AMD Radeon HD 7970 X2 vs NVIDIA GeForce GTX 670

Table of Contents

Graphics Processor

GPU model New Zealand GK104
Architecture GCN 1.0 Kepler
Foundry TSMC TSMC
Manufacturing process 28 nm 28 nm
Number of transistors 4,313 million 3,540 million
Die size 352 mm² 294 mm²
GPU variant GK104-325-A2

Graphics Card

Release date Aug 31st, 2012 May 10th, 2012
Generation Southern Islands GeForce 600
Production End-of-life End-of-life
Launch price 899 USD 399 USD
Interface PCIe 3.0 x16 PCIe 3.0 x16
Reviews 37 in our database 108 in our database
Predecessor Northern Islands GeForce 500
Successor Sea Islands GeForce 700

Clocks

GPU clock 925 MHz
Memory clock 1375 MHz 5.5 Gbps effective 1502 MHz 6 Gbps effective
Base clock 915 MHz
Boost clock 980 MHz

Memory Configuration

Memory size 3 GB 2 GB
Memory type GDDR5 GDDR5
Memory bus width 384 bit 256 bit
Bandwidth 264.0 GB/s 192.3 GB/s

Render Configuration

Shading units 2048 1344
TMUs 128 112
ROPs 32 32
Compute units 32
Cache L1 16 KB (per CU) 16 KB (per SMX)
Cache L2 768 KB 512 KB
SMX count 7

Performance

Pixel rate 29.60 GPixel/s 27.44 GPixel/s
Texture rate 118.4 GTexel/s 109.8 GTexel/s
FP32 (float) performance 3.789 TFLOPS 2.634 TFLOPS
FP64 (double) performance 947.2 GFLOPS (1:4) 109.8 GFLOPS (1:24)

Dimensions & Outputs

Slot width Triple-slot Dual-slot
Length 308 mm 12.1 inches 241 mm 9.5 inches
Width 137 mm 5.4 inches 111 mm 4.4 inches
Height 62 mm 2.4 inches 38 mm 1.5 inches
TDP 500 W 170 W
Suggested PSU 900 W 450 W
Outputs 2x DVI1x HDMI2x mini-DisplayPort 2x DVI1x HDMI1x DisplayPort
Power connectors 3x 8-pin 2x 6-pin
Board number C386 P2004

API Support & Features

DirectX 12 (11_1) 12 (11_0)
OpenGL 4.6 4.6
OpenCL 1.2 3.0
Vulkan 1.2 1.1
Shader model 5.1 5.1
CUDA 3.0

Other Features

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