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GPU Comparison
AMD Radeon RX 580 2048SP vs AMD Radeon HD 6990
AMD Radeon RX 580 2048SP vs AMD Radeon HD 6990
VS
AMD Radeon RX 580 2048SP
AMD Radeon HD 6990
We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 580 2048SP and 2GB VRAM Radeon HD 6990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 580 2048SP 's Advantages
Released 7 years and 7 months late
Boost Clock1284MHz
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (224.0GB/s vs 160.0GB/s)
512 additional rendering cores
Lower TDP (150W vs 375W)
Score
Benchmark
FP32 (float)
Radeon RX 580 2048SP
+106%
5.259 TFLOPS
Radeon HD 6990
2.55 TFLOPS
Radeon RX 580 2048SP
VS
Radeon HD 6990
Graphics Card
Oct 2018
Release Date
Mar 2011
Polaris
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1168 MHz
Base Clock
-
1284 MHz
Boost Clock
-
1750 MHz
Memory Clock
1250 MHz
Memory
4GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
224.0GB/s
Bandwidth
160.0GB/s
Render Config
-
SM Count
-
32
Compute Units
24
2048
Shading Units
1536
128
TMUs
96
32
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
2 MB
L2 Cache
512 KB
Theoretical Performance
41.09 GPixel/s
Pixel Rate
26.56 GPixel/s
164.4 GTexel/s
Texture Rate
79.68 GTexel/s
5.259 TFLOPS
FP16 (half)
-
5.259 TFLOPS
FP32 (float)
2.550 TFLOPS
328.7 GFLOPS
FP64 (double)
637.4 GFLOPS
Graphics Processor
Polaris 20
GPU Name
Antilles
Polaris 20 XL (215-0910052)
GPU Variant
Antilles XT (215-0807027)
GCN 4.0
Architecture
TeraScale 3
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
40 nm
5.7 billion
Transistors
2.64 billion
232 mm²
Die Size
389 mm²
Board Design
150W
TDP
375W
450 W
Suggested PSU
750 W
1x DVI 1x HDMI 2.0b 3x DisplayPort 1.4a
Outputs
1x DVI 4x mini-DisplayPort 1.2
1x 8-pin
Power Connectors
2x 8-pin
Graphics Features
12 (12_0)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.1
OpenCL
1.2
1.2
Vulkan
N/A
-
CUDA
-
6.4
Shader Model
5.0
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