Radeon R9 270 1024SP vs GeForce 8400 GS PCI
We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270 1024SP and 512MB VRAM GeForce 8400 GS PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon R9 270 1024SP 's Advantages
Released 7 years and 3 months late
Boost Clock925MHz
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (153.6GB/s vs 5.328GB/s)
1016 additional rendering cores
GeForce 8400 GS PCI 's Advantages
Lower TDP (25W vs 150W)
Score
Benchmark
FP32 (float)
Radeon R9 270 1024SP
+8509%
1894
GeForce 8400 GS PCI
22
Graphics Card
Mar 2015
Release Date
Dec 2007
Volcanic Islands
Generation
GeForce 8
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCI
Clock Speeds
900 MHz
Base Clock
-
925 MHz
Boost Clock
-
1200 MHz
Memory Clock
333 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
DDR2
256bit
Memory Bus
64bit
153.6GB/s
Bandwidth
5.328GB/s
Render Config
16
Compute Units
-
-
SM Count
1
1024
Shading Units
8
64
TMUs
4
32
ROPs
4
16 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
16 KB
Theoretical Performance
29.60 GPixel/s
Pixel Rate
2.268 GPixel/s
59.20 GTexel/s
Texture Rate
2.268 GTexel/s
1.894 TFLOPS
FP32 (float)
22.40 GFLOPS
118.4 GFLOPS
FP64 (double)
-
Board Design
150W
TDP
25W
450 W
Suggested PSU
200 W
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
Outputs
1x S-Video
1x DMS-59
1x 6-pin
Power Connectors
None
Graphics Processor
Pitcairn
GPU Name
G98
Pitcairn PRO
(215-0828062)
GPU Variant
G98-400-U2
GCN 1.0
Architecture
Tesla
TSMC
Foundry
TSMC
28 nm
Process Size
65 nm
2.8 billion
Transistors
0.21 billion
212 mm²
Die Size
86 mm²
Graphics Features
12 (11_1)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
1.2
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
1.1
5.1
Shader Model
4.0