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GPU Comparison
AMD Radeon HD 6870 X2 vs ATI Radeon X800 GT AGP
AMD Radeon HD 6870 X2 vs ATI Radeon X800 GT AGP
VS
AMD Radeon HD 6870 X2
ATI Radeon X800 GT AGP
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 256MB VRAM Radeon X800 GT AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6870 X2 's Advantages
Released 3 years and 8 months late
More VRAM (1024GB vs 256GB)
Larger VRAM bandwidth (134.4GB/s vs 31.55GB/s)
1120 additional rendering cores
ATI Radeon X800 GT AGP 's Advantages
Lower TDP (40W vs 300W)
Score
Radeon HD 6870 X2
VS
Radeon X800 GT AGP
Graphics Card
Jul 2011
Release Date
Nov 2007
Northern Islands
Generation
Radeon R400 AGP
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
AGP 8x
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1050 MHz
Memory Clock
493 MHz
Memory
1024MB
Memory Size
256MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
256bit
134.4GB/s
Bandwidth
31.55GB/s
Render Config
-
SM Count
-
14
Compute Units
-
1120
Shading Units
-
56
TMUs
8
32
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
-
Theoretical Performance
28.80 GPixel/s
Pixel Rate
3.784 GPixel/s
50.40 GTexel/s
Texture Rate
3.784 GTexel/s
-
FP16 (half)
-
2.016 TFLOPS
FP32 (float)
-
-
FP64 (double)
-
Graphics Processor
Barts
GPU Name
R420
Barts XT (215-0798000)
GPU Variant
R420 GT (215RAACGA12F)
TeraScale 2
Architecture
R400
TSMC
Foundry
TSMC
40 nm
Process Size
130 nm
1.7 billion
Transistors
0.16 billion
255 mm²
Die Size
281 mm²
Board Design
300W
TDP
40W
700 W
Suggested PSU
200 W
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
Outputs
1x DVI 1x VGA 1x S-Video
-
Power Connectors
1x Molex
Graphics Features
11.2 (11_0)
DirectX
9.0b (9_2)
4.4
OpenGL
2.1
1.2
OpenCL
N/A
N/A
Vulkan
N/A
-
CUDA
-
5.0
Shader Model
-
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