Radeon RX 7400 vs R9 Nano

Primary details

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

Place in the ranking	296	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	4.68	no data
Power efficiency	8.82	no data
Architecture	GCN 3.0 (2014−2019)	RDNA 3.0 (2022−2025)
GPU code name	Fiji	Navi 33
Market segment	Desktop	Desktop
Design	reference	no data
Release date	27 August 2015 (9 years ago)	8 August 2025 (recently)
Launch price (MSRP)	$649	no data

Cost-effectiveness evaluation

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

Performance to price scatter graph

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	4096	1792
Compute units	64	no data
Core clock speed	no data	1452 MHz
Boost clock speed	1000 MHz	2300 MHz
Number of transistors	8,900 million	13,300 million
Manufacturing process technology	28 nm	6 nm
Power consumption (TDP)	175 Watt	43 Watt
Texture fill rate	256.0	257.6
Floating-point processing power	8.192 TFLOPS	16.49 TFLOPS
ROPs	64	64
TMUs	256	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).

Bus support	PCIe 3.0	no data
Interface	PCIe 3.0 x16	PCIe 4.0 x8
Length	152 mm	no data
Width	2-slot	2-slot
Supplementary power connectors	1x 8-pin	1x 6-pin
Bridgeless CrossFire	+	-

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	High Bandwidth Memory (HBM)	GDDR6
High bandwidth memory (HBM)	+	no data
Maximum RAM amount	4 GB	8 GB
Memory bus width	4096 Bit	128 Bit
Memory clock speed	500 MHz	2250 MHz
Memory bandwidth	512 GB/s	288.0 GB/s
Shared memory	-	-
Resizable BAR	-	+

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectors	1x HDMI, 3x DisplayPort	1x HDMI 2.1a, 3x DisplayPort 2.1
Eyefinity	+	-
Number of Eyefinity displays	6	no data
HDMI	+	+
DisplayPort support	+	-

Supported technologies

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

AppAcceleration	+	-
CrossFire	+	-
FRTC	+	-
FreeSync	+	-
HD3D	+	-
LiquidVR	+	-
PowerTune	+	-
TressFX	+	-
TrueAudio	+	-
ZeroCore	+	-
VCE	+	-
DDMA audio	+	no data

API and SDK compatibility

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

DirectX	DirectX® 12	12 Ultimate (12_2)
Shader Model	6.3	6.8
OpenGL	4.5	4.6
OpenCL	2.0	2.2
Vulkan	+	1.3
Mantle	+	-

Pros & cons summary

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Recency	27 August 2015	8 August 2025
Maximum RAM amount	4 GB	8 GB
Chip lithography	28 nm	6 nm
Power consumption (TDP)	175 Watt	43 Watt

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