AMD Radeon R7 240 vs NVIDIA GeForce GT 645M

Table of Contents

Graphics Processor

GPU model Oland GK107
GPU variant Oland LE N13P-GS
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

Graphics Card

Release date Oct 8th, 2013
Generation Volcanic Islands
Production End-of-life
Launch price 69 USD
Interface PCIe 3.0 x8
Reviews 5 in our database
Predecessor Sea Islands
Successor Pirate Islands

Clocks

Base clock 650 MHz
Boost clock 700 MHz
Memory clock 1150 MHz 4.6 Gbps effective 900 MHz 1800 Mbps effective
GPU clock 709 MHz

Memory Configuration

Memory size 2 GB 2 GB
Memory type GDDR5 DDR3
Memory bus width 128 bit 128 bit
Bandwidth 73.60 GB/s 28.80 GB/s

Render Configuration

Shading units 320 384
TMUs 20 32
ROPs 8 16
Compute units 5
Cache L1 16 KB (per CU) 16 KB (per SMX)
Cache L2 256 KB 256 KB
SMX count 2

Performance

Pixel rate 5.600 GPixel/s 5.672 GPixel/s
Texture rate 14.00 GTexel/s 22.69 GTexel/s
FP32 (float) performance 448.0 GFLOPS 544.5 GFLOPS
FP64 (double) performance 28.00 GFLOPS (1:16) 22.69 GFLOPS (1:24)

Dimensions & Outputs

Slot width Single-slot
Length 168 mm 6.6 inches
TDP 30 W 32 W
Suggested PSU 200 W
Outputs 1x DVI1x HDMI1x VGA No outputs
Power connectors None
Board number C552, C577

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 Oct 1st, 2012
Generation GeForce 600M
Production End-of-life
Interface PCIe 3.0 x16
Predecessor GeForce 500M
Successor GeForce 700M

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