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GPU Comparison
ATI Radeon HD 4870 X2 vs ATI Radeon X1550 PCI
ATI Radeon HD 4870 X2 vs ATI Radeon X1550 PCI
VS
ATI Radeon HD 4870 X2
ATI Radeon X1550 PCI
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 256MB VRAM Radeon X1550 PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 4870 X2 's Advantages
Released 1 years and 7 months late
More VRAM (1024GB vs 256GB)
Larger VRAM bandwidth (115.2GB/s vs 4.256GB/s)
800 additional rendering cores
ATI Radeon X1550 PCI 's Advantages
Lower TDP (27W vs 286W)
Score
Radeon HD 4870 X2
VS
Radeon X1550 PCI
Graphics Card
Aug 2008
Release Date
Jan 2007
Radeon R700
Generation
Radeon R500 PCIe
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
900 MHz
Memory Clock
266 MHz
Memory
1024MB
Memory Size
256MB
GDDR5
Memory Type
DDR2
256bit
Memory Bus
64bit
115.2GB/s
Bandwidth
4.256GB/s
Render Config
-
SM Count
-
10
Compute Units
-
800
Shading Units
-
40
TMUs
4
16
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
-
256 KB
L2 Cache
-
Theoretical Performance
12.00 GPixel/s
Pixel Rate
1.808 GPixel/s
30.00 GTexel/s
Texture Rate
1.808 GTexel/s
-
FP16 (half)
-
1200 GFLOPS
FP32 (float)
-
240.0 GFLOPS
FP64 (double)
-
Graphics Processor
R700
GPU Name
RV516
R700 XT (215-0669045)
GPU Variant
-
TeraScale
Architecture
R500
TSMC
Foundry
UMC
55 nm
Process Size
80 nm
0.956 billion
Transistors
0.107 billion
256 mm²
Die Size
100 mm²
Board Design
286W
TDP
27W
600 W
Suggested PSU
200 W
2x DVI 1x S-Video
Outputs
1x DVI 1x VGA 1x S-Video
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Features
10.1 (10_1)
DirectX
9.0c (9_3)
3.3
OpenGL
2.1
1.1
OpenCL
N/A
N/A
Vulkan
N/A
-
CUDA
-
4.1
Shader Model
3.0
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