NVIDIA GeForce 7800 GTX 512 vs NVIDIA GeForce GT 820M

Table of Contents

Graphics Processor

GPU model G70 GF117
GPU variant GF-7800-U-A2 N15V-GM
Architecture Curie Fermi 2.0
Foundry TSMC TSMC
Manufacturing process 110 nm 28 nm
Number of transistors 302 million 585 million
Die size 333 mm² 116 mm²

Graphics Card

Release date Nov 14th, 2005
Generation GeForce 7 PCIe
Production End-of-life
Launch price 649 USD
Interface PCIe 1.0 x16
Reviews 206 in our database
Predecessor GeForce 6 PCIe
Successor GeForce 8

Clocks

GPU clock 500 MHz 775 MHz
Memory clock 800 MHz 1600 Mbps effective 900 MHz 1800 Mbps effective
Shader clock 1550 MHz

Memory Configuration

Memory size 512 MB 1024 MB
Memory type GDDR3 DDR3
Memory bus width 256 bit 64 bit
Bandwidth 51.20 GB/s 14.40 GB/s

Render Configuration

Pixel shaders 24
Vertex shaders 8
TMUs 24 16
ROPs 16 8
Shading units 96
SM count 2
Cache L1 64 KB (per SM)
Cache L2 128 KB

Performance

Pixel rate 8.000 GPixel/s 3.100 GPixel/s
Vertex rate 1.000 GVertices/s
Texture rate 12.00 GTexel/s 12.40 GTexel/s
FP32 (float) performance 297.6 GFLOPS
FP64 (double) performance 24.80 GFLOPS (1:12)

Dimensions & Outputs

Slot width Dual-slot
Length 228 mm 9 inches
TDP 108 W 15 W
Suggested PSU 300 W
Outputs 2x DVI1x S-Video No outputs
Board number P348
Width 111 mm 4.4 inches
Height 38 mm 1.5 inches

API Support & Features

DirectX 9.0c (9_3) 12 (11_0)
OpenGL 2.1 4.6
OpenCL 1.1
Vulkan
Shader model 3.0 5.1
CUDA 2.1

Other Features

Mobile graphics

Release date Nov 27th, 2013
Generation GeForce 800M
Production End-of-life
Interface PCIe 2.0 x16
Predecessor GeForce 700M
Successor GeForce 900M

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