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GPU Comparison
ATI Radeon HD 4870 Mac Edition vs ATI Radeon HD 4250
ATI Radeon HD 4870 Mac Edition vs ATI Radeon HD 4250
VS
ATI Radeon HD 4870 Mac Edition
ATI Radeon HD 4250
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 Mac Edition and 512MB VRAM Radeon HD 4250 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 6.336GB/s)
760 additional rendering cores
ATI Radeon HD 4250 's Advantages
Lower TDP (25W vs 150W)
Score
Benchmark
FP32 (float)
Radeon HD 4870 Mac Edition
+2400%
1.2 TFLOPS
Radeon HD 4250
0.048 TFLOPS
Radeon HD 4870 Mac Edition
VS
Radeon HD 4250
Graphics Card
Jan 2009
Release Date
Feb 2009
Radeon R700
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
850 MHz
Memory Clock
396 MHz
Memory
512MB
Memory Size
512MB
GDDR5
Memory Type
DDR2
256bit
Memory Bus
64bit
108.8GB/s
Bandwidth
6.336GB/s
Render Config
-
SM Count
-
10
Compute Units
2
800
Shading Units
40
40
TMUs
4
16
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
-
256 KB
L2 Cache
64 KB
Theoretical Performance
12.00 GPixel/s
Pixel Rate
2.376 GPixel/s
30.00 GTexel/s
Texture Rate
2.376 GTexel/s
-
FP16 (half)
-
1200 GFLOPS
FP32 (float)
47.52 GFLOPS
240.0 GFLOPS
FP64 (double)
-
Graphics Processor
RV770
GPU Name
RV620
RV770 XT Mac (215-0669080)
GPU Variant
RV620 LE
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
55 nm
0.956 billion
Transistors
0.181 billion
256 mm²
Die Size
67 mm²
Board Design
150W
TDP
25W
450 W
Suggested PSU
200 W
1x DVI 1x mini-DisplayPort 1.0
Outputs
1x DVI 1x VGA 1x S-Video
2x 6-pin
Power Connectors
None
Graphics Features
10.1 (10_1)
DirectX
10.1 (10_1)
3.3
OpenGL
3.3
1.1
OpenCL
N/A
N/A
Vulkan
N/A
-
CUDA
-
4.1
Shader Model
4.1
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