Radeon RX 6600 XT vs GeForce GTX 780M Mac Edition

Place in performance ranking	533	78
Place by popularity	not in top-100	92
Cost-effectiveness evaluation	1.13	48.74
Architecture	Kepler (2012−2018)	Navi / RDNA2 (2020−2022)
GPU code name	GK104	Navi 23
Market segment	Desktop	Desktop
Release date	8 November 2013 (10 years ago)	30 July 2021 (2 years ago)
Launch price (MSRP)	no data	$379
Current price	$149	$283 (0.7x MSRP)

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

RX 6600 XT has 4213% better value for money than GTX 780M Mac Edition.

Detailed specifications

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 cores	1536	2048
Core clock speed	771 MHz	1968 MHz
Boost clock speed	797 MHz	2589 MHz
Number of transistors	3,540 million	11,060 million
Manufacturing process technology	28 nm	7 nm
Power consumption (TDP)	122 Watt	160 (TGP) Watt
Texture fill rate	102.0	331.4
Floating-point performance	2,448 gflops	no data

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).

Interface	MXM-B (3.0)	PCIe 4.0 x8
Length	no data	190 mm
Width	MXM Module	2-slot
Supplementary power connectors	no data	1x 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 type	GDDR5	GDDR6
Maximum RAM amount	4 GB	8 GB
Memory bus width	256 Bit	128 Bit
Memory clock speed	5000 MHz	16000 MHz
Memory bandwidth	160.0 GB/s	256.0 GB/s
Shared memory	no data	-

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	1x HDMI, 2x DisplayPort
HDMI	no data	+

API compatibility

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

DirectX	12 (11_0)	12.0 Ultimate (12_2)
Shader Model	5.1	6.5
OpenGL	4.6	4.6
OpenCL	1.2	2.1
Vulkan	1.1.126	1.2
CUDA	3.0	no data

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	18−21 −611%	128 +611%
1440p	10−12 −650%	75 +650%
4K	6−7 −583%	41 +583%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

79
−533%

500−550

+533%

Full HD
Medium Preset

Assassin's Creed Odyssey	70−75 −508%	450−500 +508%
Assassin's Creed Valhalla	129 −520%	800−850 +520%
Battlefield 5	130−140 −520%	850−900 +520%
Call of Duty: Modern Warfare	85−90 −481%	500−550 +481%
Cyberpunk 2077	78 −477%	450−500 +477%
Far Cry 5	90−95 −504%	550−600 +504%
Far Cry New Dawn	100−110 −519%	650−700 +519%
Forza Horizon 4	150−160 −533%	1000−1050 +533%
Hitman 3	108 −502%	650−700 +502%
Horizon Zero Dawn	289 −523%	1800−1850 +523%
Metro Exodus	110−120 −536%	750−800 +536%
Red Dead Redemption 2	100−105 −500%	600−650 +500%
Shadow of the Tomb Raider	257 −523%	1600−1650 +523%
Watch Dogs: Legion	120 −525%	750−800 +525%

Full HD
High Preset

Assassin's Creed Odyssey	70−75 −508%	450−500 +508%
Assassin's Creed Valhalla	106 −513%	650−700 +513%
Battlefield 5	130−140 −520%	850−900 +520%
Call of Duty: Modern Warfare	85−90 −481%	500−550 +481%
Cyberpunk 2077	76 −492%	450−500 +492%
Far Cry 5	90−95 −504%	550−600 +504%
Far Cry New Dawn	100−110 −519%	650−700 +519%
Forza Horizon 4	150−160 −533%	1000−1050 +533%
Hitman 3	94 −538%	600−650 +538%
Horizon Zero Dawn	170−180 −532%	1100−1150 +532%
Metro Exodus	64 −525%	400−450 +525%
Red Dead Redemption 2	100−105 −500%	600−650 +500%
Shadow of the Tomb Raider	209 −522%	1300−1350 +522%
The Witcher 3: Wild Hunt	176 −525%	1100−1150 +525%
Watch Dogs: Legion	100−110 −537%	650−700 +537%

Full HD
Ultra Preset

Assassin's Creed Odyssey	70−75 −508%	450−500 +508%
Assassin's Creed Valhalla	75 −500%	450−500 +500%
Call of Duty: Modern Warfare	85−90 −481%	500−550 +481%
Cyberpunk 2077	69 −480%	400−450 +480%
Far Cry 5	90−95 −504%	550−600 +504%
Forza Horizon 4	150−160 −533%	1000−1050 +533%
Horizon Zero Dawn	157 −537%	1000−1050 +537%
Shadow of the Tomb Raider	183 −528%	1150−1200 +528%
The Witcher 3: Wild Hunt	99 −506%	600−650 +506%
Watch Dogs: Legion	61 −474%	350−400 +474%

Full HD
Epic Preset

Red Dead Redemption 2

100−105

−500%

600−650
+500%

1440p
High Preset

Battlefield 5	80−85 −502%	500−550 +502%
Far Cry New Dawn	100−105 −500%	600−650 +500%

1440p
Ultra Preset

Assassin's Creed Odyssey	45−50 −538%	300−310 +538%
Assassin's Creed Valhalla	56 −525%	350−400 +525%
Call of Duty: Modern Warfare	65−70 −506%	400−450 +506%
Cyberpunk 2077	40 −525%	250−260 +525%
Far Cry 5	105 −519%	650−700 +519%
Forza Horizon 4	90−95 −504%	550−600 +504%
Hitman 3	67 −497%	400−450 +497%
Horizon Zero Dawn	116 −503%	700−750 +503%
Metro Exodus	98 −512%	600−650 +512%
Shadow of the Tomb Raider	118 −536%	750−800 +536%
The Witcher 3: Wild Hunt	60−65 −525%	400−450 +525%
Watch Dogs: Legion	44 −536%	280−290 +536%

1440p
Epic Preset

Red Dead Redemption 2

70−75
−508%

450−500

+508%

4K
High Preset

Battlefield 5	40−45 −528%	270−280 +528%
Far Cry New Dawn	35−40 −522%	230−240 +522%
Hitman 3	33 −536%	210−220 +536%
Horizon Zero Dawn	55−60 −536%	350−400 +536%
Shadow of the Tomb Raider	40 −525%	250−260 +525%
The Witcher 3: Wild Hunt	54 −456%	300−310 +456%

4K
Ultra Preset

Assassin's Creed Odyssey	30−33 −533%	190−200 +533%
Assassin's Creed Valhalla	28 −507%	170−180 +507%
Call of Duty: Modern Warfare	27−30 −507%	170−180 +507%
Cyberpunk 2077	14 −507%	85−90 +507%
Far Cry 5	24−27 −500%	150−160 +500%
Forza Horizon 4	60−65 −483%	350−400 +483%
Horizon Zero Dawn	66 −506%	400−450 +506%
Metro Exodus	53 −466%	300−310 +466%
Watch Dogs: Legion	24 −525%	150−160 +525%

4K
Epic Preset

Red Dead Redemption 2

35−40
−515%

240−250

+515%

This is how GTX 780M Mac Edition and RX 6600 XT compete in popular games:

RX 6600 XT is 611% faster in 1080p
RX 6600 XT is 650% faster in 1440p
RX 6600 XT is 583% faster in 4K

Pros & cons summary

Performance score	6.69	42.72
Recency	8 November 2013	30 July 2021
Maximum RAM amount	4 GB	8 GB
Chip lithography	28 nm	7 nm
Power consumption (TDP)	122 Watt	160 Watt