Radeon R9 280 vs Radeon HD 8860 OEM
We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280 and 2GB VRAM Radeon HD 8860 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon R9 280 's Advantages
Released 1 years and 2 months late
Boost Clock933MHz
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (240.0GB/s vs 179.2GB/s)
512 additional rendering cores
Radeon HD 8860 OEM 's Advantages
Lower TDP (175W vs 200W)
Score
Benchmark
FP32 (float)
Radeon R9 280
+41%
3344
Radeon HD 8860 OEM
2368
Graphics Card
Mar 2014
Release Date
Jan 2013
Volcanic Islands
Generation
Sea Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
827 MHz
Base Clock
-
933 MHz
Boost Clock
-
1250 MHz
Memory Clock
1400 MHz
Memory
3GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
256bit
240.0GB/s
Bandwidth
179.2GB/s
Render Config
28
Compute Units
20
1792
Shading Units
1280
112
TMUs
80
32
ROPs
32
16 KB (per CU)
L1 Cache
16 KB (per CU)
768 KB
L2 Cache
512 KB
Theoretical Performance
29.86 GPixel/s
Pixel Rate
29.60 GPixel/s
104.5 GTexel/s
Texture Rate
74.00 GTexel/s
3.344 TFLOPS
FP32 (float)
2.368 TFLOPS
836.0 GFLOPS
FP64 (double)
148.0 GFLOPS
Board Design
200W
TDP
175W
550 W
Suggested PSU
450 W
1x DVI
2x HDMI 1.4a
1x DisplayPort 1.2
Outputs
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
1x 6-pin
Graphics Processor
Tahiti
GPU Name
Curacao
Tahiti PRO3
(215-0821330)
GPU Variant
Curacao PRO
(215-0848000)
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
4.313 billion
Transistors
2.8 billion
352 mm²
Die Size
212 mm²
Graphics Features
12 (11_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
1.2
OpenCL
1.2
1.2
Vulkan
1.2
5.1
Shader Model
5.1
