Qualcomm Adreno 642 vs XFX Radeon RX 6600 XT Speedster MERC 308 Full Specs

Summary

768 Shaders 550MHz	2,048 Shaders 2.61GHz
Shared Memory25.6GB/s LPDDR5·LPDDR4X	8GB GDDR6256GB/s placeholder
Peak·FP32·FP16 844.8 GFLOPS	Peak·FP32·FP16 10.68 TFLOPS
Form Factor iGPU	Form Factor PCIe Card
TDP 5W	TDP 160W
Power Connectors -	Power Connectors 1x 8-Pin

Highlights

Peak OPS

Peak OPS FP32 FP16 FP64 Memory Bandwidth TDP

Adreno 6421.69 TFLOPSFP16

x1

Radeon RX 6600 XT Speedster MERC 30821.36 TFLOPSFP16

x12.64

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Theoretical Performance

Clock Speed550MHz UC·Base·Boost·OC	Clock Speed2607MHz UC·Base·Boost·OC
Peak OPS 1.69 TFLOPSFP16	Peak OPS 21.36 TFLOPSFP16
FP32 844.8 GFLOPS	FP32 10.68 TFLOPS
FP64 211.2 GFLOPS	FP64 667.4 GFLOPS
Pixel Rate 13.2 GPixel/s	Pixel Rate 166.9 GPixel/s
Texture Rate 26.4 GTexel/s	Texture Rate 333.7 GTexel/s

Core Config

Shaders 768 Shaders	Shaders 2,048 Shaders
TMUs 48 TMUs	TMUs 128 TMUs
ROPs 24 ROPs	ROPs 64 ROPs
RT Cores -	RT Cores 32 RT-Cores
EUs 6 EUs	CUs 32 CUs

Clocks

Base Clock 490MHz	Base Clock 2.19GHz
Boost Clock 550MHz	Boost Clock 2.61GHz

Cache

L0 Cache -	L0 Cache 32KB/WGP
L1 8KB/CU	L1 128KB/Array
L2 Cache 128KB shared	L2 Cache 2MB shared
L3 Cache 2MB shared	L3 Cache 32MB shared
L3 Bandwidth -	L3 Bandwidth 832GB/s

Memory

Shared Memory LPDDR5·LPDDR4X	8GB GDDR6 placeholder
Memory Bus 32-bit	Memory Bus 128-bit
Memory Speed 6.4GT/s	Memory Speed 16GT/s
Memory Bandwidth 25.6GB/s	Memory Bandwidth 256GB/s
ECC No	ECC No

Power & Thermals

TDP 5W	TDP 160W
Max Temp -	Max Temp 110°C Max

Video Output

Max Resolution 2520x1080	Max Resolution 7680x4320
Refresh Rate Calculator 1920x1080 Resolution1080p FHD Refresh Rate 78Hz	Refresh Rate Calculator 7680x4320 Resolution8K UHD Refresh Rate 120Hz
Multi-Monitor 1	Multi-Monitor 4
Adaptive Sync -	Adaptive Sync FreeSync
DSC Not Supported	DSC Supported
HDCP -	HDCP HDCP 2.3

Ports

-	3x DisplayPort 1.4 1x HDMI 2.1

API Support

Shader Model -	Shader Model 6.5
DirectX DirectX 12 Direct3D 12_1	DirectX DirectX 12 Direct3D 12_2
OpenGL 3.2 OpenCL 2 Vulkan 1.1	OpenGL 4.6 OpenCL 2.1 Vulkan 1.2
-	GFX 10.3

Encoder

Encoder Hexagon 770	Encoder VCN 3.0
Codec H.263 MPEG-4 VC-1 VP8 VP9 AVC (H.264) HEVC (H.265)	Codec - - - - - AVC (H.264) HEVC (H.265)

Decoder

Decoder Hexagon 770	Decoder VCN 3.0
Codec MPEG-1 MPEG-2 MPEG-4 - VC-1 VP8 VP9 AVC (H.264) HEVC (H.265) -	Codec MPEG-1 MPEG-2 MPEG-4 JPEG VC-1 - VP9 AVC (H.264) HEVC (H.265) AV1

Card

Form Factor iGPU	Form Factor PCIe Card
PCIe -	PCIe PCIe 4.0 x8 2.5-Slots
-	Height 114mm (4.49") Width 274mm (10.79") Depth 50mm (1.97")
Cooling Open-Air -	Cooling Open-Air 3x Fans
Power Connectors -	Power Connectors 1x 8-Pin
Multi-GPU -	Multi-GPU Multi-GPU Support Supported Multi-GPU Type Bridgeless

Chip

Manufacturer Qualcomm	Manufacturer XFX
Chip Designer Qualcomm	Chip Designer AMD
Architecture Adreno 600	Architecture RDNA 2
Family Adreno 600	Family Radeon RX 6000
Branding	Branding
Codename -	Codename Dimgrey Cavefish
Chip Variant -	Chip Variant Navi 23 XL
Market Segment Smartphone	Market Segment Desktop
Release Date May 20, 2022	Release Date Aug 11, 2021

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node N6	Fabrication Node N7
Die Size -	Die Size 237mm²
Transistor Count -	Transistor Count 11.1B
Transistor Density -	Transistor Density 46.67 MTr/mm²

Images