Radeon RX 6400 vs RX 7900 XT

Place in the ranking	14	276
Place by popularity	not in top-100	100
Cost-effectiveness evaluation	37.56	53.66
Power efficiency	17.39	25.93
Architecture	RDNA 3.0 (2022−2024)	RDNA 2.0 (2020−2024)
GPU code name	Navi 31	Navi 24
Market segment	Desktop	Desktop
Release date	3 November 2022 (2 years ago)	19 January 2022 (2 years ago)
Launch price (MSRP)	$899	$159

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

RX 6400 has 43% better value for money than RX 7900 XT.

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	5376	768
Core clock speed	1387 MHz	1923 MHz
Boost clock speed	2394 MHz	2321 MHz
Number of transistors	57,700 million	5,400 million
Manufacturing process technology	5 nm	6 nm
Power consumption (TDP)	300 Watt	53 Watt
Texture fill rate	804.4	111.4
Floating-point processing power	51.48 TFLOPS	3.565 TFLOPS
ROPs	192	32
TMUs	336	48
Ray Tracing Cores	84	12

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 x16	PCIe 4.0 x4
Length	276 mm	no data
Width	2-slot	1-slot
Supplementary power connectors	2x 8-pin	None

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	GDDR6
Maximum RAM amount	20 GB	4 GB
Memory bus width	320 Bit	64 Bit
Memory clock speed	2500 MHz	2000 MHz
Memory bandwidth	800.0 GB/s	128.0 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	1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C	1x HDMI 2.1, 1x DisplayPort 1.4a
HDMI	+	+

API compatibility

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

DirectX	12 Ultimate (12_2)	12 Ultimate (12_2)
Shader Model	6.7	6.7
OpenGL	4.6	4.6
OpenCL	2.2	2.2
Vulkan	1.3	1.3

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 7900 XT 74.83
+280%

RX 6400 19.71

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 7900 XT 28868
+280%

RX 6400 7605

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	207 +314%	50−55 −314%
1440p	137 +291%	35−40 −291%
4K	89 +324%	21−24 −324%

Cost per frame, $

1080p	4.34	3.18
1440p	6.56	4.54
4K	10.10	7.57

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

237

+295%

60−65
−295%

Full HD
Medium Preset

Assassin's Creed Odyssey	150−160 +283%	40−45 −283%
Assassin's Creed Valhalla	130−140 +286%	35−40 −286%
Battlefield 5	240−250 +300%	60−65 −300%
Call of Duty: Modern Warfare	120−130 +300%	30−33 −300%
Cyberpunk 2077	212 +285%	55−60 −285%
Far Cry 5	110−120 +293%	30−33 −293%
Far Cry New Dawn	180−190 +311%	45−50 −311%
Forza Horizon 4	240−250 +307%	60−65 −307%
Hitman 3	120−130 +330%	30−33 −330%
Horizon Zero Dawn	260−270 +283%	70−75 −283%
Metro Exodus	150−160 +288%	40−45 −288%
Red Dead Redemption 2	120−130 +310%	30−33 −310%
Shadow of the Tomb Raider	300−350 +300%	80−85 −300%
Watch Dogs: Legion	150−160 +283%	40−45 −283%

Full HD
High Preset

Assassin's Creed Odyssey	150−160 +283%	40−45 −283%
Assassin's Creed Valhalla	130−140 +286%	35−40 −286%
Battlefield 5	240−250 +300%	60−65 −300%
Call of Duty: Modern Warfare	120−130 +300%	30−33 −300%
Cyberpunk 2077	190 +280%	50−55 −280%
Far Cry 5	110−120 +293%	30−33 −293%
Far Cry New Dawn	180−190 +311%	45−50 −311%
Forza Horizon 4	240−250 +307%	60−65 −307%
Hitman 3	120−130 +330%	30−33 −330%
Horizon Zero Dawn	260−270 +283%	70−75 −283%
Metro Exodus	150−160 +288%	40−45 −288%
Red Dead Redemption 2	120−130 +310%	30−33 −310%
Shadow of the Tomb Raider	492 +310%	120−130 −310%
The Witcher 3: Wild Hunt	160−170 +305%	40−45 −305%
Watch Dogs: Legion	150−160 +283%	40−45 −283%

