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GPU Comparison
AMD Radeon R9 285X vs AMD Radeon HD 8860 OEM
AMD Radeon R9 285X vs AMD Radeon HD 8860 OEM
VS
AMD Radeon R9 285X
AMD Radeon HD 8860 OEM
We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 285X and 2GB VRAM Radeon HD 8860 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 285X 's Advantages
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (264.0GB/s vs 179.2GB/s)
768 additional rendering cores
AMD Radeon HD 8860 OEM 's Advantages
Lower TDP (175W vs 200W)
Score
Benchmark
FP32 (float)
Radeon R9 285X
+73%
4.104 TFLOPS
Radeon HD 8860 OEM
2.368 TFLOPS
Radeon R9 285X
VS
Radeon HD 8860 OEM
Graphics Card
Unknown
Release Date
Jan 2013
Volcanic Islands
Generation
Sea Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1375 MHz
Memory Clock
1400 MHz
Memory
3GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
256bit
264.0GB/s
Bandwidth
179.2GB/s
Render Config
-
SM Count
-
32
Compute Units
20
2048
Shading Units
1280
128
TMUs
80
32
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
768 KB
L2 Cache
512 KB
Theoretical Performance
32.06 GPixel/s
Pixel Rate
29.60 GPixel/s
128.3 GTexel/s
Texture Rate
74.00 GTexel/s
-
FP16 (half)
-
4.104 TFLOPS
FP32 (float)
2.368 TFLOPS
-
FP64 (double)
148.0 GFLOPS
Graphics Processor
Tonga
GPU Name
Curacao
Tonga XT (215-0851313)
GPU Variant
Curacao PRO (215-0848000)
GCN 3.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5 billion
Transistors
2.8 billion
366 mm²
Die Size
212 mm²
Board Design
200W
TDP
175W
550 W
Suggested PSU
450 W
2x DVI 1x 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 Features
12 (12_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.0
OpenCL
1.2
1.2
Vulkan
1.2
-
CUDA
-
6.3
Shader Model
5.1
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