Home GPU Comparison ATI Radeon HD 2900 XTX vs NVIDIA GeForce 6800 XT

ATI Radeon HD 2900 XTX vs NVIDIA GeForce 6800 XT

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XTX and 256MB VRAM GeForce 6800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 XTX 's Advantages
More VRAM (512GB vs 256GB)
Larger VRAM bandwidth (106.0GB/s vs 38.40GB/s)
320 additional rendering cores

Score

VS

Graphics Card

Unknown
Release Date
Sep 2005
Radeon R600
Generation
GeForce 6 AGP
Desktop
Type
Desktop
PCIe 1.0 x16
Bus Interface
AGP 8x

Clock Speeds

-
-
-
-
-
-
828 MHz
Memory Clock
600 MHz

Memory

512MB
Memory Size
256MB
GDDR3
Memory Type
GDDR3
512bit
Memory Bus
256bit
106.0GB/s
Bandwidth
38.40GB/s

Render Config

4
Compute Units
-
-
-
-
320
Shading Units
-
16
TMUs
12
16
ROPs
8
-
-
-
-
-
-
-
-
-
256 KB
L2 Cache
-
-
-
-

Theoretical Performance

11.89 GPixel/s
Pixel Rate
3.600 GPixel/s
11.89 GTexel/s
Texture Rate
5.400 GTexel/s
-
-
-
475.5 GFLOPS
FP32 (float)
-
-
-
-

Board Design

240W
TDP
Unknown
550 W
Suggested PSU
200 W
2x DVI 1x S-Video
Outputs
1x DVI 1x VGA 1x S-Video
2x 6-pin
Power Connectors
1x Molex

Graphics Processor

R600
GPU Name
NV42
R600 XTX A11 (215RGMDKA11FG)
GPU Variant
6800 XT
TeraScale
Architecture
Curie
TSMC
Foundry
TSMC
80 nm
Process Size
110 nm
0.72 billion
Transistors
0.202 billion
420 mm²
Die Size
222 mm²

Graphics Features

10.0 (10_0)
DirectX
9.0c (9_3)
3.3 (full) 4.0 (partial)
OpenGL
2.0 (full) 2.1 (partial)
N/A
OpenCL
N/A
N/A
Vulkan
N/A
-
-
-
4.0
Shader Model
3.0

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