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GPU Comparison
AMD Radeon HD 7950 Mac Edition vs ATI Radeon HD 4580
AMD Radeon HD 7950 Mac Edition vs ATI Radeon HD 4580
VS
AMD Radeon HD 7950 Mac Edition
ATI Radeon HD 4580
We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Mac Edition 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 HD 7950 Mac Edition 's Advantages
Released 1 years and 4 months late
Larger VRAM bandwidth (240.0GB/s vs 22.18GB/s)
1672 additional rendering cores
ATI Radeon HD 4580 's Advantages
Lower TDP (65W vs 200W)
Score
Benchmark
FP32 (float)
Radeon HD 7950 Mac Edition
+1401%
2.867 TFLOPS
Radeon HD 4580
0.191 TFLOPS
Radeon HD 7950 Mac Edition
VS
Radeon HD 4580
Graphics Card
Mar 2013
Release Date
Nov 2011
Southern Islands
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1250 MHz
Memory Clock
693 MHz
Memory
3GB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
384bit
Memory Bus
128bit
240.0GB/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
-
768 KB
L2 Cache
128 KB
Theoretical Performance
25.60 GPixel/s
Pixel Rate
3.184 GPixel/s
89.60 GTexel/s
Texture Rate
6.368 GTexel/s
-
FP16 (half)
-
2.867 TFLOPS
FP32 (float)
191.0 GFLOPS
716.8 GFLOPS
FP64 (double)
-
Graphics Processor
Tahiti
GPU Name
RV635
Tahiti PRO (215-0821056)
GPU Variant
RV635 PRO (215-0682008)
GCN 1.0
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
4.313 billion
Transistors
0.378 billion
352 mm²
Die Size
135 mm²
Board Design
200W
TDP
65W
550 W
Suggested PSU
250 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
2x DVI 1x S-Video
2x 6-pin
Power Connectors
None
Graphics Features
12 (11_1)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
1.2
OpenCL
N/A
1.2
Vulkan
N/A
-
CUDA
-
5.1
Shader Model
4.1
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