AMD Radeon HD 6990 vs NVIDIA GeForce RTX 3080 Ti Max Q
GPU Specs Compare
Graphics Card
Release Date
Mar 2011
Jan 2022
Generation
Northern Islands
GeForce 30 Mobile
Type
Desktop
Mobile
Bus Interface
PCIe 2.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1250 MHz
1500 MHz
Base Clock
-
585 MHz
Boost Clock
-
1125 MHz
Memory
Memory Size
2GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
256bit
Bandwidth
160.0GB/s
384.0GB/s
Render Config
Compute Units
24
-
Shading Units
1536
7424
TMUs
96
232
ROPs
32
96
L1 Cache
8 KB (per CU)
128 KB (per SM)
L2 Cache
512 KB
4 MB
SM Count
-
58
Tensor Cores
-
232
RT Cores
-
58
Theoretical Performance
Pixel Rate
26.56 GPixel/s
108.0 GPixel/s
Texture Rate
79.68 GTexel/s
261.0 GTexel/s
FP32 (float)
2.550 TFLOPS
16.70 TFLOPS
FP64 (double)
637.4 GFLOPS
261.0 GFLOPS
FP16 (half)
-
16.70 TFLOPS
Graphics Processor
GPU Name
Antilles
GA103S
GPU Variant
Antilles XT(215-0807027)
GN20-E8-A1
Architecture
TeraScale 3
Ampere
Foundry
TSMC
Samsung
Process Size
40 nm
8 nm
Transistors
2.64 billion
Unknown
Die Size
389 mm²
496 mm²
Board Design
TDP
375W
80W
Suggested PSU
750 W
-
Outputs
1x DVI4x mini-DisplayPort 1.2
No outputs
Power Connectors
2x 8-pin
None
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
6.5
CUDA
-
8.6