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GPU Comparison
AMD Radeon HD 6790 vs AMD Radeon RX 550 640SP
AMD Radeon HD 6790 vs AMD Radeon RX 550 640SP
VS
AMD Radeon HD 6790
AMD Radeon RX 550 640SP
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6790 and 2GB VRAM Radeon RX 550 640SP 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 96.00GB/s)
160 additional rendering cores
AMD Radeon RX 550 640SP 's Advantages
Released 6 years and 6 months late
Boost Clock1071MHz
More VRAM (2GB vs 1GB)
Lower TDP (60W vs 150W)
Score
Benchmark
FP32 (float)
Radeon HD 6790
1.344 TFLOPS
Radeon RX 550 640SP
+2%
1.371 TFLOPS
Radeon HD 6790
VS
Radeon RX 550 640SP
Graphics Card
Apr 2011
Release Date
Oct 2017
Northern Islands
Generation
Polaris
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
1019 MHz
-
Boost Clock
1071 MHz
1050 MHz
Memory Clock
1500 MHz
Memory
1024MB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
134.4GB/s
Bandwidth
96.00GB/s
Render Config
-
SM Count
-
10
Compute Units
10
800
Shading Units
640
40
TMUs
40
16
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
1024 KB
Theoretical Performance
13.44 GPixel/s
Pixel Rate
17.14 GPixel/s
33.60 GTexel/s
Texture Rate
42.84 GTexel/s
-
FP16 (half)
1371 GFLOPS
1344 GFLOPS
FP32 (float)
1371 GFLOPS
-
FP64 (double)
85.68 GFLOPS
Graphics Processor
Barts
GPU Name
Baffin
Barts LE (215-0798002)
GPU Variant
Baffin LE
TeraScale 2
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
40 nm
Process Size
14 nm
1.7 billion
Transistors
3 billion
255 mm²
Die Size
123 mm²
Board Design
150W
TDP
60W
450 W
Suggested PSU
250 W
2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1
Outputs
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
2x 6-pin
Power Connectors
None
Graphics Features
11.2 (11_0)
DirectX
12 (12_0)
4.4
OpenGL
4.6
1.2
OpenCL
2.1
N/A
Vulkan
1.2
-
CUDA
-
5.0
Shader Model
6.4
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8
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