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GPU Comparison
AMD Radeon Sky 500 vs ATI Radeon HD 2900 GT
AMD Radeon Sky 500 vs ATI Radeon HD 2900 GT
VS
AMD Radeon Sky 500
ATI Radeon HD 2900 GT
We compared two Desktop platform GPUs: 4GB VRAM Radeon Sky 500 and 256MB VRAM Radeon HD 2900 GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon Sky 500 's Advantages
Released 5 years and 4 months late
Larger VRAM bandwidth (153.6GB/s vs 51.20GB/s)
1040 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon Sky 500
+744%
2.432 TFLOPS
Radeon HD 2900 GT
0.288 TFLOPS
Radeon Sky 500
VS
Radeon HD 2900 GT
Graphics Card
Mar 2013
Release Date
Nov 2007
Radeon Sky
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1200 MHz
Memory Clock
800 MHz
Memory
4GB
Memory Size
256MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
256bit
153.6GB/s
Bandwidth
51.20GB/s
Render Config
-
SM Count
-
20
Compute Units
3
1280
Shading Units
240
80
TMUs
12
32
ROPs
12
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
128 KB
Theoretical Performance
30.40 GPixel/s
Pixel Rate
7.212 GPixel/s
76.00 GTexel/s
Texture Rate
7.212 GTexel/s
-
FP16 (half)
-
2.432 TFLOPS
FP32 (float)
288.5 GFLOPS
152.0 GFLOPS
FP64 (double)
-
Graphics Processor
Pitcairn
GPU Name
R600
Pitcairn XT GL (215-0828073)
GPU Variant
R600 GT (215RGFDKA13FG)
GCN 1.0
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
80 nm
2.8 billion
Transistors
0.72 billion
212 mm²
Die Size
420 mm²
Board Design
150W
TDP
150W
450 W
Suggested PSU
450 W
1x DisplayPort 1.2
Outputs
2x DVI 1x S-Video
1x 6-pin
Power Connectors
1x 8-pin
Graphics Features
12 (11_1)
DirectX
10.0 (10_0)
4.6
OpenGL
3.3 (full) 4.0 (partial)
1.2
OpenCL
N/A
1.2
Vulkan
N/A
-
CUDA
-
5.1
Shader Model
4.0
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4
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