AMD Radeon R5 M255 vs NVIDIA GeForce GT 630M

Table of Contents

Graphics Processor

GPU model Topaz GF108
GPU variant Topaz PRO (216-0864032) N12P-GS-A1
Architecture GCN 3.0 Fermi
Foundry TSMC TSMC
Manufacturing process 28 nm 40 nm
Number of transistors 1,550 million 585 million
Die size 125 mm² 116 mm²

Mobile graphics

Release date Oct 12th, 2014 Mar 22nd, 2012
Generation Crystal System (R5 M200) GeForce 600M
Production End-of-life End-of-life
Interface PCIe 3.0 x8 MXM-A (3.0)
Predecessor Solar System GeForce 500M
Successor Mobility Radeon GeForce 700M

Clocks

Base clock 925 MHz
Boost clock 940 MHz
Memory clock 1000 MHz 4 Gbps effective 900 MHz 1800 Mbps effective
GPU clock 660 MHz
Shader clock 1320 MHz

Memory Configuration

Memory size 1024 MB 1024 MB
Memory type GDDR5 DDR3
Memory bus width 128 bit 64 bit
Bandwidth 64.00 GB/s 14.40 GB/s

Render Configuration

Shading units 384 96
TMUs 24 16
ROPs 8 4
Compute units 6
Cache L1 16 KB (per CU) 64 KB (per SM)
Cache L2 256 KB 128 KB
SM count 2

Performance

Pixel rate 7.520 GPixel/s 2.640 GPixel/s
Texture rate 22.56 GTexel/s 10.56 GTexel/s
FP16 (half) performance 721.9 GFLOPS (1:1)
FP32 (float) performance 721.9 GFLOPS 253.4 GFLOPS
FP64 (double) performance 45.12 GFLOPS (1:16) 21.12 GFLOPS (1:12)

Dimensions & Outputs

TDP unknown 33 W
Outputs No outputs No outputs
Slot width MXM Module

API Support & Features

DirectX 12 (12_0) 12 (11_0)
OpenGL 4.6 4.6
OpenCL 2.0 1.1
Vulkan 1.2
Shader model 6.3 5.1
CUDA 2.1

Other Features

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