GPUBoss Review Our evaluation of 7770 vs GTS 450

Gaming

Real world tests using the latest 3D games

Civilization 5

Benchmarks

Synthetic tests to measure overall performance

Passmark and 3DMark Vantage Texture Fill

Compute Performance

General computing tests executed on the GPU

SmallLuxGPU 2.0d4, Civilization 5 Texture Decomposition (2012) and 1 more

Noise and Power

How loud and hot does the card run idle and under load

TDP, Idle Noise Level, Load Noise Level, Idle Power Consumption and 1 more

No winner declared

Too close to call

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VS

Differences What are the advantages of each

Front view of Radeon HD 7770

Reasons to consider the
AMD Radeon HD 7770

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Significantly higher clock speed 1,000 MHz vs 783 MHz Around 30% higher clock speed
Better 3DMark vantage texture fill score 36.8 vs 21.9 Around 70% better 3DMark vantage texture fill score
Slightly better passmark score 2,155 vs 1,539 More than 40% better passmark score
Higher effective memory clock speed 4,500 MHz vs 3,608 MHz Around 25% higher effective memory clock speed
Better floating-point performance 1,280 GFLOPS vs 601.3 GFLOPS Around 2.2x better floating-point performance
Higher pixel rate 16 GPixel/s vs 6.26 GPixel/s More than 2.5x higher pixel rate
More shading units 640 vs 192 448 more shading units
Slightly higher texture rate 40 GTexel/s vs 25.1 GTexel/s Around 60% higher texture rate
Better SmallLuxGPU 2.0d4 score 9,600 vs 3,100 More than 3x better SmallLuxGPU 2.0d4 score
More energy-efficient idle power consumption 106W vs 111W Around 5% more energy-efficient idle power consumption
Slightly more energy-efficient load power consumption 242W vs 261W More than 5% more energy-efficient load power consumption
Better civilization 5 texture decomposition (2012) score 138.1 vs 96.4 Around 45% better civilization 5 texture decomposition (2012) score
Higher memory clock speed 1,125 MHz vs 902 MHz Around 25% higher memory clock speed
Higher civilization 5 framerate 55.6 fps vs 34.4 fps More than 60% higher civilization 5 framerate
Better passmark direct compute score 1,375 vs 709 Around 95% better passmark direct compute score
Slightly lower TDP 80W vs 106W Around 25% lower TDP
Front view of GeForce GTS 450

Reasons to consider the
Nvidia GeForce GTS 450

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Quieter load noise level 39.9 dB vs 41.4 dB Around 5% quieter load noise level

Benchmarks Real world tests of Radeon HD 7770 vs GeForce GTS 450

Passmark Industry standard benchmark for overall graphics card performance

3DMark Vantage (Texture Fill) Industry standard benchmark that tests DirectX performance

Civilization 5 1680x1050 - Maximum quality + 4xMSAA

Radeon HD 7770
55.6 fps
GeForce GTS 450
34.4 fps
A couple of judicious choices about where to reduce quality should provide a nice experience with almost any new game.
Radeon HD 7770 | by Jason-Cross (Apr, 2012)

SmallLux GPU 2.0d4 Measures compute performance using OpenCL to do 3D rendering

Civilization 5 Texture Decomp (2012) Using the newest graphics cards Civ V can speed screen transitions by reducing texture sizes

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

Reviews Word on the street

Radeon HD 7770  vs GeForce GTS 450 

8.7
9.0
Temperatures are very low, together with the super low fan noise this makes an excellent combination.
GeForce GTS 450

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