ATI Radeon HD 2900 XT vs NVIDIA GeForce 9400 GT
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XT and 1 GB VRAM GeForce 9400 GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 2900 XT 's Advantages
More VRAM (512GB vs 1GB)
Larger VRAM bandwidth (106.0GB/s vs 9.600GB/s)
304 additional rendering cores
NVIDIA GeForce 9400 GT 's Advantages
Released 1 years and 3 months late
Lower TDP (50W vs 215W)
Score
Benchmark
FP32 (float)
Radeon HD 2900 XT
+1541%
0.476 TFLOPS
GeForce 9400 GT
0.029 TFLOPS
Graphics Card
May 2007
Release Date
Aug 2008
Radeon R600
Generation
GeForce 9
Desktop
Type
Desktop
PCIe 1.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
828 MHz
Memory Clock
600 MHz
Memory
512MB
Memory Size
1 GB
GDDR3
Memory Type
DDR2
512bit
Memory Bus
64bit
106.0GB/s
Bandwidth
9.600GB/s
Render Config
4
Compute Units
-
-
SM Count
2
320
Shading Units
16
16
TMUs
8
16
ROPs
4
-
-
-
-
-
-
-
-
-
256 KB
L2 Cache
16 KB
-
-
-
Theoretical Performance
11.89 GPixel/s
Pixel Rate
1.836 GPixel/s
11.89 GTexel/s
Texture Rate
3.672 GTexel/s
-
-
-
475.5 GFLOPS
FP32 (float)
29.38 GFLOPS
-
-
-
Board Design
215W
TDP
50W
550 W
Suggested PSU
250 W
2x DVI
1x S-Video
Outputs
1x DVI
1x VGA
1x S-Video
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Processor
R600
GPU Name
G86S
R600 XT
(215RGMDKA13FG)
GPU Variant
-
TeraScale
Architecture
Tesla
TSMC
Foundry
TSMC
80 nm
Process Size
80 nm
0.72 billion
Transistors
0.21 billion
420 mm²
Die Size
127 mm²
Graphics Features
10.0 (10_0)
DirectX
11.1 (10_0)
3.3 (full)
4.0 (partial)
OpenGL
3.3
N/A
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
1.1
4.0
Shader Model
4.0
