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GPU Comparison
AMD Radeon R7 450 OEM vs ATI Radeon HD 4870 Mac Edition
AMD Radeon R7 450 OEM vs ATI Radeon HD 4870 Mac Edition
VS
AMD Radeon R7 450 OEM
ATI Radeon HD 4870 Mac Edition
We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 450 OEM and 512MB VRAM Radeon HD 4870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R7 450 OEM 's Advantages
Released 7 years and 5 months late
Lower TDP (65W vs 150W)
ATI Radeon HD 4870 Mac Edition 's Advantages
Larger VRAM bandwidth (108.8GB/s vs 72.00GB/s)
288 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon R7 450 OEM
0.947 TFLOPS
Radeon HD 4870 Mac Edition
+26%
1.2 TFLOPS
Radeon R7 450 OEM
VS
Radeon HD 4870 Mac Edition
Graphics Card
Jun 2016
Release Date
Jan 2009
Arctic Islands
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1125 MHz
Memory Clock
850 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
256bit
72.00GB/s
Bandwidth
108.8GB/s
Render Config
-
SM Count
-
8
Compute Units
10
512
Shading Units
800
32
TMUs
40
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
14.80 GPixel/s
Pixel Rate
12.00 GPixel/s
29.60 GTexel/s
Texture Rate
30.00 GTexel/s
-
FP16 (half)
-
947.2 GFLOPS
FP32 (float)
1200 GFLOPS
59.20 GFLOPS
FP64 (double)
240.0 GFLOPS
Graphics Processor
Cape Verde
GPU Name
RV770
Cape Verde PRO2
GPU Variant
RV770 XT Mac (215-0669080)
GCN 1.0
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
1.5 billion
Transistors
0.956 billion
123 mm²
Die Size
256 mm²
Board Design
65W
TDP
150W
250 W
Suggested PSU
450 W
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x mini-DisplayPort 1.0
None
Power Connectors
2x 6-pin
Graphics Features
12 (11_1)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
2.1 (1.2)
OpenCL
1.1
1.2.170
Vulkan
N/A
-
CUDA
-
6.5 (5.1)
Shader Model
4.1
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