AMD Radeon HD 7770 GHz Edition vs NVIDIA GeForce GTX 745 OEM

Table of Contents

Graphics Processor

GPU model Cape Verde GM107
GPU variant Cape Verde XT GM107-220-A2
Architecture GCN 1.0 Maxwell
Foundry TSMC TSMC
Manufacturing process 28 nm 28 nm
Number of transistors 1,500 million 1,870 million
Die size 123 mm² 148 mm²

Graphics Card

Release date Feb 15th, 2012 Feb 18th, 2014
Generation Southern Islands GeForce 700
Production End-of-life End-of-life
Launch price 159 USD
Interface PCIe 3.0 x16 PCIe 3.0 x16
Reviews 97 in our database
Predecessor Northern Islands GeForce 600
Successor Sea Islands GeForce 900

Clocks

GPU clock 1000 MHz 1033 MHz
Memory clock 1125 MHz 4.5 Gbps effective 900 MHz 1800 Mbps effective

Memory Configuration

Memory size 1024 MB 4 GB
Memory type GDDR5 DDR3
Memory bus width 128 bit 128 bit
Bandwidth 72.00 GB/s 28.80 GB/s

Render Configuration

Shading units 640 384
TMUs 40 24
ROPs 16 16
Compute units 10
Cache L1 16 KB (per CU) 64 KB (per SMM)
Cache L2 256 KB 2 MB
SMM count 3

Performance

Pixel rate 16.00 GPixel/s 16.53 GPixel/s
Texture rate 40.00 GTexel/s 24.79 GTexel/s
FP32 (float) performance 1,280 GFLOPS 793.3 GFLOPS
FP64 (double) performance 80.00 GFLOPS (1:16) 24.79 GFLOPS (1:32)

Dimensions & Outputs

Slot width Dual-slot Single-slot
Length 210 mm 8.3 inches 145 mm 5.7 inches
TDP 80 W 55 W
Suggested PSU 250 W 250 W
Outputs 1x DVI1x HDMI2x mini-DisplayPort 1x DVI1x HDMI1x VGA
Power connectors 1x 6-pin None
Board number C441, C468 P2012 SKU 50

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 5.0

Other Features

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