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
GEFORCE
GeForce GTX 465
CORE STATE
GF100
VRAM
1024 MB
CLOCK SPEED
—
TDP
200 W
BUS WIDTH
256 bit
ARCHITECTURE
Fermi
PROCESS
40 nm
LAUNCH DATE
2010
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7970
GTX 465
Core Specs
Shading Units
2,048
352
-82.8%
Shaders
2,048
352
-82.8%
TMUs
128
44
-65.6%
ROPs
32
32
0.0%
Compute Units
32
—
SM Count
—
11
Clocks
GPU Clock
925 MHz
608 MHz
Shader Clock
—
1215 MHz
Memory Clock
1375 MHz
5.5 Gbps effective
802 MHz
3.2 Gbps effective
Memory
Memory Size
3 GB
1024 MB
VRAM (MB)
3,072
1,024
-66.7%
Memory Type
GDDR5
GDDR5
Memory Bus
384 bit
256 bit
Bandwidth
264.0 GB/s
102.7 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SM)
L2 Cache
768 KB
512 KB
Performance
Pixel Rate
29.60 GPixel/s
13.38 GPixel/s
Texture Rate
118.4 GTexel/s
26.75 GTexel/s
FP32 (TFLOPS)
3.789 TFLOPS
855.4 GFLOPS
FP64 (TFLOPS)
947.2 GFLOPS (1:4)
106.9 GFLOPS (1:8)
Power
TDP
250 W
200 W
TDP (W)
250
200
-20.0%
Suggested PSU
600 W
550 W
Power Connectors
1x 6-pin + 1x 8-pin
2x 6-pin
Architecture
Architecture
GCN 1.0
Fermi
GPU Name
Tahiti
GF100
Generation
Southern Islands
(HD 7900)
GeForce 400
Process Size
28 nm
40 nm
Transistors
4,313 million
3,100 million
Die Size
352 mm²
529 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
5.9M / mm²
API Support
DirectX
12 (11_1)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
—
OpenCL
2.1 (1.2)
1.1
CUDA
—
2.0
Shader Model
6.5 (5.1)
5.1
Physical
Slot Width
Dual-slot
Dual-slot
Length
275 mm
10.8 inches
241 mm
9.5 inches
Height
111 mm
4.4 inches
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
2x DVI1x mini-HDMI 1.3a
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Other
Launch Price
549 USD
279 USD
Production
End-of-life
End-of-life
Predecessor
Northern Islands
GeForce 200
Successor
Sea Islands
GeForce 500