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GPU Comparison
NVIDIA RTX A4000H vs AMD Radeon HD 6990
NVIDIA RTX A4000H vs AMD Radeon HD 6990
VS
NVIDIA RTX A4000H
AMD Radeon HD 6990
We compared two Desktop platform GPUs: 16GB VRAM RTX A4000H and 2GB VRAM Radeon HD 6990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA RTX A4000H 's Advantages
Released 10 years and 1 months late
Boost Clock1560MHz
More VRAM (16GB vs 2GB)
Larger VRAM bandwidth (448.0GB/s vs 160.0GB/s)
4608 additional rendering cores
Lower TDP (140W vs 375W)
Score
Benchmark
FP32 (float)
RTX A4000H
+651%
19.17 TFLOPS
Radeon HD 6990
2.55 TFLOPS
RTX A4000H
VS
Radeon HD 6990
Graphics Card
Apr 2021
Release Date
Mar 2011
Quadro Ampere
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
735 MHz
Base Clock
-
1560 MHz
Boost Clock
-
1750 MHz
Memory Clock
1250 MHz
Memory
16GB
Memory Size
2GB
GDDR6
Memory Type
GDDR5
256bit
Memory Bus
256bit
448.0GB/s
Bandwidth
160.0GB/s
Render Config
48
SM Count
-
-
Compute Units
24
6144
Shading Units
1536
192
TMUs
96
96
ROPs
32
192
Tensor Cores
-
48
RT Cores
-
128 KB (per SM)
L1 Cache
8 KB (per CU)
4 MB
L2 Cache
512 KB
Theoretical Performance
149.8 GPixel/s
Pixel Rate
26.56 GPixel/s
299.5 GTexel/s
Texture Rate
79.68 GTexel/s
19.17 TFLOPS
FP16 (half)
-
19.17 TFLOPS
FP32 (float)
2.550 TFLOPS
299.5 GFLOPS
FP64 (double)
637.4 GFLOPS
Graphics Processor
GA104
GPU Name
Antilles
GA104-???-A1
GPU Variant
Antilles XT (215-0807027)
Ampere
Architecture
TeraScale 3
Samsung
Foundry
TSMC
8 nm
Process Size
40 nm
17.4 billion
Transistors
2.64 billion
392 mm²
Die Size
389 mm²
Board Design
140W
TDP
375W
300 W
Suggested PSU
750 W
4x DisplayPort 1.4a
Outputs
1x DVI 4x mini-DisplayPort 1.2
1x 6-pin
Power Connectors
2x 8-pin
Graphics Features
12 Ultimate (12_2)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
3.0
OpenCL
1.2
1.3
Vulkan
N/A
8.6
CUDA
-
6.7
Shader Model
5.0
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