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GPU Comparison
ATI Radeon HD 4870 Mac Edition vs AMD Radeon 550
ATI Radeon HD 4870 Mac Edition vs AMD Radeon 550
VS
ATI Radeon HD 4870 Mac Edition
AMD Radeon 550
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 Mac Edition and 2GB VRAM Radeon 550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 4870 Mac Edition 's Advantages
Larger VRAM bandwidth (108.8GB/s vs 56.00GB/s)
288 additional rendering cores
AMD Radeon 550 's Advantages
Released 8 years and 3 months late
Boost Clock1183MHz
Lower TDP (50W vs 150W)
Score
Benchmark
FP32 (float)
Radeon HD 4870 Mac Edition
1.2 TFLOPS
Radeon 550
1.211 TFLOPS
Radeon HD 4870 Mac Edition
VS
Radeon 550
Graphics Card
Jan 2009
Release Date
Apr 2017
Radeon R700
Generation
Polaris
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
1100 MHz
-
Boost Clock
1183 MHz
850 MHz
Memory Clock
1750 MHz
Memory
512MB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
64bit
108.8GB/s
Bandwidth
56.00GB/s
Render Config
-
SM Count
-
10
Compute Units
8
800
Shading Units
512
40
TMUs
32
16
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
Theoretical Performance
12.00 GPixel/s
Pixel Rate
18.93 GPixel/s
30.00 GTexel/s
Texture Rate
37.86 GTexel/s
-
FP16 (half)
1211 GFLOPS
1200 GFLOPS
FP32 (float)
1211 GFLOPS
240.0 GFLOPS
FP64 (double)
75.71 GFLOPS
Graphics Processor
RV770
GPU Name
Lexa
RV770 XT Mac (215-0669080)
GPU Variant
Lexa PRO (215-0904018)
TeraScale
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
55 nm
Process Size
14 nm
0.956 billion
Transistors
2.2 billion
256 mm²
Die Size
103 mm²
Board Design
150W
TDP
50W
450 W
Suggested PSU
250 W
1x DVI 1x mini-DisplayPort 1.0
Outputs
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
2x 6-pin
Power Connectors
None
Graphics Features
10.1 (10_1)
DirectX
12 (12_0)
3.3
OpenGL
4.6
1.1
OpenCL
2.1
N/A
Vulkan
1.3
-
CUDA
-
4.1
Shader Model
6.7
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8
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