Radeon HD 7870 GHz Edition vs Radeon HD 3730
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 GHz Edition and 512MB VRAM Radeon HD 3730 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 5 months late
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (153.6GB/s vs 12.67GB/s)
1160 additional rendering cores
Radeon HD 3730 's Advantages
Lower TDP (65W vs 175W)
Score
Benchmark
FP32 (float)
Radeon HD 7870 GHz Edition
+1379%
2560
Radeon HD 3730
173
Graphics Card
Mar 2012
Release Date
Oct 2008
Southern Islands
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1200 MHz
Memory Clock
396 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
DDR2
256bit
Memory Bus
128bit
153.6GB/s
Bandwidth
12.67GB/s
Render Config
20
Compute Units
3
1280
Shading Units
120
80
TMUs
8
32
ROPs
4
16 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
128 KB
Theoretical Performance
32.00 GPixel/s
Pixel Rate
2.888 GPixel/s
80.00 GTexel/s
Texture Rate
5.776 GTexel/s
2.560 TFLOPS
FP32 (float)
173.3 GFLOPS
160.0 GFLOPS
FP64 (double)
-
Board Design
175W
TDP
65W
450 W
Suggested PSU
250 W
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
Outputs
2x DVI
1x S-Video
2x 6-pin
Power Connectors
None
Graphics Processor
Pitcairn
GPU Name
RV635
Pitcairn XT
(215-0828047)
GPU Variant
RV635 PRO
(215-0682008)
GCN 1.0
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
2.8 billion
Transistors
0.378 billion
212 mm²
Die Size
135 mm²
Graphics Features
12 (11_1)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
1.2
OpenCL
N/A
1.2
Vulkan
N/A
5.1
Shader Model
4.1
