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GPU Comparison
AMD Radeon R9 285 vs ATI Radeon HD 4580
AMD Radeon R9 285 vs ATI Radeon HD 4580
VS
AMD Radeon R9 285
ATI Radeon HD 4580
We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 285 and 512MB VRAM Radeon HD 4580 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 285 's Advantages
Released 2 years and 10 months late
Larger VRAM bandwidth (176.0GB/s vs 22.18GB/s)
1672 additional rendering cores
ATI Radeon HD 4580 's Advantages
Lower TDP (65W vs 190W)
Score
Benchmark
FP32 (float)
Radeon R9 285
+1622%
3.29 TFLOPS
Radeon HD 4580
0.191 TFLOPS
Radeon R9 285
VS
Radeon HD 4580
Graphics Card
Sep 2014
Release Date
Nov 2011
Volcanic Islands
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1375 MHz
Memory Clock
693 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
128bit
176.0GB/s
Bandwidth
22.18GB/s
Render Config
-
SM Count
-
28
Compute Units
3
1792
Shading Units
120
112
TMUs
8
32
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
128 KB
Theoretical Performance
29.38 GPixel/s
Pixel Rate
3.184 GPixel/s
102.8 GTexel/s
Texture Rate
6.368 GTexel/s
3.290 TFLOPS
FP16 (half)
-
3.290 TFLOPS
FP32 (float)
191.0 GFLOPS
205.6 GFLOPS
FP64 (double)
-
Graphics Processor
Tonga
GPU Name
RV635
Tonga PRO (215-0851128)
GPU Variant
RV635 PRO (215-0682008)
GCN 3.0
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
5 billion
Transistors
0.378 billion
366 mm²
Die Size
135 mm²
Board Design
190W
TDP
65W
450 W
Suggested PSU
250 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x S-Video
2x 6-pin
Power Connectors
None
Graphics Features
12 (12_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
2.1
OpenCL
N/A
1.2.170
Vulkan
N/A
-
CUDA
-
6.5
Shader Model
4.1
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8
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