Radeon RX 7800 XT vs RX 6600M

VS

Aggregate performance score

We've compared Radeon RX 6600M with Radeon RX 7800 XT, including specs and performance data.

RX 6600M
2021
8 GB GDDR6, 100 Watt
35.86

RX 7800 XT outperforms RX 6600M by an impressive 76% based on our aggregate benchmark results.

Primary details

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

Place in the ranking13630
Place by popularitynot in top-10040
Cost-effectiveness evaluationno data68.04
Power efficiency24.5816.46
ArchitectureRDNA 2.0 (2020−2024)RDNA 3.0 (2022−2024)
GPU code nameNavi 23Navi 32
Market segmentLaptopDesktop
Release date31 May 2021 (3 years ago)25 August 2023 (1 year ago)
Launch price (MSRP)no data$499

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 cores17923840
Core clock speed2068 MHz1295 MHz
Boost clock speed2416 MHz2430 MHz
Number of transistors11,060 million28,100 million
Manufacturing process technology7 nm5 nm
Power consumption (TDP)100 Watt263 Watt
Texture fill rate270.6583.2
Floating-point processing power8.659 TFLOPS37.32 TFLOPS
ROPs6496
TMUs112240
Ray Tracing Cores2860

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 data267 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 GB16 GB
Memory bus width128 Bit256 Bit
Memory clock speed1750 MHz2438 MHz
Memory bandwidth224.0 GB/s624.1 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, 3x DisplayPort 2.1
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 35.86
RX 7800 XT 63.15
+76.1%

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 13819
RX 7800 XT 24333
+76.1%

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 7800 XT 65611
+106%

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 7800 XT 134322
+84.8%

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 7800 XT 49707
+111%

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 7800 XT 202773
+40.2%

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 7800 XT 745990
+55.6%

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
−118%
216
+118%
1440p53
−130%
122
+130%
4K31
−126%
70
+126%

Cost per frame, $

1080pno data2.31
1440pno data4.09
4Kno data7.13

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077 110
−135%
258
+135%

Full HD
Medium Preset

Assassin's Creed Odyssey 108
−64.8%
178
+64.8%
Assassin's Creed Valhalla 95
−134%
222
+134%
Battlefield 5 110−120
−73%
190−200
+73%
Call of Duty: Modern Warfare 70−75
−58.3%
110−120
+58.3%
Cyberpunk 2077 90
−114%
193
+114%
Far Cry 5 75−80
−44.9%
110−120
+44.9%
Far Cry New Dawn 85−90
−69.7%
150−160
+69.7%
Forza Horizon 4 180−190
−26.4%
230−240
+26.4%
Hitman 3 75−80
−65.3%
120−130
+65.3%
Horizon Zero Dawn 150−160
−54.3%
230−240
+54.3%
Metro Exodus 110−120
−33.6%
150−160
+33.6%
Red Dead Redemption 2 85−90
−38.8%
110−120
+38.8%
Shadow of the Tomb Raider 120−130
−102%
250−260
+102%
Watch Dogs: Legion 120−130
−22%
150−160
+22%

Full HD
High Preset

Assassin's Creed Odyssey 199
−31.2%
261
+31.2%
Assassin's Creed Valhalla 79
−129%
181
+129%
Battlefield 5 110−120
−73%
190−200
+73%
Call of Duty: Modern Warfare 70−75
−58.3%
110−120
+58.3%
Cyberpunk 2077 72
−124%
161
+124%
Far Cry 5 75−80
−44.9%
110−120
+44.9%
Far Cry New Dawn 85−90
−69.7%
150−160
+69.7%
Forza Horizon 4 180−190
−26.4%
230−240
+26.4%
Hitman 3 75−80
−65.3%
120−130
+65.3%
Horizon Zero Dawn 150−160
−54.3%
230−240
+54.3%
Metro Exodus 110−120
−33.6%
150−160
+33.6%
Red Dead Redemption 2 85−90
−38.8%
110−120
+38.8%
Shadow of the Tomb Raider 173
−130%
398
+130%
The Witcher 3: Wild Hunt 70−75
−78.4%
130−140
+78.4%
Watch Dogs: Legion 120−130
−22%
150−160
+22%

