AMD Radeon HD 6990 vs AMD Radeon RX 460
GPU Specs Compare
Graphics Card
Release Date
Mar 2011
Aug 2016
Generation
Northern Islands
Arctic Islands
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x8
Clock Speeds
Memory Clock
1250 MHz
1750 MHz
Base Clock
-
1090 MHz
Boost Clock
-
1200 MHz
Memory
Memory Size
2GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
128bit
Bandwidth
160.0GB/s
112.0GB/s
Render Config
Compute Units
24
14
Shading Units
1536
896
TMUs
96
56
ROPs
32
16
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
1024 KB
Theoretical Performance
Pixel Rate
26.56 GPixel/s
19.20 GPixel/s
Texture Rate
79.68 GTexel/s
67.20 GTexel/s
FP32 (float)
2.550 TFLOPS
2.150 TFLOPS
FP64 (double)
637.4 GFLOPS
134.4 GFLOPS
FP16 (half)
-
2.150 TFLOPS
Graphics Processor
GPU Name
Antilles
Baffin
GPU Variant
Antilles XT(215-0807027)
Baffin PRO
Architecture
TeraScale 3
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
40 nm
14 nm
Transistors
2.64 billion
3 billion
Die Size
389 mm²
123 mm²
Board Design
TDP
375W
75W
Suggested PSU
750 W
250 W
Outputs
1x DVI4x mini-DisplayPort 1.2
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
11.2 (11_0)
12 (12_0)
OpenGL
4.4
4.6
OpenCL
1.2
2.1
Vulkan
N/A
1.2
Shader Model
5.0
6.4
📊 Benchmark
3DMark Time Spy
-
1,754
3DMark Time Spy Extreme
-
776
Shadow of the Tomb Raider 2160p
-
3
Shadow of the Tomb Raider 1440p
-
12
Shadow of the Tomb Raider 1080p
-
22