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GPU Comparison
NVIDIA GeForce RTX 3090 vs ATI Radeon HD 3870 Mac Edition
NVIDIA GeForce RTX 3090 vs ATI Radeon HD 3870 Mac Edition
VS
NVIDIA GeForce RTX 3090
ATI Radeon HD 3870 Mac Edition
We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 3090 and 512MB VRAM Radeon HD 3870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce RTX 3090 's Advantages
Released 12 years and 3 months late
Boost Clock1695MHz
Larger VRAM bandwidth (936.2GB/s vs 72.06GB/s)
10176 additional rendering cores
ATI Radeon HD 3870 Mac Edition 's Advantages
Lower TDP (106W vs 350W)
Score
Benchmark
FP32 (float)
GeForce RTX 3090
+7058%
35.58 TFLOPS
Radeon HD 3870 Mac Edition
0.497 TFLOPS
GeForce RTX 3090
VS
Radeon HD 3870 Mac Edition
Graphics Card
Sep 2020
Release Date
Jun 2008
GeForce 30
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1395 MHz
Base Clock
-
1695 MHz
Boost Clock
-
1219 MHz
Memory Clock
1126 MHz
Memory
24GB
Memory Size
512MB
GDDR6X
Memory Type
GDDR4
384bit
Memory Bus
256bit
936.2GB/s
Bandwidth
72.06GB/s
Render Config
82
SM Count
-
-
Compute Units
4
10496
Shading Units
320
328
TMUs
16
112
ROPs
16
328
Tensor Cores
-
82
RT Cores
-
128 KB (per SM)
L1 Cache
-
6 MB
L2 Cache
256 KB
Theoretical Performance
189.8 GPixel/s
Pixel Rate
12.43 GPixel/s
556.0 GTexel/s
Texture Rate
12.43 GTexel/s
35.58 TFLOPS
FP16 (half)
-
35.58 TFLOPS
FP32 (float)
497.3 GFLOPS
556.0 GFLOPS
FP64 (double)
99.46 GFLOPS
Graphics Processor
GA102
GPU Name
RV670
GA102-300-A1
GPU Variant
RV670 XT (215-0708005)
Ampere
Architecture
TeraScale
Samsung
Foundry
TSMC
8 nm
Process Size
55 nm
28.3 billion
Transistors
0.666 billion
628 mm²
Die Size
192 mm²
Board Design
350W
TDP
106W
750 W
Suggested PSU
300 W
1x HDMI 2.1 3x DisplayPort 1.4a
Outputs
2x DVI 1x S-Video
1x 12-pin
Power Connectors
1x 6-pin
Graphics Features
12 Ultimate (12_2)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3 (full) 4.0 (partial)
3.0
OpenCL
N/A
1.3
Vulkan
N/A
8.6
CUDA
-
6.6
Shader Model
4.1
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