GeForce 8400 SE vs Radeon HD 7970 GHz Edition
We compared two Desktop platform GPUs: 128MB VRAM GeForce 8400 SE and 3GB VRAM Radeon HD 7970 GHz Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce 8400 SE 's Advantages
Lower TDP (50W vs 300W)
Radeon HD 7970 GHz Edition 's Advantages
Released 3 years and 10 months late
Boost Clock1050MHz
More VRAM (3GB vs 128GB)
Larger VRAM bandwidth (288.0GB/s vs 6.400GB/s)
2032 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce 8400 SE
29
Radeon HD 7970 GHz Edition
+14731%
4301
Graphics Card
Aug 2008
Release Date
Jun 2012
GeForce 8
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 1.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
1000 MHz
-
Boost Clock
1050 MHz
400 MHz
Memory Clock
1500 MHz
Memory
128MB
Memory Size
3GB
DDR2
Memory Type
GDDR5
64bit
Memory Bus
384bit
6.400GB/s
Bandwidth
288.0GB/s
Render Config
-
Compute Units
32
2
SM Count
-
16
Shading Units
2048
8
TMUs
128
4
ROPs
32
-
L1 Cache
16 KB (per CU)
16 KB
L2 Cache
768 KB
Theoretical Performance
1.836 GPixel/s
Pixel Rate
33.60 GPixel/s
3.672 GTexel/s
Texture Rate
134.4 GTexel/s
29.38 GFLOPS
FP32 (float)
4.301 TFLOPS
-
FP64 (double)
1075 GFLOPS
Board Design
50W
TDP
300W
250 W
Suggested PSU
700 W
1x DVI
1x VGA
1x S-Video
Outputs
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
None
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Processor
G86S
GPU Name
Tahiti
-
GPU Variant
Tahiti XT2
(215-0821065)
Tesla
Architecture
GCN 1.0
TSMC
Foundry
TSMC
80 nm
Process Size
28 nm
0.21 billion
Transistors
4.313 billion
127 mm²
Die Size
352 mm²
Graphics Features
11.1 (10_0)
DirectX
12 (11_1)
3.3
OpenGL
4.6
1.1
OpenCL
1.2
N/A
Vulkan
1.2
1.1
CUDA
-
4.0
Shader Model
5.1