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GPU Comparison
ATI Radeon HD 3850 vs AMD Radeon R9 390X
ATI Radeon HD 3850 vs AMD Radeon R9 390X
VS
ATI Radeon HD 3850
AMD Radeon R9 390X
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3850 and 8GB VRAM Radeon R9 390X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 3850 's Advantages
Lower TDP (75W vs 275W)
AMD Radeon R9 390X 's Advantages
Released 7 years and 7 months late
Larger VRAM bandwidth (384.0GB/s vs 53.12GB/s)
2496 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 3850
0.428 TFLOPS
Radeon R9 390X
+1281%
5.914 TFLOPS
Radeon HD 3850
VS
Radeon R9 390X
Graphics Card
Nov 2007
Release Date
Jun 2015
Radeon R600
Generation
Pirate Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
830 MHz
Memory Clock
1500 MHz
Memory
512MB
Memory Size
8GB
GDDR3
Memory Type
GDDR5
256bit
Memory Bus
512bit
53.12GB/s
Bandwidth
384.0GB/s
Render Config
-
SM Count
-
4
Compute Units
44
320
Shading Units
2816
16
TMUs
176
16
ROPs
64
-
Tensor Cores
-
-
RT Cores
-
-
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
1024 KB
Theoretical Performance
10.69 GPixel/s
Pixel Rate
67.20 GPixel/s
10.69 GTexel/s
Texture Rate
184.8 GTexel/s
-
FP16 (half)
-
427.5 GFLOPS
FP32 (float)
5.914 TFLOPS
85.50 GFLOPS
FP64 (double)
739.2 GFLOPS
Graphics Processor
RV670
GPU Name
Grenada
RV670 PRO (215-0708003)
GPU Variant
Grenada XT (215-0880004)
TeraScale
Architecture
GCN 2.0
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
0.666 billion
Transistors
6.2 billion
192 mm²
Die Size
438 mm²
Board Design
75W
TDP
275W
250 W
Suggested PSU
600 W
2x DVI 1x S-Video
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
1x 6-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Features
10.1 (10_1)
DirectX
12 (12_0)
3.3 (full) 4.0 (partial)
OpenGL
4.6
N/A
OpenCL
2.0
N/A
Vulkan
1.2
-
CUDA
-
4.1
Shader Model
6.3
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