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GPU Comparison
AMD Radeon HD 6990 vs AMD Radeon RX 460 1024SP
AMD Radeon HD 6990 vs AMD Radeon RX 460 1024SP
VS
AMD Radeon HD 6990
AMD Radeon RX 460 1024SP
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 2GB VRAM Radeon RX 460 1024SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6990 's Advantages
Larger VRAM bandwidth (160.0GB/s vs 112.0GB/s)
512 additional rendering cores
AMD Radeon RX 460 1024SP 's Advantages
Released 5 years and 10 months late
Boost Clock1200MHz
Lower TDP (75W vs 375W)
Score
Benchmark
FP32 (float)
Radeon HD 6990
+3%
2.55 TFLOPS
Radeon RX 460 1024SP
2.458 TFLOPS
Radeon HD 6990
VS
Radeon RX 460 1024SP
Graphics Card
Mar 2011
Release Date
Jan 2017
Northern Islands
Generation
Arctic Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
1090 MHz
-
Boost Clock
1200 MHz
1250 MHz
Memory Clock
1750 MHz
Memory
2GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
160.0GB/s
Bandwidth
112.0GB/s
Render Config
-
SM Count
-
24
Compute Units
16
1536
Shading Units
1024
96
TMUs
64
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
1024 KB
Theoretical Performance
26.56 GPixel/s
Pixel Rate
19.20 GPixel/s
79.68 GTexel/s
Texture Rate
76.80 GTexel/s
-
FP16 (half)
2.458 TFLOPS
2.550 TFLOPS
FP32 (float)
2.458 TFLOPS
637.4 GFLOPS
FP64 (double)
153.6 GFLOPS
Graphics Processor
Antilles
GPU Name
Baffin
Antilles XT (215-0807027)
GPU Variant
Baffin XT
TeraScale 3
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
40 nm
Process Size
14 nm
2.64 billion
Transistors
3 billion
389 mm²
Die Size
123 mm²
Board Design
375W
TDP
75W
750 W
Suggested PSU
250 W
1x DVI 4x mini-DisplayPort 1.2
Outputs
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
2x 8-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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