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Differences What are the advantages of each

Front view of Radeon HD 6450A

Reasons to consider the
AMD Radeon HD 6450A

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Significantly lower TDP 25W vs 150W 6x lower TDP
Front view of GeForce GTS 250

Reasons to consider the
ZOTAC GeForce GTS 250

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Higher clock speed 750 MHz vs 625 MHz 20% higher clock speed
Higher memory bandwidth 73.6 GB/s vs 8.53 GB/s Around 8.8x higher memory bandwidth
Higher effective memory clock speed 2,300 MHz vs 1,066 MHz Around 2.2x higher effective memory clock speed
Higher texture rate 48 GTexel/s vs 5 GTexel/s More than 9.5x higher texture rate
More texture mapping units 64 vs 8 56 more texture mapping units
Significantly higher memory clock speed 1,150 MHz vs 533 MHz Around 2.2x higher memory clock speed
Higher pixel rate 12 GPixel/s vs 2.5 GPixel/s More than 4.8x higher pixel rate
More render output processors 16 vs 4 12 more render output processors
Wider memory bus 256 bit vs 64 bit 4x wider memory bus

Benchmarks Real world tests of Radeon HD 6450A vs GeForce GTS 250

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

PassMark Direct Compute Measures performance of general-purpose computing using Microsoft DirectCompute

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