GeForce 8400 GS PCI vs Radeon HD 2900 XT
We compared two Desktop platform GPUs: 512MB VRAM GeForce 8400 GS PCI and 512MB VRAM Radeon HD 2900 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce 8400 GS PCI 's Advantages
Released 7 months late
Lower TDP (25W vs 215W)
Radeon HD 2900 XT 's Advantages
Larger VRAM bandwidth (106.0GB/s vs 5.328GB/s)
312 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce 8400 GS PCI
22
Radeon HD 2900 XT
+2063%
476
Graphics Card
Dec 2007
Release Date
May 2007
GeForce 8
Generation
Radeon R600
Desktop
Type
Desktop
PCI
Bus Interface
PCIe 1.0 x16
Clock Speeds
333 MHz
Memory Clock
828 MHz
Memory
512MB
Memory Size
512MB
DDR2
Memory Type
GDDR3
64bit
Memory Bus
512bit
5.328GB/s
Bandwidth
106.0GB/s
Render Config
-
Compute Units
4
1
SM Count
-
8
Shading Units
320
4
TMUs
16
4
ROPs
16
16 KB
L2 Cache
256 KB
Theoretical Performance
2.268 GPixel/s
Pixel Rate
11.89 GPixel/s
2.268 GTexel/s
Texture Rate
11.89 GTexel/s
22.40 GFLOPS
FP32 (float)
475.5 GFLOPS
Board Design
25W
TDP
215W
200 W
Suggested PSU
550 W
1x S-Video
1x DMS-59
Outputs
2x DVI
1x S-Video
None
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Processor
G98
GPU Name
R600
G98-400-U2
GPU Variant
R600 XT
(215RGMDKA13FG)
Tesla
Architecture
TeraScale
TSMC
Foundry
TSMC
65 nm
Process Size
80 nm
0.21 billion
Transistors
0.72 billion
86 mm²
Die Size
420 mm²
Graphics Features
11.1 (10_0)
DirectX
10.0 (10_0)
3.3
OpenGL
3.3 (full)
4.0 (partial)
1.1
OpenCL
N/A
N/A
Vulkan
N/A
1.1
CUDA
-
4.0
Shader Model
4.0