GeForce RTX 4090 D vs Radeon RX 6600 XT

Place in the ranking	93	15
Place by popularity	76	not in top-100
Cost-effectiveness evaluation	62.37	14.07
Power efficiency	18.43	12.06
Architecture	RDNA 2.0 (2020−2024)	Ada Lovelace (2022−2024)
GPU code name	Navi 23	AD102
Market segment	Desktop	Desktop
Release date	30 July 2021 (3 years ago)	28 December 2023 (1 year ago)
Launch price (MSRP)	$379	$1,599

Cost-effectiveness evaluation

The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.

RX 6600 XT has 343% better value for money than RTX 4090 D.

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	2048	14592
Core clock speed	1968 MHz	2280 MHz
Boost clock speed	2589 MHz	2520 MHz
Number of transistors	11,060 million	76,300 million
Manufacturing process technology	7 nm	5 nm
Power consumption (TDP)	160 Watt	425 Watt
Texture fill rate	331.4	1,149
Floating-point processing power	10.6 TFLOPS	73.54 TFLOPS
ROPs	64	176
TMUs	128	456
Tensor Cores	no data	456
Ray Tracing Cores	32	114

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	PCIe 4.0 x8	PCIe 4.0 x16
Length	190 mm	304 mm
Width	2-slot	3-slot
Supplementary power connectors	1x 8-pin	1x 16-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	GDDR6	GDDR6X
Maximum RAM amount	8 GB	24 GB
Memory bus width	128 Bit	384 Bit
Memory clock speed	2000 MHz	1313 MHz
Memory bandwidth	256.0 GB/s	1,008 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	1x HDMI, 2x DisplayPort	1x HDMI 2.1, 3x DisplayPort 1.4a
HDMI	+	+

API and SDK compatibility

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

DirectX	12.0 Ultimate (12_2)	12 Ultimate (12_2)
Shader Model	6.5	6.7
OpenGL	4.6	4.6
OpenCL	2.1	3.0
Vulkan	1.2	1.3
CUDA	-	8.9

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 6600 XT 41.17

RTX 4090 D 71.58
+73.9%

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 6600 XT 16499

RTX 4090 D 28686
+73.9%

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	134 −71.6%	230−240 +71.6%
1440p	78 −66.7%	130−140 +66.7%
4K	44 −70.5%	75−80 +70.5%

Cost per frame, $

1080p	2.83 +146%	6.95 −146%
1440p	4.86 +153%	12.30 −153%
4K	8.61 +148%	21.32 −148%

RX 6600 XT has 146% lower cost per frame in 1080p
RX 6600 XT has 153% lower cost per frame in 1440p
RX 6600 XT has 148% lower cost per frame in 4K

FPS performance in popular games

Full HD
Low Preset

Counter-Strike 2	120 −66.7%	200−210 +66.7%
Cyberpunk 2077	79 −64.6%	130−140 +64.6%

Full HD
Medium Preset

Battlefield 5	100−110 −65.1%	180−190 +65.1%
Counter-Strike 2	90−95 −63%	150−160 +63%
Cyberpunk 2077	75 −73.3%	130−140 +73.3%
Forza Horizon 4	257 −55.6%	400−450 +55.6%
Forza Horizon 5	123 −70.7%	210−220 +70.7%
Metro Exodus	131 −67.9%	220−230 +67.9%
Red Dead Redemption 2	80−85 −68.7%	140−150 +68.7%
Valorant	170−180 −73.4%	300−310 +73.4%

Full HD
High Preset

Battlefield 5	100−110 −65.1%	180−190 +65.1%
Counter-Strike 2	90−95 −63%	150−160 +63%
Cyberpunk 2077	75 −73.3%	130−140 +73.3%
Dota 2	147 −70.1%	250−260 +70.1%
Far Cry 5	65 −69.2%	110−120 +69.2%
Fortnite	180−190 −64.8%	300−310 +64.8%
Forza Horizon 4	209 −67.5%	350−400 +67.5%
Forza Horizon 5	115 −65.2%	190−200 +65.2%
Grand Theft Auto V	135 −70.4%	230−240 +70.4%
Metro Exodus	100 −70%	170−180 +70%
PLAYERUNKNOWN'S BATTLEGROUNDS	200−210 −69.1%	350−400 +69.1%
Red Dead Redemption 2	80−85 −68.7%	140−150 +68.7%
The Witcher 3: Wild Hunt	150−160 −67.7%	260−270 +67.7%
Valorant	170−180 −73.4%	300−310 +73.4%
World of Tanks	270−280 −61.3%	450−500 +61.3%

