AMD Radeon R9 255 OEM vs NVIDIA GeForce GT 740 OEM

Table of Contents

Graphics Processor

GPU model Cape Verde GK106
GPU variant Cape Verde PRX
Architecture GCN 1.0 Kepler
Foundry TSMC TSMC
Manufacturing process 28 nm 28 nm
Number of transistors 1,500 million 2,540 million
Die size 123 mm² 221 mm²

Graphics Card

Release date Dec 21st, 2013 Apr 14th, 2015
Generation Volcanic Islands GeForce 700
Production End-of-life Active
Interface PCIe 3.0 x16 PCIe 3.0 x16
Predecessor Sea Islands GeForce 600
Successor Pirate Islands GeForce 900

Clocks

Base clock 900 MHz
Boost clock 930 MHz
Memory clock 1150 MHz 4.6 Gbps effective 1253 MHz 5 Gbps effective
GPU clock 1050 MHz

Memory Configuration

Memory size 2 GB 1024 MB
Memory type GDDR5 GDDR5
Memory bus width 128 bit 128 bit
Bandwidth 73.60 GB/s 80.19 GB/s

Render Configuration

Shading units 512 384
TMUs 32 32
ROPs 16 16
Compute units 8
Cache L1 16 KB (per CU) 16 KB (per SMX)
Cache L2 256 KB 256 KB
SMX count 2

Performance

Pixel rate 14.88 GPixel/s 8.400 GPixel/s
Texture rate 29.76 GTexel/s 33.60 GTexel/s
FP32 (float) performance 952.3 GFLOPS 806.4 GFLOPS
FP64 (double) performance 59.52 GFLOPS (1:16) 33.60 GFLOPS (1:24)

Dimensions & Outputs

Slot width Dual-slot Single-slot
TDP 65 W 65 W
Suggested PSU 250 W 250 W
Outputs No outputs No outputs
Power connectors 1x 6-pin None
Board number C750

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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