ATI to Nvidia: You're a Dinosaur
The Performance Story
Do ATI's new graphics cards deliver 75% of a GeForce GTX 280’s power for a fraction of the price? We went into the lab to find out.
The short answer is "yes". The Radeon 4870 runs nearly as fast as a GTX 280 in most benchmarks for about 60% of the cost. Running two 4870 boards together in Crossfire delivers performance that beats a single GTX 280 board for the same cash outlay. The performance you get from a single 4870 card is quite impressive, especially when you consider that it's half the price. When you look at the scores the Radeon 4870s chalked up in Crossfire mode, you may even be tempted to pony up for a pair of 4870s, but think before you leap.
Dual-card solutions are well and good in practice, but before you make the jump to a dual-GPU, you need to be aware of the pitfalls. First, adding a second card to your rig completely obviates the power and noise benefits the 4870 has over the GTX 200. Second, functionality that you may take for granted, like multiple monitor support, doesn't work with dual-card solutions from either ATI or Nvidia. Third, new games frequently require a driver update or even a patch before they'll properly take advantage of your second card. Multiple-cards are great for power users, but you need to be aware of the sacrifices entailed with these rigs, preferably before you whip out your credit card. We can't wholeheartedly recommend SLI and Crossfire as more than niche products until these problems are solved.
During the course of our testing, we also discovered that many of these new cards were CPU-bound on our testbeds in all but the most demanding games. That means that even adding a second (or a faster) videocard to your system shows very little performance improvement because the CPU can't handle its tasks fast enough to keep multiple GPUs occupied. We'll be updating our testbed before the next round of GPU reviews, however, if your current CPU is slower than an Intel Core2 Duo X6800--a 2.93GHz dual-core Conroe--then you probably won't see much benefit in games outside of Crysis if you upgrade to more than one graphics card, whether it's a GTX 280, a Radeon 4870, or even a Radeon 4850.
But, we digress. The short, short verdict is that ATI's new Radeon 4850 and Radeon 4870 deliver stunning performance at an extremely compelling price point. If you've been waiting to upgrade to a DirectX 10-compatible graphics card, now is the time. For less than the price of an Xbox 360, you can upgrade your GPU and get kick ass gaming performance on most modern PCs.
Radeon 4870 Benchmarks
| |
GeForce GTX 280 |
Radeon 4870 |
Radeon 4870 Crossfire |
| Crysis (fps) |
15.9 |
9.3 |
19.9 |
| World in Conflict (fps) |
32.0 |
28.0 |
34.0 |
| Company of Heroes (fps) |
32.0 |
39.6 |
44.6 |
| 3DMark'06 Game 1 (fps) |
46.0 |
34.0 |
47.1 |
| 3DMark'06 Game 2 (fps) |
45.5 |
36.7 |
49.5
|
| 3DMark Vantage Game 1 (fps) |
15.5 |
10.7
|
19.9 |
| 3DMark Vantage Game 2 (fps) |
11.9 |
9.0 |
17.4 |
Best scores are bolded. Allbenchmarks runat 1920x1200 with 4x AA enabled, unless otherwise specified.
Radeon 4850 Benchmarks
| |
GeForce GTX 280 |
Radeon 4850 |
Radeon 4850 Crossfire |
| Crysis (fps) |
15.9 |
8.1 |
19.2 |
| World in Conflict (fps) |
32.0 |
31.0 |
34.0 |
| Company of Heroes (fps) |
32.0 |
32.7 |
45.1 |
| 3DMark'06 Game 1 (fps) |
46.0 |
24.4 |
45.5 |
| 3DMark'06 Game 2 (fps) |
45.5 |
29.7 |
48.1
|
| 3DMark Vantage Game 1 (fps) |
15.5 |
8.1
|
13.1 |
| 3DMark Vantage Game 2 (fps) |
11.9 |
7.0 |
10.0 |
Best scores are bolded. Allbenchmarks runat 1920x1200 with 4x AA enabled, unless otherwise specified.