AMD Radeon RX 6800 XT vs NVIDIA GeForce RTX 3080

Graphics Processor

GPU model Navi 21 GA102
GPU variant Navi 21 XT (215-121000177) GA102-200-KD-A1
Architecture RDNA 2.0 Ampere
Foundry TSMC Samsung
Manufacturing process 7 nm 8 nm
Number of transistors 26,800 million 28,300 million
Die size 520 mm² 628 mm²

Graphics Card

Release date Oct 28th, 2020 Sep 1st, 2020
gpu.details.availability Nov 18th, 2020 Sep 17th, 2020
Generation Navi II GeForce 30
Predecessor Navi GeForce 20
Production Active Active
Launch price 649 USD 699 USD
Interface PCIe 4.0 x16 PCIe 4.0 x16
Reviews 57 in our database 99 in our database
Successor Navi III
Current price Amazon / Newegg

Clocks

Base clock 1825 MHz 1440 MHz
Game clock 2015 MHz
Boost clock 2250 MHz 1710 MHz
Memory clock 2000 MHz 16 Gbps effective 1188 MHz 19 Gbps effective

Memory Configuration

Memory size 16 GB 10 GB
Memory type GDDR6 GDDR6X
Memory bus width 256 bit 320 bit
Bandwidth 512.0 GB/s 760.3 GB/s

Render Configuration

Shading units 4608 8704
TMUs 288 272
ROPs 128 96
Compute units 72
RT cores 72 68
gpu.details.l0-cache 32 KB per WGP
Cache L1 128 KB per Array 128 KB (per SM)
Cache L2 4 MB 5 MB
gpu.details.l3-cache 128 MB
SM count 68
Tensor cores 272

Performance

Pixel rate 288.0 GPixel/s 164.2 GPixel/s
Texture rate 648.0 GTexel/s 465.1 GTexel/s
FP16 (half) performance 41.47 TFLOPS (2:1) 29.77 TFLOPS (1:1)
FP32 (float) performance 20.74 TFLOPS 29.77 TFLOPS
FP64 (double) performance 1,296 GFLOPS (1:16) 465.1 GFLOPS (1:64)

Dimensions & Outputs

Slot width Dual-slot Dual-slot
Length 267 mm 10.5 inches 285 mm 11.2 inches
Width 120 mm 4.7 inches 112 mm 4.4 inches
Height 50 mm 2 inches 40 mm 1.6 inches
TDP 300 W 320 W
Suggested PSU 700 W 700 W
Outputs 1x HDMI2x DisplayPort1x USB Type-C 1x HDMI3x DisplayPort
Power connectors 2x 8-pin 1x 12-pin
Part number 102-D41205
Board number 109-D412A7 PG132 SKU 30

API Support & Features

DirectX 12 Ultimate (12_2) 12 Ultimate (12_2)
OpenGL 4.6 4.6
OpenCL 2.1 3.0
Vulkan 1.2 1.2
Shader model 6.5 6.6
CUDA 8.6

Other Features

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