NVIDIA GRID K520Q vs NVIDIA Tesla S870

Table of Contents

Graphics Processor

GPU model GK104 G80
Architecture Kepler Tesla
Foundry TSMC TSMC
Manufacturing process 28 nm 90 nm
Number of transistors 3,540 million 681 million
Die size 294 mm² 484 mm²

Graphics Card

Release date Jul 2nd, 2014 May 2nd, 2007
Generation GRID Tesla
Production End-of-life End-of-life
Launch price 3,599 USD 11,999 USD
Interface PCIe 3.0 x16 PCIe 1.0 x16

Clocks

GPU clock 745 MHz 600 MHz
Memory clock 1250 MHz 5 Gbps effective 800 MHz 1600 Mbps effective
Shader clock 1350 MHz

Memory Configuration

Memory size 4 GB 1536 MB
Memory type GDDR5 GDDR3
Memory bus width 256 bit 384 bit
Bandwidth 160.0 GB/s 76.80 GB/s

Render Configuration

Shading units 1536 128
TMUs 128 32
ROPs 32 24
SMX count 8
Cache L1 16 KB (per SMX)
Cache L2 512 KB 96 KB
SM count 16

Performance

Pixel rate 23.84 GPixel/s 14.40 GPixel/s
Texture rate 95.36 GTexel/s 38.40 GTexel/s
FP32 (float) performance 2.289 TFLOPS 345.6 GFLOPS
FP64 (double) performance 95.36 GFLOPS (1:24)

Dimensions & Outputs

Slot width Dual-slot Dual-slot
Length 267 mm 10.5 inches
TDP 225 W 800 W
Suggested PSU 550 W 1200 W
Outputs No outputs No outputs

API Support & Features

DirectX 12 (11_0) 11.1 (10_0)
OpenGL 4.6 3.3
OpenCL 3.0 1.1 (1.0)
Vulkan 1.1
CUDA 3.0 1.0
Shader model 5.1 4.0

Other Features

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