AMD Radeon R9 270 vs AMD Radeon R9 280
GPU Specs Compare
Graphics Card
Release Date
Nov 2013
Mar 2014
Generation
Volcanic Islands
Volcanic Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
900 MHz
827 MHz
Boost Clock
925 MHz
933 MHz
Memory Clock
1400 MHz
1250 MHz
Memory
Memory Size
2GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
179.2GB/s
240.0GB/s
Render Config
Compute Units
20
28
Shading Units
1280
1792
TMUs
80
112
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
29.86 GPixel/s
Texture Rate
74.00 GTexel/s
104.5 GTexel/s
FP32 (float)
2.368 TFLOPS
3.344 TFLOPS
FP64 (double)
148.0 GFLOPS
836.0 GFLOPS
Graphics Processor
GPU Name
Curacao
Tahiti
GPU Variant
Curacao PRO(215-0848000)
Tahiti PRO3(215-0821330)
Architecture
GCN 1.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.8 billion
4.313 billion
Die Size
212 mm²
352 mm²
Board Design
TDP
150W
200W
Suggested PSU
450 W
550 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x DVI2x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
1.2
1.2
Vulkan
1.2
1.2
Shader Model
5.1
5.1
📊 Benchmark
3DMark Time Spy
1,603
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