Full HD
Ultra Preset

Assassin's Creed Odyssey 79
−64.6%
130
+64.6%
Assassin's Creed Valhalla 69
−129%
158
+129%
Call of Duty: Modern Warfare 70−75
−58.3%
110−120
+58.3%
Cyberpunk 2077 61
−143%
148
+143%
Far Cry 5 75−80
−44.9%
110−120
+44.9%
Forza Horizon 4 168
−32.1%
222
+32.1%
Hitman 3 75−80
−65.3%
120−130
+65.3%
Horizon Zero Dawn 134
−104%
274
+104%
Shadow of the Tomb Raider 153
−122%
340
+122%
The Witcher 3: Wild Hunt 85
−135%
200
+135%
Watch Dogs: Legion 59
−146%
145
+146%

Full HD
Epic Preset

Red Dead Redemption 2 85−90
−38.8%
110−120
+38.8%

1440p
High Preset

Battlefield 5 65−70
−106%
140−150
+106%
Far Cry New Dawn 50−55
−81.5%
95−100
+81.5%

1440p
Ultra Preset

Assassin's Creed Odyssey 51
−133%
119
+133%
Assassin's Creed Valhalla 52
−138%
124
+138%
Call of Duty: Modern Warfare 40−45
−80.5%
70−75
+80.5%
Cyberpunk 2077 36
−169%
97
+169%
Far Cry 5 40−45
−78%
70−75
+78%
Forza Horizon 4 200−210
−34.2%
270−280
+34.2%
Hitman 3 45−50
−100%
90−95
+100%
Horizon Zero Dawn 98
−121%
217
+121%
Metro Exodus 85
−74.1%
148
+74.1%
Shadow of the Tomb Raider 100
−143%
243
+143%
The Witcher 3: Wild Hunt 62
−137%
147
+137%
Watch Dogs: Legion 180−190
−29.8%
230−240
+29.8%

1440p
Epic Preset

Red Dead Redemption 2 60−65
−72.1%
100−110
+72.1%

4K
High Preset

Battlefield 5 35−40
−109%
70−75
+109%
Far Cry New Dawn 27−30
−110%
60−65
+110%
Hitman 3 27−30
−86.2%
50−55
+86.2%
Horizon Zero Dawn 170−180
−31.2%
220−230
+31.2%
Metro Exodus 40−45
−114%
90−95
+114%
The Witcher 3: Wild Hunt 44
−168%
118
+168%

4K
Ultra Preset

Assassin's Creed Odyssey 29
−207%
89
+207%
Assassin's Creed Valhalla 27
−167%
72
+167%
Call of Duty: Modern Warfare 21−24
−105%
45−50
+105%
Cyberpunk 2077 14
−214%
44
+214%
Far Cry 5 20−22
−115%
40−45
+115%
Forza Horizon 4 74
−122%
164
+122%
Shadow of the Tomb Raider 52
−150%
130
+150%
Watch Dogs: Legion 21
−219%
67
+219%

4K
Epic Preset

Red Dead Redemption 2 30−35
−106%
60−65
+106%

This is how RX 6600M and RX 7800 XT compete in popular games:

  • RX 7800 XT is 118% faster in 1080p
  • RX 7800 XT is 130% faster in 1440p
  • RX 7800 XT is 126% faster in 4K

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

  • in Watch Dogs: Legion, with 4K resolution and the Ultra Preset, the RX 7800 XT is 219% faster.

All in all, in popular games:

  • Without exception, RX 7800 XT surpassed RX 6600M in all 72 of our tests.

Pros & cons summary


Performance score 35.86 63.15
Recency 31 May 2021 25 August 2023
Maximum RAM amount 8 GB 16 GB
Chip lithography 7 nm 5 nm
Power consumption (TDP) 100 Watt 263 Watt

RX 6600M has 163% lower power consumption.

RX 7800 XT, on the other hand, has a 76.1% 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 7800 XT 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 7800 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.

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AMD Radeon RX 6600M
Radeon RX 6600M
AMD Radeon RX 7800 XT
Radeon RX 7800 XT

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


4.3 1002 votes

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4.3 2963 votes

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Questions & comments

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