ATI RV670 Graphics Processing Unit (GPU)

Specs based on ATI Radeon HD 3870
Overview
Manufacturer
AMD
Release Date
November 19th, 2007
Graphics Processing Unit
Architecture
ATI VLIW5 TeraScale
Fabrication Process
55 nm
Die Size
192 mm2
Transistors Count
666M
Transistors Density
3.5M TRAN/mm2
Stream Cores
320
Thread Processors
16
SIMD Engines
4
TMUs
16
ROPs
16
Clocks
Base Clock
777 MHz
Memory Configuration
Memory Size
512 MB
Memory Type
GDDR4
Memory Bus Width
256-bit
Memory Bandwidth
72.1 GB/s
Performance
Pixel Fillrate
12.4 GPixels/s
Texture Fillrate
12.4 GTexel/s
SPFP Performance
497.3 GFLOPS
Performance per W
4.7 GFLOPS/W
Performance per mm2
2.6 GFLOPS/mm2
Physical
Interface
PCI-Express 2.0 x16
Typical Thermal Design Power
106 W
CrossFire Support
4-way
API Support
DirectX
10.1
Vulkan
-
OpenGL
3.3
OpenCL
1.2




 ModelGPU ModelUnified CoresMemory ClockMemory Config.
ATI Radeon HD 3870 X2 RV670
 
640
 
2 Gbps
 
2 GB GD4 256b
ATI Radeon HD 3870 RV670 XT
 
320
 
2 Gbps
 
512 MB GD4 256b
ATI Radeon HD 3850 RV670 PRO
 
320
 
2 Gbps
 
512 MB GD3 256b
ATI Radeon HD 3690 RV670 PRO
 
320
 
2 Gbps
 
256 MB GD3 128b
ATI Radeon HD 3830 RV670 PRO
 
320
 
2 Gbps
 
256 MB GD3 128b