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GPU Comparison
ATI Radeon HD 3870 Mac Edition vs ATI Radeon HD 2600 XT
ATI Radeon HD 3870 Mac Edition vs ATI Radeon HD 2600 XT
VS
ATI Radeon HD 3870 Mac Edition
ATI Radeon HD 2600 XT
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 Mac Edition and 256MB VRAM ATI Radeon HD 2600 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 3870 Mac Edition 's Advantages
Released 1 years late
More VRAM (512GB vs 256GB)
Larger VRAM bandwidth (72.06GB/s vs 22.40GB/s)
200 additional rendering cores
ATI Radeon HD 2600 XT 's Advantages
Lower TDP (45W vs 106W)
Score
Benchmark
FP32 (float)
Radeon HD 3870 Mac Edition
+158%
0.497 TFLOPS
ATI Radeon HD 2600 XT
0.192 TFLOPS
Radeon HD 3870 Mac Edition
VS
ATI Radeon HD 2600 XT
Graphics Card
Jun 2008
Release Date
Jun 2007
Radeon R600
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
-
-
-
-
-
-
1126 MHz
Memory Clock
700 MHz
Memory
512MB
Memory Size
256MB
GDDR4
Memory Type
GDDR3
256bit
Memory Bus
128bit
72.06GB/s
Bandwidth
22.40GB/s
Render Config
4
Compute Units
3
-
-
-
320
Shading Units
120
16
TMUs
8
16
ROPs
4
-
-
-
-
-
-
-
-
-
256 KB
L2 Cache
64 KB
-
-
-
Theoretical Performance
12.43 GPixel/s
Pixel Rate
3.200 GPixel/s
12.43 GTexel/s
Texture Rate
6.400 GTexel/s
-
-
-
497.3 GFLOPS
FP32 (float)
192.0 GFLOPS
99.46 GFLOPS
FP64 (double)
-
Board Design
106W
TDP
45W
300 W
Suggested PSU
200 W
2x DVI 1x S-Video
Outputs
2x DVI 1x S-Video
1x 6-pin
Power Connectors
None
Graphics Processor
RV670
GPU Name
RV630
RV670 XT (215-0708005)
GPU Variant
-
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
65 nm
0.666 billion
Transistors
0.39 billion
192 mm²
Die Size
153 mm²
Graphics Features
10.1 (10_1)
DirectX
10.0 (10_0)
3.3 (full) 4.0 (partial)
OpenGL
3.3
N/A
OpenCL
N/A
N/A
Vulkan
N/A
-
-
-
4.1
Shader Model
4.0
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