AMD Radeon 840M 2800MHz vs AMD Radeon RX 7400 Full Specs

Summary

256 Shaders 2.8GHz	1,792 Shaders 1.1GHz
Shared Memory128GB/s LPDDR5X·DDR5	8GB GDDR6172.8GB/s placeholder
Peak·FP32·FP16 1.43 TFLOPS	Peak·FP32·FP16 7.88 TFLOPS
Form Factor iGPU	Form Factor PCIe Card
TDP Shared	TDP 55W
Power Connectors -	Power Connectors 1x 8-Pin

Highlights

Peak OPS

Peak OPS FP32 FP16 Tensor FP16-16 Tensor FP16-32 FP64 BF16 Tensor BF16 Tensor INT8 Tensor INT4 Memory Bandwidth TDP

Radeon 840M 2800MHz2.87 TFLOPSFP16

x1

Radeon RX 740031.54 TOPSINT4 Tensor

x11.00

Show Top Score

Theoretical Performance

Clock Speed2800MHz UC·Base·Boost·OC	Clock Speed1100MHz UC·Base·Boost·OC
Peak OPS 2.87 TFLOPSFP16	Peak OPS 31.54 TOPSINT4 Tensor
-	Tensor FP16-16 7.88 TFLOPS Tensor FP16-32 7.88 TFLOPS
BF16 2.87 TFLOPS Tensor BF16 -	BF16 15.77 TFLOPS Tensor BF16 7.88 TFLOPS
FP32 1.43 TFLOPS	FP32 7.88 TFLOPS
FP64 89.6 GFLOPS	FP64 246.4 GFLOPS
Tensor INT4 -	Tensor INT4 31.54 TOPS
-	Tensor INT8 7.88 TOPS
Pixel Rate 89.6 GPixel/s	Pixel Rate 70.4 GPixel/s
Texture Rate 44.8 GTexel/s	Texture Rate 123.2 GTexel/s

Core Config

Shaders 256 Shaders	Shaders 1,792 Shaders
TMUs 16 TMUs	TMUs 112 TMUs
ROPs 32 ROPs	ROPs 64 ROPs
Tensor Cores -	Tensor Cores 56 T-Cores
RT Cores 4 RT-Cores	RT Cores 28 RT-Cores
CUs 4 CUs	CUs 28 CUs

Clocks

Base Clock 1.5GHz	Base Clock 1GHz
Boost Clock 2.8GHz	Boost Clock 1.1GHz

Cache

L0 Cache 32KB/WGP	L0 Cache 64KB/WGP
L1 256KB/Array	L1 256KB/Array
L2 Cache -	L2 Cache 2MB shared
L3 Cache -	L3 Cache 32MB shared
L3 Bandwidth -	L3 Bandwidth 1.16TB/s

Memory

Shared Memory LPDDR5X·DDR5	8GB GDDR6 placeholder
Memory Bus 128-bit	Memory Bus 128-bit
Memory Speed 8GT/s	Memory Speed 10.8GT/s
Memory Bandwidth 128GB/s	Memory Bandwidth 172.8GB/s
ECC -	ECC No

Power & Thermals

TDP Shared

TDP 55W

Video Output

Max Resolution 4096x2160	Max Resolution 7680x4320
Refresh Rate Calculator 3840x2160 Resolution4K UHD Refresh Rate 64Hz	Refresh Rate Calculator 7680x4320 Resolution8K UHD Refresh Rate 165Hz
Multi-Monitor 4	Multi-Monitor 3
Adaptive Sync FreeSync	Adaptive Sync FreeSync
DSC Not Supported	DSC Supported
HDCP HDCP 2.3	HDCP HDCP 2.3

Ports

-	3x DisplayPort 2.1 1x HDMI 2.1

API Support

Shader Model 6.7	Shader Model 6.7
DirectX DirectX 12 Direct3D 12_2	DirectX DirectX 12 Direct3D 12_2
OpenGL 4.6 OpenCL 2.1 Vulkan 1.3	OpenGL 4.6 OpenCL 2.2 Vulkan 1.3
GFX 11.5	GFX 11

Encoder

Encoder VCN 4.0	Encoder VCN 4.0
Codec VP9 AVC (H.264) HEVC (H.265) AV1	Codec VP9 AVC (H.264) HEVC (H.265) AV1

Decoder

Decoder VCN 4.0	Decoder VCN 4.0
Codec MPEG-1 MPEG-2 MPEG-4 JPEG VC-1 VP9 AVC (H.264) HEVC (H.265) AV1	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-Slots
-	Height 115mm (4.53") Width 204mm (8.03") Depth 40mm (1.57")
Cooling Open-Air -	Cooling Open-Air 2x Fans
Power Connectors -	Power Connectors 1x 8-Pin
Multi-GPU -	Multi-GPU Multi-GPU Support Supported Multi-GPU Type CrossFire XDMA

Chip

Manufacturer AMD	Manufacturer AMD
Chip Designer AMD	Chip Designer AMD
Architecture RDNA 3.5	Architecture RDNA 3
Family 800	Family Radeon RX 7000
Branding	Branding
Codename Gorgon Point	Codename Hotpink Bonefish
Chip Variant -	Chip Variant Navi 33 XL
Market Segment Laptop	Market Segment Desktop
Release Date Mar 2, 2026	Release Date Aug 8, 2025

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node N4P	Fabrication Node N6
Die Size 233mm²	Die Size 204mm²
Transistor Count 28B	Transistor Count 13.3B
Transistor Density 120 MTr/mm²	Transistor Density 65.2 MTr/mm²

Images