Radeon R9 280 vs GeForce GTX 285 Mac Edition
We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280 and 1024MB VRAM GeForce GTX 285 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon R9 280 's Advantages
Released 5 years and 2 months late
Boost Clock933MHz
More VRAM (3GB vs 1024GB)
Larger VRAM bandwidth (240.0GB/s vs 159.0GB/s)
1552 additional rendering cores
Lower TDP (200W vs 204W)
Score
Benchmark
FP32 (float)
Radeon R9 280
+372%
3344
GeForce GTX 285 Mac Edition
708
Graphics Card
Mar 2014
Release Date
Jan 2009
Volcanic Islands
Generation
GeForce 200
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
827 MHz
Base Clock
-
933 MHz
Boost Clock
-
1250 MHz
Memory Clock
1242 MHz
Memory
3GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR3
384bit
Memory Bus
512bit
240.0GB/s
Bandwidth
159.0GB/s
Render Config
28
Compute Units
-
-
SM Count
30
1792
Shading Units
240
112
TMUs
80
32
ROPs
32
16 KB (per CU)
L1 Cache
-
768 KB
L2 Cache
256 KB
Theoretical Performance
29.86 GPixel/s
Pixel Rate
20.74 GPixel/s
104.5 GTexel/s
Texture Rate
51.84 GTexel/s
3.344 TFLOPS
FP32 (float)
708.5 GFLOPS
836.0 GFLOPS
FP64 (double)
88.56 GFLOPS
Board Design
200W
TDP
204W
550 W
Suggested PSU
550 W
1x DVI
2x HDMI 1.4a
1x DisplayPort 1.2
Outputs
2x DVI
1x S-Video
1x 6-pin + 1x 8-pin
Power Connectors
2x 6-pin
Graphics Processor
Tahiti
GPU Name
GT200B
Tahiti PRO3
(215-0821330)
GPU Variant
G200-350-B3
GCN 1.0
Architecture
Tesla 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
4.313 billion
Transistors
1.4 billion
352 mm²
Die Size
470 mm²
Graphics Features
12 (11_1)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
1.2
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
1.3
5.1
Shader Model
4.0
