Radeon RX 6600M vs GeForce GTX 675MX

Place in the ranking	548	134
Place by popularity	not in top-100	not in top-100
Power efficiency	4.88	24.71
Architecture	Kepler (2012−2018)	RDNA 2.0 (2020−2024)
GPU code name	GK104	Navi 23
Market segment	Laptop	Laptop
Release date	1 October 2012 (12 years ago)	31 May 2021 (3 years ago)

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	960	1792
Core clock speed	600 MHz	2068 MHz
Boost clock speed	no data	2416 MHz
Number of transistors	3,540 million	11,060 million
Manufacturing process technology	28 nm	7 nm
Power consumption (TDP)	100 Watt	100 Watt
Texture fill rate	52.32	270.6
Floating-point processing power	1.256 TFLOPS	8.659 TFLOPS
ROPs	32	64
TMUs	80	112
Ray Tracing Cores	no data	28

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	medium sized
Bus support	PCI Express 2.0	no data
Interface	MXM-B (3.0)	PCIe 4.0 x8
Supplementary power connectors	None	None
SLI options	+	-

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	2 GB	8 GB
Memory bus width	256 Bit	128 Bit
Memory clock speed	1800 MHz	1750 MHz
Memory bandwidth	115.2 GB/s	224.0 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	No outputs
HDMI	+	-
HDCP	+	-
Maximum VGA resolution	Up to 2048x1536	no data

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

Optimus

API compatibility

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

DirectX	12 API	12 Ultimate (12_2)
Shader Model	5.1	6.5
OpenGL	4.5	4.6
OpenCL	1.1	2.1
Vulkan	1.1.126	1.3
CUDA	+	-

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.

GTX 675MX 7.04

RX 6600M 35.68
+407%

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.

GTX 675MX 2716

RX 6600M 13766
+407%

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.

GTX 675MX 3979

RX 6600M 31868
+701%

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.

GTX 675MX 18950

RX 6600M 72686
+284%

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.

GTX 675MX 2831

RX 6600M 23525
+731%

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.

GTX 675MX 20325

RX 6600M 144612
+611%

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	48 −104%	98 +104%
1440p	10−12 −450%	55 +450%
4K	6−7 −417%	31 +417%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

10−12

−900%

110
+900%

Full HD
Medium Preset

Assassin's Creed Odyssey	16−18 −535%	108 +535%
Assassin's Creed Valhalla	9−10 −956%	95 +956%
Battlefield 5	20−22 −475%	110−120 +475%
Call of Duty: Modern Warfare	14−16 −414%	70−75 +414%
Cyberpunk 2077	10−12 −718%	90 +718%
Far Cry 5	14−16 −420%	75−80 +420%
Far Cry New Dawn	18−20 −368%	85−90 +368%
Forza Horizon 4	45−50 −304%	180−190 +304%
Hitman 3	14−16 −436%	75−80 +436%
Horizon Zero Dawn	40−45 −268%	150−160 +268%
Metro Exodus	18−20 −511%	110−120 +511%
Red Dead Redemption 2	18−20 −347%	85−90 +347%
Shadow of the Tomb Raider	21−24 −452%	120−130 +452%
Watch Dogs: Legion	50−55 −132%	120−130 +132%

Full HD
High Preset

Assassin's Creed Odyssey	16−18 −1071%	199 +1071%
Assassin's Creed Valhalla	9−10 −778%	79 +778%
Battlefield 5	20−22 −475%	110−120 +475%
Call of Duty: Modern Warfare	14−16 −414%	70−75 +414%
Cyberpunk 2077	10−12 −555%	72 +555%
Far Cry 5	14−16 −420%	75−80 +420%
Far Cry New Dawn	18−20 −368%	85−90 +368%
Forza Horizon 4	45−50 −304%	180−190 +304%
Hitman 3	14−16 −436%	75−80 +436%
Horizon Zero Dawn	40−45 −268%	150−160 +268%
Metro Exodus	18−20 −511%	110−120 +511%
Red Dead Redemption 2	18−20 −347%	85−90 +347%
Shadow of the Tomb Raider	21−24 −652%	173 +652%
The Witcher 3: Wild Hunt	21−24 −252%	70−75 +252%
Watch Dogs: Legion	50−55 −132%	120−130 +132%

