GeForce 6800 XT vs Radeon HD 4870
We compared two Desktop platform GPUs: 256MB VRAM GeForce 6800 XT and 512MB VRAM Radeon HD 4870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon HD 4870 Advantages
Released 2 years and 9 months late
More VRAM (512GB vs 256GB)
Larger VRAM bandwidth (115.2GB/s vs 38.40GB/s)
800 additional rendering cores
Score
Graphics Card
Sep 2005
Release Date
Jun 2008
GeForce 6 AGP
Generation
Radeon R700
Desktop
Type
Desktop
AGP 8x
Bus Interface
PCIe 2.0 x16
Clock Speeds
600 MHz
Memory Clock
900 MHz
Memory
256MB
Memory Size
512MB
GDDR3
Memory Type
GDDR5
256bit
Memory Bus
256bit
38.40GB/s
Bandwidth
115.2GB/s
Render Config
-
Compute Units
10
-
Shading Units
800
12
TMUs
40
8
ROPs
16
-
L1 Cache
16 KB (per CU)
-
L2 Cache
256 KB
Theoretical Performance
3.600 GPixel/s
Pixel Rate
12.00 GPixel/s
5.400 GTexel/s
Texture Rate
30.00 GTexel/s
-
FP32 (float)
1200 GFLOPS
-
FP64 (double)
240.0 GFLOPS
Board Design
Unknown
TDP
150W
200 W
Suggested PSU
450 W
1x DVI
1x VGA
1x S-Video
1x VGA
1x S-Video
Outputs
2x DVI
1x S-Video
1x S-Video
1x Molex
Power Connectors
2x 6-pin
Graphics Processor
NV42
GPU Name
RV770
6800 XT
GPU Variant
RV770 XT
(215-0669049)
(215-0669049)
Curie
Architecture
TeraScale
TSMC
Foundry
TSMC
110 nm
Process Size
55 nm
0.202 billion
Transistors
0.956 billion
222 mm²
Die Size
256 mm²
Graphics Features
9.0c (9_3)
DirectX
10.1 (10_1)
2.0 (full)
2.1 (partial)
2.1 (partial)
OpenGL
3.3
N/A
OpenCL
1.1
N/A
Vulkan
N/A
3.0
Shader Model
4.1