
70−75
+76.2%
Assassin's Creed Valhalla 35−40
−194%
106
+194%
Battlefield 5 65−70
−76.5%
120−130
+76.5%
Call of Duty: Modern Warfare 50−55
−119%
110−120
+119%
Cyberpunk 2077 30−35
−130%
76
+130%
Far Cry 5 50−55
−161%
141
+161%
Far Cry New Dawn 55−60
−131%
127
+131%
Forza Horizon 4 70−75
−82.9%
120−130
+82.9%
Hitman 3 60−65
−205%
183
+205%
Horizon Zero Dawn 40−45
−148%
109
+148%
Metro Exodus 30−35
−188%
95
+188%
Red Dead Redemption 2 30−35
−100%
65−70
+100%
Shadow of the Tomb Raider 40−45
−223%
142
+223%
The Witcher 3: Wild Hunt 68
−159%
176
+159%
Watch Dogs: Legion 35−40
−167%
104
+167%

Full HD
Ultra Preset

Assassin's Creed Odyssey 40−45
−76.2%
70−75
+76.2%
Assassin's Creed Valhalla 35−40
−108%
75
+108%
Battlefield 5 65−70
−76.5%
120−130
+76.5%
Cyberpunk 2077 30−35
−109%
69
+109%
Far Cry 5 50−55
−146%
133
+146%
Far Cry New Dawn 55−60
−104%
112
+104%
Forza Horizon 4 70−75
−82.9%
120−130
+82.9%
The Witcher 3: Wild Hunt 37
−168%
99
+168%
Watch Dogs: Legion 35−40
−56.4%
61
+56.4%

1440p
High Preset

Call of Duty: Modern Warfare 30−35
−132%
70−75
+132%
Hitman 3 30−35
−239%
112
+239%
Horizon Zero Dawn 27−30
−181%
76
+181%
Metro Exodus 20−22
−180%
56
+180%
Red Dead Redemption 2 14−16
−133%
35−40
+133%
Shadow of the Tomb Raider 27−30
−211%
84
+211%

1440p
Ultra Preset

Assassin's Creed Odyssey 21−24
−109%
45−50
+109%
Assassin's Creed Valhalla 18−20
−195%
56
+195%
Battlefield 5 45−50
−91.3%
85−90
+91.3%
Cyberpunk 2077 12−14
−233%
40
+233%
Far Cry 5 35−40
−200%
105
+200%
Far Cry New Dawn 35−40
−151%
98
+151%
Forza Horizon 4 40−45
−122%
90−95
+122%
The Witcher 3: Wild Hunt 21−24
−178%
60−65
+178%
Watch Dogs: Legion 14−16
−193%
44
+193%

4K
High Preset

Call of Duty: Modern Warfare 14−16
−167%
40−45
+167%
Hitman 3 18−20
−200%
57
+200%
Horizon Zero Dawn 12−14
−53.8%
20
+53.8%
Metro Exodus 12−14
−183%
34
+183%
Red Dead Redemption 2 10−12
−109%
21−24
+109%
Shadow of the Tomb Raider 14−16
−186%
40
+186%
The Witcher 3: Wild Hunt 24
−125%
54
+125%

4K
Ultra Preset

Assassin's Creed Odyssey 12−14
−123%
27−30
+123%
Assassin's Creed Valhalla 10−12
−155%
28
+155%
Battlefield 5 24−27
−117%
50−55
+117%
Cyberpunk 2077 4−5
−250%
14
+250%
Far Cry 5 16−18
−200%
51
+200%
Far Cry New Dawn 20−22
−165%
53
+165%
Forza Horizon 4 27−30
−107%
60−65
+107%
Watch Dogs: Legion 9−10
−167%
24
+167%

This is how RX 580 Mobile and RX 6600 XT compete in popular games:

1080p resolution:

  • RX 6600 XT is 69.2% faster than RX 580 Mobile

1440p resolution:

  • RX 6600 XT is 111% faster than RX 580 Mobile

4K resolution:

  • RX 6600 XT is 36.7% faster than RX 580 Mobile

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

  • in Shadow of the Tomb Raider, with 1080p resolution and the Medium Preset, the RX 6600 XT is 277% faster than the RX 580 Mobile.

All in all, in popular games:

  • Without exception, RX 6600 XT surpassed RX 580 Mobile in all 68 of our tests.

Advantages and disadvantages


Performance score 20.49 42.48
Recency 18 April 2017 30 July 2021
Cost $301.69 $379
Chip lithography 14 nm 7 nm
Power consumption (TDP) 100 Watt 160 Watt

The Radeon RX 6600 XT is our recommended choice as it beats the Radeon RX 580 Mobile in performance tests.

Be aware that Radeon RX 580 Mobile 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.

User ratings

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AMD Radeon RX 580 Mobile
Radeon RX 580 Mobile
AMD Radeon RX 6600 XT
Radeon RX 6600 XT

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