AMD Radeon R9 M275X vs NVIDIA GeForce GT 755M Mac Edition

Table of Contents

Graphics Processor

GPU model Venus GK107
GPU variant Venus XTX GT 755M
Architecture GCN 1.0 Kepler
Foundry TSMC TSMC
Manufacturing process 28 nm 28 nm
Number of transistors 1,500 million 1,270 million
Die size 123 mm² 118 mm²

Mobile graphics

Release date Jan 28th, 2014 Nov 8th, 2013
Generation Crystal System (R9 M200) GeForce 700M
Production End-of-life End-of-life
Interface PCIe 3.0 x16 PCIe 3.0 x16
Predecessor Solar System GeForce 600M
Successor Mobility Radeon GeForce 800M

Clocks

Base clock 900 MHz
Boost clock 925 MHz
Memory clock 1125 MHz 4.5 Gbps effective 1250 MHz 5 Gbps effective
GPU clock 1085 MHz

Memory Configuration

Memory size 2 GB 1024 MB
Memory type GDDR5 GDDR5
Memory bus width 128 bit 128 bit
Bandwidth 72.00 GB/s 80.00 GB/s

Render Configuration

Shading units 640 384
TMUs 40 32
ROPs 16 16
Compute units 10
Cache L1 16 KB (per CU) 16 KB (per SMX)
Cache L2 256 KB 256 KB
SMX count 2

Performance

Pixel rate 14.80 GPixel/s 8.680 GPixel/s
Texture rate 37.00 GTexel/s 34.72 GTexel/s
FP32 (float) performance 1,184 GFLOPS 833.3 GFLOPS
FP64 (double) performance 74.00 GFLOPS (1:16) 34.72 GFLOPS (1:24)

Dimensions & Outputs

TDP unknown 50 W
Outputs No outputs No outputs
Slot width MXM Module

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

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