AMD Radeon HD 7770 GHz Edition Vs NVIDIA GeForce GTX 660

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AMD Radeon HD 7770 GHz Edition vs NVIDIA GeForce GTX 660
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  • Radeon HD 7770 GHz Edition vs GeForce GTX 660
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Table of Contents

  • Graphics Processor
  • Graphics Card
  • Clocks
  • Memory Configuration
  • Render Configuration
  • Performance
  • Dimensions & Outputs
  • API Support & Features
  • Other Features

Graphics Processor

GPU model Cape Verde GK106
GPU variant Cape Verde XT GK106-400-A1
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 Feb 15th, 2012 Sep 6th, 2012
Generation Southern Islands GeForce 600
Production End-of-life End-of-life
Launch price 159 USD 229 USD
Interface PCIe 3.0 x16 PCIe 3.0 x16
Reviews 97 in our database 77 in our database
Predecessor Northern Islands GeForce 500
Successor Sea Islands GeForce 700

Clocks

GPU clock 1000 MHz —
Memory clock 1125 MHz 4.5 Gbps effective 1502 MHz 6 Gbps effective
Base clock — 980 MHz
Boost clock — 1032 MHz

Memory Configuration

Memory size 1024 MB 2 GB
Memory type GDDR5 GDDR5
Memory bus width 128 bit 192 bit
Bandwidth 72.00 GB/s 144.2 GB/s

Render Configuration

Shading units 640 960
TMUs 40 80
ROPs 16 24
Compute units 10 —
Cache L1 16 KB (per CU) 16 KB (per SMX)
Cache L2 256 KB 384 KB
SMX count — 5

Performance

Pixel rate 16.00 GPixel/s 20.64 GPixel/s
Texture rate 40.00 GTexel/s 82.56 GTexel/s
FP32 (float) performance 1,280 GFLOPS 1.981 TFLOPS
FP64 (double) performance 80.00 GFLOPS (1:16) 82.56 GFLOPS (1:24)

Dimensions & Outputs

Slot width Dual-slot Dual-slot
Length 210 mm 8.3 inches 241 mm 9.5 inches
TDP 80 W 140 W
Suggested PSU 250 W 300 W
Outputs 1x DVI1x HDMI2x mini-DisplayPort 2x DVI1x HDMI1x DisplayPort
Power connectors 1x 6-pin 1x 6-pin
Board number C441, C468 P2030

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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