AMD Radeon HD 6450 vs NVIDIA GeForce 6800 XT

Table of Contents

Graphics Processor

GPU model Caicos NV40
GPU variant Caicos PRO
Architecture TeraScale 2 Curie
Foundry TSMC TSMC
Manufacturing process 40 nm 130 nm
Number of transistors 370 million 222 million
Die size 67 mm² 287 mm²

Graphics Card

Release date Apr 7th, 2011 Sep 30th, 2005
Generation Northern Islands GeForce 6 AGP
Production End-of-life End-of-life
Launch price 55 USD
Interface PCIe 2.0 x16 AGP 8x
Reviews 14 in our database 115 in our database
Predecessor Evergreen GeForce FX
Successor Southern Islands GeForce 7 AGP

Clocks

GPU clock 625 MHz 300 MHz
Memory clock 800 MHz 3.2 Gbps effective 350 MHz 700 Mbps effective

Memory Configuration

Memory size 512 MB 256 MB
Memory type GDDR5 DDR
Memory bus width 64 bit 256 bit
Bandwidth 25.60 GB/s 22.40 GB/s

Render Configuration

Shading units 160
TMUs 8 8
ROPs 4 8
Compute units 2
Cache L1 8 KB (per CU)
Cache L2 128 KB
Pixel shaders 8
Vertex shaders 4

Performance

Pixel rate 2.500 GPixel/s 2.400 GPixel/s
Texture rate 5.000 GTexel/s 2.400 GTexel/s
FP32 (float) performance 200.0 GFLOPS
Vertex rate 300.0 MVertices/s

Dimensions & Outputs

Slot width Single-slot Single-slot
Length 168 mm 6.6 inches
TDP 18 W unknown
Suggested PSU 200 W 200 W
Outputs 1x DVI1x HDMI1x VGA 1x DVI1x VGA1x S-Video
Power connectors None 1x Molex
Board number C264 P212

API Support & Features

DirectX 11.2 (11_0) 9.0c (9_3)
OpenGL 4.4 2.1
OpenCL 1.2
Vulkan
Shader model 5.0 3.0

Other Features

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