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ASUS R9 255 DDR3

Graphics Processor
Cape Verde
Cores
512
TMUs
32
ROPs
16
Memory Size
2 GB
Memory Type
DDR3
Bus Width
128 bit
GPU Chip
GPU Chip
GPU

Graphics Processor

GPU Name
Cape Verde
GPU Variant
Cape Verde PRX
Architecture
GCN 1.0
Foundry
TSMC
Process Size
28 nm
Transistors
1,500 million
Density
12.2M / mm²
Die Size
123 mm²
Chip Package
FCBGA-962

Graphics Card

Release Date
Dec 21st, 2013
Generation
Volcanic Islands
(R9 200)
Predecessor
Sea Islands
Successor
Pirate Islands
Production
End-of-life
Bus Interface
PCIe 3.0 x16

Clock Speeds

Base Clock
900 MHz
800 MHz (-11%)
Boost Clock
930 MHz
900 MHz (-3%)
Memory Clock
1150 MHz
900 MHz (-22%)
4.6 Gbps effective
1800 Mbps effective

Memory

Memory Size
2 GB
Memory Type
GDDR5
DDR3
Memory Bus
128 bit
Bandwidth
73.60 GB/s
28.80 GB/s

Render Config

Shading Units
512
TMUs
32
ROPs
16
Compute Units
8
L1 Cache
16 KB (per CU)
L2 Cache
256 KB

Theoretical Performance

Pixel Rate
14.88 GPixel/s
14.40 GPixel/s
Texture Rate
29.76 GTexel/s
28.80 GTexel/s
FP32 (float)
952.3 GFLOPS
921.6 GFLOPS
FP64 (double)
59.52 GFLOPS
57.60 GFLOPS (1:16)

Board Design

Slot Width
Dual-slot
TDP
65 W
Suggested PSU
250 W
Outputs
No outputs
Power Connectors
1x 6-pin
Board Number
C750

Graphics Features

DirectX
12 (11_1)
OpenGL
4.6
OpenCL
2.1 (1.2)
Vulkan
1.2.170
Shader Model
6.5 (5.1)

Cape Verde GPU Notes

Generation: Southern Islands
Mobile Variant: Chelsea / Heathrow / Venus / Tropo
Graphics/Compute: GFX6 (gfx601)
Display Core Engine: 6.0
Unified Video Decoder: 4.0
Video Compression Engine: 1.0
CLRX: GCN 1.0

Other retail boards based on this design (1)

Name GPU Clock Boost Clock Memory Clock Other Changes
ASUS R9 255 DDR3
800 MHz 900 MHz 900 MHz DDR3
Apr 25th, 2024 01:23 EDT change timezone

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