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ASUS HD 4870 X2 TOP
- Graphics Processor
- R700 x2
- Cores
- 800 x2
- TMUs
- 40 x2
- ROPs
- 16 x2
- Memory Size
- 1024 MB x2
- Memory Type
- GDDR5
- Bus Width
- 256 bit x2
Graphics Processor
- GPU Name
-
R700
- GPU Variant
-
R700 XT
(215-0669045)
- Architecture
- TeraScale
- Foundry
- TSMC
- Process Size
- 55 nm
- Transistors
- 956 million
- Density
- 3.7M / mm²
- Die Size
- 256 mm²
Clock Speeds
- GPU Clock
750 MHz
790 MHz (+5%)
- Memory Clock
-
900 MHz
915 MHz (+2%)
3.6 Gbps effective
3.7 Gbps effective
Memory
- Memory Size
-
1024 MB
- Memory Type
- GDDR5
- Memory Bus
-
256 bit
- Bandwidth
-
115.2 GB/s
117.1 GB/s
Render Config
- Shading Units
-
800
- TMUs
-
40
- ROPs
-
16
- Compute Units
-
10
- L1 Cache
-
16 KB (per CU)
- L2 Cache
-
256 KB
Theoretical Performance
- Pixel Rate
-
12.00 GPixel/s
12.64 GPixel/s
- Texture Rate
-
30.00 GTexel/s
31.60 GTexel/s
- FP32 (float)
-
1,200 GFLOPS
1,264 GFLOPS
- FP64 (double)
-
240.0 GFLOPS
252.8 GFLOPS (1:5)
Board Design
- Slot Width
- Dual-slot
- Length
- 267 mm
10.5 inches
- Width
- 111 mm
4.4 inches
- Height
- 38 mm
1.5 inches
- TDP
- 286 W
- Suggested PSU
- 600 W
- Outputs
- 2x DVI
1x S-Video
- Power Connectors
- 1x 6-pin + 1x 8-pin
- Board Number
- 109-B50937-00
Graphics Features
- DirectX
- 10.1 (10_1)
- OpenGL
-
3.3
- OpenCL
- 1.1
- Vulkan
- N/A
- Shader Model
- 4.1
Card Notes
This is a dual GPU card that features two RV770XT chips and a PCI-E lane arbiter chip made by PLX. The card features a total of 2 GB GDDR5 memory. |
R700 GPU Notes
Codename: Wekiva
Graphics/Compute: GFX3
Display Core Engine: 3.1
Unified Video Decoder: 2.0
Latest Drivers:
Windows XP / 8:
Catalyst Software Suite 13.1 / 13.4 Beta
Windows Vista / 7:
Catalyst Software Suite 13.9 |
Other retail boards
based on this design (7)
Name |
GPU Clock |
Memory Clock |
Other Changes |
ASUS HD 4870 X2 TOP
|
790 MHz |
915 MHz |
|
|
750 MHz |
950 MHz |
Triple-slot, 1x DVI 1x HDMI 1x DisplayPort 1x VGA |
|
790 MHz |
950 MHz |
Triple-slot, 1x DVI 1x HDMI 1x DisplayPort 1x VGA |
|
750 MHz |
900 MHz |
|
|
750 MHz |
900 MHz |
|
|
750 MHz |
900 MHz |
|
|
800 MHz |
1000 MHz |
Single-slot |