Radeon X800 GTO AGP vs Radeon HD 4855
We compared two Desktop platform GPUs: 256MB VRAM Radeon X800 GTO AGP and 512MB VRAM Radeon HD 4855 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon X800 GTO AGP 's Advantages
Lower TDP (49W vs 110W)
Radeon HD 4855 's Advantages
Released 2 years and 2 months late
More VRAM (512GB vs 256GB)
Larger VRAM bandwidth (115.2GB/s vs 31.36GB/s)
640 additional rendering cores
Score
Graphics Card
Nov 2007
Release Date
Jan 2010
Radeon R400 AGP
Generation
Radeon R700
Desktop
Type
Desktop
AGP 8x
Bus Interface
PCIe 2.0 x16
Clock Speeds
490 MHz
Memory Clock
900 MHz
Memory
256MB
Memory Size
512MB
GDDR3
Memory Type
GDDR5
256bit
Memory Bus
256bit
31.36GB/s
Bandwidth
115.2GB/s
Render Config
-
Compute Units
8
-
Shading Units
640
12
TMUs
32
12
ROPs
16
-
L1 Cache
16 KB (per CU)
-
L2 Cache
256 KB
Theoretical Performance
4.800 GPixel/s
Pixel Rate
9.200 GPixel/s
4.800 GTexel/s
Texture Rate
18.40 GTexel/s
-
FP32 (float)
736.0 GFLOPS
-
FP64 (double)
147.2 GFLOPS
Board Design
49W
TDP
110W
200 W
Suggested PSU
300 W
1x DVI
1x VGA
1x S-Video
Outputs
1x DVI
1x HDMI 1.3a
1x VGA
1x Molex
Power Connectors
1x 6-pin
Graphics Processor
R420
GPU Name
RV770
R420 GTO
GPU Variant
RV770 PRO
(215-0669065)
R400
Architecture
TeraScale
TSMC
Foundry
TSMC
130 nm
Process Size
55 nm
0.16 billion
Transistors
0.956 billion
281 mm²
Die Size
256 mm²
Graphics Features
9.0b (9_2)
DirectX
10.1 (10_1)
2.1
OpenGL
3.3
N/A
OpenCL
1.1
N/A
Vulkan
N/A
-
Shader Model
4.1
