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GPU Comparison
AMD Radeon R9 390X vs ATI Radeon HD 2900 PRO
AMD Radeon R9 390X vs ATI Radeon HD 2900 PRO
VS
AMD Radeon R9 390X
ATI Radeon HD 2900 PRO
We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390X and 512MB VRAM Radeon HD 2900 PRO to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 390X 's Advantages
Released 7 years and 6 months late
More VRAM (8GB vs 512GB)
Larger VRAM bandwidth (384.0GB/s vs 51.20GB/s)
2496 additional rendering cores
ATI Radeon HD 2900 PRO 's Advantages
Lower TDP (200W vs 275W)
Score
Benchmark
FP32 (float)
Radeon R9 390X
+1440%
5.914 TFLOPS
Radeon HD 2900 PRO
0.384 TFLOPS
Radeon R9 390X
VS
Radeon HD 2900 PRO
Graphics Card
Jun 2015
Release Date
Dec 2007
Pirate Islands
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
-
-
-
-
-
-
1500 MHz
Memory Clock
800 MHz
Memory
8GB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
512bit
Memory Bus
256bit
384.0GB/s
Bandwidth
51.20GB/s
Render Config
44
Compute Units
4
-
-
-
2816
Shading Units
320
176
TMUs
16
64
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
-
1024 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
67.20 GPixel/s
Pixel Rate
9.600 GPixel/s
184.8 GTexel/s
Texture Rate
9.600 GTexel/s
-
-
-
5.914 TFLOPS
FP32 (float)
384.0 GFLOPS
739.2 GFLOPS
FP64 (double)
-
Board Design
275W
TDP
200W
600 W
Suggested PSU
550 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x S-Video
1x 6-pin + 1x 8-pin
Power Connectors
1x 8-pin
Graphics Processor
Grenada
GPU Name
R600
Grenada XT (215-0880004)
GPU Variant
R600 PRO (215RGMDKA13FG)
GCN 2.0
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
80 nm
6.2 billion
Transistors
0.72 billion
438 mm²
Die Size
420 mm²
Graphics Features
12 (12_0)
DirectX
10.0 (10_0)
4.6
OpenGL
3.3 (full) 4.0 (partial)
2.0
OpenCL
N/A
1.2
Vulkan
N/A
-
-
-
6.3
Shader Model
4.0
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