AMD Radeon HD 6870 X2 vs NVIDIA GeForce RTX 3090
GPU Specs Compare
Graphics Card
Release Date
Jul 2011
Sep 2020
Generation
Northern Islands
GeForce 30
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1050 MHz
1219 MHz
Base Clock
-
1395 MHz
Boost Clock
-
1695 MHz
Memory
Memory Size
1024MB
24GB
Memory Type
GDDR5
GDDR6X
Memory Bus
256bit
384bit
Bandwidth
134.4GB/s
936.2GB/s
Render Config
Compute Units
14
-
Shading Units
1120
10496
TMUs
56
328
ROPs
32
112
L1 Cache
8 KB (per CU)
128 KB (per SM)
L2 Cache
512 KB
6 MB
SM Count
-
82
Tensor Cores
-
328
RT Cores
-
82
Theoretical Performance
Pixel Rate
28.80 GPixel/s
189.8 GPixel/s
Texture Rate
50.40 GTexel/s
556.0 GTexel/s
FP32 (float)
2.016 TFLOPS
35.58 TFLOPS
FP16 (half)
-
35.58 TFLOPS
FP64 (double)
-
556.0 GFLOPS
Graphics Processor
GPU Name
Barts
GA102
GPU Variant
Barts XT(215-0798000)
GA102-300-A1
Architecture
TeraScale 2
Ampere
Foundry
TSMC
Samsung
Process Size
40 nm
8 nm
Transistors
1.7 billion
28.3 billion
Die Size
255 mm²
628 mm²
Board Design
TDP
300W
350W
Suggested PSU
700 W
750 W
Outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
-
1x 12-pin
Graphics Features
DirectX
11.2 (11_0)
12 Ultimate (12_2)
OpenGL
4.4
4.6
OpenCL
1.2
3.0
Vulkan
N/A
1.3
Shader Model
5.0
6.6
CUDA
-
8.6