GeForce 8400 GS PCI vs Radeon R9 280X2
We compared two Desktop platform GPUs: 512MB VRAM GeForce 8400 GS PCI and 3GB VRAM Radeon R9 280X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce 8400 GS PCI 's Advantages
Lower TDP (25W vs 375W)
Radeon R9 280X2 's Advantages
Boost Clock1000MHz
More VRAM (3GB vs 512GB)
Larger VRAM bandwidth (288.0GB/s vs 5.328GB/s)
2040 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce 8400 GS PCI
22
Radeon R9 280X2
+18518%
4096
Graphics Card
Dec 2007
Release Date
Unknown
GeForce 8
Generation
Volcanic Islands
Desktop
Type
Desktop
PCI
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
950 MHz
-
Boost Clock
1000 MHz
333 MHz
Memory Clock
1500 MHz
Memory
512MB
Memory Size
3GB
DDR2
Memory Type
GDDR5
64bit
Memory Bus
384bit
5.328GB/s
Bandwidth
288.0GB/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)
16 KB
L2 Cache
768 KB
Theoretical Performance
2.268 GPixel/s
Pixel Rate
32.00 GPixel/s
2.268 GTexel/s
Texture Rate
128.0 GTexel/s
22.40 GFLOPS
FP32 (float)
4.096 TFLOPS
-
FP64 (double)
1024 GFLOPS
Board Design
25W
TDP
375W
200 W
Suggested PSU
750 W
1x S-Video
1x DMS-59
Outputs
6x mini-DisplayPort 1.2
None
Power Connectors
3x 8-pin
Graphics Processor
G98
GPU Name
Tahiti
G98-400-U2
GPU Variant
Tahiti XTL
(215-0821065)
Tesla
Architecture
GCN 1.0
TSMC
Foundry
TSMC
65 nm
Process Size
28 nm
0.21 billion
Transistors
4.313 billion
86 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