Radeon R9 280 vs GeForce GTX 660
We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280 and 2GB VRAM GeForce GTX 660 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 6 months late
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (240.0GB/s vs 144.2GB/s)
832 additional rendering cores
GeForce GTX 660 's Advantages
Boost Clock has increased by 11% (1032MHz vs 933MHz)
Lower TDP (140W vs 200W)
Score
Benchmark
FP32 (float)
Radeon R9 280
+68%
3344
GeForce GTX 660
1981
3DMark Time Spy
Radeon R9 280
+68%
2009
GeForce GTX 660
1194
Graphics Card
Mar 2014
Release Date
Sep 2012
Volcanic Islands
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
827 MHz
Base Clock
980 MHz
933 MHz
Boost Clock
1032 MHz
1250 MHz
Memory Clock
1502 MHz
Memory
3GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
192bit
240.0GB/s
Bandwidth
144.2GB/s
Render Config
28
Compute Units
-
1792
Shading Units
960
112
TMUs
80
32
ROPs
24
16 KB (per CU)
L1 Cache
16 KB (per SMX)
768 KB
L2 Cache
384 KB
Theoretical Performance
29.86 GPixel/s
Pixel Rate
20.64 GPixel/s
104.5 GTexel/s
Texture Rate
82.56 GTexel/s
3.344 TFLOPS
FP32 (float)
1.981 TFLOPS
836.0 GFLOPS
FP64 (double)
82.56 GFLOPS
Board Design
200W
TDP
140W
550 W
Suggested PSU
300 W
1x DVI
2x HDMI 1.4a
1x DisplayPort 1.2
Outputs
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
1x 6-pin
Graphics Processor
Tahiti
GPU Name
GK106
Tahiti PRO3
(215-0821330)
GPU Variant
GK106-400-A1
GCN 1.0
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
4.313 billion
Transistors
2.54 billion
352 mm²
Die Size
221 mm²
Graphics Features
12 (11_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.2
OpenCL
3.0
1.2
Vulkan
1.1
-
CUDA
3.0
5.1
Shader Model
5.1
