NVIDIA GeForce GTX 285 Mac Edition vs ATI Radeon HD 3870 Mac Edition
We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 285 Mac Edition and 512MB VRAM Radeon HD 3870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 285 Mac Edition 's Advantages
Released 7 months late
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (159.0GB/s vs 72.06GB/s)
ATI Radeon HD 3870 Mac Edition 's Advantages
80 additional rendering cores
Lower TDP (106W vs 204W)
Score
Benchmark
FP32 (float)
GeForce GTX 285 Mac Edition
+42%
0.708 TFLOPS
Radeon HD 3870 Mac Edition
0.497 TFLOPS
Graphics Card
Jan 2009
Release Date
Jun 2008
GeForce 200
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
1242 MHz
Memory Clock
1126 MHz
Memory
1024MB
Memory Size
512MB
GDDR3
Memory Type
GDDR4
512bit
Memory Bus
256bit
159.0GB/s
Bandwidth
72.06GB/s
Render Config
-
Compute Units
4
30
SM Count
-
240
Shading Units
320
80
TMUs
16
32
ROPs
16
-
-
-
-
-
-
-
-
-
256 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
20.74 GPixel/s
Pixel Rate
12.43 GPixel/s
51.84 GTexel/s
Texture Rate
12.43 GTexel/s
-
-
-
708.5 GFLOPS
FP32 (float)
497.3 GFLOPS
88.56 GFLOPS
FP64 (double)
99.46 GFLOPS
Board Design
204W
TDP
106W
550 W
Suggested PSU
300 W
2x DVI
1x S-Video
Outputs
2x DVI
1x S-Video
2x 6-pin
Power Connectors
1x 6-pin
Graphics Processor
GT200B
GPU Name
RV670
G200-350-B3
GPU Variant
RV670 XT
(215-0708005)
Tesla 2.0
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
55 nm
1.4 billion
Transistors
0.666 billion
470 mm²
Die Size
192 mm²
Graphics Features
11.1 (10_0)
DirectX
10.1 (10_1)
3.3
OpenGL
3.3 (full)
4.0 (partial)
1.1
OpenCL
N/A
N/A
Vulkan
N/A
1.3
CUDA
-
4.0
Shader Model
4.1
