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GPU Comparison
AMD Radeon HD 6790 vs NVIDIA T400
AMD Radeon HD 6790 vs NVIDIA T400
VS
AMD Radeon HD 6790
NVIDIA T400
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6790 and 2GB VRAM T400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6790 's Advantages
Larger VRAM bandwidth (134.4GB/s vs 80.00GB/s)
416 additional rendering cores
NVIDIA T400 's Advantages
Released 10 years and 1 months late
Boost Clock1425MHz
More VRAM (2GB vs 1GB)
Lower TDP (30W vs 150W)
Score
Benchmark
FP32 (float)
Radeon HD 6790
+22%
1.344 TFLOPS
T400
1.094 TFLOPS
Radeon HD 6790
VS
T400
Graphics Card
Apr 2011
Release Date
May 2021
Northern Islands
Generation
Quadro
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
420 MHz
-
Boost Clock
1425 MHz
1050 MHz
Memory Clock
1250 MHz
Memory
1024MB
Memory Size
2GB
GDDR5
Memory Type
GDDR6
256bit
Memory Bus
64bit
134.4GB/s
Bandwidth
80.00GB/s
Render Config
-
SM Count
6
10
Compute Units
-
800
Shading Units
384
40
TMUs
24
16
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
64 KB (per SM)
512 KB
L2 Cache
1024 KB
Theoretical Performance
13.44 GPixel/s
Pixel Rate
22.80 GPixel/s
33.60 GTexel/s
Texture Rate
34.20 GTexel/s
-
FP16 (half)
2.189 TFLOPS
1344 GFLOPS
FP32 (float)
1094 GFLOPS
-
FP64 (double)
34.20 GFLOPS
Graphics Processor
Barts
GPU Name
TU117
Barts LE (215-0798002)
GPU Variant
-
TeraScale 2
Architecture
Turing
TSMC
Foundry
TSMC
40 nm
Process Size
12 nm
1.7 billion
Transistors
4.7 billion
255 mm²
Die Size
200 mm²
Board Design
150W
TDP
30W
450 W
Suggested PSU
200 W
2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1
Outputs
3x mini-DisplayPort 1.4a
2x 6-pin
Power Connectors
None
Graphics Features
11.2 (11_0)
DirectX
12 (12_1)
4.4
OpenGL
4.6
1.2
OpenCL
3.0
N/A
Vulkan
1.3
-
CUDA
7.5
5.0
Shader Model
6.6
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9
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