AMD Radeon R9 M370X Mac Edition vs NVIDIA GeForce 845M

Table of Contents

Graphics Processor

GPU model Tropo GM107
GPU variant Tropo XT N15S-GT1R
Architecture GCN 1.0 Maxwell
Foundry TSMC TSMC
Manufacturing process 28 nm 28 nm
Number of transistors 1,500 million 1,870 million
Die size 123 mm² 148 mm²

Mobile graphics

Release date May 5th, 2015 Feb 7th, 2015
Generation Crystal System (R9 M300) GeForce 800M
Production End-of-life End-of-life
Interface PCIe 3.0 x16 PCIe 3.0 x16
Predecessor Solar System GeForce 700M
Successor Mobility Radeon GeForce 900M

Clocks

Base clock 775 MHz
Boost clock 800 MHz
Memory clock 1125 MHz 4.5 Gbps effective 1001 MHz 2 Gbps effective
GPU clock 863 MHz

Memory Configuration

Memory size 2 GB 2 GB
Memory type GDDR5 DDR3
Memory bus width 128 bit 64 bit
Bandwidth 72.00 GB/s 16.02 GB/s

Render Configuration

Shading units 640 512
TMUs 40 32
ROPs 16 16
Compute units 10
Cache L1 16 KB (per CU) 64 KB (per SMM)
Cache L2 256 KB 1024 KB
SMM count 4

Performance

Pixel rate 12.80 GPixel/s 13.81 GPixel/s
Texture rate 32.00 GTexel/s 27.62 GTexel/s
FP32 (float) performance 1,024 GFLOPS 883.7 GFLOPS
FP64 (double) performance 64.00 GFLOPS (1:16) 27.62 GFLOPS (1:32)

Dimensions & Outputs

TDP unknown 45 W
Outputs No outputs No outputs
Slot width IGP

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 5.0

Other Features

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