NVIDIA GeForce GTX 285 Mac Edition vs ATI Radeon HD 4870 Mac Edition
We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 285 Mac Edition 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
NVIDIA GeForce GTX 285 Mac Edition 's Advantages
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (159.0GB/s vs 108.8GB/s)
ATI Radeon HD 4870 Mac Edition 's Advantages
560 additional rendering cores
Lower TDP (150W vs 204W)
Score
Benchmark
FP32 (float)
GeForce GTX 285 Mac Edition
0.708 TFLOPS
Radeon HD 4870 Mac Edition
+69%
1.2 TFLOPS
Graphics Card
Jan 2009
Release Date
Jan 2009
GeForce 200
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
1242 MHz
Memory Clock
850 MHz
Memory
1024MB
Memory Size
512MB
GDDR3
Memory Type
GDDR5
512bit
Memory Bus
256bit
159.0GB/s
Bandwidth
108.8GB/s
Render Config
-
Compute Units
10
30
SM Count
-
240
Shading Units
800
80
TMUs
40
32
ROPs
16
-
-
-
-
-
-
-
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
20.74 GPixel/s
Pixel Rate
12.00 GPixel/s
51.84 GTexel/s
Texture Rate
30.00 GTexel/s
-
-
-
708.5 GFLOPS
FP32 (float)
1200 GFLOPS
88.56 GFLOPS
FP64 (double)
240.0 GFLOPS
Board Design
204W
TDP
150W
550 W
Suggested PSU
450 W
2x DVI
1x S-Video
Outputs
1x DVI
1x mini-DisplayPort 1.0
2x 6-pin
Power Connectors
2x 6-pin
Graphics Processor
GT200B
GPU Name
RV770
G200-350-B3
GPU Variant
RV770 XT Mac
(215-0669080)
Tesla 2.0
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
55 nm
1.4 billion
Transistors
0.956 billion
470 mm²
Die Size
256 mm²
Graphics Features
11.1 (10_0)
DirectX
10.1 (10_1)
3.3
OpenGL
3.3
1.1
OpenCL
1.1
N/A
Vulkan
N/A
1.3
CUDA
-
4.0
Shader Model
4.1
