Too Fast and Cool to be True?
Since time immemorial, man has had an insatiable appetite for power and speed. This can be easily appreciated when you look at modern day transport. From horse carriages of the days of yore, to cars, to maglev trains, to airplanes, the only limits that stand in man's way are the laws of physics. This lust for power and speed can be seen in computing as well, giving birth to faster processors, faster memory and of course faster graphics cards. As we've seen in our earlier review, the standard Radeon HD 4870 is already a very capable performer, providing more than enough graphics processing power for your average or even hardcore gamer. But when was man ever satisfied? Hence overclocking.
However, the inescapable fact is that with more power comes more heat. Therefore, graphics cards require well-designed coolers to ensure that the GPU doesn't become a campfire sitting on your motherboard. This relentless lust for power and speed has now led prominent ATI graphics card manufacturer, PowerColor, to give us this - the PowerColor PCS+ HD 4870 1GB GDDR5.
The PowerColor PCS+ HD 4870 is one of the earliest overclocked versions of the HD 4870 made available to gamers, and is packed in a compact box, which we find tasteful.
|
The PowerColor PCS+ HD 4870 is an overclocked variant of the standard Radeon HD 4870 which PowerColor claims to be not only faster than the reference, but also cooler. But before we delve into the details of the card, let us first take a look at how the card stacks up against the competition.
|
PowerColor PCS+ HD 4870 and Competitive Comparison Cards
Powercolor 4870
| Model |
PowerColor
PCS+ HD 4870 1GB |
Radeon
HD 4870 512MB |
Radeon
HD 4850 512MB |
NVIDIA
GTX 280 1GB |
NVIDIA
GTX 260 896MB |
| Core
Code |
RV770 |
RV770 |
RV770 |
GT200 |
GT200 |
| Transistor
Count |
956
million |
956
million |
956
million |
1400
million |
1400
million |
| Manufacturing
Process |
55nm |
55nm |
55nm |
65nm |
65nm |
| Core
Clock |
800MHz |
750MHz |
625MHz |
602MHz |
576MHz |
| Stream
Processors |
160
Processors (800 Stream processing units) |
160
Processors (800
Stream processing units) |
160
Processors (800
Stream processing units) |
240
Stream Processors |
192
Stream Processors |
| Stream
Processor Clock |
800MHz |
750MHz |
625MHz |
1296MHz |
1242MHz |
| Texture
Mapping Units (TMU) or Texture Filtering (TF)
units |
40 |
40 |
40 |
80 |
64 |
| Raster
Operator units (ROP) |
16 |
16 |
16 |
32 |
28 |
| Memory
Clock |
3700MHz
GDDR5 |
3600MHz
GDDR5 |
2000MHz
GDDR3 |
2214MHz
GDDR3 |
1998MHz
GDDR3 |
| DDR
Memory Bus Width |
256-bit |
256-bit |
256-bit |
512-bit |
448-bit |
| Memory
Bandwidth |
121.6GB/s |
115.2GB/s |
64GB/s |
141.7GB/s |
111.9GB/s |
| PCI
Express Interface |
PCIe
ver 2.0 x16 |
PCIe
ver 2.0 x16 |
PCIe
ver 2.0 x16 |
PCIe
ver 2.0 x16 |
PCIe
ver 2.0 x16 |
| Molex
Power Connectors |
2 x
6-pin |
2 x
6-pin |
6-pin |
6-pin,
8-pin |
2 x
6-pin |
| Multi
GPU Technology |
CrossFireX |
CrossFireX |
CrossFireX |
SLI |
SLI |
| DVI
Output Support |
2 x
Dual-Link |
2 x
Dual-Link |
2 x
Dual-Link |
2 x
Dual-Link |
2 x
Dual-Link |
| HDCP
Output Support |
Yes |
Yes |
Yes |
Yes |
Yes |
| Street
Price |
US$340 |
US$299 |
US$199 |
US$499 |
US$299 |