AMD Radeon R7 265X OEM vs AMD Radeon R9 285X
GPU · Specs Compare
Graphics Card
Release Date
Aug 2014
Unknown
Generation
Volcanic Islands
Volcanic Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
900 MHz
—
Boost Clock
925 MHz
—
Memory Clock
1400 MHz
1375 MHz
Memory
Memory Size
2GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
179.2GB/s
264.0GB/s
Render Config
Compute Units
20
32
Shading Units
1280
2048
TMUs
80
128
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
768 KB
Theoretical Performance
Pixel Rate
29.60 GPixel/s
32.06 GPixel/s
Texture Rate
74.00 GTexel/s
128.3 GTexel/s
FP32 (float)
2.368 TFLOPS
4.104 TFLOPS
FP64 (double)
148.0 GFLOPS
—
Graphics Processor
GPU Name
Curacao
Tonga
GPU Variant
Curacao PRO(215-0848000)
Tonga XT(215-0851313)
Architecture
GCN 1.0
GCN 3.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.8 billion
5 billion
Die Size
212 mm²
366 mm²
Board Design
TDP
150W
200W
Suggested PSU
450 W
550 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
1.2
2.0
Vulkan
1.2
1.2
Shader Model
5.1
6.3
▲ Specs Compare
Data sourced from official specifications and benchmark tests.