AMD Radeon HD 6450A vs NVIDIA GeForce 7900 GT

Table of Contents

Graphics Processor

GPU model Caicos G71
Architecture TeraScale 2 Curie
Foundry TSMC TSMC
Manufacturing process 40 nm 90 nm
Number of transistors 370 million 278 million
Die size 67 mm² 196 mm²
GPU variant G71-GT-N-A2

Mobile graphics

Release date Apr 7th, 2011
Generation All-In-One (HD 6000)
Production End-of-life
Interface MXM-A (3.0)

Clocks

GPU clock 625 MHz 450 MHz
Memory clock 533 MHz 1066 Mbps effective 660 MHz 1320 Mbps effective

Memory Configuration

Memory size 512 MB 256 MB
Memory type DDR3 GDDR3
Memory bus width 64 bit 256 bit
Bandwidth 8.528 GB/s 42.24 GB/s

Render Configuration

Shading units 160
TMUs 8 24
ROPs 4 16
Compute units 2
Cache L1 8 KB (per CU)
Cache L2 128 KB
Pixel shaders 24
Vertex shaders 8

Performance

Pixel rate 2.500 GPixel/s 7.200 GPixel/s
Texture rate 5.000 GTexel/s 10.80 GTexel/s
FP32 (float) performance 200.0 GFLOPS
Vertex rate 900.0 MVertices/s

Dimensions & Outputs

Slot width MXM Module Single-slot
TDP 25 W 48 W
Outputs No outputs 2x DVI1x S-Video
Suggested PSU 200 W
Power connectors 1x 6-pin
Board number P455

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

Graphics Card

Release date Mar 9th, 2006
Generation GeForce 7 PCIe
Production End-of-life
Interface PCIe 1.0 x16
Reviews 145 in our database
Predecessor GeForce 6 PCIe
Successor GeForce 8

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