Home GPU Comparison NVIDIA GeForce 9400 GT vs AMD Radeon HD 7950

NVIDIA GeForce 9400 GT vs AMD Radeon HD 7950

We compared two Desktop platform GPUs: 128MB VRAM GeForce 9400 GT and 3GB VRAM Radeon HD 7950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 9400 GT 's Advantages
Lower TDP (50W vs 200W)
AMD Radeon HD 7950 's Advantages
Released 3 years and 5 months late
More VRAM (3GB vs 128GB)
Larger VRAM bandwidth (240.0GB/s vs 9.600GB/s)
1776 additional rendering cores

Score

Benchmark

FP32 (float)
GeForce 9400 GT
0.029 TFLOPS
Radeon HD 7950 +9786%
2.867 TFLOPS
VS

Graphics Card

Aug 2008
Release Date
Jan 2012
GeForce 9
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
600 MHz
Memory Clock
1250 MHz

Memory

128MB
Memory Size
3GB
DDR2
Memory Type
GDDR5
64bit
Memory Bus
384bit
9.600GB/s
Bandwidth
240.0GB/s

Render Config

-
Compute Units
28
2
SM Count
-
16
Shading Units
1792
8
TMUs
112
4
ROPs
32
-
-
-
-
-
-
-
L1 Cache
16 KB (per CU)
16 KB
L2 Cache
768 KB
-
-
-

Theoretical Performance

1.836 GPixel/s
Pixel Rate
25.60 GPixel/s
3.672 GTexel/s
Texture Rate
89.60 GTexel/s
-
-
-
29.38 GFLOPS
FP32 (float)
2.867 TFLOPS
-
FP64 (double)
716.8 GFLOPS

Board Design

50W
TDP
200W
250 W
Suggested PSU
550 W
1x DVI 1x VGA 1x S-Video
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
None
Power Connectors
2x 6-pin

Graphics Processor

G86
GPU Name
Tahiti
-
GPU Variant
Tahiti PRO (215-0821056)
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

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