Radeon HD 7770 GHz Edition vs GeForce 9400 GT PCI
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7770 GHz Edition and 256MB VRAM GeForce 9400 GT PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon HD 7770 GHz Edition 's Advantages
Released 3 years and 6 months late
More VRAM (1024GB vs 256GB)
Larger VRAM bandwidth (72.00GB/s vs 12.80GB/s)
624 additional rendering cores
GeForce 9400 GT PCI 's Advantages
Lower TDP (50W vs 80W)
Score
Benchmark
FP32 (float)
Radeon HD 7770 GHz Edition
+2744%
1280
GeForce 9400 GT PCI
45
Graphics Card
Feb 2012
Release Date
Aug 2008
Southern Islands
Generation
GeForce 9
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCI
Clock Speeds
1125 MHz
Memory Clock
400 MHz
Memory
1024MB
Memory Size
256MB
GDDR5
Memory Type
DDR2
128bit
Memory Bus
128bit
72.00GB/s
Bandwidth
12.80GB/s
Render Config
10
Compute Units
-
-
SM Count
2
640
Shading Units
16
40
TMUs
8
16
ROPs
4
16 KB (per CU)
L1 Cache
-
256 KB
L2 Cache
32 KB
Theoretical Performance
16.00 GPixel/s
Pixel Rate
2.200 GPixel/s
40.00 GTexel/s
Texture Rate
4.400 GTexel/s
1280 GFLOPS
FP32 (float)
44.80 GFLOPS
80.00 GFLOPS
FP64 (double)
-
Board Design
80W
TDP
50W
250 W
Suggested PSU
250 W
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
Outputs
1x DVI
1x VGA
1x S-Video
1x 6-pin
Power Connectors
None
Graphics Processor
Cape Verde
GPU Name
G96C
Cape Verde XT
GPU Variant
-
GCN 1.0
Architecture
Tesla
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
1.5 billion
Transistors
0.314 billion
123 mm²
Die Size
121 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
1.1
5.1
Shader Model
4.0