Full HD
Ultra Preset

Assassin's Creed Odyssey	16−18 −365%	79 +365%
Assassin's Creed Valhalla	9−10 −667%	69 +667%
Call of Duty: Modern Warfare	14−16 −414%	70−75 +414%
Cyberpunk 2077	10−12 −455%	61 +455%
Far Cry 5	14−16 −420%	75−80 +420%
Forza Horizon 4	45−50 −273%	168 +273%
Hitman 3	14−16 −436%	75−80 +436%
Horizon Zero Dawn	40−45 −227%	134 +227%
Shadow of the Tomb Raider	21−24 −565%	153 +565%
The Witcher 3: Wild Hunt	21−24 −305%	85 +305%
Watch Dogs: Legion	50−55 −11.3%	59 +11.3%

Full HD
Epic Preset

Red Dead Redemption 2

18−20

−347%

85−90
+347%

1440p
High Preset

Battlefield 5	12−14 −423%	65−70 +423%
Far Cry New Dawn	10−11 −440%	50−55 +440%

1440p
Ultra Preset

Assassin's Creed Odyssey	6−7 −750%	51 +750%
Assassin's Creed Valhalla	2−3 −2500%	52 +2500%
Call of Duty: Modern Warfare	6−7 −583%	40−45 +583%
Cyberpunk 2077	3−4 −1100%	36 +1100%
Far Cry 5	8−9 −413%	40−45 +413%
Forza Horizon 4	21−24 −778%	200−210 +778%
Hitman 3	10−11 −350%	45−50 +350%
Horizon Zero Dawn	14−16 −553%	98 +553%
Metro Exodus	7−8 −1114%	85 +1114%
Shadow of the Tomb Raider	4−5 −2400%	100 +2400%
The Witcher 3: Wild Hunt	6−7 −933%	62 +933%
Watch Dogs: Legion	40−45 −311%	180−190 +311%

1440p
Epic Preset

Red Dead Redemption 2

12−14

−408%

60−65
+408%

4K
High Preset

Battlefield 5	6−7 −483%	35−40 +483%
Far Cry New Dawn	5−6 −480%	27−30 +480%
Hitman 3	3−4 −867%	27−30 +867%
Horizon Zero Dawn	21−24 −710%	170−180 +710%
Metro Exodus	4−5 −1000%	40−45 +1000%
The Witcher 3: Wild Hunt	3−4 −1367%	44 +1367%

4K
Ultra Preset

Assassin's Creed Odyssey	4−5 −625%	29 +625%
Assassin's Creed Valhalla	3−4 −800%	27 +800%
Call of Duty: Modern Warfare	3−4 −633%	21−24 +633%
Cyberpunk 2077	1−2 −1300%	14 +1300%
Far Cry 5	3−4 −567%	20−22 +567%
Forza Horizon 4	7−8 −957%	74 +957%
Shadow of the Tomb Raider	2−3 −2500%	52 +2500%
Watch Dogs: Legion	2−3 −950%	21 +950%

4K
Epic Preset

Red Dead Redemption 2

7−8

−343%

30−35
+343%

This is how GTX 675MX and RX 6600M compete in popular games:

RX 6600M is 104% faster in 1080p
RX 6600M is 450% faster in 1440p
RX 6600M is 417% faster in 4K

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

in Assassin's Creed Valhalla, with 1440p resolution and the Ultra Preset, the RX 6600M is 2500% faster.

All in all, in popular games:

Without exception, RX 6600M surpassed GTX 675MX in all 72 of our tests.

Pros & cons summary

Performance score	7.04	35.68
Recency	1 October 2012	31 May 2021
Maximum RAM amount	2 GB	8 GB
Chip lithography	28 nm	7 nm

RX 6600M has a 406.8% higher aggregate performance score, an age advantage of 8 years, a 300% higher maximum VRAM amount, and a 300% more advanced lithography process.

The Radeon RX 6600M is our recommended choice as it beats the GeForce GTX 675MX in performance tests.

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