AMD Radeon R7 340 OEM vs NVIDIA GeForce GT 745A

Table of Contents

Graphics Processor

GPU model Oland GK107
Architecture GCN 1.0 Kepler
Foundry TSMC TSMC
Manufacturing process 28 nm 28 nm
Number of transistors 950 million 1,270 million
Die size 77 mm² 118 mm²
GPU variant N14P-LP

Graphics Card

Release date May 5th, 2015
Generation Pirate Islands
Production End-of-life
Interface PCIe 3.0 x8
Predecessor Volcanic Islands
Successor Arctic Islands

Clocks

Base clock 730 MHz 837 MHz
Boost clock 780 MHz 915 MHz
Memory clock 1000 MHz 4 Gbps effective 900 MHz 1800 Mbps effective

Memory Configuration

Memory size 2 GB 2 GB
Memory type GDDR5 DDR3
Memory bus width 128 bit 128 bit
Bandwidth 64.00 GB/s 28.80 GB/s

Render Configuration

Shading units 384 384
TMUs 24 32
ROPs 8 16
Compute units 6
Cache L1 16 KB (per CU) 16 KB (per SMX)
Cache L2 256 KB 256 KB
SMX count 2

Performance

Pixel rate 6.240 GPixel/s 7.320 GPixel/s
Texture rate 18.72 GTexel/s 29.28 GTexel/s
FP32 (float) performance 599.0 GFLOPS 702.7 GFLOPS
FP64 (double) performance 37.44 GFLOPS (1:16) 29.28 GFLOPS (1:24)

Dimensions & Outputs

Slot width Single-slot MXM Module
TDP 50 W 33 W
Suggested PSU 250 W
Outputs 1x DVI1x HDMI1x VGA No outputs
Power connectors None

API Support & Features

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

Other Features

Mobile graphics

Release date Aug 26th, 2013
Generation GeForce 700A
Production End-of-life
Interface PCIe 3.0 x16
Predecessor GeForce 600A
Successor GeForce 800A

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