Full HD
Ultra Preset

Assassin's Creed Odyssey	150−160 +283%	40−45 −283%
Assassin's Creed Valhalla	130−140 +286%	35−40 −286%
Call of Duty: Modern Warfare	120−130 +300%	30−33 −300%
Cyberpunk 2077	179 +298%	45−50 −298%
Far Cry 5	110−120 +293%	30−33 −293%
Forza Horizon 4	240−250 +307%	60−65 −307%
Hitman 3	120−130 +330%	30−33 −330%
Horizon Zero Dawn	350 +289%	90−95 −289%
Shadow of the Tomb Raider	424 +285%	110−120 −285%
The Witcher 3: Wild Hunt	265 +308%	65−70 −308%
Watch Dogs: Legion	150−160 +283%	40−45 −283%

Full HD
Epic Preset

Red Dead Redemption 2

120−130

+310%

30−33
−310%

1440p
High Preset

Battlefield 5	160−170 +315%	40−45 −315%
Far Cry New Dawn	110−120 +315%	27−30 −315%

1440p
Ultra Preset

Assassin's Creed Odyssey	85−90 +324%	21−24 −324%
Assassin's Creed Valhalla	95−100 +304%	24−27 −304%
Call of Duty: Modern Warfare	80−85 +290%	21−24 −290%
Cyberpunk 2077	122 +307%	30−33 −307%
Far Cry 5	80−85 +300%	21−24 −300%
Forza Horizon 4	270−280 +287%	70−75 −287%
Hitman 3	100−110 +304%	27−30 −304%
Horizon Zero Dawn	277 +296%	70−75 −296%
Metro Exodus	141 +303%	35−40 −303%
Shadow of the Tomb Raider	325 +282%	85−90 −282%
The Witcher 3: Wild Hunt	130−140 +294%	35−40 −294%
Watch Dogs: Legion	240−250 +300%	60−65 −300%

1440p
Epic Preset

Red Dead Redemption 2

120−130

+300%

30−33
−300%

4K
High Preset

Battlefield 5	85−90 +319%	21−24 −319%
Far Cry New Dawn	65−70 +283%	18−20 −283%
Hitman 3	65−70 +319%	16−18 −319%
Horizon Zero Dawn	220−230 +311%	55−60 −311%
Metro Exodus	120−130 +307%	30−33 −307%
The Witcher 3: Wild Hunt	159 +298%	40−45 −298%

4K
Ultra Preset

Assassin's Creed Odyssey	60−65 +294%	16−18 −294%
Assassin's Creed Valhalla	60−65 +281%	16−18 −281%
Call of Duty: Modern Warfare	50−55 +333%	12−14 −333%
Cyberpunk 2077	60 +329%	14−16 −329%
Far Cry 5	50−55 +317%	12−14 −317%
Forza Horizon 4	130−140 +289%	35−40 −289%
Shadow of the Tomb Raider	173 +284%	45−50 −284%
Watch Dogs: Legion	50−55 +317%	12−14 −317%

4K
Epic Preset

Red Dead Redemption 2

80−85
+300%

21−24

−300%

This is how RX 7900 XT and RX 6400 compete in popular games:

RX 7900 XT is 314% faster in 1080p
RX 7900 XT is 291% faster in 1440p
RX 7900 XT is 324% faster in 4K

Pros & cons summary

Performance score	74.83	19.71
Recency	3 November 2022	19 January 2022
Maximum RAM amount	20 GB	4 GB
Chip lithography	5 nm	6 nm
Power consumption (TDP)	300 Watt	53 Watt

RX 7900 XT has a 279.7% higher aggregate performance score, an age advantage of 9 months, a 400% higher maximum VRAM amount, and a 20% more advanced lithography process.

RX 6400, on the other hand, has 466% lower power consumption.

The Radeon RX 7900 XT is our recommended choice as it beats the Radeon RX 6400 in performance tests.

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