Full HD
Ultra Preset

Battlefield 5	100−110 −65.1%	180−190 +65.1%
Counter-Strike 2	67 −64.2%	110−120 +64.2%
Cyberpunk 2077	66 −66.7%	110−120 +66.7%
Dota 2	120 −66.7%	200−210 +66.7%
Far Cry 5	100−110 −66.7%	170−180 +66.7%
Forza Horizon 4	183 −63.9%	300−310 +63.9%
Forza Horizon 5	97 −64.9%	160−170 +64.9%
PLAYERUNKNOWN'S BATTLEGROUNDS	200−210 −69.1%	350−400 +69.1%
Valorant	170−180 −73.4%	300−310 +73.4%

1440p
High Preset

Dota 2	68 −61.8%	110−120 +61.8%
Grand Theft Auto V	68 −61.8%	110−120 +61.8%
PLAYERUNKNOWN'S BATTLEGROUNDS	170−180 −71.4%	300−310 +71.4%
Red Dead Redemption 2	40−45 −70.5%	75−80 +70.5%
World of Tanks	270−280 −65.4%	450−500 +65.4%

1440p
Ultra Preset

Battlefield 5	75−80 −68.8%	130−140 +68.8%
Cyberpunk 2077	38 −71.1%	65−70 +71.1%
Far Cry 5	130−140 −66.7%	230−240 +66.7%
Forza Horizon 4	118 −69.5%	200−210 +69.5%
Forza Horizon 5	71 −69%	120−130 +69%
Metro Exodus	98 −73.5%	170−180 +73.5%
The Witcher 3: Wild Hunt	75−80 −68.8%	130−140 +68.8%
Valorant	140−150 −71.4%	240−250 +71.4%

4K
High Preset

Counter-Strike 2	20−22 −50%	30−33 +50%
Dota 2	64 −71.9%	110−120 +71.9%
Grand Theft Auto V	64 −71.9%	110−120 +71.9%
Metro Exodus	34 −61.8%	55−60 +61.8%
PLAYERUNKNOWN'S BATTLEGROUNDS	140−150 −70.2%	240−250 +70.2%
Red Dead Redemption 2	27−30 −60.7%	45−50 +60.7%
The Witcher 3: Wild Hunt	64 −71.9%	110−120 +71.9%

4K
Ultra Preset

Battlefield 5	50−55 −66.7%	85−90 +66.7%
Counter-Strike 2	8 −50%	12−14 +50%
Cyberpunk 2077	13 −61.5%	21−24 +61.5%
Dota 2	86 −62.8%	140−150 +62.8%
Far Cry 5	65−70 −66.7%	110−120 +66.7%
Fortnite	60−65 −58.7%	100−105 +58.7%
Forza Horizon 4	61 −63.9%	100−105 +63.9%
Forza Horizon 5	36 −66.7%	60−65 +66.7%
Valorant	75−80 −73.3%	130−140 +73.3%

This is how RX 6600 XT and RTX 4090 D compete in popular games:

RTX 4090 D is 72% faster in 1080p
RTX 4090 D is 67% faster in 1440p
RTX 4090 D is 70% faster in 4K

Pros & cons summary

Performance score	41.17	71.58
Recency	30 July 2021	28 December 2023
Maximum RAM amount	8 GB	24 GB
Chip lithography	7 nm	5 nm
Power consumption (TDP)	160 Watt	425 Watt

RX 6600 XT has 165.6% lower power consumption.

RTX 4090 D, on the other hand, has a 73.9% higher aggregate performance score, an age advantage of 2 years, a 200% higher maximum VRAM amount, and a 40% more advanced lithography process.

The GeForce RTX 4090 D is our recommended choice as it beats the Radeon RX 6600 XT in performance tests.

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