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Written by Olin Coles   
Tuesday, 28 April 2009
Table of Contents: Page Index
ATI Radeon HD 4770 RV740 DDR5 Video Card
Radeon HD 4770 Features
RV740 GPU Specifications
Radeon 4770 Closer Look
Video Card Testing Methodology
3DMark06 Benchmarks
COD 4 Fraps Benchmarks
Crysis Benchmark Results
Devil May Cry 4 Benchmark
World in Conflict Benchmarks
VGA Power Consumption
Radeon HD 4770 Temperatures
Radeon 4000-Series Final Thoughts
Radeon HD 4770 Conclusion

Crysis Benchmark Results

Crysis uses a new graphics engine: the CryENGINE2, which is the successor to Far Cry's CryENGINE. CryENGINE2 is among the first engines to use the Direct3D 10 (DirectX10) framework of Windows Vista, but can also run using DirectX9, both on Vista and Windows XP.

Roy Taylor, Vice President of Content Relations at NVIDIA, has spoken on the subject of the engine's complexity, stating that Crysis has over a million lines of code, 1GB of texture data, and 85,000 shaders. To get the most out of modern multicore processor architectures, CPU intensive subsystems of CryENGINE 2 such as physics, networking and sound, have been re-written to support multi-threading.

Crysis offers an in-game benchmark tool, which is similar to World in Conflict. This short test does place some high amounts of stress on a graphics card, since there are so many landscape features rendered. For benchmarking purposes, Crysis can mean trouble as it places a high demand on both GPU and CPU resources. Benchmark Reviews uses the Crysis Benchmark Tool by Mad Boris to test frame rates in batches, which allows the results of many tests to be averaged.

The very first thing we discovered during our 1680x1050 resolution tests was how well NVIDIA products performed compared to the Radeon product line. Test results like these begin to raise the question of how unbiased games like Crysis are when they proudly proclaim "NVIDIA: The way it was meant to be played". I don't consider this to be coincidence, but at the same time it's probably also not coincidence that Crysis demands more GPU power than any other product, which was perfect back at a time when AMD/ATI couldn't build a decent VGA product to save their lives (literally).

Analyzing the chart below illustrates two distinct trends. The first is that the Radeon HD4770 and HD4850 perform the same, and the 4870 is virtually identical in terms of Crysis gaming performance to the GeForce GTX 260. With no anti-aliasing added to Crysis for this test, nearly all video cards rendered a playable frame rate. Our Island time-demo mixes a some beach and water views, so it's going to be on the high side of frame rates when compared to actual game play. The results shown in the chart below illustrate (more distinctly) how well these products scale with anti-aliasing disabled.

Crysis_HQ_Benchmark_No-AA.jpg

Although the HD4770 has matched or closely trailed the HD4850 in most tests up to this point, the 512MB of GDDR5 operates on a thin 128-bit memory bus and can lead to bottlenecked data at some points. This became evident in our higher-demand tests, and for these reasons Benchmark Reviews excluded 4x AA tests like we normally provide in our video card reviews. We have also omitted our Far Cry 2 results (which are recorded at 8x AA) because the results were often too low to report or tests failed to complete.

Product Series NVIDIA GeForce 8800 GT Reference Design ATI Radeon HD 4770 Reference Design Sapphire Radeon HD 4850 102-B50102-00-AT NVIDIA GeForce GTX 260216 Reference Design Sapphire Radeon HD 4870 102-B50701-10-AT Sapphire Radeon HD 4890 Reference Design ASUS GeForce GTX 285 ENGTX285 TOP
Stream Processors 112 640 800 216 800 800 240
Core Clock (MHz) 600 750 625 576 750 850 670
Shader Clock (MHz) 1457 N/A N/A 1242 N/A N/A 1550
Memory Clock (MHz) 950 850 993 999 900 975 1300
Memory Amount 512 MB GDDR3

512 MB GDDR5

512 MB GDDR3 896 MB GDDR3

512 MB GDDR5

896 MB GDDR3 1024 MB GDDR3
Memory Interface 256-bit 128-bit 256-bit 448-bit 256-bit 256-bit 512-bit

In our next section, Benchmark Reviews tests with Devil May Cry 4 Benchmark. Read on to see how a blended high-demand GPU test with low video frame buffer demand will impact our test products.



 

Comments 

 
# Video card in minicomputerJaap J. van Veen 2011-08-31 01:49
I own a Shuttle XPC from 2004. It has an FN41 motherboard with an Vidia GeForce MX Integrated GPU (32MB). I had to buy a new screen which has 1920x1080 pixels. Now my internal graphics card is running short of capacity (flickering). I bought an AGP8x Videocard but the size of the computer does not allow to install the card (cooling ribs too high, MSI NX6200AX-TD512H). I have also a half PCE slot empty. The computerpower is 250Watt. Please advise for which Videocard I have to look for.

Grsts
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# PaulSubir Paul 2012-02-17 02:27
Now using X6

Mother board Asus M4A88td-m VEO

which Graphic card is best for me AMD Fraphic card
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# paulSubir Paul 2012-02-17 02:31
Mother board Asus M4A88td-m VEO

which Graphic card is best for me AMD Fraphic card
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