Architecture
AMD VLIW5 TeraScale 2 40nm
Most Powerful Variant
RV740 XT
Cores : TMUs : ROPs
640 : 32 : 16
Typical Memory Size
512 MB
Typical Memory Bus
128 -bit
RV740 GPU
Overview
Manufacturer
AMD
Release Date
April 28th, 2009
Graphics Processing Unit
Architecture
VLIW5 TeraScale 2
Fabrication Process
40 nm
Die Size
137 mm2
Transistors Count
826M
Stream Cores
640
TMUs
32
ROPs
16
Clocks
Base Clock
750 MHz
Memory Configuration
Memory Size
512 MB
Memory Type
GDDR5
Memory Bus Width
128-bit
Memory Bandwidth
51.2 GB/s
Performance
Pixel Fillrate
12 GPixels/s
Texture Fillrate
24 GTexel/s
SPFP Performance
960 GFLOPS
Performance per W
12 GFLOPS/W
Performance per mm2
7 GFLOPS/mm2
Physical
Interface
PCI-Express 2.0 x16
Typical Thermal Design Power
80 W
CrossFire Support
3-way
API Support
DirectX
11.0
Vulkan
-
OpenGL
4.4
OpenCL
1.2
| Model | GPU Model | Unified Cores | Memory Clock | Memory Config. | |
|---|---|---|---|---|---|
 | ATI Radeon HD 4770 | RV740 XT | |||
 | ATI Radeon HD 4750 | RV740 PRO |
