AMD Radeon R7 M370 vs AMD Radeon R9 255 OEM

Table of Contents

Graphics Processor

GPU model Litho Cape Verde
GPU variant Litho XT Cape Verde PRX
Architecture GCN 1.0 GCN 1.0
Foundry TSMC TSMC
Manufacturing process 28 nm 28 nm
Number of transistors 690 million 1,500 million
Die size 56 mm² 123 mm²

Mobile graphics

Release date May 5th, 2015
Generation Crystal System (R7 M300)
Production End-of-life
Interface PCIe 3.0 x8
Predecessor Solar System
Successor Mobility Radeon

Clocks

Base clock 900 MHz 900 MHz
Boost clock 960 MHz 930 MHz
Memory clock 1150 MHz 4.6 Gbps effective 1150 MHz 4.6 Gbps effective

Memory Configuration

Memory size 4 GB 2 GB
Memory type GDDR5 GDDR5
Memory bus width 128 bit 128 bit
Bandwidth 73.60 GB/s 73.60 GB/s

Render Configuration

Shading units 384 512
TMUs 24 32
ROPs 8 16
Compute units 6 8
Cache L1 16 KB (per CU) 16 KB (per CU)
Cache L2 256 KB 256 KB

Performance

Pixel rate 7.680 GPixel/s 14.88 GPixel/s
Texture rate 23.04 GTexel/s 29.76 GTexel/s
FP32 (float) performance 737.3 GFLOPS 952.3 GFLOPS
FP64 (double) performance 46.08 GFLOPS (1:16) 59.52 GFLOPS (1:16)

Dimensions & Outputs

TDP unknown 65 W
Outputs No outputs No outputs
Slot width Dual-slot
Suggested PSU 250 W
Power connectors 1x 6-pin
Board number C750

API Support & Features

DirectX 12 (11_1) 12 (11_1)
OpenGL 4.6 4.6
OpenCL 1.2 1.2
Vulkan 1.2 1.2
Shader model 5.1 5.1

Other Features

Graphics Card

Release date Dec 21st, 2013
Generation Volcanic Islands
Production End-of-life
Interface PCIe 3.0 x16
Predecessor Sea Islands
Successor Pirate Islands

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