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 R9 370X
CORE STATE
Trinidad
VRAM
2 GB
CLOCK SPEED
1030 MHz
TDP
180 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2015
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7970
R9 370X
Core Specs
Shading Units
2,048
1,280
-37.5%
Shaders
2,048
1,280
-37.5%
TMUs
128
80
-37.5%
ROPs
32
32
0.0%
Compute Units
32
24
-25.0%
Clocks
Base Clock
—
980 MHz
Boost Clock
—
1030 MHz
GPU Clock
925 MHz
—
Memory Clock
1375 MHz
5.5 Gbps effective
1400 MHz
5.6 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
256 bit
Bandwidth
264.0 GB/s
179.2 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
512 KB
Performance
Pixel Rate
29.60 GPixel/s
32.96 GPixel/s
Texture Rate
118.4 GTexel/s
82.40 GTexel/s
FP32 (TFLOPS)
3.789 TFLOPS
2.637 TFLOPS
FP64 (TFLOPS)
947.2 GFLOPS (1:4)
164.8 GFLOPS (1:16)
Power
TDP
250 W
180 W
TDP (W)
250
180
-28.0%
Suggested PSU
600 W
450 W
Power Connectors
1x 6-pin + 1x 8-pin
2x 6-pin
Architecture
Architecture
GCN 1.0
GCN 1.0
GPU Name
Tahiti
Trinidad
Generation
Southern Islands
(HD 7900)
Pirate Islands
(R9 300)
Process Size
28 nm
28 nm
Transistors
4,313 million
2,800 million
Die Size
352 mm²
212 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
13.2M / mm²
API Support
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.170
OpenCL
2.1 (1.2)
2.1 (1.2)
Shader Model
6.5 (5.1)
6.5 (5.1)
Physical
Slot Width
Dual-slot
Dual-slot
Length
275 mm
10.8 inches
221 mm
8.7 inches
Height
111 mm
4.4 inches
111 mm
4.4 inches
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Other
Launch Price
549 USD
199 USD
Production
End-of-life
End-of-life
Predecessor
Northern Islands
Volcanic Islands
Successor
Sea Islands
Arctic Islands