AMD Radeon HD 8870M vs NVIDIA GeForce GT 755M

Table of Contents

Graphics Processor

GPU model Venus GK107
GPU variant Venus XT 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 Apr 1st, 2013 Jun 25th, 2013
Generation Solar System (HD 8800M) GeForce 700M
Production End-of-life End-of-life
Interface PCIe 3.0 x16 PCIe 3.0 x16
Predecessor London GeForce 600M
Successor Crystal System GeForce 800M

Clocks

Base clock 725 MHz
Boost clock 775 MHz
Memory clock 1125 MHz 4.5 Gbps effective 1350 MHz 5.4 Gbps effective
GPU clock 980 MHz

Memory Configuration

Memory size 2 GB 2 GB
Memory type GDDR5 GDDR5
Memory bus width 128 bit 128 bit
Bandwidth 72.00 GB/s 86.40 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 12.40 GPixel/s 7.840 GPixel/s
Texture rate 31.00 GTexel/s 31.36 GTexel/s
FP32 (float) performance 992.0 GFLOPS 752.6 GFLOPS
FP64 (double) performance 62.00 GFLOPS (1:16) 31.36 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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