PowerColor Radeon RX 6400 ITX 4GB vs SAPPHIRE PULSE Radeon RX 6600 XT

GPU comparison with benchmarks The PowerColor Radeon RX 6400 ITX 4GB has 768 shader units and these clock a maximum of 2.32 GHz which results in an FP32 computing power of 3.57 TFLOPS. The SAPPHIRE PULSE Radeon RX 6600 XT has 2048 shader units and these clock at a maximum of 2.59 GHz and achieve an FP32 computing power of 10.63 TFLOPS.

GPU The PowerColor Radeon RX 6400 ITX 4GB is equipped with a graphics chip of the RDNA 2 architecture, which has 12 streaming multiprocessors. The graphics card SAPPHIRE PULSE Radeon RX 6600 XT is based on the RDNA 2 architecture and is equipped with 32 execution units.
PowerColor Radeon RX 6400 ITX 4GB	GPU	SAPPHIRE PULSE Radeon RX 6600 XT
AMD Radeon RX 6400	Based on	AMD Radeon RX 6600 XT
Navi 24 XL	GPU Chip	Navi 23 XT
RDNA 2	Architecture	RDNA 2
12	Streaming Multiprocessors	32
768	Shader	2048
32	Render Output Units	64
48	Texture Units	128
12	Raytracing Cores	32

Memory The PowerColor Radeon RX 6400 ITX 4GB is equipped with a 4 GB large GDDR6 graphics memory, which is equipped with 2.000 GHz clocks. The SAPPHIRE PULSE Radeon RX 6600 XT has a 8 GB large GDDR6 graphics memory and the memory clock is 2.000GHz.
4 GB	Memory Size	8 GB
GDDR6	Memory Type	GDDR6
2.000 GHz	Memory Clock	2.000 GHz
16.0 Gbps	Memory Speed	16.0 Gbps
128 GB/s	Memory bandwidth	256 GB/s
64 bit	Memory Interface	128 bit

Clock Speeds The PowerColor Radeon RX 6400 ITX 4GB has a turbo clock of 2.321 GHz. The turbo frequency of the SAPPHIRE PULSE Radeon RX 6600 XT is 2.593 GHz.
1.923 GHz	Base Clock	1.968 GHz
2.321 GHz	Boost Clock	2.593 GHz
2.04 GHz	Avg (Game) Clock	2.38 GHz
Yes	Overclocking	Yes

Thermal Design The PowerColor Radeon RX 6400 ITX 4GB has connectors through which it is supplied with power. The manufacturer specifies the maximum operating temperature of the graphics card as 97 °C. The SAPPHIRE PULSE Radeon RX 6600 XT is equipped with a 1 x 8-Pin PCIe power connector that supplies it with power. The maximum operating temperature of the card is 100 °C.
53 W	TDP	160 W
--	TDP (up)	170 W
97 °C	Tjunction max	100 °C
	PCIe-Power	1 x 8-Pin

Cooler & Fans The graphics processor and graphics memory of the PowerColor Radeon RX 6400 ITX 4GB are cooled with a Air cooling. The SAPPHIRE PULSE Radeon RX 6600 XT is cooled by a Air cooling.
Axial	Fan-Type	Axial
1 x 90 mm	Fan 1	2 x 100 mm
--	Fan 2	--
Air cooling	Cooler-Type	Air cooling
0 dB	Noise (Idle)	0 dB
--	Noise (Load)	--

Connectivity The PowerColor Radeon RX 6400 ITX 4GB supports the downward compatible copy protection HDCP in version 2.3. The SAPPHIRE PULSE Radeon RX 6600 XT supports HDCP in version 2.3 and all previous versions.
2	Max. Displays	4
2.3	HDCP-Version	2.3
1x HDMI v2.1	HDMI Ports	1x HDMI v2.1
1x DP v1.4a	DP Ports	3x DP v1.4
--	DVI Ports	--
--	VGA Ports	--
--	USB-C Ports	--

Featureset The PowerColor Radeon RX 6400 ITX 4GB supports the DirectX standard from Microsoft in version 12_2 (Ultimate). The SAPPHIRE PULSE Radeon RX 6600 XT supports Microsoft's DirectX version 12_2 (Ultimate).
7680x4320	Max. resolution	7680x4320
12_2 (Ultimate)	DirectX	12_2 (Ultimate)
Yes	Raytracing	Yes
Yes	DLSS / FSR	Yes
No LED lighting	LED	Addressable LED

Supported Video Codecs This area lists which video codecs can be decoded or encoded by the graphics cards in hardware. As a result, the power consumption can be reduced due to a lower processor load.
Decode / Encode	h264	Decode / Encode
Decode / Encode	h265 / HEVC	Decode / Encode
Decode	AV1	Decode
Decode / Encode	VP8	Decode / Encode
Decode / Encode	VP9	Decode / Encode

Dimensions The PowerColor Radeon RX 6400 ITX 4GB is 40 mm wide and therefore needs the space of 3 PCIe-Slots in the case. The width of the SAPPHIRE PULSE Radeon RX 6600 XT is 40 mm and thus requires the space of 3 PCIe-Slots in the PC case.
168 mm	Length	240 mm
125 mm	Height	120 mm
40 mm	Width	45 mm
2 PCIe-Slots	Width (Slots)	3 PCIe-Slots
--	Weight	--
PCIe 4.0 x 4	GPU Interface	PCIe 4.0 x 8

