AMD Radeon R9 390X vs NVIDIA GeForce GTX 780 Ti

Graphics Processor

GPU model Grenada GK110B
GPU variant Grenada XT (215-0880004) GK110-425-B1
Architecture GCN 2.0 Kepler
Foundry TSMC TSMC
Manufacturing process 28 nm 28 nm
Number of transistors 6,200 million 7,080 million
Die size 438 mm² 561 mm²

Graphics Card

Release date Jun 18th, 2015 Nov 7th, 2013
Generation Pirate Islands GeForce 700
Production End-of-life End-of-life
Launch price 429 USD 699 USD
Interface PCIe 3.0 x16 PCIe 3.0 x16
Reviews 60 in our database 94 in our database
Predecessor Volcanic Islands GeForce 600
Successor Arctic Islands GeForce 900

Clocks

GPU clock 1050 MHz
Memory clock 1500 MHz 6 Gbps effective 1753 MHz 7 Gbps effective
Base clock 875 MHz
Boost clock 928 MHz

Memory Configuration

Memory size 8 GB 3 GB
Memory type GDDR5 GDDR5
Memory bus width 512 bit 384 bit
Bandwidth 384.0 GB/s 336.6 GB/s

Render Configuration

Shading units 2816 2880
TMUs 176 240
ROPs 64 48
Compute units 44
Cache L1 16 KB (per CU) 16 KB (per SMX)
Cache L2 1024 KB 1536 KB
SMX count 15

Performance

Pixel rate 67.20 GPixel/s 55.68 GPixel/s
Texture rate 184.8 GTexel/s 222.7 GTexel/s
FP32 (float) performance 5.914 TFLOPS 5.345 TFLOPS
FP64 (double) performance 739.2 GFLOPS (1:8) 222.7 GFLOPS (1:24)

Dimensions & Outputs

Slot width Dual-slot Dual-slot
Length 275 mm 10.8 inches 267 mm 10.5 inches
Width 109 mm 4.3 inches 111 mm 4.4 inches
Height 36 mm 1.4 inches 38 mm 1.5 inches
TDP 275 W 250 W
Suggested PSU 600 W 600 W
Outputs 2x DVI1x HDMI1x DisplayPort 2x DVI1x HDMI1x DisplayPort
Power connectors 1x 6-pin + 1x 8-pin 1x 6-pin + 1x 8-pin
Board number C671, C679-37 P2083 SKU 30

API Support & Features

DirectX 12 (12_0) 12 (11_1)
OpenGL 4.6 4.6
OpenCL 2.0 3.0
Vulkan 1.2 1.1
Shader model 6.3 5.1
CUDA 3.5

Other Features

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