GPU Comparison
RADEON
AMD Radeon HD 7970
CORE STATE
Tahiti
VRAM
3 GB
CLOCK SPEED
—
TDP
250 W
BUS WIDTH
384 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2012
VS
RADEON
Radeon RX 460
CORE STATE
Baffin
VRAM
2 GB
CLOCK SPEED
1200 MHz
TDP
75 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2016
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_metal
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7970
RX 460
Core Specs
Shading Units
2,048
896
-56.3%
Shaders
2,048
896
-56.3%
TMUs
128
56
-56.3%
ROPs
32
16
-50.0%
Compute Units
32
14
-56.3%
Clocks
Base Clock
—
1090 MHz
Boost Clock
—
1200 MHz
GPU Clock
925 MHz
—
Memory Clock
1375 MHz
5.5 Gbps effective
1750 MHz
7 Gbps effective
Memory
Memory Size
3 GB
2 GB
VRAM (MB)
3,072
2,048
-33.3%
Memory Type
GDDR5
GDDR5
Memory Bus
384 bit
128 bit
Bandwidth
264.0 GB/s
112.0 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
1024 KB
Performance
Pixel Rate
29.60 GPixel/s
19.20 GPixel/s
Texture Rate
118.4 GTexel/s
67.20 GTexel/s
FP32 (TFLOPS)
3.789 TFLOPS
2.150 TFLOPS
FP64 (TFLOPS)
947.2 GFLOPS (1:4)
134.4 GFLOPS (1:16)
FP16 (TFLOPS)
—
2.150 TFLOPS (1:1)
Power
TDP
250 W
75 W
TDP (W)
250
75
-70.0%
Suggested PSU
600 W
250 W
Power Connectors
1x 6-pin + 1x 8-pin
None
Architecture
Architecture
GCN 1.0
GCN 4.0
GPU Name
Tahiti
Baffin
Generation
Southern Islands
(HD 7900)
Arctic Islands
(RX 400)
Process Size
28 nm
14 nm
Transistors
4,313 million
3,000 million
Die Size
352 mm²
123 mm²
Foundry
TSMC
GlobalFoundries
Density
12.3M / mm²
24.4M / mm²
API Support
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.3
OpenCL
2.1 (1.2)
2.1
Shader Model
6.5 (5.1)
6.7
Physical
Slot Width
Dual-slot
Dual-slot
Length
275 mm
10.8 inches
170 mm
6.7 inches
Height
111 mm
4.4 inches
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x8
Other
Launch Price
549 USD
—
Production
End-of-life
End-of-life
Predecessor
Northern Islands
Pirate Islands
Successor
Sea Islands
Polaris