Additional data Manufactured using the 6 nanometer process, PowerColor Radeon RX 6400 ITX 4GB was released in Q2/2022. The SAPPHIRE PULSE Radeon RX 6600 XT published in Q3/2021 is manufactured with a structure width of 7 nanometers.
AXRX 6400 4GBD6-DH	Part-no	11309-03-20G
Q2/2022	Release date	Q3/2021
159 $ (Reference)	Launch Price	379 $ (Reference)
6 nm	Structure size	7 nm
data sheet	Documents	data sheet

PowerColor Radeon RX 6400 ITX 4GB
1.923 GHz, 4 GB (53 W TDP)

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SAPPHIRE PULSE Radeon RX 6600 XT
1.968 GHz, 8 GB (160 W TDP)

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Benchmark results

3DMark Benchmark (DirectX, Raytracing)

3DMark is a benchmark program that determines the performance of certain components of a computer and then reports the performance as a numerical value.

Time Spy Extreme Graphics score


	PowerColor Radeon RX 6400 ITX 4GB 4 GB GDDR6	1647
	SAPPHIRE PULSE Radeon RX 6600 XT 8 GB GDDR6	4392

Port Royal (Raytracing)


	PowerColor Radeon RX 6400 ITX 4GB 4 GB GDDR6	294
	SAPPHIRE PULSE Radeon RX 6600 XT 8 GB GDDR6	4553

Speed Way Graphics Score (Raytracing)


	PowerColor Radeon RX 6400 ITX 4GB 4 GB GDDR6	80
	SAPPHIRE PULSE Radeon RX 6600 XT 8 GB GDDR6	1584

View all 3DMark Benchmark (DirectX, Raytracing) benchmark results

Cyberpunk 2077

Cyberpunk 2077 was developed by CD Projekt Red and is based on the development studio's own REDengine 4. Ray tracing is switched off in our benchmarks.

3840x2160 (2160p)


	PowerColor Radeon RX 6400 ITX 4GB 4 GB GDDR6	8 fps (avg)
	SAPPHIRE PULSE Radeon RX 6600 XT 8 GB GDDR6	29 fps (avg)

2560x1440 (1440p)


	PowerColor Radeon RX 6400 ITX 4GB 4 GB GDDR6	11 fps (avg)
	SAPPHIRE PULSE Radeon RX 6600 XT 8 GB GDDR6	36 fps (avg)

1920x1080 (1080p)


	PowerColor Radeon RX 6400 ITX 4GB 4 GB GDDR6	21 fps (avg)
	SAPPHIRE PULSE Radeon RX 6600 XT 8 GB GDDR6	58 fps (avg)

View all Cyberpunk 2077 benchmark results

The Last of Us Part 1

The Last of Us Part One is a game released by Sony in June 2013 exclusively for the Playstation and released for the PC in early 2023. The benchmark values here were determined at high details.

2560x1440 (1440p)


	SAPPHIRE PULSE Radeon RX 6600 XT 8 GB GDDR6	30 fps (avg)

1920x1080 (1080p)


	SAPPHIRE PULSE Radeon RX 6600 XT 8 GB GDDR6	70 fps (avg)

View all The Last of Us Part 1 benchmark results

Geekbench 6 (OpenCL, Vulkan, Metal)

Geekbench 6 is a cross-platform benchmark for main processors, which also carries out 3 different graphics benchmarks and outputs them in the form of a numerical value.

Geekbench 6 - OpenCL


	PowerColor Radeon RX 6400 ITX 4GB 4 GB GDDR6	32619
	SAPPHIRE PULSE Radeon RX 6600 XT 8 GB GDDR6	81355

Geekbench 6 - Vulkan


	PowerColor Radeon RX 6400 ITX 4GB 4 GB GDDR6	38397
	SAPPHIRE PULSE Radeon RX 6600 XT 8 GB GDDR6	91419

Geekbench 6 - Metal


	PowerColor Radeon RX 6400 ITX 4GB 4 GB GDDR6	339470
	SAPPHIRE PULSE Radeon RX 6600 XT 8 GB GDDR6	108129

View all Geekbench 6 (OpenCL, Vulkan, Metal) benchmark results

FP32 Performance (Single-precision TFLOPS)

The theoretical computing power of the graphics card with single precision (32 bit) in TFLOPS indicates how many trillion FP32 floating point operations the graphics card (GPU) can perform per second.

FP32 (TFLOPS)


	PowerColor Radeon RX 6400 ITX 4GB 4 GB GDDR6	3.57
	SAPPHIRE PULSE Radeon RX 6600 XT 8 GB GDDR6	10.63

View all FP32 Performance (Single-precision TFLOPS) benchmark results


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PowerColor Radeon RX 6400 ITX 4GB
vs
SAPPHIRE PULSE Radeon RX 6600 XT

GPU comparison with benchmarks

GPU

Memory

Clock Speeds

Thermal Design

Cooler & Fans

Connectivity

Featureset

Supported Video Codecs

Dimensions

Additional data

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