NVIDIA GeForce RTX 4080 vs NVIDIA GeForce RTX 4090

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GeForce RTX 4080 compared with GeForce RTX 4090

	NVIDIAGeForce RTX 4080	NVIDIAGeForce RTX 4090
Overview
Released
Released	November 2022	October 2022
Performance
Chip maker
Chip maker	NVIDIA	NVIDIA
Architecture
Architecture	Ada Lovelace	Ada Lovelace
Shader cores
Shader cores	9,728	16,384
Boost clock
Boost clock	2,510 MHz	2,520 MHz (better)
Architecture
Architecture	AD103; 76 Streaming Multiprocessors. Specifications describe NVIDIA's reference card; the photo shows PNY's original RTX 4080 VERTO Triple Fan, whose cooler and dimensions differ.	AD102 GPU; 128 SMs, 512 texture units, 176 ROPs
Manufacturing process
Manufacturing process	TSMC 4N; 45.9 billion transistors; 378.6 mm² die	TSMC 4N NVIDIA custom process; 76.3 billion transistors; 608.5 mm² die
Ray tracing
Ray tracing	76 third-generation RT Cores; 113 RT TFLOPS	128 third-generation RT Cores; 191 RT TFLOPS
AI cores
AI cores	304 fourth-generation Tensor Cores; 780 AI TOPS	512 fourth-generation Tensor Cores; 1321 AI TOPS
Upscaling and frame generation
Upscaling and frame generation	DLSS 3.5 with Super Resolution, DLAA, Ray Reconstruction and Frame Generation	DLSS 3.5 with Super Resolution, DLAA, Ray Reconstruction and Frame Generation
Base clock
Base clock	2.21 GHz on the current NVIDIA specification page; PNY's stock-clock VERTO lists 2,205 MHz base, while NVIDIA's Ada architecture whitepaper gives 2,505 MHz boost (current page rounds boost to 2.51 GHz)	2.23 GHz
Cache
Cache	65,536 KB L2	72 MB L2
Memory
Video memory
Video memory	16 GB GDDR6X	24 GB GDDR6X (better)
Memory bus
Memory bus	256-bit	384-bit (better)
Memory bandwidth
Memory bandwidth	716.8 GB/s	1,008 GB/s (better)
Memory detail
Memory detail	22.4 Gbps GDDR6X	GDDR6X at 21 Gbps
Connections and power
Board power
Board power	320 W (better)	450 W
Interface
Interface	PCIe 4.0	PCIe 4.0
Display outputs
Display outputs	3 × DisplayPort 1.4a, 1 × HDMI 2.1a; up to 4 displays; HDCP 2.3	3 × DisplayPort 1.4a, 1 × HDMI 2.1a; up to 4 displays; HDCP 2.3
Maximum resolution
Maximum resolution	4K at 240 Hz or 8K at 60 Hz with DSC and HDR	4K at 240 Hz or 8K at 60 Hz with DSC, HDR
Power connector
Power connector	3 × PCIe 8-pin cables through the included adapter, or 1 × 450 W or greater PCIe Gen 5 cable (Founders Edition)	1 × 450 W or greater PCIe Gen 5 cable, or 3 × PCIe 8-pin cables with the adapter in the box
Recommended power supply
Recommended power supply	750 W; NVIDIA recommends another 36 mm of clearance for the power cable	850 W
Slot width
Slot width	3-slot (Founders Edition)	3-slot, 61 mm (Founders Edition)
Size (reference card)
Size (reference card)	304 × 137 mm, 3-slot; NVIDIA's system-clearance guide specifies 61 mm thickness (Founders Edition)	304 × 137 mm, 3-slot (Founders Edition)
Video encode and decode
Video encode and decode	2 × eighth-generation NVENC, fifth-generation NVDEC; AV1 encode and decode	2 × eighth-generation NVENC, 1 × fifth-generation NVDEC; AV1 encode and decode