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GPU Comparison
AMD Radeon HD 6850 X2 vs ATI Radeon HD 3830
AMD Radeon HD 6850 X2 vs ATI Radeon HD 3830
VS
AMD Radeon HD 6850 X2
ATI Radeon HD 3830
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 and 256MB VRAM Radeon HD 3830 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6850 X2 's Advantages
Released 3 years and 5 months late
Larger VRAM bandwidth (134.4GB/s vs 26.50GB/s)
640 additional rendering cores
ATI Radeon HD 3830 's Advantages
Lower TDP (75W vs 254W)
Score
Benchmark
FP32 (float)
Radeon HD 6850 X2
+258%
1.536 TFLOPS
Radeon HD 3830
0.428 TFLOPS
Radeon HD 6850 X2
VS
Radeon HD 3830
Graphics Card
Sep 2011
Release Date
Apr 2008
Northern Islands
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1050 MHz
Memory Clock
828 MHz
Memory
2GB
Memory Size
256MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
128bit
134.4GB/s
Bandwidth
26.50GB/s
Render Config
-
SM Count
-
12
Compute Units
4
960
Shading Units
320
48
TMUs
16
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
128 KB
Theoretical Performance
25.60 GPixel/s
Pixel Rate
10.69 GPixel/s
38.40 GTexel/s
Texture Rate
10.69 GTexel/s
-
FP16 (half)
-
1.536 TFLOPS
FP32 (float)
427.5 GFLOPS
-
FP64 (double)
85.50 GFLOPS
Graphics Processor
Barts
GPU Name
RV670
Barts PRO (215-0798006)
GPU Variant
RV670 PRO (215-0708003)
TeraScale 2
Architecture
TeraScale
TSMC
Foundry
TSMC
40 nm
Process Size
55 nm
1.7 billion
Transistors
0.666 billion
255 mm²
Die Size
192 mm²
Board Design
254W
TDP
75W
600 W
Suggested PSU
250 W
2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1
Outputs
No outputs
2x 8-pin
Power Connectors
1x 6-pin
Graphics Features
11.2 (11_0)
DirectX
10.1 (10_1)
4.4
OpenGL
3.3 (full) 4.0 (partial)
1.2
OpenCL
N/A
N/A
Vulkan
N/A
-
CUDA
-
5.0
Shader Model
4.1
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