Radeon HD 7870 GHz Edition vs GeForce GTX 285 Mac Edition
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 GHz Edition and 1024MB VRAM GeForce GTX 285 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon HD 7870 GHz Edition 's Advantages
Released 3 years and 2 months late
More VRAM (2GB vs 1024GB)
1040 additional rendering cores
Lower TDP (175W vs 204W)
GeForce GTX 285 Mac Edition 's Advantages
Larger VRAM bandwidth (159.0GB/s vs 153.6GB/s)
Score
Benchmark
FP32 (float)
Radeon HD 7870 GHz Edition
+261%
2560
GeForce GTX 285 Mac Edition
708
Graphics Card
Mar 2012
Release Date
Jan 2009
Southern Islands
Generation
GeForce 200
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1200 MHz
Memory Clock
1242 MHz
Memory
2GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
512bit
153.6GB/s
Bandwidth
159.0GB/s
Render Config
20
Compute Units
-
-
SM Count
30
1280
Shading Units
240
80
TMUs
80
32
ROPs
32
16 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
256 KB
Theoretical Performance
32.00 GPixel/s
Pixel Rate
20.74 GPixel/s
80.00 GTexel/s
Texture Rate
51.84 GTexel/s
2.560 TFLOPS
FP32 (float)
708.5 GFLOPS
160.0 GFLOPS
FP64 (double)
88.56 GFLOPS
Board Design
175W
TDP
204W
450 W
Suggested PSU
550 W
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
Outputs
2x DVI
1x S-Video
2x 6-pin
Power Connectors
2x 6-pin
Graphics Processor
Pitcairn
GPU Name
GT200B
Pitcairn XT
(215-0828047)
GPU Variant
G200-350-B3
GCN 1.0
Architecture
Tesla 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
2.8 billion
Transistors
1.4 billion
212 mm²
Die Size
470 mm²
Graphics Features
12 (11_1)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
1.2
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
1.3
5.1
Shader Model
4.0
