AMD Radeon RX 6600 XT vs AMD Radeon RX 580X

Comparative analysis of AMD Radeon RX 6600 XT and AMD Radeon RX 580X videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies. Benchmark videocards performance analysis: PassMark - G3D Mark, PassMark - G2D Mark, Geekbench - OpenCL, CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps), 3DMark Fire Strike - Graphics Score.

AMD Radeon RX 6600 XT

AMD Radeon RX 580X

Differences

Reasons to consider the AMD Radeon RX 6600 XT

Videocard is newer: launch date 3 year(s) 3 month(s) later
Around 57% higher core clock speed: 1968 MHz vs 1257 MHz
Around 93% higher boost clock speed: 2589 MHz vs 1340 MHz
Around 72% higher texture fill rate: 331.4 GTexel/s vs 192.96 GTexel/s
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 7 nm vs 14 nm
Around 16% lower typical power consumption: 160 Watt vs 185 Watt
2.2x better performance in PassMark - G3D Mark: 16468 vs 7514
Around 40% better performance in PassMark - G2D Mark: 911 vs 652
Around 98% better performance in Geekbench - OpenCL: 82690 vs 41822
Around 33% better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 15486 vs 11616
Around 33% better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 15486 vs 11616

Specifications (specs)
Launch date	30 Jul 2021 vs 3 April 2018
Core clock speed	1968 MHz vs 1257 MHz
Boost clock speed	2589 MHz vs 1340 MHz
Texture fill rate	331.4 GTexel/s vs 192.96 GTexel/s
Manufacturing process technology	7 nm vs 14 nm
Thermal Design Power (TDP)	160 Watt vs 185 Watt
Benchmarks
PassMark - G3D Mark	16468 vs 7514
PassMark - G2D Mark	911 vs 652
Geekbench - OpenCL	82690 vs 41822
GFXBench 4.0 - Car Chase Offscreen (Frames)	15486 vs 11616
GFXBench 4.0 - Car Chase Offscreen (Fps)	15486 vs 11616

Reasons to consider the AMD Radeon RX 580X

Around 13% higher pipelines: 2304 vs 2048
4x more memory clock speed: 8000 MHz vs 2000 MHz (16 Gbps effective)
Around 32% better performance in GFXBench 4.0 - Manhattan (Frames): 4909 vs 3728
5.4x better performance in GFXBench 4.0 - T-Rex (Frames): 18294 vs 3367
Around 32% better performance in GFXBench 4.0 - Manhattan (Fps): 4909 vs 3728
5.4x better performance in GFXBench 4.0 - T-Rex (Fps): 18294 vs 3367

Specifications (specs)
Pipelines	2304 vs 2048
Memory clock speed	8000 MHz vs 2000 MHz (16 Gbps effective)
Benchmarks
GFXBench 4.0 - Manhattan (Frames)	4909 vs 3728
GFXBench 4.0 - T-Rex (Frames)	18294 vs 3367
GFXBench 4.0 - Manhattan (Fps)	4909 vs 3728
GFXBench 4.0 - T-Rex (Fps)	18294 vs 3367

Compare benchmarks

GPU 1: AMD Radeon RX 6600 XT
GPU 2: AMD Radeon RX 580X

PassMark - G3D Mark

GPU 1

GPU 2

16468

7514

PassMark - G2D Mark

GPU 1

GPU 2

911

652

Geekbench - OpenCL

GPU 1

GPU 2

82690

41822

GFXBench 4.0 - Car Chase Offscreen (Frames)

GPU 1

GPU 2

15486

11616

GFXBench 4.0 - Manhattan (Frames)

GPU 1

GPU 2

3728

4909

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

3367

18294

GFXBench 4.0 - Car Chase Offscreen (Fps)

GPU 1

GPU 2

15486

11616

GFXBench 4.0 - Manhattan (Fps)

GPU 1

GPU 2

3728

4909

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

3367

18294

Name	AMD Radeon RX 6600 XT	AMD Radeon RX 580X
PassMark - G3D Mark	16468	7514
PassMark - G2D Mark	911	652
Geekbench - OpenCL	82690	41822
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	706.665
GFXBench 4.0 - Car Chase Offscreen (Frames)	15486	11616
GFXBench 4.0 - Manhattan (Frames)	3728	4909
GFXBench 4.0 - T-Rex (Frames)	3367	18294
GFXBench 4.0 - Car Chase Offscreen (Fps)	15486	11616
GFXBench 4.0 - Manhattan (Fps)	3728	4909
GFXBench 4.0 - T-Rex (Fps)	3367	18294
3DMark Fire Strike - Graphics Score	1805

Compare specifications (specs)

	AMD Radeon RX 6600 XT	AMD Radeon RX 580X
Essentials
Architecture	RDNA 2.0	GCN 4.0
Code name	Navi 23 XT	Polaris 20
Launch date	30 Jul 2021	3 April 2018
Launch price (MSRP)	$379
Place in performance rating	188	191
Type	Desktop	Desktop, Laptop
Design		Radeon RX 500X Series
GCN generation		4th Gen
Technical info
Boost clock speed	2589 MHz	1340 MHz
Compute units	32	36
Core clock speed	1968 MHz	1257 MHz
Manufacturing process technology	7 nm	14 nm
Peak Double Precision (FP64) Performance	662.8 GFLOPS (1:16)
Peak Half Precision (FP16) Performance	21.21 TFLOPS (2:1)
Peak Single Precision (FP32) Performance	10.60 TFLOPS
Pipelines	2048	2304
Pixel fill rate	165.7 GPixel/s	42.88 GP/s
Texture fill rate	331.4 GTexel/s	192.96 GTexel/s
Thermal Design Power (TDP)	160 Watt	185 Watt
Transistor count	11060 million	5,700 million
Floating-point performance		6.2 TFLOPs
Render output units		32
Stream Processors		2304
Texture Units		144
Video outputs and ports
Display Connectors	1x HDMI, 2x DisplayPort	1x HDMI, 3x DisplayPort
DisplayPort count	3
DisplayPort support
HDMI
Dual-link DVI support
VGA
Compatibility, dimensions and requirements
Form factor	Dual-slot
Height	40 mm (1.6 inches)
Interface	PCIe 4.0 x8	PCIe 3.0 x16
Length	190 mm (7.5 inches)	241 mm
Recommended system power (PSU)	450 Watt
Supplementary power connectors	1x 8-pin	1x 8-pin
Width	110 mm (4.3 inches)
API support
DirectX	12.2	12
OpenCL	2.1
OpenGL	4.6	4.5
Shader Model	6.5
Vulkan
Memory
Maximum RAM amount	8 GB	8 GB
Memory bandwidth	256 GB/s	256 GB/s
Memory bus width	128 bit	256 bit
Memory clock speed	2000 MHz (16 Gbps effective)	8000 MHz
Memory type	GDDR6	GDDR5
Technologies
4K H264 Decode
4K H264 Encode
AMD Radeon™ Chill
AMD Radeon™ ReLive
AppAcceleration
FreeSync
H265/HEVC Decode
H265/HEVC Encode
HDMI 4K Support
TrueAudio
VR Ready