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GPU Comparison
ATI Radeon HD 4870 Mac Edition vs AMD Radeon R7 250X
ATI Radeon HD 4870 Mac Edition vs AMD Radeon R7 250X
VS
ATI Radeon HD 4870 Mac Edition
AMD Radeon R7 250X
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 Mac Edition and 1024MB VRAM Radeon R7 250X 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 72.00GB/s)
160 additional rendering cores
AMD Radeon R7 250X 's Advantages
Released 5 years and 1 months late
More VRAM (1024GB vs 512GB)
Lower TDP (80W vs 150W)
Score
Benchmark
FP32 (float)
Radeon HD 4870 Mac Edition
1.2 TFLOPS
Radeon R7 250X
+1%
1.216 TFLOPS
Radeon HD 4870 Mac Edition
VS
Radeon R7 250X
Graphics Card
Jan 2009
Release Date
Feb 2014
Radeon R700
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
850 MHz
Memory Clock
1125 MHz
Memory
512MB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
108.8GB/s
Bandwidth
72.00GB/s
Render Config
-
SM Count
-
10
Compute Units
10
800
Shading Units
640
40
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
12.00 GPixel/s
Pixel Rate
15.20 GPixel/s
30.00 GTexel/s
Texture Rate
38.00 GTexel/s
-
FP16 (half)
-
1200 GFLOPS
FP32 (float)
1216 GFLOPS
240.0 GFLOPS
FP64 (double)
76.00 GFLOPS
Graphics Processor
RV770
GPU Name
Cape Verde
RV770 XT Mac (215-0669080)
GPU Variant
Cape Verde XT
TeraScale
Architecture
GCN 1.0
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
0.956 billion
Transistors
1.5 billion
256 mm²
Die Size
123 mm²
Board Design
150W
TDP
80W
450 W
Suggested PSU
250 W
1x DVI 1x mini-DisplayPort 1.0
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
2x 6-pin
Power Connectors
1x 6-pin
Graphics Features
10.1 (10_1)
DirectX
12 (11_1)
3.3
OpenGL
4.6
1.1
OpenCL
1.2
N/A
Vulkan
1.2
-
CUDA
-
4.1
Shader Model
5.1
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8
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