Home GPU Comparison NVIDIA GeForce 8400 GS Rev. 3 vs AMD Radeon HD 7970 X2

NVIDIA GeForce 8400 GS Rev. 3 vs AMD Radeon HD 7970 X2

We compared two Desktop platform GPUs: 512MB VRAM GeForce 8400 GS Rev. 3 and 3GB VRAM Radeon HD 7970 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8400 GS Rev. 3 's Advantages
Lower TDP (25W vs 500W)
AMD Radeon HD 7970 X2 's Advantages
Released 2 years and 1 months late
More VRAM (3GB vs 512GB)
Larger VRAM bandwidth (264.0GB/s vs 6.400GB/s)
2040 additional rendering cores

Score

Benchmark

FP32 (float)
GeForce 8400 GS Rev. 3
0.02 TFLOPS
Radeon HD 7970 X2 +18845%
3.789 TFLOPS
VS

Graphics Card

Jul 2010
Release Date
Aug 2012
GeForce 8
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
400 MHz
Memory Clock
1375 MHz

Memory

512MB
Memory Size
3GB
DDR2
Memory Type
GDDR5
64bit
Memory Bus
384bit
6.400GB/s
Bandwidth
264.0GB/s

Render Config

-
Compute Units
32
1
SM Count
-
8
Shading Units
2048
4
TMUs
128
4
ROPs
32
-
-
-
-
-
-
-
L1 Cache
16 KB (per CU)
32 KB
L2 Cache
768 KB
-
-
-

Theoretical Performance

2.080 GPixel/s
Pixel Rate
29.60 GPixel/s
2.080 GTexel/s
Texture Rate
118.4 GTexel/s
-
-
-
19.68 GFLOPS
FP32 (float)
3.789 TFLOPS
-
FP64 (double)
947.2 GFLOPS

Board Design

25W
TDP
500W
200 W
Suggested PSU
900 W
1x DVI 1x VGA 1x S-Video
Outputs
2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
None
Power Connectors
3x 8-pin

Graphics Processor

GT218
GPU Name
New Zealand
8400GS-225-B1
GPU Variant
-
Tesla 2.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.26 billion
Transistors
4.313 billion
57 mm²
Die Size
352 mm²

Graphics Features

11.1 (10_1)
DirectX
12 (11_1)
3.3
OpenGL
4.6
1.1
OpenCL
1.2
N/A
Vulkan
1.2
1.2
CUDA
-
4.1
Shader Model
5.1

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